CN110240446A - A kind of self-compacting lightweight aggregate machine-made sand concrete and preparation method thereof - Google Patents
A kind of self-compacting lightweight aggregate machine-made sand concrete and preparation method thereof Download PDFInfo
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- CN110240446A CN110240446A CN201910525473.6A CN201910525473A CN110240446A CN 110240446 A CN110240446 A CN 110240446A CN 201910525473 A CN201910525473 A CN 201910525473A CN 110240446 A CN110240446 A CN 110240446A
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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
- C04B28/04—Portland cements
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of self-compacting lightweight aggregate machine-made sand concretes, the parts by weight of each component are as follows: cement 260-330, flyash 140-160, miberal powder 30-40, silicon ash 20-40, Machine-made Sand 420-500, light weight sand 100-110, lightweight aggregate 360-400, water 150-160, water-reducing agent 6.8-8.3, slump retaining agent 0.45-2.8, air entraining agent 0.18-0.22, wherein, slump retaining agent isoamyl alcohol polyoxyethylene ether TPEG, acrylic acid and compound molecule amount regulator compound to obtain, air entraining agent is rosin soap air-entraining agent, with rosin, caustic soda, triethanolamine, lauryl sodium sulfate compounds to obtain, employment mechanism sand of the present invention substitutes natural sand, the concrete prepared by rerolling method, solves lightweight aggregate concrete aggregate It is easy floating, natural sand in short supply and lightweight aggregate machine-made sand concrete water demand rate height, easily isolates, the problem of aid pumpability difference.
Description
Technical field
The present invention relates to a kind of lightweight aggregate concrete, specifically provide a kind of self-compacting lightweight aggregate machine-made sand concrete and its
Preparation method.
Background technique
Concrete plays irreplaceable role in construction material, with people to the concrete material degree of awareness not
It is disconnected to go deep into, concrete technology constantly progress, on the basis of the requirement to concrete is not merely limited in intensity, coagulation
Soil material gradually moves towards multi-functional development.High-strength light, high performance concrete are increasingly becoming the emphasis of research.Lightweight aggregate coagulation
Soil is formulated by the lesser lightweight aggregate of apparent density with cementitious material appropriate, due to the characteristic of lightweight aggregate internal porous, one
Determine to mitigate the apparent density of aggregate in degree to achieve the purpose that reduce concrete density.Lightweight aggregate itself porosity for
The swelling stress that water freezing generates has certain remission effect, substantially increases lightweight aggregate concrete to a certain extent
Frost resistance；Light aggregate concrete interfacial transition zone is more closely knit compared to normal concrete interface simultaneously, so that light aggregate concrete
With excellent impermeability.As novel environment-friendlygreen green construction material, lightweight aggregate concrete has small density, good heat preservation performance, resists
Pinking is good, is suitable for high-rise and long span building.But lightweight aggregate concrete makes it to work due to the characteristic of its aglite
The requirement for making performance and stirring technique is very high, the generally existing bulk density of the lightweight aggregate concrete of prior art preparation is high, mixture and
Easy property is poor, aggregate floats, collapses and damages phenomena such as being not easy to pumping construction greatly.
Application No. is a kind of light bone containing zeolite powder and natural river sand is provided in the patent of invention of CN200910177544.4
Expect concrete and preparation method thereof, by the adjustment of zeolite powder and the mixture proportion of natural river sand, changes traditional Beater operator
Skill can effectively improve the performance of concrete, makes the mobility of mix and sticks that poly- property is good, and aggregate is non-rising, and bulk density is small, can be with
Realize pumping construction.But with the development of building trade, the exhaustion of natural sand river sand, sand material is insufficient, so as to cause
Sandstone price is high, greatly improves production cost.The invention exists simultaneously the lightweight aggregate concrete for the preparation of employment mechanism sand
No also to obtain the lightweight aggregate concrete that working performance is good, is easy to transport and pump, zeolite powder is blended as concrete mineral
Material is to have some improvement for the working performance of concrete, can overcome concrete through when bleeding, keep concrete glutinous
Degree increases, and gathers materials and wraps up in the raising of slurry amount.But zeolite powder activity is lower, will cause concrete strength reduction, while concrete mix
The slump, divergence are reduced.Application of the zeolite powder in concrete at present is still less, and relevant criterion also compares
The disadvantages of falling behind.Machine-made Sand raw material is sufficient, and urban architecture waste material and mill tailings also can be developed into Machine-made Sand raw material.Compared to
Natural sand river sand can preferably control construction quality using high-quality Machine-made Sand.Stable and cheap price is that Machine-made Sand is bigger
Advantage；Since Machine-made Sand has higher bottom powder content, the use bottom when preparing lightweight aggregate concrete compared to natural sand river sand
The higher Machine-made Sand of powder content can increase the cohesiveness of slurry, can solve lightweight aggregate concrete aggregate and is easy the problem of floating.But
Machine-made Sand disproportionately graded, surface are rougher, thus the lightweight aggregate machine-made sand concrete water demand rate of mixing is high, easily isolates, is pumpable
Property is poor.
Summary of the invention
The technical problem to be solved by the present invention is designing a kind of self-compacting lightweight aggregate machine-made sand concrete and its preparation side
Method.Employment mechanism sand substitutes natural sand, is easy floating, natural sand bone in short supply and light to solve lightweight aggregate concrete aggregate
Expect that machine-made sand concrete water demand rate is high, easily isolates, the problem of aid pumpability difference.
The technical scheme is that a kind of self-compacting lightweight aggregate machine-made sand concrete, the weight of the concrete each component
Part are as follows: cement 260-330, flyash 140-160, miberal powder 30-40, silicon ash 20-40, Machine-made Sand 420-500, light weight sand 100-
110, lightweight aggregate 360-400, water 150-160, water-reducing agent 6.8-8.3, slump retaining agent 0.45-2.8, air entraining agent 0.18-0.22.
Further, the cement is 42.5,28 days compression strength >=50MPa of ordinary portland cement P.O.
Further, the flyash belongs to II grade of ash, and 0.08mm negative pressure tails over≤10%, loss on ignition≤8.0%, water requirement
Than >=100%, bulk density >=0.50g/cm3, apparent density >=2.02g/cm3。
Further, the miberal powder is S95 miberal powder, and specific surface area is >=4000cm2/ g, activity >=95%, apparent density
≥2.8g/cm3。
Further, SiO in the silicon ash2Mass fraction >=90.2%, specific surface area >=25000m2/ kg, activity >=
115%.
Further, Machine-made Sand MB≤1.4, fineness modulus μf=2.5, the light weight sand is that the lightweight aggregate was crushed
Nominal particle diameter is 5mm sieve, takes sieve substrate to obtain, light weight sand fineness modulus μf=2.3.
Further, the lightweight aggregate is one of leca, lytag, haydites of book structure, bauxite haydite
Or several mixing, partial size 5-15mm, apparent density≤1300kg/m3, bulk density≤800kg/m3, cylindrical compress strength >=8.5
MPa, water absorption rate≤2.5%.
Further, the slump retaining agent is polycarboxylic acid slump retaining agent, and solid content >=20%, pH value 6.0-7.0, volume is glue
The 0.1-0.5% of gel material, polycarboxylic acid slump retaining agent isoamyl alcohol polyoxyethylene ether TPEG, acrylic acid and compound molecule amount
Regulator is compounded to obtain in 15~20:5~10:1~5 ratio.
Further, the air entraining agent is rosin soap air-entraining agent, and solid content >=23%, pH value 9.5-10.5, volume is
The 0.04-0.05% of cementitious material, the rosin soap air-entraining agent rosin, caustic soda, triethanolamine, lauryl sodium sulfate press than
The compounding of 1~5:1 of example~10:5~15:10~20 obtains.
A kind of preparation method of self-compacting lightweight aggregate machine-made sand concrete, includes the following steps:
Lightweight aggregate: being put into the water soaked in water and gone afterwards on sample for 24 hours in vessel by step 1, and natural air drying makes at its
In saturated dry surface；
Step 2: using configuring concrete in secondary batching method: i.e. first will by the load weighted Machine-made Sand of each component weight ratio,
Light weight sand, lightweight aggregate, silicon ash, 40% water pour into and stir 60s in blender, add cement, flyash, miberal powder and residue 60%
Water, water-reducing agent, slump retaining agent and air entraining agent be stirred 1-2min, obtain lightweight aggregate machine-made sand concrete.
The invention has the following beneficial effects: compared with the prior art,
1, the present invention acts on behalf of river sand with Machine-made Sand, since Machine-made Sand has higher bottom powder content compared to natural sand river sand,
The higher Machine-made Sand of powder content at the bottom of when preparing lightweight aggregate concrete can increase the cohesiveness of slurry, solve lightweight aggregate coagulation
Native aggregate is easy the problem of floating.Employment mechanism sand not only has very high economy simultaneously, solves the supply of river sand inadequate resource
Nervous problem；
2, polycarboxylic acids water-retaining agent is added in the present invention in mixture, is copolymerized, is being drawn by modified polyether and unsaturated carboxylic acid
Under conditions of entering anion surface active group, prepare poly- with the anion actives group such as carboxyl, hydroxyl, sulfonic group
Carboxylic acid water-retaining agent.The negative electrical charge of polycarboxylic acids water-retaining agent can be with the positive electricity on the powder granule surface in lightweight aggregate machine-made sand concrete
Lotus interaction, makes polycarboxylate water-reducer molecule firmly be adsorbed on powder granule surface, and powder granule surface is caused to form one
The surface of layer electric double layer, powder granule each in this way will have identical charge, since like charges are mutually exclusive, powder
Body particle will spread out, and the flocculent structure of powder granule is destroyed, and the Free water that the inside is wrapped up is released, from
And efficiently solving the problems, such as self-compacting lightweight aggregate machine-made sand concrete needs water high.The negative electrical charge master of the polycarboxylic acids water-retaining agent
If anion such as carboxyl, hydroxyl, sulfonic groups；
3, rosin soap air-entraining agent is added in the present invention in mixture, and it is two that rosin soap air-entraining agent, which is a kind of surfactant,
Affinity molecule, the amphiphile, amphiphilic molecule being dissolved in water can automatically form oriented attachment layer on interface and reduce the surface tension of water,
Substance of this kind forms skin covering of the surface by the method sprawled on the water surface, is a kind of orientation monolayer.The rosin that the present invention uses
The micro-bubble effective solution self-compacting lightweight aggregate machine-made sand concrete that soap air entraining agent generates closes object and easily isolates and pumpability
The problem of difference, at the same make maturing air vent aperture be largely focused on 500 μm hereinafter, compared to common its on the market
His type air entraining agent, the bubble that rosin soap air-entraining agent of the present invention generates is more tiny, be distributed it is more uniform, it is prepared
Self-compacting lightweight aggregate machine-made sand concrete also has more reasonable pore structure, pore morphology and distribution, to be obviously improved from close
The uniformity of real lightweight aggregate machine-made sand concrete aggregate.
4, using the method for secondary batching, since silicon ash specific surface area is very big, wrap silicon ash uniformly by secondary batching method
Be rolled in aggregate surface, it is easier to adsorb the gelling material particles such as cement, flyash, miberal powder, Machine-made Sand surface formed one layer compared with
Thick slurry shell, is enclosed in cement slurry in the gap between shell, can be effectively improved Machine-made Sand disproportionately graded, rough surface
The problems such as prepared lightweight aggregate machine-made sand concrete easily isolates, bleeding, while increasing the cohesive force between aggregate and cement slurry, have
Effect improves the problem of lightweight aggregate easily floats.
Specific embodiment
It is further below in conjunction with specific embodiment for the contents of the present invention, technical solution and advantage is more clearly understood
Illustrate the present invention, these embodiments are merely to illustrate the present invention, and the present invention is not limited only to following embodiment.
Embodiment 1-5, comparative example 1-2 match ratio are as follows:
Wherein:
Slump retaining agent is pressed with isoamyl alcohol polyoxyethylene ether TPEG, acrylic acid and compound molecule amount regulator in embodiment 1
The ratio of 15:5:2 compounds to obtain, air entraining agent rosin, caustic soda, triethanolamine, lauryl sodium sulfate 5:10:5 in proportion:
20 compoundings obtain；
Slump retaining agent isoamyl alcohol polyoxyethylene ether TPEG, acrylic acid and compound molecule amount regulator press 20 in embodiment 2:
The ratio of 10:5 compounds to obtain, air entraining agent rosin, caustic soda, triethanolamine, lauryl sodium sulfate 1:1:15:10 in proportion
Compounding obtains；
Slump retaining agent is pressed with isoamyl alcohol polyoxyethylene ether TPEG, acrylic acid and compound molecule amount regulator in embodiment 3
The ratio of 18:8:3 compounds to obtain, air entraining agent rosin, caustic soda, triethanolamine, lauryl sodium sulfate 3:6:10:15 in proportion
Compounding obtains；
Slump retaining agent and air entraining agent composition are same as Example 3 in embodiment 4-5, slump retaining agent and draw in comparative example 1-2
Gas agent composition is same as Example 3.
Embodiment 1-5 uses secondary batching method of the invention, and comparative example 1-2 uses a feeding method.
In the raw material that embodiment 1-5 and comparative example 1-2 is used, cement is ordinary portland cement P.O 42.5,
Density is 3.02-3.09g/m3, 28 days compression strength is 50.7MPa, and flexural strength is 5.8MPa within 3 days, and flexural strength is within 28 days
8.8MPa, presetting period 185min, final setting time 240min, flyash belong to II grade of ash, and 0.08mm negative pressure tails over≤
10%, loss on ignition 5.0-6.1%, water demand ratio 100-103%, bulk density 0.50-0.74g/cm3, apparent density
2.02-2.49g/cm3, miberal powder is S95 miberal powder, specific surface area 4000-4500cm2/ g, activity are 95-105%；Apparent density
2.8-2.9g/cm3.SiO in silicon ash2Mass fraction 90.20-91.25%, specific surface area >=25000m2/ kg, activity are
115-118%.Machine-made Sand MB≤1.4, fineness modulus μf=2.5, the light weight sand is that the lightweight aggregate was crushed nominal particle diameter and is
5mm sieve takes sieve substrate to obtain, fineness modulus μf=2.3.Lightweight aggregate is leca, lytag, haydites of book structure, aluminium alum
The mixing of one or more of native haydite, partial size 5-15mm, apparent density≤1300 kg/m3, bulk density 750-800kg/
m3, cylindrical compress strength >=8.5MPa, water absorption rate 2.5-3.0%.The slump retaining agent is polycarboxylic acid slump retaining agent, solid content >=20%, PH
Value 6.0-7.0, volume be cementitious material 0.1-0.5%, polycarboxylic acid slump retaining agent isoamyl alcohol polyoxyethylene ether TPEG,
Acrylic acid and compound molecule amount regulator compound to obtain, and air entraining agent is rosin soap air-entraining agent, solid content >=23%, and pH value is
9.5-10.5, volume are the 0.04-0.05% of cementitious material, rosin soap air-entraining agent rosin, caustic soda, triethanolamine, 12
Sodium alkyl sulfate compounds to obtain, and the water-reducing rate of the polycarboxylate water-reducer is 28~30%.The preparation method comprises the following steps: step 1: will be light
Aggregate is put into the water soaked in water and gone afterwards on sample for 24 hours in vessel, and natural air drying is at saturated dry surface；Step
Two: using configuring concrete in secondary batching method: i.e. first will be by the load weighted Machine-made Sand of each component weight ratio, light weight sand, light bone
Material, silicon ash, 40% water pour into and stir 60s in blender, add water, the diminishing of cement, flyash, miberal powder and residue 60%
Agent, slump retaining agent and air entraining agent are stirred 1-2min, obtain lightweight aggregate machine-made sand concrete.
Embodiment 1-5 and comparative example 1-2 obtains lightweight aggregate machine-made sand concrete, according to " normal concrete mix
Method for testing performance standard " GB/T 50080-2011 " standard for test methods of mechanical properties of ordinary concrete " GB/T 50081-
2011, the correlation standards such as JGJ51-2002 " lightweight aggregate concrete technology regulation " are tested, and related index is as follows:
As above-mentioned test result it is found that self-compacting lightweight aggregate machine-made sand concrete prepared by the present invention has good stream
Dynamic property, workability, pumpability, concrete mix does not isolate and bleeding, and the uniformity of mixture, durability are good, simultaneously
Little loss of slump, intensity is high, and bulk density is small, is easy to transport and pumping construction.It can by embodiment 3-4 and comparative example 1-2
Know, it is excellent using properties than the one time feeding method of self-compacting lightweight aggregate machine-made sand concrete prepared by secondary batching method
Different, the mechanical property of concrete is all satisfied construction requirement, and for the mixture slump up to 280mm, 28d compression strength is reachable
58.4MPa, concrete dry apparent density are 1650-1690kg/m3, reach lightweight aggregate concrete requirement.
Claims (10)
1. a kind of self-compacting lightweight aggregate machine-made sand concrete, it is characterised in that: the parts by weight of the concrete each component are as follows: cement
260-330, flyash 140-160, miberal powder 30-40, silicon ash 20-40, Machine-made Sand 420-500, light weight sand 100-110, lightweight aggregate
360-400, water 150-160, water-reducing agent 6.8-8.3, slump retaining agent 0.45-2.8, air entraining agent 0.18-0.22.
2. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that the cement is general
Logical 42.5,28 days compression strength >=50MPa of portland cement P.O.
3. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that the flyash category
II grade of ash, 0.08mm negative pressure tail over≤10%, loss on ignition≤8.0%, water demand ratio >=100%, bulk density >=0.50g/
cm3, apparent density >=2.02g/cm3。
4. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that the miberal powder is
S95 miberal powder, specific surface area are >=4000cm2/ g, activity >=95%, apparent density >=2.8g/cm3。
5. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that in the silicon ash
SiO2Mass fraction >=90.2%, specific surface area >=25000m2/ kg, activity >=115%.
6. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that the Machine-made Sand MB
≤ 1.4, fineness modulus μf=2.5, the light weight sand be the lightweight aggregate be crushed nominal particle diameter be 5mm sieve, take sieve substrate obtain,
Light weight sand fineness modulus μf=2.3.
7. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that the lightweight aggregate is
The mixing of one or more of leca, lytag, haydites of book structure, bauxite haydite, partial size 5-15mm are apparent close
Degree≤1300kg/m3, bulk density≤800kg/m3, cylindrical compress strength >=8.5MPa, water absorption rate≤2.5%.
8. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that the slump retaining agent is
Polycarboxylic acid slump retaining agent, solid content >=20%, pH value 6.0-7.0, volume are the 0.1-0.5% of cementitious material, which protects
Agent isoamyl alcohol polyoxyethylene ether of collapsing TPEG, acrylic acid and compound molecule amount regulator are by 15~20:5~10:1~5 ratio
Example compounding obtains.
9. a kind of self-compacting lightweight aggregate machine-made sand concrete described in accordance with the claim 1, which is characterized in that the air entraining agent is
Rosin soap air-entraining agent, solid content >=23%, pH value 9.5-10.5, volume are the 0.04-0.05% of cementitious material, the rosin soap
1~5:1~10:5~15:10~20 compound in proportion for air entraining agent rosin, caustic soda, triethanolamine, lauryl sodium sulfate
It arrives.
10. according to a kind of preparation method of self-compacting lightweight aggregate machine-made sand concrete described in claim 1-9, feature exists
In including the following steps:
Lightweight aggregate: being put into the water soaked in water and gone afterwards on sample for 24 hours in vessel by step 1, and natural air drying is at full
And surface dry condition；
Step 2: using configuring concrete in secondary batching method: i.e. first will be by the load weighted Machine-made Sand of each component weight ratio, light
Sand, lightweight aggregate, silicon ash, 40% water pour into and stir 60s in blender, add cement, flyash, miberal powder and residue 60%
Water, water-reducing agent, slump retaining agent and air entraining agent are stirred 1-2min, obtain lightweight aggregate machine-made sand concrete.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563413A (en) * | 2019-10-23 | 2019-12-13 | 中建西部建设贵州有限公司 | Low-grade machine-made sand concrete for downward pumping track and preparation method thereof |
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| CN110950565A (en) * | 2019-12-23 | 2020-04-03 | 深圳大学 | PH value triggered self-repairing aggregate and preparation method thereof |
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| CN113336489A (en) * | 2021-05-08 | 2021-09-03 | 西安科技大学 | Method for mixing proportion of machine-made sand self-compacting lightweight aggregate concrete |
| CN113354438A (en) * | 2021-05-25 | 2021-09-07 | 贵州涟江源建材有限公司 | Self-compacting lightweight aggregate concrete and preparation method thereof |
| CN114956712A (en) * | 2022-03-30 | 2022-08-30 | 陕西建工集团混凝土有限公司 | LC40 all-light pumping ceramsite concrete and preparation method thereof |
| CN115340340A (en) * | 2022-09-23 | 2022-11-15 | 中建西部建设西南有限公司 | Bio-based lightweight aggregate concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584139A (en) * | 2012-01-18 | 2012-07-18 | 中国铁道科学研究院金属及化学研究所 | Self-densifying concrete as well as preparation method and application thereof |
| CN103803904A (en) * | 2013-12-30 | 2014-05-21 | 北京新航建材集团有限公司 | Self-compacting light aggregate concrete and preparation method thereof |
| CN104402325A (en) * | 2014-10-28 | 2015-03-11 | 福建江夏学院 | High-strength self-compaction thermal-insulation concrete |
| CN107162499A (en) * | 2017-05-16 | 2017-09-15 | 南京工业大学 | A kind of high intensity self-compacting concrete and preparation method thereof |
| CN107265966A (en) * | 2017-05-10 | 2017-10-20 | 武汉理工大学 | One kind prepares bridge self-compaction cracking resistance clear-water concrete using high fine powder content Machine-made Sand |
-
2019
- 2019-06-18 CN CN201910525473.6A patent/CN110240446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584139A (en) * | 2012-01-18 | 2012-07-18 | 中国铁道科学研究院金属及化学研究所 | Self-densifying concrete as well as preparation method and application thereof |
| CN103803904A (en) * | 2013-12-30 | 2014-05-21 | 北京新航建材集团有限公司 | Self-compacting light aggregate concrete and preparation method thereof |
| CN104402325A (en) * | 2014-10-28 | 2015-03-11 | 福建江夏学院 | High-strength self-compaction thermal-insulation concrete |
| CN107265966A (en) * | 2017-05-10 | 2017-10-20 | 武汉理工大学 | One kind prepares bridge self-compaction cracking resistance clear-water concrete using high fine powder content Machine-made Sand |
| CN107162499A (en) * | 2017-05-16 | 2017-09-15 | 南京工业大学 | A kind of high intensity self-compacting concrete and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 张蓓: "《主体结构工程施工》", 31 March 2018, 北京理工大学出版社 * |
| 张金升: "《交通新材料》", 31 January 2014, 哈尔滨工业大学出版社 * |
| 耿加会等: "《商品混凝土生产与应用技》", 30 November 2015, 中国建材工业出版社 * |
| 阮承祥: "《混凝土外加剂及其工程应用》", 31 December 2008, 江西科学技术出版社 * |
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