WO2015088203A1 - Apparatus for producing rapid-hardening concrete by intermixing and dissipating air in normal concrete and adding early-strength admixture thereto, and method for producing same - Google Patents

Apparatus for producing rapid-hardening concrete by intermixing and dissipating air in normal concrete and adding early-strength admixture thereto, and method for producing same Download PDF

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Publication number
WO2015088203A1
WO2015088203A1 PCT/KR2014/011981 KR2014011981W WO2015088203A1 WO 2015088203 A1 WO2015088203 A1 WO 2015088203A1 KR 2014011981 W KR2014011981 W KR 2014011981W WO 2015088203 A1 WO2015088203 A1 WO 2015088203A1
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Prior art keywords
concrete
mixed
fast
crude steel
air
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PCT/KR2014/011981
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French (fr)
Korean (ko)
Inventor
윤경구
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강원대학교산학협력단
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Priority to US15/103,269 priority Critical patent/US10207233B2/en
Priority to CN201480075265.6A priority patent/CN105992681B/en
Priority claimed from KR1020140174606A external-priority patent/KR101614119B1/en
Publication of WO2015088203A1 publication Critical patent/WO2015088203A1/en

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite

Definitions

  • the present invention relates to a fast-hard concrete manufacturing apparatus for manufacturing fast-hard concrete and a method of manufacturing the same, and more particularly, to the air-mixing material to the air bubbles to be removed in the formation of fast-hard concrete with a general concrete mixture
  • the air-mixing material to the air bubbles to be removed in the formation of fast-hard concrete with a general concrete mixture
  • the cost aspect should be considered since it is much more expensive than the crude cement concrete, and the other, the resistance to freeze-thawing or cracking is weakened, reducing the long-term utility.
  • the crude concrete expresses 21 MPa compressive strength, which is the practical strength within 3 days, and expresses early strength by using crude steel cement or using crude steel mixed material or crude chemical chemical admixture.
  • Ultra-tensioned concrete expresses the practical strength in one day, and early strength is generally expressed by using a crude steel mixed material.
  • Cemented carbide cements are used in various emergency constructions because they exhibit utility strength after 3 hours of mixing with water.
  • the cemented carbide cements are classified into alumina cemented carbide, amorphous alumina cemented carbide, and Irwin cemented carbide according to the constituent minerals exhibiting the cementing properties.
  • These cemented carbide cements are blended 20 to 45% of each cemented carbide clinker powder with ordinary Portland cement, depending on its properties.
  • the cemented state refers to a state in which the cement paste is still soft, but the fluidity is lost, and the time of the cement paste is referred to as a cementing time, and the time is elapsed to show a solidified state. This is called.
  • the present invention has been made to solve the above problems, an object of the present invention, by mixing water, cement, aggregates, etc. mixed with air bubbles and crude steel mixed material in ordinary concrete transported to the site to improve the ball bearing effect of bubbles
  • the mixed concrete is used to form a mixed concrete, and when the mixed concrete is discharged, it is blown with high-pressure air to reduce the excess air contained in the mixed concrete, and at the same time, a large increase in slump due to the large amount of bubbles is achieved.
  • the present invention provides a fast concrete manufacturing apparatus and a method for manufacturing the fast concrete to produce fast concrete by adding air mixing and dissipation and crude steel mixture to the normal concrete shortening the fast concrete reduced to the slump range of the normal concrete.
  • Another object of the present invention because it is possible to manufacture only the amount of fast-hard concrete at the construction site, through the air mixing and dissipation and the addition of crude steel mixed materials to ordinary concrete that can improve the economics by reducing production and construction cost
  • An object of the present invention is to provide a fast concrete manufacturing apparatus and a method for manufacturing the fast concrete.
  • the present invention provides a fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the air mixing and dissipation and the addition of crude steel mixture to the ordinary concrete,
  • a normal concrete forming unit which mixes water, cement, and aggregate at a predetermined ratio to form normal concrete
  • a bubble and crude mixed material input unit for adding bubbles and crude steel mixed material to the ordinary concrete to increase the slump of the ordinary concrete
  • the mixed concrete is mixed with the ordinary concrete and the air bubbles and the crude steel mixed material is mixed with the common concrete and the air bubbles and the crude steel mixed material while the bubble formed in the concrete concrete and the shaft formed inside the ready-mixed truck and the mixing member projecting on the shaft rotates by the power of the motor.
  • the fast concrete shorting portion for shortening the fast concrete to reduce the slump increased due to the bubble to the slump range of the ordinary concrete while blowing out the bubbles contained in the mixed concrete by blowing with high pressure air of 5 atm or more It is characterized by including the configuration.
  • the present invention the method of producing fast-hard concrete to produce fast-hard concrete by adding air mixing and dissipation and crude steel mixed material to the ordinary concrete,
  • the mixed concrete is mixed with the ordinary concrete and the air bubbles and the crude steel mixed material is mixed with the common concrete and the air bubbles and the crude steel mixed material while the bubble formed in the concrete concrete and the shaft formed inside the ready-mixed truck and the mixing member projecting on the shaft rotates by the power of the motor.
  • Mixed concrete forming step of forming
  • the mixed concrete in which the crude steel mixed material is well dispersed in the ordinary concrete is formed by using the ball bearing effect of bubbles and crude steel mixed material in ordinary concrete, and the mixed concrete is discharged.
  • the high-pressure air to reduce the excess air contained in the mixed concrete at the same time by reducing the slump significantly increased due to the large amount of bubbles in the concrete concrete slump range, the fast hardening can be secured You can have this advantage.
  • FIG. 6 is an enlarged photograph of the bubble slurry produced by FIG. 5
  • 15 is a slump photograph of the present invention fast-hard concrete
  • 17 is a graph of slump loss variable according to time of the mixed concrete of the present invention
  • FIG. 1 is a flowchart of the present invention
  • FIG. 2 is a schematic diagram of the present invention.
  • the fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the mixing of air and dissipation and the addition of crude steel mixture to the normal concrete, the normal concrete forming unit to form a normal concrete by mixing water, cement, aggregate in a certain ratio ( 110 is configured, the bubble and the crude steel mixed material input unit 120 is configured to increase the slump of the ordinary concrete by injecting bubbles and crude steel mixed material into the ordinary concrete, the normal concrete, the normal concrete.
  • the mixed air bubbles and the crude steel mixed material is mixed with ordinary concrete and air bubbles and crude steel mixed materials while the shaft 131 formed inside the ready-mixed concrete truck 111 and the mixing member 132 protruding from the shaft 131 rotate with the power of a motor.
  • the mixed concrete forming unit 130 is formed to form a mixed concrete, and when the mixed concrete is discharged, it is blown with high pressure air of 5 atm or more
  • the slump increase caused by the bubble dissipation, while the bubbles contained in the mixed concrete is typically configured to include a hard concrete in a short tingbu 140 syotting in a hard concrete that reduced to a range of concrete slump.
  • the fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the mixing of air, dissipation, and crude steel mixed materials in ordinary concrete
  • the normal concrete forming unit for forming the normal concrete by mixing water, cement, aggregate in a certain ratio 110 is configured, the bubble and the crude steel mixed material input unit 120 is configured to increase the slump of the ordinary concrete by injecting bubbles and crude steel mixed material into the ordinary concrete
  • the normal concrete, the normal concrete Mixed concrete forming unit for supplying the bubble and the crude steel mixed material is supplied to the movement guide member 134 through the hopper 133 and at the same time by mixing the normal concrete and the foam and the crude steel mixed material by the rotation of the screw 135 to form a mixed concrete 130 'is formed, and when the mixed concrete is discharged, bubbles contained in the mixed concrete are blown into the air of high pressure of 5 atm or more Dissipation, while the increase in slump due to air bubbles is typically configured to include a hard concrete in a short tingbu 140 syotting in a hard concrete that reduced
  • the bubble and the crude steel mixed material input unit 120 is preferably added to the bubble and the slurry sequentially or to the bubble slurry mixed with the bubble and the slurry.
  • the slurry is preferably produced by mixing the crude steel mixture material and water.
  • the crude steel mixture material is formed by mixing at least one or one or more of an alumina-based carbide tip clinker powder, an amorphous alumina-based carbide tip clinker powder, and an Arwin-based carbide tip clinker powder.
  • the crude concrete expresses 21 MPa compressive strength, which is a practical strength within 3 days after mixing with water, and the crude steel mixed material is mixed at 5 to 20 parts by weight based on 100 parts by weight of cement, which usually forms concrete.
  • the super rough steel concrete expresses 21 MPa compressive strength, which is a practical strength within 1 day after mixing with water, and the crude steel mixed material is mixed with 15 to 25 parts by weight based on 100 parts by weight of cement, which usually forms concrete.
  • the superhard concrete expresses 21 MPa compressive strength, which is a practical strength within 3 hours after mixing with water, and the crude steel mixed material is mixed at 25 to 40 parts by weight based on 100 parts by weight of cement, which usually forms concrete.
  • the bubble is generated by any one of a foaming agent, a bubble generator, and a foaming agent, and is mixed so as to be 20 to 40% based on the normal concrete 100 basis.
  • the antifoaming agent is added to reduce the excessive bubbles in terms of strength and slump of fast-hard concrete.
  • the fast concrete shorting part 140 is provided with a shorting guide member 141, which is formed to be detachably mounted to the mixed concrete forming part and has a diameter smaller in the center than both ends thereof penetrated therein so that the mixed concrete is compressed and discharged. And an air supply hole 142 for supplying high pressure air of 5 atm or more to dissipate bubbles contained in the mixed concrete that is penetrated by the shorting guide member 141 and moved to the shorting guide member 141. It is provided including.
  • the air supply hole 142 is radially inclined to the outer circumferential surface of the shorting guide member 141.
  • the ordinary concrete of 40mm or less of slump is transferred to the construction site by a dump truck.
  • At least one of the alumina-based cemented carbide clinker powder, amorphous alumina-based cemented carbide clinker powder, Irwin-based cemented carbide clinker powder from the bubble and the crude steel mixed material input unit 120 or A slurry is produced by mixing the crude steel mixture material formed by mixing one or more with water in a ratio of 1: 1, and the slurry produced by mixing the bubbles produced by the foaming agent and the bubble generator to form a bubble slurry, and then put into ordinary concrete.
  • the bubble slurry is preferably mixed by mixing 1 kg of crude steel mixture material: 8 to 10 L of air bubbles, but preferably considering the strength and slump of the final fast-hard concrete.
  • the foaming agent is a method of injecting bubbles made from the outside into the ordinary concrete already blended, usually diluted with 30 to 50 times of water to obtain a volume of air up to about 80 as a mixed material to physically introduce bubbles by the surface active action
  • the effective amount of bubbles in the present invention preferably contains 20 to 40% of the air compared to the entire fast-hard concrete, the bubble has a shape close to the spherical shape and the size of the fine bubbles present in the range 0.01 ⁇ 0.3mm Is preferred.
  • the bubble may be generated as a blowing agent, which is usually added to concrete and stirred, and generates bubbles in the process of remixing, which is formed by the high speed rotation of the mixer. Although the distribution is relatively uniform, a large difference occurs in the amount of bubble generation depending on the mixing time.
  • the foaming agent is aluminum powder, it is preferable to use 0.1 ⁇ 0.5% of the entire fast-hard concrete.
  • FIG. 6 An enlarged photograph of the bubble slurry containing the bubble and the crude steel mixture material is shown in FIG. 6, and the size of the bubble A contained in the bubble slurry is about 0.1 to 1 mm while the crude steel mixture material (S) is formed between the bubbles. ) Are evenly distributed.
  • the bubble slurry in which the bubbles and the slurry are mixed is added to ordinary concrete.
  • the bubbles and the slurry may be sequentially added to the normal concrete.
  • a crude steel mixture material formed by mixing at least one or at least one of air bubbles, alumina-based carbide tip clinker powder, amorphous alumina-based carbide tip clinker powder, and Awin-based carbide tip clinker powder without mixing the slurry. It can be put in.
  • the crude steel concrete expressing 21 MPa compressive strength within 3 days is formed by mixing 5 to 20 parts by weight of the crude steel mixed material based on 100 parts by weight of the cement to form the ordinary concrete, expressing 21 MPa compressive strength within 1 day
  • the super rough steel concrete is formed by mixing 15 to 25 parts by weight of the crude steel mixed material based on 100 parts by weight of the cement to form the ordinary concrete, and the superhard concrete expressing 21 MPa compressive strength within 3 hours forms the ordinary concrete. It is formed by mixing 25 to 40 parts by weight of the crude steel mixed material based on 100 parts by weight of cement, which is less than the above range, the high strength and high durability is lower, and when it is larger than the above range, the high strength and high durability is not shown higher This is because city parks rise.
  • the mixing ratio is usually mixed with 300 ⁇ 400l of bubble slurry per 1m3 of concrete so that 30 to 35% of the bubble content is contained in the mixed concrete.
  • the mixed concrete forming unit 130 may include at least one shaft 131 formed inside the ready-mixed concrete truck 111 at the same time as the shaft 131 rotates with the power of a motor.
  • the mixing member 132 formed radially or more rotates, the mixture of ordinary concrete and bubble slurry or bubble and crude steel mixture or foaming agent and crude mixture is mixed with the crude steel mixture material well dispersed in ordinary concrete by using the ball bearing effect of bubbles. To form concrete.
  • the slump 40mm or less of the concrete is transported to the dump truck is supplied to the movement guide member 134 through the hopper 133 of the mixed concrete forming unit 130 'and at the same time the movement guide member
  • the normal concrete supplied to the 134 moves along the movement guide member 134 by the rotation of the screw 135, and bubbles and crude steel mixed material input unit 120 moves on the normal concrete moving along the movement guide member 134.
  • bubble and crude steel mixed material are added, and the ordinary concrete and the crude steel mixed material are mixed by the rotation of the screw 135.
  • the bubble and the crude steel mixed material can be added separately, but since the mixing time of the bubble and the crude steel mixed material and the normal concrete according to the rotation of the screw 135 is short, it is preferable to add the bubble slurry to the normal concrete.
  • the mixed concrete forming unit 130 ′ is a vertical stirring mixer, which is formed to be inclined so that the outlet side is higher than the inlet side so that bubble slurry and ordinary concrete are easily mixed by the height difference of the mixing member 135. do.
  • Figure 10 shows the slump of the normal concrete, the mixing ratio of water, cement, aggregate, etc. used for the normal concrete is generally in accordance with the standard compounding ratio widely used, showing a slump 0mm state
  • Figure 11 It shows that the slump of ordinary concrete after the bubble slurry is blended is 230 mm. That is, FIG. 10 shows that the amount of air present in the normal concrete before the bubble slurry is blended is 3%. However, FIG. 11 shows that the amount of air present in the normal concrete in which the bubble slurry is blended is 26%.
  • the present invention as shown in Figure 12 to 13, to add a defoaming agent to the mixed concrete in order to reduce the amount of air contained in the mixed concrete mixed in the mixed concrete forming unit 130, 130 ' Or shortening is performed by the fast concrete shortening unit 140.
  • the antifoam agent is a substance that suppresses the generation of air bubbles used for the purpose of removing and controlling air bubbles mixed so as to evenly disperse the crude steel mixture material in ordinary concrete. V), and suppressing the generation of bubbles from the beginning is called suppression, and in the present invention, it can be used as a defoamer for the purpose of removing the excessive bubbles already present.
  • antifoaming agents used in the mixed concrete, it is preferable to mix 0.1 to 2.0 parts by weight based on 100 parts by weight of fast-hard concrete.
  • the mixed concrete forming part 130 is detachably attached to the ready-mixed concrete truck 111 or the moving guide member 134 of the mixed concrete forming part 130 ′. It is supplied to the inlet of the installed shorting guide member 141.
  • the diameter of the central portion is smaller than both ends of the inlet and the outlet through which the shorting guide member 141 penetrates inside, the mixed concrete supplied to the shorting guide member 141 is compressed to generate pressure.
  • the mixed concrete passes through the central portion of the shorting guide member 141 to the outlet larger than the diameter of the central portion at the same time the compressed air of high pressure or more than 5 atm shorting guide member 141 While supplied to the air supply hole 142 is formed to be inclined radially on the outer peripheral surface of the shorting guide member 141 is vortexed by the outlet of the shorting, the compressed air and mixed concrete is spread by the spray method as well as the compressed air and mixed concrete While colliding, a large amount of bubbles contained in the mixed concrete is dissipated.
  • the amount of bubbles contained in the mixed concrete in which the bubbles are dissipated is not only close to the range of the amount of air contained in the ordinary concrete before mixing the bubble slurry, but also reduces the amount of air contained in the mixed concrete to 3-7% while reducing the amount of air contained in the mixed concrete. It can be shortened to fast-hard concrete to ensure workability, high strength and high durability.
  • the basic properties and durability of the fast-hard concrete were measured according to KS regulations and ASTM, and the detailed outline thereof is shown in Table 1, and as shown in FIGS. 16 to 17, the slump loss test was not performed while measuring at intervals of 5 minutes. , Continuous stirring of the mixed concrete, slump loss test results for the mixed concrete containing the crude steel mixed material and bubbles, after about 15 to 20, the slump drop of less than 200mm occurs, about 30 to 35 minutes Afterwards, it can be seen that most of the mixed concrete appears to lose fluidity.
  • the condensation experiment of mixed concrete as shown in Figure 17 and Table 2, as a result of the condensation experiment on the mixed concrete, the RHA-20% variable was found to be the initial 68 minutes, the termination 98 minutes, the RHA -30% variable 59 minutes were concluded and 76 minutes were terminated.
  • the RHA-30% (AB) variable it can be seen that the settling delay is significantly increased compared to the conventional formulation.
  • the compressive strength of mixed concrete as shown in Fig. 18, satisfies more than 12 hours 21MPa only in the RHA-30% variable, and satisfies more than 21MPa in all the variables after 1 day, and RHA-30% having a large coagulation delay.
  • the variable (AB) shows strength characteristics similar to those of RHA-20%.
  • the present invention although the alumina-based super-speed clinker powder, amorphous alumina-based super-speed clinker powder, and Awin-based super-speed clinker powder, etc. as an example of the crude steel mixture material in the above embodiment, but exhibits the properties of fast-hardening in addition to the crude steel mixture
  • the manufacturing apparatus and the manufacturing method of the present invention can be applied to other crude steel mixture material that is economically recognized.

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Abstract

The present invention relates to an apparatus for producing rapid-hardening concrete and a method for producing same, the rapid-hardening concrete being produced by intermixing and dissipating air in normal concrete and adding an early-strength admixture thereto. With respect to forming rapid-hardening concrete, mixed concrete is formed by mixing in a large volume of air bubbles to be discarded, along with an early-strength admixture, to already mixed normal concrete, the early-strength admixture getting evenly dispersed therewithin by means of the ball bearing effect of the air bubbles, and when the mixed concrete is discharged, a rapid-hardening concrete is shotcreted while excess air contained in the mixed concrete is dissipated by means of high-pressure air, the slump which was raised due to the large amount of air bubbles having been reduced to the slump range for normal concrete.

Description

보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치 및 이의 제조방법Rapid-hard concrete manufacturing apparatus for manufacturing fast-hard concrete by mixing air and dispersing and adding crude steel mixture to ordinary concrete and its manufacturing method
본 발명은 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치 및 이의 제조방법에 관한 것으로, 보다 상세하게는, 속경성 콘크리트를 형성함에 있어서 제거해야 할 기포를 이미 배합된 보통콘크리트에 조강혼합재료와 함께 다량으로 혼합하여 기포의 볼 베어링 효과를 이용해 조강혼합재료가 보통콘크리트 내에 고루 분산되는 혼합콘크리트를 형성하고, 이 혼합콘크리트를 배출할 때, 고압의 공기로 혼합콘크리트에 포함된 과다한 공기를 소산시키면서 다량의 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치 및 이의 제조방법에 관한 것이다.The present invention relates to a fast-hard concrete manufacturing apparatus for manufacturing fast-hard concrete and a method of manufacturing the same, and more particularly, to the air-mixing material to the air bubbles to be removed in the formation of fast-hard concrete with a general concrete mixture By mixing a large amount, using the ball bearing effect of bubbles to form a mixed concrete in which the crude steel mixture is evenly dispersed in the normal concrete, when discharging the mixed concrete, while discharging the excess air contained in the mixed concrete with high-pressure air Apparatus and method for manufacturing the fast-hardening concrete for manufacturing fast-hardening concrete by adding air mixing and dissipation and crude steel mixture to short-concrete concrete shortening the increased slump due to bubbles It is about.
현재까지 조기강도를 발현시키는 방법이 크게 두 가지 방법으로 대별되는데, 그 중 하나는 보통포틀랜드 시멘트 재료를 그대로 사용하는 것이고, 다른 하나는 보통포틀랜드 시멘트에 조강혼합재료를 혼입하는 것이다.To date, early strength is largely classified into two methods, one of which is to use ordinary Portland cement material, and the other is to incorporate crude steel mixture material into ordinary Portland cement.
종래의 보통포틀랜드 시멘트에 초기 재령에서 높은 강도를 발현하기 위해 분말도를 크게 하거나 조기강도를 발현시키는 성분들을 많게 조절하여 제조한 조강 시멘트 또는 조강혼합재료를 혼입하여 조강 시멘트 콘크리트보다 훨씬 더 큰 조기강도를 발현시킬 수 있도록 하는데, 이를 사용할 때 유의해야 할 점은 경제성과 내구성 문제이다.Early strength significantly higher than that of crude cement concrete by incorporating crude steel cement or crude steel mixture material prepared by increasing the powder level or controlling the components expressing the early strength in order to express high strength at early age in conventional ordinary portland cement It should be noted that the economic and durability issues to be noted when using it.
즉, 조강혼합재료를 혼입할 경우, 조강 시멘트 콘크리트보다 훨씬 더 비싸기 때문에 비용측면이 고려되어야 하며, 다른 하나는 동결-융해나 균열에 대해 저항성이 약화되어 장기 공용성을 저하시킨다.In other words, when incorporating the crude steel mixture material, the cost aspect should be considered since it is much more expensive than the crude cement concrete, and the other, the resistance to freeze-thawing or cracking is weakened, reducing the long-term utility.
조강 콘크리트는 3일 이내에 실용강도인 21MPa 압축강도를 발현하는 것으로, 조강 시멘트를 사용하거나, 조강혼합재료나 조강형 화학 혼화제를 사용하여 조기강도를 발현시킨다. 초조장 콘크리트는 1일에 실용강도를 발현하는 것으로, 일반적으로 조강혼합재료를 사용하여 조기강도를 발현시킨다.The crude concrete expresses 21 MPa compressive strength, which is the practical strength within 3 days, and expresses early strength by using crude steel cement or using crude steel mixed material or crude chemical chemical admixture. Ultra-tensioned concrete expresses the practical strength in one day, and early strength is generally expressed by using a crude steel mixed material.
초속경 시멘트는, 물과 혼합 후 3시간 후에 실용강도를 발현하기 때문에 각종 긴급공사에 사용된다. 초속경 시멘트는 속경성을 발현하는 구성광물에 따라 알루미나계 초속경 시멘트, 비정질알루미나계 초속경 시멘트, 아윈계 초속경 시멘트로 대별된다. 이러한 초속경 시멘트는 각각의 초속경 클링커분말을 속경성 특성에 따라 보통포틀랜드 시멘트에 20~45% 혼합한 것이다.Cemented carbide cements are used in various emergency constructions because they exhibit utility strength after 3 hours of mixing with water. The cemented carbide cements are classified into alumina cemented carbide, amorphous alumina cemented carbide, and Irwin cemented carbide according to the constituent minerals exhibiting the cementing properties. These cemented carbide cements are blended 20 to 45% of each cemented carbide clinker powder with ordinary Portland cement, depending on its properties.
국내에서는 1970년대 이후 여러 종류의 초속경 시멘트를 개발하였으며, 그 동안 많이 이용되어 왔으나, 수화반응 후 생성물이 천이(遷移)되어 장기적으로 안정하지 못하고, 특히 염화칼슘에 취약한 면이 있어 겨울철에 사용하는 제설제에 노출되었을 때, 표면박리현상이 심하게 발생하는 등 내구성능이 저하되는 문제점을 내포하고 있다.Various kinds of cemented carbide cements have been developed in Korea since the 1970s, and have been used for a long time. However, since the product transitions after hydration reaction, it is not stable in the long term. Especially, it is vulnerable to calcium chloride. When exposed to the agent, there is a problem in that the durability is reduced, such as severe surface peeling phenomenon occurs.
또한, 조강 콘크리트의 경우, 초결이 60분 이후에 나타나는 것이 일반적임으로 이동시간이 길지 않은 상태에서 레미콘 트럭을 주의 깊게 이용할 수 있으나, 초조강과 속경성 콘크리트의 경우에는 초결이 60분 이내임으로 이들을 배처플랜트에서 생산하여 레미콘 트럭으로 이송하는 것은 거의 불가능하다. 따라 이러한 경우에 모빌 믹서나 현장 소형 믹서를 이용하는데, 이 경우 생산단가를 높이게 된다.In addition, in the case of crude steel concrete, it is common that the first grain appears after 60 minutes, so the ready-mixed concrete truck can be used carefully in a state where the movement time is not long. It is almost impossible to produce and transport them to ready-mixed trucks. In this case, a mobile mixer or a small mixer in the field is used, which increases the production cost.
여기서, 상기 초결은, 시멘트 페이스트가 아직 부드러운 상태이지만 유동성이 없어진 상태를 말하고, 이의 시간을 초결시간이라 하며, 시간이 계속 경과되어 마치 응고된 상태를 보이는데, 이를 종결이라 하고, 이의 시간을 종결시간이라 한다.In this case, the cemented state refers to a state in which the cement paste is still soft, but the fluidity is lost, and the time of the cement paste is referred to as a cementing time, and the time is elapsed to show a solidified state. This is called.
[선행기술문헌][Preceding technical literature]
대한민국 등록특허 제10-0537953호Republic of Korea Patent No. 10-0537953
대한민국 등록특허 제10-0958535호Republic of Korea Patent No. 10-0958535
본 발명은 상술된 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은, 물, 시멘트, 골재 등을 혼합하여 현장으로 이송된 보통콘크리트에 기포 및 조강혼합재료를 혼합하여 기포의 볼 베어링 효과를 이용해 조강혼합재료가 보통콘크리트 내에 잘 분산되는 혼합콘크리트를 형성하고, 이 혼합콘크리트가 배출될 때, 고압의 공기로 뿜어 혼합콘크리트에 포함된 과다한 공기를 줄임과 동시에 다량의 기포로 인해 대폭 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치 및 이의 제조방법을 제공함에 있다.The present invention has been made to solve the above problems, an object of the present invention, by mixing water, cement, aggregates, etc. mixed with air bubbles and crude steel mixed material in ordinary concrete transported to the site to improve the ball bearing effect of bubbles When the mixed concrete is discharged, the mixed concrete is used to form a mixed concrete, and when the mixed concrete is discharged, it is blown with high-pressure air to reduce the excess air contained in the mixed concrete, and at the same time, a large increase in slump due to the large amount of bubbles is achieved. The present invention provides a fast concrete manufacturing apparatus and a method for manufacturing the fast concrete to produce fast concrete by adding air mixing and dissipation and crude steel mixture to the normal concrete shortening the fast concrete reduced to the slump range of the normal concrete.
또한, 본 발명의 다른 목적은, 시공현장에서 속경성 콘크리트를 필요한 양만큼만 제조할 수 있으므로 생산 및 시공단가를 절감하여 경제성을 향상시킬 수 있는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치 및 이의 제조방법을 제공함에 있다.In addition, another object of the present invention, because it is possible to manufacture only the amount of fast-hard concrete at the construction site, through the air mixing and dissipation and the addition of crude steel mixed materials to ordinary concrete that can improve the economics by reducing production and construction cost An object of the present invention is to provide a fast concrete manufacturing apparatus and a method for manufacturing the fast concrete.
본 발명 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치는,The present invention provides a fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the air mixing and dissipation and the addition of crude steel mixture to the ordinary concrete,
물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성부와;A normal concrete forming unit which mixes water, cement, and aggregate at a predetermined ratio to form normal concrete;
상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입부와;A bubble and crude mixed material input unit for adding bubbles and crude steel mixed material to the ordinary concrete to increase the slump of the ordinary concrete;
상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료를 레미콘 트럭 내부에 형성된 축과 상기 축에 돌출된 혼합부재가 모터의 동력으로 회전하면서 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성부와;The mixed concrete is mixed with the ordinary concrete and the air bubbles and the crude steel mixed material is mixed with the common concrete and the air bubbles and the crude steel mixed material while the bubble formed in the concrete concrete and the shaft formed inside the ready-mixed truck and the mixing member projecting on the shaft rotates by the power of the motor. Mixed concrete forming unit to form a;
상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅부를 포함하여 구성되는 것을 특징으로 하는 것이다.When the mixed concrete is discharged, the fast concrete shorting portion for shortening the fast concrete to reduce the slump increased due to the bubble to the slump range of the ordinary concrete while blowing out the bubbles contained in the mixed concrete by blowing with high pressure air of 5 atm or more It is characterized by including the configuration.
또한, 본 발명 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법은,In addition, the present invention, the method of producing fast-hard concrete to produce fast-hard concrete by adding air mixing and dissipation and crude steel mixed material to the ordinary concrete,
물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성단계와;A normal concrete forming step of mixing water, cement, and aggregate at a predetermined ratio to form ordinary concrete;
상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입단계와;Adding a bubble and a crude steel mixed material to the foamed concrete and the crude steel mixed material to increase the slump of the ordinary concrete;
상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료를 레미콘 트럭 내부에 형성된 축과 상기 축에 돌출된 혼합부재가 모터의 동력으로 회전하면서 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성단계와;The mixed concrete is mixed with the ordinary concrete and the air bubbles and the crude steel mixed material is mixed with the common concrete and the air bubbles and the crude steel mixed material while the bubble formed in the concrete concrete and the shaft formed inside the ready-mixed truck and the mixing member projecting on the shaft rotates by the power of the motor. Mixed concrete forming step of forming;
상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅단계를 포함하여 이루어지는 것을 특징으로 하는 것이다.When the mixed concrete is discharged, the fast concrete shortening step of shorting the fast concrete to reduce the slump increased due to the bubble to the slump range of the normal concrete while discharging the bubbles contained in the mixed concrete by blowing with high pressure air of 5 atm or more It is characterized by consisting of.
본 발명에 의하면, 속경성 콘크리트를 형성함에 있어 보통콘크리트에 기포 및 조강혼합재료를 기포의 볼 베어링 효과를 이용하여 조강혼합재료가 보통콘크리트 내에 잘 분산되는 혼합콘크리트를 형성하고, 이 혼합콘크리트가 배출될 때, 고압의 공기로 뿜어 혼합콘크리트에 포함된 과다한 공기를 줄임과 동시에 다량의 기포로 인해 대폭 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅함으로써, 속경성을 확보할 수 있는 이점을 가질 수 있는 것이다.According to the present invention, in forming fast-hard concrete, the mixed concrete in which the crude steel mixed material is well dispersed in the ordinary concrete is formed by using the ball bearing effect of bubbles and crude steel mixed material in ordinary concrete, and the mixed concrete is discharged. When the high-pressure air to reduce the excess air contained in the mixed concrete at the same time, by reducing the slump significantly increased due to the large amount of bubbles in the concrete concrete slump range, the fast hardening can be secured You can have this advantage.
또한, 본 발명에 의하면, 시공현장에서 속경성 콘크리트를 필요한 양만큼만 제조할 수 있으므로 생산 및 시공단가를 절감하여 경제성을 향상시킬 수 있는 이점을 가질 수 있는 것이다.In addition, according to the present invention, it can be produced only the required amount of fast-hard concrete at the construction site will have the advantage to improve the economics by reducing the production and construction cost.
도 1은 본 발명의 흐름도1 is a flow chart of the present invention
도 2는 본 발명의 개략도2 is a schematic diagram of the present invention
도 3은 본 발명 보통콘크리트 형성부를 나타낸 도면3 is a view showing the ordinary concrete forming portion of the present invention
도 4는 본 발명 슬러리의 생성도4 is a production of the slurry of the present invention
도 5는 본 발명 기포슬러리의 생성도5 is a production of the bubble slurry of the present invention
도 6은 도 5에 의해 생성된 기포슬러리의 확대사진FIG. 6 is an enlarged photograph of the bubble slurry produced by FIG. 5
도 7 내지 도 8은 본 발명 혼합콘크리트 형성부를 나타낸 도면7 to 8 is a view showing a mixed concrete forming unit of the present invention
도 9는 본 발명 혼합콘크리트의 다른 실시예를 나타낸 도면9 is a view showing another embodiment of the mixed concrete of the present invention
도 10 내지 도 11은 본 발명에 적용된 보통콘크리트, 혼합콘크리트의 슬럼프 사진10 to 11 is a slump photograph of ordinary concrete, mixed concrete applied to the present invention
도 12 내지 도 13은 본 발명 속경성 콘크리트 숏팅부로 속경성 콘크리트를 숏팅하는 도면12 to 13 is a view for shortening the fast concrete to the fast concrete concrete shorting portion of the present invention
도 14는 본 발명 속경성 콘크리트 숏팅부의 평단면 구성도14 is a cross-sectional configuration diagram of the present invention fast concrete concrete shorting portion
도 15는 본 발명 속경성 콘크리트의 슬럼프 사진15 is a slump photograph of the present invention fast-hard concrete
도 16은 본 발명 혼합콘크리트의 시간에 따른 슬럼프 로스 사진16 is a picture of slump loss according to the time of the mixed concrete of the present invention
도 17은 본 발명 혼합콘크리트의 시간에 따른 슬럼프 로스 변수별 그래프17 is a graph of slump loss variable according to time of the mixed concrete of the present invention
도 18은 본 발명 혼합콘크리트의 응결시험 결과 그래프18 is a graph of the condensation test results of the mixed concrete of the present invention
도 19은 본 발명 혼합콘크리트의 압축강도 시험 결과 그래프19 is a graph of the compressive strength test results of the mixed concrete of the present invention
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
100: 속경성 콘크리트 제조장치100: fast hard concrete manufacturing equipment
110: 보통콘크리트 형성부110: ordinary concrete forming portion
120: 기포 및 조강혼합재료 투입부120: bubble and crude steel mixed material input unit
130: 혼합콘크리트 형성부130: mixed concrete forming portion
140: 속경성 콘크리트 숏팅부140: fast concrete shorting part
이하, 첨부된 도면에 의거하여 본 발명을 상세히 설명한다. 도 1은 본 발명의 흐름도이고, 도 2는 본 발명의 개략도이다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1 is a flowchart of the present invention, and FIG. 2 is a schematic diagram of the present invention.
본 발명 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치는, 물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성부(110)가 구성되고, 상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입부(120)가 구성되며, 상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료를 레미콘 트럭(111) 내부에 형성된 축(131)과 상기 축(131)에 돌출된 혼합부재(132)가 모터의 동력으로 회전하면서 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성부(130)가 구성되고, 상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅부(140)를 포함하여 구성된다.In the present invention, the fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the mixing of air and dissipation and the addition of crude steel mixture to the normal concrete, the normal concrete forming unit to form a normal concrete by mixing water, cement, aggregate in a certain ratio ( 110 is configured, the bubble and the crude steel mixed material input unit 120 is configured to increase the slump of the ordinary concrete by injecting bubbles and crude steel mixed material into the ordinary concrete, the normal concrete, the normal concrete The mixed air bubbles and the crude steel mixed material is mixed with ordinary concrete and air bubbles and crude steel mixed materials while the shaft 131 formed inside the ready-mixed concrete truck 111 and the mixing member 132 protruding from the shaft 131 rotate with the power of a motor. The mixed concrete forming unit 130 is formed to form a mixed concrete, and when the mixed concrete is discharged, it is blown with high pressure air of 5 atm or more The slump increase caused by the bubble dissipation, while the bubbles contained in the mixed concrete is typically configured to include a hard concrete in a short tingbu 140 syotting in a hard concrete that reduced to a range of concrete slump.
또한, 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치는, 물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성부(110)가 구성되고, 상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입부(120)가 구성되며, 상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료가 호퍼(133)를 통해 이동안내부재(134)로 공급됨과 동시에 스크류(135)의 회전으로 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성부(130')가 구성되고, 상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅부(140)를 포함하여 구성된다.In addition, the fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the mixing of air, dissipation, and crude steel mixed materials in ordinary concrete, the normal concrete forming unit for forming the normal concrete by mixing water, cement, aggregate in a certain ratio ( 110 is configured, the bubble and the crude steel mixed material input unit 120 is configured to increase the slump of the ordinary concrete by injecting bubbles and crude steel mixed material into the ordinary concrete, the normal concrete, the normal concrete Mixed concrete forming unit for supplying the bubble and the crude steel mixed material is supplied to the movement guide member 134 through the hopper 133 and at the same time by mixing the normal concrete and the foam and the crude steel mixed material by the rotation of the screw 135 to form a mixed concrete 130 'is formed, and when the mixed concrete is discharged, bubbles contained in the mixed concrete are blown into the air of high pressure of 5 atm or more Dissipation, while the increase in slump due to air bubbles is typically configured to include a hard concrete in a short tingbu 140 syotting in a hard concrete that reduced to a range of concrete slump.
상기 기포 및 조강혼합재료 투입부(120)는, 상기 기포와 슬러리를 순차적으로 투입하거나 상기 기포와 슬러리를 혼합한 기포슬러리를 투입하는 것이 바람직하다.The bubble and the crude steel mixed material input unit 120 is preferably added to the bubble and the slurry sequentially or to the bubble slurry mixed with the bubble and the slurry.
상기 슬러리는, 상기 조강혼합재료와 물을 배합하여 생산되는 것이 바람직하다.The slurry is preferably produced by mixing the crude steel mixture material and water.
상기 조강혼합재료는, 알루미나계 초속경 클링커분말, 비정질알루미나계 초속경 클링커분말, 아윈계 초속경 클링커분말 중 적어도 어느 하나 또는 하나 이상 혼합하여 형성한다.The crude steel mixture material is formed by mixing at least one or one or more of an alumina-based carbide tip clinker powder, an amorphous alumina-based carbide tip clinker powder, and an Arwin-based carbide tip clinker powder.
조강 콘크리트는 물과 혼합 후, 3일 이내에 실용강도인 21MPa 압축강도를 발현하는 것으로, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 5~20 중량부로 혼합된다.The crude concrete expresses 21 MPa compressive strength, which is a practical strength within 3 days after mixing with water, and the crude steel mixed material is mixed at 5 to 20 parts by weight based on 100 parts by weight of cement, which usually forms concrete.
초조강 콘크리트는 물과 혼합 후, 1일 이내에 실용강도인 21MPa 압축강도를 발현하는 것으로, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 15~25 중량부로 혼합된다.The super rough steel concrete expresses 21 MPa compressive strength, which is a practical strength within 1 day after mixing with water, and the crude steel mixed material is mixed with 15 to 25 parts by weight based on 100 parts by weight of cement, which usually forms concrete.
초속경 콘크리트는, 물과 혼합 후, 3시간 이내에 실용강도인 21MPa 압축강도를 발현하는 것으로, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 25~40 중량부로 혼합된다.The superhard concrete expresses 21 MPa compressive strength, which is a practical strength within 3 hours after mixing with water, and the crude steel mixed material is mixed at 25 to 40 parts by weight based on 100 parts by weight of cement, which usually forms concrete.
상기 기포는, 기포제와 기포발생기, 발포제 중 어느 하나에 의해서 발생되며, 보통콘크리트 100 기준으로 20~40%가 되도록 혼입한다.The bubble is generated by any one of a foaming agent, a bubble generator, and a foaming agent, and is mixed so as to be 20 to 40% based on the normal concrete 100 basis.
상기 조강혼합재료를 보통콘크리트 내에 고루 분산시키도록 혼입된 다량의 기포가 그 역할을 수행한 이후에, 속경성 콘크리트의 강도와 슬럼프 측면에서 과다한 기포를 줄이도록 소포제를 첨가한다.After a large amount of bubbles incorporated to evenly disperse the crude steel mixture material in the concrete, the antifoaming agent is added to reduce the excessive bubbles in terms of strength and slump of fast-hard concrete.
상기 속경성 콘크리트 숏팅부(140)는, 상기 혼합콘크리트 형성부에 착탈가능하게 장착되면서 혼합콘크리트가 압축되어 배출되도록 내부가 관통된 양단부보다 중앙부의 직경이 작게 형성되는 숏팅안내부재(141)가 구비되고, 상기 숏팅안내부재(141)에 관통되어 숏팅안내부재(141)로 이동되는 혼합콘크리트에 포함된 기포를 소산시키면서 공기량을 감소시키도록 5기압 이상의 고압의 공기를 공급하는 공기공급공(142)을 포함하여 구비된다.The fast concrete shorting part 140 is provided with a shorting guide member 141, which is formed to be detachably mounted to the mixed concrete forming part and has a diameter smaller in the center than both ends thereof penetrated therein so that the mixed concrete is compressed and discharged. And an air supply hole 142 for supplying high pressure air of 5 atm or more to dissipate bubbles contained in the mixed concrete that is penetrated by the shorting guide member 141 and moved to the shorting guide member 141. It is provided including.
상기 공기공급공(142)은, 상기 숏팅안내부재(141) 외주면에 방사상으로 경사지게 관통된다.The air supply hole 142 is radially inclined to the outer circumferential surface of the shorting guide member 141.
다음은 상기와 같이 구성된 본 발명의 제조과정을 설명한다.The following describes the manufacturing process of the present invention configured as described above.
먼저, 도 3에 도시된 바와 같이, 배처플랜트(BP)에서 각각 공급되는 물, 시멘트, 골재 등을 일정비율로 배합 및 혼합하여 형성된 슬럼프 60mm 이상의 보통콘크리트는 레미콘 트럭(111)에 의해 시공현장으로 이송하고, 슬럼프 40mm 이하의 보통콘크리트는 덤프 트럭에 의해 시공현장으로 이송한다.First, as shown in Figure 3, the concrete concrete slump 60mm or more formed by mixing and mixing the water, cement, aggregate, and the like supplied from the batcher plant (BP) at a predetermined ratio to the construction site by the ready-mixed concrete truck 111 The ordinary concrete of 40mm or less of slump is transferred to the construction site by a dump truck.
또한, 도 4 내지 도 5에 도시된 바와 같이, 기포 및 조강혼합재료 투입부(120)로부터 알루미나계 초속경 클링커분말, 비정질알루미나계 초속경 클링커분말, 아윈계 초속경 클링커분말 중 적어도 어느 하나 또는 하나 이상 혼합하여 형성한 조강혼합재료와 물을 1:1 비율로 배합하여 슬러리를 생산하고, 생산된 슬러리와 기포제 및 기포발생기에서 생산된 기포를 혼합하여 기포슬러리를 형성한 후, 보통콘크리트에 투입하는데, 상기 기포슬러리는 조강혼합재료 1kg : 기포량 8~10ℓ를 배합하여 혼합하는 것이 바람직하나, 최종 속경성 콘크리트의 강도와 슬럼프를 고려하여 배합하는 것이 바람직하다.In addition, as shown in Figures 4 to 5, at least one of the alumina-based cemented carbide clinker powder, amorphous alumina-based cemented carbide clinker powder, Irwin-based cemented carbide clinker powder from the bubble and the crude steel mixed material input unit 120 or A slurry is produced by mixing the crude steel mixture material formed by mixing one or more with water in a ratio of 1: 1, and the slurry produced by mixing the bubbles produced by the foaming agent and the bubble generator to form a bubble slurry, and then put into ordinary concrete. However, the bubble slurry is preferably mixed by mixing 1 kg of crude steel mixture material: 8 to 10 L of air bubbles, but preferably considering the strength and slump of the final fast-hard concrete.
이때, 상기 기포제는 이미 배합된 보통콘크리트에 외부에서 만들어진 기포를 투입하는 방식으로, 보통 30~50배의 물로 희석하여 계면활성작용에 의해서 물리적으로 기포를 도입하는 혼화재로서 약 80까지의 공기량을 얻을 수 있으나, 본 발명에서 유효한 기포량은 속경성 콘크리트 전체 대비 20~40%의 공기가 함유되는 것이 바람직하며, 상기 기포는 구형에 가까운 형상을 지니면서 크기는 0.01~0.3mm 범위에 존재하는 미세한 기포가 바람직하다.At this time, the foaming agent is a method of injecting bubbles made from the outside into the ordinary concrete already blended, usually diluted with 30 to 50 times of water to obtain a volume of air up to about 80 as a mixed material to physically introduce bubbles by the surface active action However, the effective amount of bubbles in the present invention preferably contains 20 to 40% of the air compared to the entire fast-hard concrete, the bubble has a shape close to the spherical shape and the size of the fine bubbles present in the range 0.01 ~ 0.3mm Is preferred.
상기 기포는 발포제로 발생할 수 있으며, 이는 보통콘크리트에 추가 첨가하여 교반하고, 재혼합하는 과정에서 기포를 발생시키는 것으로, 믹서의 고속회전에 의해 형성되는데, 초기에는 큰 기포가 발생하지만 교반과정에서 잘게 부숴져 분포가 비교적 균일하나, 혼합시간에 따라 기포발생량에 큰 차이가 발생한다. 상기 발포제로는 알루미늄 분말이 있으며, 속경성 콘크리트 전체 대비 0.1`0.5% 사용되는 것이 바람직하다.The bubble may be generated as a blowing agent, which is usually added to concrete and stirred, and generates bubbles in the process of remixing, which is formed by the high speed rotation of the mixer. Although the distribution is relatively uniform, a large difference occurs in the amount of bubble generation depending on the mixing time. The foaming agent is aluminum powder, it is preferable to use 0.1`0.5% of the entire fast-hard concrete.
상기 기포와 조강혼합재료가 포함된 기포슬러리의 확대 사진이 도 6에 도시되었으며, 상기 기포슬러리에 포함된 기포(A)의 크기가 약 0.1~1mm로 형성되면서 기포들 사이에 조강혼합재료(S)가 골고루 산재하여 분포되어 있음을 알 수 있다.An enlarged photograph of the bubble slurry containing the bubble and the crude steel mixture material is shown in FIG. 6, and the size of the bubble A contained in the bubble slurry is about 0.1 to 1 mm while the crude steel mixture material (S) is formed between the bubbles. ) Are evenly distributed.
상기에서는 상기 기포와 슬러리를 혼합한 기포슬러리를 보통콘크리트에 투입하는 것으로 설명하였으나, 상기 보통콘크리트에 기포와 슬러리를 순차적으로 투입할 수도 있다.In the above description, the bubble slurry in which the bubbles and the slurry are mixed is added to ordinary concrete. However, the bubbles and the slurry may be sequentially added to the normal concrete.
또한, 상기 슬러리를 만들지 않고, 상기 보통콘크리트에 기포와 알루미나계 초속경 클링커분말, 비정질알루미나계 초속경 클링커분말, 아윈계 초속경 클링커분말 중 적어도 어느 하나 또는 하나 이상 혼합하여 형성한 조강혼합재료를 투입할 수 있다.In addition, without making the slurry, a crude steel mixture material formed by mixing at least one or at least one of air bubbles, alumina-based carbide tip clinker powder, amorphous alumina-based carbide tip clinker powder, and Awin-based carbide tip clinker powder without mixing the slurry. It can be put in.
여기서, 3일 이내에 21MPa 압축강도를 발현하는 조강 콘크리트는, 상기 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 조강혼합재료를 5~20 중량부 혼합하여 형성하고, 1일 이내에 21MPa 압축강도를 발현하는 초조강 콘크리트는, 상기 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 조강혼합재료를 15~25 중량부 혼합하여 형성하며, 3시간 이내에 21MPa 압축강도를 발현하는 초속경 콘크리트는 상기 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 조강혼합재료를 25~40 중량부 혼합하여 형성하는데, 이는 상기 범위보다 작을 경우, 고강도, 고내구성이 떨어지며, 상기 범위보다 클 경우, 고강도, 고내구성이 더 높게 나타나지 않으면서 시공원가가 상승하기 때문이다.Here, the crude steel concrete expressing 21 MPa compressive strength within 3 days is formed by mixing 5 to 20 parts by weight of the crude steel mixed material based on 100 parts by weight of the cement to form the ordinary concrete, expressing 21 MPa compressive strength within 1 day The super rough steel concrete is formed by mixing 15 to 25 parts by weight of the crude steel mixed material based on 100 parts by weight of the cement to form the ordinary concrete, and the superhard concrete expressing 21 MPa compressive strength within 3 hours forms the ordinary concrete. It is formed by mixing 25 to 40 parts by weight of the crude steel mixed material based on 100 parts by weight of cement, which is less than the above range, the high strength and high durability is lower, and when it is larger than the above range, the high strength and high durability is not shown higher This is because city parks rise.
상기의 과정으로 보통콘크리트에 기포 및 조강혼합재료 투입부(120)로부터 투입되는 기포 및 조강혼합재료 또는 보통콘크리트와 기포슬러리를 혼합콘크리트 형성부(130)에서 혼합하는데, 상기 보통콘크리트와 기포슬러리의 혼합비율은 보통콘크리트 1㎥ 당 기포슬러리 300~400ℓ로 혼합하여 혼합콘크리트에 기포량이 30~35% 포함되도록 한다.Bubble and crude steel mixed material or ordinary concrete and bubble slurry introduced from the bubble and the crude steel mixed material input unit 120 in the above-mentioned concrete mixing in the mixed concrete forming unit 130, of the normal concrete and bubble slurry The mixing ratio is usually mixed with 300 ~ 400ℓ of bubble slurry per 1㎥ of concrete so that 30 to 35% of the bubble content is contained in the mixed concrete.
상기 혼합콘크리트 형성부(130)는, 도 7 내지 도 8에 도시된 바와 같이, 레미콘 트럭(111) 내부에 형성된 축(131)이 모터의 동력으로 회전함과 동시에 상기 축(131)에 적어도 1단 이상 방사상으로 형성된 혼합부재(132)가 회전하면서 보통콘크리트와 기포슬러리 또는 기포 및 조강혼합재료 또는 발포제 및 조강혼합재료를 혼합하여 기포의 볼베어링 효과를 이용해 조강혼합재료가 보통콘크리트 내에 잘 분산된 혼합콘크리트를 형성하게 된다.As shown in FIGS. 7 to 8, the mixed concrete forming unit 130 may include at least one shaft 131 formed inside the ready-mixed concrete truck 111 at the same time as the shaft 131 rotates with the power of a motor. As the mixing member 132 formed radially or more rotates, the mixture of ordinary concrete and bubble slurry or bubble and crude steel mixture or foaming agent and crude mixture is mixed with the crude steel mixture material well dispersed in ordinary concrete by using the ball bearing effect of bubbles. To form concrete.
또한, 도 9에 도시된 바와 같이, 슬럼프 40mm 이하의 보통콘크리트를 덤프 트럭으로 이송하여 혼합콘크리트 형성부(130')의 호퍼(133)를 통해 이동안내부재(134)로 공급됨과 동시에 이동안내부재(134)로 공급된 보통콘크리트는 스크류(135)의 회전으로 이동안내부재(134)를 따라 이동하고, 상기 이동안내부재(134)를 따라 이동하는 보통콘크리트에 기포 및 조강혼합재료 투입부(120)로부터 기포 및 조강혼합재료를 투입하고, 스크류(135)의 회전으로 보통콘크리트와 조강혼합재료를 혼합한다.In addition, as shown in Figure 9, the slump 40mm or less of the concrete is transported to the dump truck is supplied to the movement guide member 134 through the hopper 133 of the mixed concrete forming unit 130 'and at the same time the movement guide member The normal concrete supplied to the 134 moves along the movement guide member 134 by the rotation of the screw 135, and bubbles and crude steel mixed material input unit 120 moves on the normal concrete moving along the movement guide member 134. ) And bubble and crude steel mixed material are added, and the ordinary concrete and the crude steel mixed material are mixed by the rotation of the screw 135.
이때, 상기 기포 및 조강혼합재료는 별도의 투입이 가능하나, 스크류(135)의 회전에 따른 기포 및 조강혼합재료와 보통콘크리트의 혼합시간이 짧으므로 보통콘크리트에 기포슬러리를 투입하는 것이 바람직하다.At this time, the bubble and the crude steel mixed material can be added separately, but since the mixing time of the bubble and the crude steel mixed material and the normal concrete according to the rotation of the screw 135 is short, it is preferable to add the bubble slurry to the normal concrete.
여기서, 상기 혼합콘크리트 형성부(130')는 상하교반식 믹서로, 입구측보다 출구측이 더 높도록 경사지게 형성되어 혼합부재(135)의 높이 차에 의해 기포슬러리 및 보통콘크리트가 용이하게 혼합되도록 한다.Here, the mixed concrete forming unit 130 ′ is a vertical stirring mixer, which is formed to be inclined so that the outlet side is higher than the inlet side so that bubble slurry and ordinary concrete are easily mixed by the height difference of the mixing member 135. do.
또한, 도 10은 보통콘크리트의 슬럼프를 나타낸 것으로, 보통콘크리트에 사용되는 물, 시멘트, 골재 등의 혼합비는 일반적으로 널리 사용되는 표준 배합비에 따른 것으로, 슬럼프가 0mm 상태를 보여주고 있으나, 도 11은 기포슬러리가 배합된 후의 보통콘크리트의 슬럼프가 대폭 커진 230mm 임을 보여주고 있다. 즉, 도 10은 기포슬러리가 배합하기 전의 보통콘크리트에 존재하는 공기량은 3% 이었으나, 도 11은 기포슬러리가 배합된 보통콘크리트에 존재하는 공기량은 26%로 공기량이 급격히 증가함을 알 수 있다.In addition, Figure 10 shows the slump of the normal concrete, the mixing ratio of water, cement, aggregate, etc. used for the normal concrete is generally in accordance with the standard compounding ratio widely used, showing a slump 0mm state, Figure 11 It shows that the slump of ordinary concrete after the bubble slurry is blended is 230 mm. That is, FIG. 10 shows that the amount of air present in the normal concrete before the bubble slurry is blended is 3%. However, FIG. 11 shows that the amount of air present in the normal concrete in which the bubble slurry is blended is 26%.
이렇게 다량 증가된 공기는 볼 베어링 효과에 의해 보통콘크리트 내에 조강혼합재료를 골고루 분산시킬 수 있으나, 다량의 공기가 포함된 혼합콘크리트의 경우, 혼합콘크리트의 강도와 내구성이 크게 저하되는데, 통상 보통콘크리트에 포함되는 공기량과 압축강도와의 관계에서 보통콘크리트 내에 1%의 공기량이 증가하는 경우, 압축강도는 약 4%가 감소된다. 즉, 상기와 같이 기포가 다량 혼합된 혼합콘크리트는 강도가 크게 저하되어 구조용 재료로 사용하기 어려울 뿐만 아니라 슬럼프가 크게 증가함으로 인하여 혼합콘크리트 타설에 따른 소요의 작업성 범위를 벗어나게 된다.This increased amount of air can evenly distribute the crude steel mixed material in the ordinary concrete by the ball bearing effect, but in the case of mixed concrete containing a large amount of air, the strength and durability of the mixed concrete is greatly reduced, usually in ordinary concrete When the amount of air of 1% in ordinary concrete increases in relation to the amount of air contained and the compressive strength, the compressive strength is reduced by about 4%. In other words, the mixed concrete in which a large amount of bubbles are mixed as described above is not only difficult to use as a structural material due to a significant decrease in strength, but also a large increase in slump, thereby leaving the range of workability required by mixing concrete.
따라서, 본 발명은, 도 12 내지 도 13에 도시된 바와 같이, 상기 혼합콘크리트 형성부(130)(130')에서 혼합된 혼합콘크리트에 포함된 다량의 공기를 감소시키기 위하여 혼합콘크리트에 소포제를 첨가하거나 속경성 콘크리트 숏팅부(140)로 숏팅을 실시하게 된다.Therefore, the present invention, as shown in Figure 12 to 13, to add a defoaming agent to the mixed concrete in order to reduce the amount of air contained in the mixed concrete mixed in the mixed concrete forming unit 130, 130 ' Or shortening is performed by the fast concrete shortening unit 140.
상기 소포제(Antifoam Agent)는, 상기 조강혼합재료를 보통콘크리트 내에 고루 분산시키도록 혼입된 기포를 제거하여 조절하는 목적으로 사용되는 기포의 발생을 억제하는 물질로써, 발생된 기포를 파괴하는 것을 파포(破泡)라 하고, 기포의 발생을 처음부터 억제하는 것을 억포(抑泡)라 하며, 본 발명에서는 이미 존재하는 과다한 기포를 제거할 목적으로 사용됨으로 파포제 할 수 있다. 상기 혼합콘크리트에 사용되는 소포제는 여러 종류가 있으며, 속경성 콘크리트 100 중량부 기준으로 0.1~2.0 중량부로 혼합되는 것이 바람직하다.The antifoam agent is a substance that suppresses the generation of air bubbles used for the purpose of removing and controlling air bubbles mixed so as to evenly disperse the crude steel mixture material in ordinary concrete. V), and suppressing the generation of bubbles from the beginning is called suppression, and in the present invention, it can be used as a defoamer for the purpose of removing the excessive bubbles already present. There are various types of antifoaming agents used in the mixed concrete, it is preferable to mix 0.1 to 2.0 parts by weight based on 100 parts by weight of fast-hard concrete.
상기 속경성 콘크리트 숏팅부(140)로 혼합콘크리트를 숏팅할 경우, 혼합콘크리트 형성부(130)의 레미콘 트럭(111)이나 혼합콘크리트 형성부(130')의 이동안내부재(134)에 착탈가능하게 장착된 숏팅안내부재(141)의 입구로 공급된다.When the mixed concrete is shorted by the fast concrete shorting part 140, the mixed concrete forming part 130 is detachably attached to the ready-mixed concrete truck 111 or the moving guide member 134 of the mixed concrete forming part 130 ′. It is supplied to the inlet of the installed shorting guide member 141.
여기서, 상기 숏팅안내부재(141)는 내부가 관통된 입,출구의 양단부보다 주앙부의 직경이 작게 형성되어 있으므로, 숏팅안내부재(141)로 공급되는 혼합콘크리트는 압축되면서 압력이 발생한다.Here, since the diameter of the central portion is smaller than both ends of the inlet and the outlet through which the shorting guide member 141 penetrates inside, the mixed concrete supplied to the shorting guide member 141 is compressed to generate pressure.
또한, 도 14에 도시된 바와 같이, 상기 숏팅안내부재(141)의 중앙부를 경유하여 중앙부의 직경보다 큰 출구로 혼합콘크리트가 통과함과 동시에 5기압 이상의 고압의 압축공기가 숏팅안내부재(141)의 외주면에 방사상으로 경사지게 형성된 공기공급공(142)으로 공급되면서 숏팅안내부재(141)의 출구로 와류되어 숏팅되는데, 상기 압축공기와 혼합콘크리트는 스프레이방식으로 펼쳐짐은 물론 압축공기와 혼합콘크리트가 서로 부딪히면서 혼합콘크리트에 포함된 다량의 기포가 소산되는 것이다.In addition, as shown in Figure 14, the mixed concrete passes through the central portion of the shorting guide member 141 to the outlet larger than the diameter of the central portion at the same time the compressed air of high pressure or more than 5 atm shorting guide member 141 While supplied to the air supply hole 142 is formed to be inclined radially on the outer peripheral surface of the shorting guide member 141 is vortexed by the outlet of the shorting, the compressed air and mixed concrete is spread by the spray method as well as the compressed air and mixed concrete While colliding, a large amount of bubbles contained in the mixed concrete is dissipated.
상기 기포가 소산되는 혼합콘크리트에 포함된 기포량은, 기포슬러리를 혼합하기 전의 보통콘크리트에 포함된 공기량의 범위에 근접할 뿐만 아니라 혼합콘크리트에 포함된 공기량을 3~7%로 줄이면서 원래의 슬럼프로 감소시켜 작업성, 고강도, 고내구성을 확보하는 속경성 콘크리트로 숏팅할 수 있는 것이다.The amount of bubbles contained in the mixed concrete in which the bubbles are dissipated is not only close to the range of the amount of air contained in the ordinary concrete before mixing the bubble slurry, but also reduces the amount of air contained in the mixed concrete to 3-7% while reducing the amount of air contained in the mixed concrete. It can be shortened to fast-hard concrete to ensure workability, high strength and high durability.
상기 속경성 콘크리트의 기초물성과 내구성을 KS 규정과 ASTM에 의거하여 측정하였으며, 이의 세부 개요는 표1과 같고, 도 16 내지 도 17과 같이 슬럼프 로스 시험은 5분 간격으로 측정하면서 측정 중이 아닐 경우, 지속적으로 혼합콘크리트의 교반을 실시하였고, 조강혼합재료와 기포가 혼입된 혼합콘크리트에 대한 슬럼프 로스 시험결과, 약 15~20 경과 후, 200mm 이하의 슬럼프 저하가 발생하며, 약 30~35분 경과 후, 대부분의 혼합콘크리트는 유동성을 잃는 것으로 나타남을 알 수 있다.The basic properties and durability of the fast-hard concrete were measured according to KS regulations and ASTM, and the detailed outline thereof is shown in Table 1, and as shown in FIGS. 16 to 17, the slump loss test was not performed while measuring at intervals of 5 minutes. , Continuous stirring of the mixed concrete, slump loss test results for the mixed concrete containing the crude steel mixed material and bubbles, after about 15 to 20, the slump drop of less than 200mm occurs, about 30 to 35 minutes Afterwards, it can be seen that most of the mixed concrete appears to lose fluidity.
표 1 기초물성 및 내구성 시험 세부 개요
시험 항목 시험 일정 및 몰드 시편크기 측정방법 수량
굳기전특성 슬럼프 로스 숏크리트 타설 전 - KS F 2402 5분간격
공기량 숏크리트 타설전·후 - KS F 2421KS F 2449 1회
응결시험 숏크리트 타설 전 KS F 2436 1회
강도특헝 압축강도 숏크리트 타설 후 Ø100*200(12hr, 1D, 3D7D, 28D) KS F 2405 15ea
휨강도 숏크리트 타설 후 100*100*460(12hr, 1D, 28D) KS F 2566 9ea
Table 1 Basic property and durability test detailed overview
Test Items Test Schedule and Mold Specimen Size How to measure Quantity
Properties before hardening Slump Ross Before shotcrete pouring - KS F 2402 5 minute intervals
Air volume Before and after shotcrete - KS F 2421 KS F 2449 1 time
Condensation test Before shotcrete pouring KS F 2436 1 time
Strength Compressive strength After shotcrete Ø100 * 200 (12hr, 1D, 3D7D, 28D) KS F 2405 15ea
Flexural strength After shotcrete 100 * 100 * 460 (12hr, 1D, 28D) KS F 2566 9ea
또한, 혼합콘크리트의 응결실험은, 그림 17 및 표 2와 같이, 혼합콘크리트에 대한 응결 실험 결과, RHA-20% 변수의 경우 초결 68분, 종결 98분으로 나타났으며, RHA -30% 변수의 경우 초결 59분, 종결 76분으로 나타났다. RHA-30%(AB) 변수의 경우, 기존 배합보다 응결 지연이 크게 증가함을 알 수 있다.In addition, the condensation experiment of mixed concrete, as shown in Figure 17 and Table 2, as a result of the condensation experiment on the mixed concrete, the RHA-20% variable was found to be the initial 68 minutes, the termination 98 minutes, the RHA -30% variable 59 minutes were concluded and 76 minutes were terminated. In the case of the RHA-30% (AB) variable, it can be seen that the settling delay is significantly increased compared to the conventional formulation.
표 2 변수별 응결시간
Type 응결 시간(분)
RHA-20% 초결 68
종결 98
RHA-30% 초결 59
종결 76
RHA-30%(AB) 초결 129
종결 158
보통콘크리트(OPC) 초결 282
종결 404
TABLE 2 Setting time by variable
Type congelation Minutes
RHA-20% First 68
closing 98
RHA-30% First 59
closing 76
RHA-30% (AB) First 129
closing 158
Ordinary Concrete (OPC) First 282
closing 404
또한, 혼합콘크리트의 압축강도는, 그림 18과 같이 RHA-30% 변수에서만 12시간 21MPa 이상을 만족하였고, 1일 이후 모든 변수에서 21MPa 이상을 만족함을 알 수 있고, 응결지연이 큰 RHA-30%(AB) 변수는 RHA-20%와 유사한 강도 특성을 보임을 알 수 있다.In addition, the compressive strength of mixed concrete, as shown in Fig. 18, satisfies more than 12 hours 21MPa only in the RHA-30% variable, and satisfies more than 21MPa in all the variables after 1 day, and RHA-30% having a large coagulation delay. The variable (AB) shows strength characteristics similar to those of RHA-20%.
본 발명에서 상기 실시 형태는 하나의 예시로서 본 발명이 여기에 한정되는 것은 아니다. 본 발명의 특허청구범위에 기재된 기술적 사상과 실질적으로 동일한 구성을 갖고 동일한 작용효과를 이루는 것은 어떠한 것이라도 본 발명의 기술적 범위에 포함된다 할 것이다.In the present invention, the above embodiment is only one example, and the present invention is not limited thereto. Anything that has substantially the same configuration as the technical idea described in the claims of the present invention and achieves the same effect will be included in the technical scope of the present invention.
특히, 본 발명은 상기 실시예에서 조강혼합재료로서 알루미나계 초속경클링커분말, 비정질알루미나계 초속경클링커분말, 아윈계 초속경클링커분말 등을 예로 들었지만, 이러한 조강혼합재료 이외에 속경성의 성질을 나타내고 경제성이 인정되는 다른 조강혼합재료에도 본 발명의 제조장치 및 제조방법이 적용될 수 있음은 물론이다.In particular, the present invention, although the alumina-based super-speed clinker powder, amorphous alumina-based super-speed clinker powder, and Awin-based super-speed clinker powder, etc. as an example of the crude steel mixture material in the above embodiment, but exhibits the properties of fast-hardening in addition to the crude steel mixture Of course, the manufacturing apparatus and the manufacturing method of the present invention can be applied to other crude steel mixture material that is economically recognized.

Claims (24)

  1. 물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성부와;A normal concrete forming unit which mixes water, cement, and aggregate at a predetermined ratio to form normal concrete;
    상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입부와;A bubble and crude mixed material input unit for adding bubbles and crude steel mixed material to the ordinary concrete to increase the slump of the ordinary concrete;
    상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료를 레미콘 트럭 내부에 형성된 축과 상기 축에 돌출된 혼합부재가 모터의 동력으로 회전하면서 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성부와;The mixed concrete is mixed with the ordinary concrete and the air bubbles and the crude steel mixed material is mixed with the common concrete and the air bubbles and the crude steel mixed material while the bubble formed in the concrete concrete and the shaft formed inside the ready-mixed truck and the mixing member projecting on the shaft rotates by the power of the motor. Mixed concrete forming unit to form a;
    상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅부를 포함하여 구성되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.When the mixed concrete is discharged, the fast concrete shorting portion for shortening the fast concrete to reduce the slump increased due to the bubble to the slump range of the ordinary concrete while blowing out the bubbles contained in the mixed concrete by blowing with high pressure air of 5 atm or more Fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the addition of air mixing and dissipation and crude steel mixture to the ordinary concrete, characterized in that the configuration.
  2. 물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성부와;A normal concrete forming unit which mixes water, cement, and aggregate at a predetermined ratio to form normal concrete;
    상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입부와;A bubble and crude mixed material input unit for adding bubbles and crude steel mixed material to the ordinary concrete to increase the slump of the ordinary concrete;
    상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료가 호퍼를 통해 이동안내부재로 공급됨과 동시에 스크류의 회전으로 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성부와;The mixed concrete forming unit for mixing the normal concrete, foam and the crude steel mixed material, which is put into the ordinary concrete, is supplied to the moving guide member through the hopper and simultaneously mixes the ordinary concrete and the foam and the crude steel mixed material by the rotation of the screw to form the mixed concrete. Wow;
    상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅부를 포함하여 구성되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.When the mixed concrete is discharged, the fast concrete shorting portion for shortening the fast concrete to reduce the slump increased due to the bubble to the slump range of the ordinary concrete while blowing out the bubbles contained in the mixed concrete by blowing with high pressure air of 5 atm or more Fast-hard concrete manufacturing apparatus for producing fast-hard concrete through the addition of air mixing and dissipation and crude steel mixture to the ordinary concrete, characterized in that the configuration.
  3. 청구항 1 또는 청구항 2에 있어서, 상기 기포 및 조강혼합재료 투입부는,The method of claim 1 or 2, wherein the bubble and the crude steel mixed material input unit,
    상기 기포와 슬러리를 순차적으로 투입하거나 상기 기포와 슬러리를 혼합한 기포슬러리를 투입하는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.Rapid-hard concrete production apparatus for manufacturing fast-hard concrete by adding air mixed and dissipated and crude steel mixed material to the normal concrete, characterized in that the bubble and slurry is added sequentially or the bubble slurry mixed with the bubble and slurry is added. .
  4. 청구항 3에 있어서, 상기 슬러리는,The method according to claim 3, wherein the slurry,
    상기 조강혼합재료와 물을 배합하여 생산되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.The fast-hard concrete manufacturing apparatus for manufacturing fast-hard concrete by mixing the air-mixed and dissipated and the crude steel mixed material to the ordinary concrete, characterized in that the crude steel mixed material and water are produced by mixing.
  5. 청구항 4에 있어서, 상기 조강혼합재료는,The method according to claim 4, wherein the crude steel mixture material,
    알루미나계 초속경 클링커분말, 비정질알루미나계 초속경 클링커분말, 아윈계 초속경 클링커분말 중 적어도 어느 하나 또는 하나 이상 혼합하여 형성하는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.Alumina-based cemented carbide clinker powder, amorphous alumina-based cemented carbide clinker powder, and Awin-based cemented carbide clinker powder are formed by mixing at least one or one or more of ordinary concrete through air incorporation and dissipation and addition of crude steel mixture materials. Fast hard concrete manufacturing apparatus for manufacturing fast hard concrete.
  6. 청구항 5에 있어서,The method according to claim 5,
    조강 콘크리트를 제조하기 위하여, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 5~20 중량부로 혼합되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.In order to manufacture the crude steel concrete, the crude steel mixture material is mixed in 5 to 20 parts by weight based on 100 parts by weight of the cement to form the concrete, the concrete properties through the air mixing and dissipation and the addition of the crude steel mixture material Fast hard concrete manufacturing apparatus for manufacturing concrete.
  7. 청구항 5에 있어서,The method according to claim 5,
    초조강 콘크리트를 제조하기 위하여, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 15~25 중량부로 혼합되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.In order to produce super-tough steel concrete, the crude steel mixture is usually mixed with 15 to 25 parts by weight based on 100 parts by weight of cement, which forms concrete, and the mixture is mixed with air and dissipated and added to the crude steel mixture. Fast hard concrete manufacturing apparatus for producing hard concrete.
  8. 청구항 5에 있어서,The method according to claim 5,
    초속경 콘크리트를 제조하기 위하여, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 25~40 중량부로 혼합되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.In order to produce superhard concrete, the crude steel mixture is usually 25 to 40 parts by weight based on 100 parts by weight of cement to form concrete, the air mixture and dissipation and the addition of the crude steel mixed material Fast hard concrete manufacturing apparatus for producing hard concrete.
  9. 청구항 3에 있어서, 상기 기포는,The method according to claim 3, wherein the bubble,
    기포제와 기포발생기, 발포제 중 어느 하나에 의해서 발생되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.Apparatus for producing fast-hard concrete by adding air mixed and dissipated and added crude steel mixed material to the ordinary concrete, characterized in that generated by any one of the foaming agent, bubble generator, foaming agent.
  10. 청구항 9에 있어서,The method according to claim 9,
    상기 기포제 및 발포제에 의해 과다 혼입된 공기를 줄이도록 소포제를 첨가하는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.A fast-hard concrete manufacturing apparatus for manufacturing fast-hard concrete through the mixing of air and the addition of dissipation and crude steel mixture to the ordinary concrete, characterized in that the antifoaming agent is added to reduce the air mixed with the foaming agent and the blowing agent.
  11. 청구항 1 또는 청구항 2에 있어서, 상기 속경성 콘크리트 숏팅부는,The method according to claim 1 or 2, wherein the fast concrete shorting portion,
    상기 혼합콘크리트 형성부에 착탈가능하게 장착되면서 혼합콘크리트가 압축되어 배출되도록 내부가 관통된 양단부보다 중앙부의 직경이 작게 형성되는 숏팅안내부재와;A shorting guide member which is detachably mounted to the mixed concrete forming part and has a diameter smaller in a center portion than both ends thereof penetrated inside so that the mixed concrete is compressed and discharged;
    상기 숏팅안내부재에 관통되어 숏팅안내부재로 이동되는 혼합콘크리트에 포함된 기포를 소산시키면서 공기량을 감소시키도록 5기압 이상의 고압의 공기를 공급하는 공기공급공을 포함하여 구비되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.Plain concrete, characterized in that it comprises an air supply hole for supplying a high-pressure air of 5 atm or more so as to reduce the amount of air while dissipating the bubbles contained in the mixed concrete that is passed through the shorting guide member to the shorting guide member Fast hard concrete manufacturing equipment for manufacturing fast hard concrete by mixing air and dissipating and adding crude steel mixture material.
  12. 청구항 11에 있어서,The method according to claim 11,
    상기 공기공급공은, 상기 숏팅안내부재의 외주면에 방사상으로 경사지게 관통되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조장치.The air supply hole, fast-hard concrete manufacturing apparatus for manufacturing fast-hard concrete through the air mixing and dissipation and the addition of crude steel mixture to the ordinary concrete, characterized in that penetrating radially to the outer peripheral surface of the shorting guide member.
  13. 물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성단계와;A normal concrete forming step of mixing water, cement, and aggregate at a predetermined ratio to form ordinary concrete;
    상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입단계와;Adding a bubble and a crude steel mixed material to the foamed concrete and the crude steel mixed material to increase the slump of the ordinary concrete;
    상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료를 레미콘 트럭 내부에 형성된 축과 상기 축에 돌출된 혼합부재가 모터의 동력으로 회전하면서 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성단계와;The mixed concrete is mixed with the ordinary concrete and the air bubbles and the crude steel mixed material is mixed with the common concrete and the air bubbles and the crude steel mixed material while the bubble formed in the concrete concrete and the shaft formed inside the ready-mixed truck and the mixing member projecting on the shaft rotates by the power of the motor. Mixed concrete forming step of forming;
    상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅단계를 포함하여 이루어지는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.When the mixed concrete is discharged, the fast concrete shortening step of shorting the fast concrete to reduce the slump increased due to the bubble to the slump range of the normal concrete while discharging the bubbles contained in the mixed concrete by blowing with high pressure air of 5 atm or more Method for producing fast-hard concrete to produce fast-hard concrete through the mixing of air and dissipation and crude steel mixture to ordinary concrete, characterized in that it comprises a.
  14. 물, 시멘트, 골재를 일정비율로 배합하여 보통콘크리트를 형성하는 보통콘크리트 형성단계와;A normal concrete forming step of mixing water, cement, and aggregate at a predetermined ratio to form ordinary concrete;
    상기 보통콘크리트에 기포와 조강혼합재료를 투입하여 보통콘크리트의 슬럼프를 증가시키도록 하는 기포 및 조강혼합재료 투입단계와;Adding a bubble and a crude steel mixed material to the foamed concrete and the crude steel mixed material to increase the slump of the ordinary concrete;
    상기 보통콘크리트, 상기 보통콘크리트에 투입되는 기포 및 조강혼합재료가 호퍼를 통해 이동안내부재로 공급됨과 동시에 스크류의 회전으로 보통콘크리트와 기포 및 조강혼합재료를 혼합하여 혼합콘크리트를 형성하는 혼합콘크리트 형성단계와;Mixed concrete forming step of forming the mixed concrete by mixing the ordinary concrete and the foam and the crude steel mixed material by the rotation of the screw at the same time the bubble and the crude steel mixed material that is put into the ordinary concrete, the ordinary concrete is supplied to the moving guide member through the hopper Wow;
    상기 혼합콘크리트가 배출될 때, 5기압 이상의 고압의 공기로 뿜어 혼합콘크리트에 포함된 기포를 소산시키면서 기포로 인해 증가한 슬럼프를 보통콘크리트의 슬럼프 범위로 감소시킨 속경성 콘크리트를 숏팅하는 속경성 콘크리트 숏팅단계를 포함하여 이루어지는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.When the mixed concrete is discharged, the fast concrete shortening step of shorting the fast concrete to reduce the slump increased due to the bubble to the slump range of the normal concrete while discharging the bubbles contained in the mixed concrete by blowing with high pressure air of 5 atm or more Method for producing fast-hard concrete to produce fast-hard concrete through the mixing of air and dissipation and crude steel mixture to ordinary concrete, characterized in that it comprises a.
  15. 청구항 13 또는 청구항 14에 있어서, 상기 기포 및 조강혼합재료 투입부는,The method according to claim 13 or 14, wherein the bubble and the crude steel mixed material input unit,
    상기 기포와 슬러리를 순차적으로 투입하거나 상기 기포와 슬러리를 혼합한 기포슬러리를 투입하는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.Method for producing fast-hard concrete to manufacture fast concrete by adding air mixed and dissipated and crude steel mixed material to the normal concrete, characterized in that the bubble and slurry is added sequentially or the bubble slurry mixed with the bubble and slurry is added. .
  16. 청구항 15에 있어서, 상기 슬러리는,The method according to claim 15, wherein the slurry,
    상기 조강혼합재료와 물을 배합하여 생산되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.Method for producing fast-hard concrete by mixing the crude steel mixed material and water to produce a fast-hard concrete through the mixing of air and dissipation and the crude steel mixed material to the ordinary concrete.
  17. 청구항 16에 있어서, 상기 조강혼합재료는,The method according to claim 16, wherein the crude steel mixture material,
    알루미나계 초속경 클링커분말, 비정질알루미나계 초속경 클링커분말, 아윈계 초속경 클링커분말 중 적어도 어느 하나 또는 하나 이상 혼합하여 형성하는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.Alumina-based cemented carbide clinker powder, amorphous alumina-based cemented carbide clinker powder, and Awin-based cemented carbide clinker powder are formed by mixing at least one or one or more of ordinary concrete through air incorporation and dissipation and addition of crude steel mixture materials. Method for producing fast concrete to produce fast concrete.
  18. 청구항 17에 있어서,The method according to claim 17,
    조강 콘크리트를 제조하기 위하여, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 5~20 중량부로 혼합되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.In order to manufacture the crude steel concrete, the crude steel mixture material is mixed in 5 to 20 parts by weight based on 100 parts by weight of the cement to form the concrete, the concrete properties through the air mixing and dissipation and the addition of the crude steel mixture material Fast hard concrete manufacturing method for manufacturing concrete.
  19. 청구항 17에 있어서,The method according to claim 17,
    초조강 콘크리트를 제조하기 위하여, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 15~25 중량부로 혼합되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.In order to produce super-tough steel concrete, the crude steel mixture is usually mixed with 15 to 25 parts by weight based on 100 parts by weight of cement, which forms concrete, and the mixture is mixed with air and dissipated and added to the crude steel mixture. Fast hard concrete manufacturing method for producing hard concrete.
  20. 청구항 17에 있어서,The method according to claim 17,
    초속경 콘크리트를 제조하기 위하여, 상기 조강혼합재료는 보통콘크리트를 형성하는 시멘트 100 중량부 기준으로 25~40 중량부로 혼합되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.In order to produce superhard concrete, the crude steel mixture is usually 25 to 40 parts by weight based on 100 parts by weight of cement to form concrete, the air mixture and dissipation and the addition of the crude steel mixed material Fast hard concrete manufacturing method for producing hard concrete.
  21. 청구항 3에 있어서, 상기 기포는,The method according to claim 3, wherein the bubble,
    기포제와 기포발생기, 발포제 중 어느 하나에 의해서 발생되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.A method of manufacturing fast-hard concrete using a foaming agent, a bubble generator, and a foaming agent to produce fast-hard concrete by mixing air, dissipating, and adding a crude steel mixture to the ordinary concrete.
  22. 청구항 21에 있어서,The method according to claim 21,
    상기 기포제 및 발포제에 의해 과다 혼입된 공기를 줄이도록 소포제를 첨가하는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.Method for producing fast-hard concrete to produce fast-hard concrete through the mixing of air and the addition of dissipation and crude steel mixture to the ordinary concrete, characterized in that the antifoaming agent is added to reduce the air mixed with the foaming agent and the blowing agent.
  23. 청구항 13 또는 청구항 14에 있어서, 상기 속경성 콘크리트 숏팅단계에서,The method according to claim 13 or 14, wherein in the fast concrete shorting step,
    상기 혼합콘크리트가 형성되는 혼합콘크리트 형성부에 착탈가능하게 장착되면서 혼합콘크리트가 압축되어 배출되도록 내부가 관통된 양단부보다 중앙부의 직경이 작게 형성되는 숏팅안내부재와;A shorting guide member detachably mounted to the mixed concrete forming unit on which the mixed concrete is formed, and having a central diameter smaller than both ends thereof penetrated inside so that the mixed concrete is compressed and discharged;
    상기 숏팅안내부재에 관통되어 숏팅안내부재로 이동되는 혼합콘크리트에 포함된 기포를 소산시키면서 공기량을 감소시키도록 5기압 이상의 고압의 공기를 공급하는 공기공급공을 포함하여 구비되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.Plain concrete, characterized in that it comprises an air supply hole for supplying a high-pressure air of 5 atm or more so as to reduce the amount of air while dissipating the bubbles contained in the mixed concrete that is passed through the shorting guide member to the shorting guide member Method for producing fast-hard concrete by mixing air with air, dissipating and adding crude steel mixture.
  24. 청구항 23에 있어서,The method according to claim 23,
    상기 공기공급공은, 상기 숏팅안내부재의 외주면에 방사상으로 경사지게 관통되는 것을 특징으로 하는 보통콘크리트에 공기 혼입과 소산 및 조강혼합재료 첨가를 통한 속경성 콘크리트를 제조하는 속경성 콘크리트 제조방법.The air supply hole, the fast-hard concrete manufacturing method for manufacturing fast-hard concrete through the air mixing and dissipation and the addition of the crude steel mixture to the ordinary concrete, characterized in that penetrating radially to the outer peripheral surface of the shorting guide member.
PCT/KR2014/011981 2013-12-10 2014-12-08 Apparatus for producing rapid-hardening concrete by intermixing and dissipating air in normal concrete and adding early-strength admixture thereto, and method for producing same WO2015088203A1 (en)

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CN201480075265.6A CN105992681B (en) 2013-12-10 2014-12-08 Based on normal concrete is carried out air be mixed into and eliminate strong mixing material addition early the fast hardening concrete producing device for making fast hardening concrete and its preparation method

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938786A (en) * 1972-12-04 1976-02-17 Jean Bernold Apparatus for wet spraying of concrete
KR20000055032A (en) * 1999-02-02 2000-09-05 정순착 System for manufacturing cellular concrete in field
KR20050087029A (en) * 2004-02-24 2005-08-31 (주) 지오시스 Cast-in-place rapid hardening aerated concrete having excellent adiabatic ability and method for manufacturing the same
JP2007145652A (en) * 2005-11-29 2007-06-14 Denki Kagaku Kogyo Kk Supper quick-hardening high-fluidity cement composition and mortar or concrete using the same
JP2007297250A (en) * 2006-05-02 2007-11-15 Denki Kagaku Kogyo Kk Ultrarapid hardening cement composition, ultrarapid hardening mortar composition and ultrarapid hardening grout mortar
KR101133569B1 (en) * 2009-09-30 2012-04-05 강상수 Composition of polymer mortar for spray apparatus and repair method of concrete structures using the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938786A (en) * 1972-12-04 1976-02-17 Jean Bernold Apparatus for wet spraying of concrete
KR20000055032A (en) * 1999-02-02 2000-09-05 정순착 System for manufacturing cellular concrete in field
KR20050087029A (en) * 2004-02-24 2005-08-31 (주) 지오시스 Cast-in-place rapid hardening aerated concrete having excellent adiabatic ability and method for manufacturing the same
JP2007145652A (en) * 2005-11-29 2007-06-14 Denki Kagaku Kogyo Kk Supper quick-hardening high-fluidity cement composition and mortar or concrete using the same
JP2007297250A (en) * 2006-05-02 2007-11-15 Denki Kagaku Kogyo Kk Ultrarapid hardening cement composition, ultrarapid hardening mortar composition and ultrarapid hardening grout mortar
KR101133569B1 (en) * 2009-09-30 2012-04-05 강상수 Composition of polymer mortar for spray apparatus and repair method of concrete structures using the same

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