CN105565746A - Aerated concrete slurry used for filling steel pipe in steel structure and preparation method thereof - Google Patents
Aerated concrete slurry used for filling steel pipe in steel structure and preparation method thereof Download PDFInfo
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- CN105565746A CN105565746A CN201510985306.1A CN201510985306A CN105565746A CN 105565746 A CN105565746 A CN 105565746A CN 201510985306 A CN201510985306 A CN 201510985306A CN 105565746 A CN105565746 A CN 105565746A
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- Prior art keywords
- steel pipe
- cement
- siccative
- slip
- filling
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Classifications
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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
- C04B28/06—Aluminous cements
-
- 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
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
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- Chemical & Material Sciences (AREA)
- 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 present invention discloses aerated concrete slurry used for filling a steel pipe in a steel structure, the aerated concrete slurry is made from a dry material and an auxiliary material, wherein the dry material comprises the following components by weight: 40 to 60% of Yellow river sand or fly ash, 20 to 50% of Portland cement, 2 to 10% of special cement, 2 to 10% of desulphurization gypsum and the balance of the waste, the waste is leftovers produced by cutting in the production process of autoclaved aerated concrete blocks, and the auxiliary material includes hydrogen peroxide, potassium permanganate, a foam stabilizer, a water reducing agent and polypropylene fiber. The aerated concrete slurry allows the steel pipe to have sufficient compressive strength, carrying capacity and better seismic, thermal insulation and other properties, and solves the problems of cold bridge phenomenon near the steel pipe due to temperature changes, and when the steel structure is subjected to a fire, a section temperature field of the steel structures can be unevenly distributed, so that fire-resistant and fire-proof properties of the steel structure can be increased.
Description
Technical field
The invention belongs to slip technical field for building, be specifically related to a kind of for gas concrete slip of filling steel pipe in steel construction and preparation method thereof.
Background technology
System of steel residential structure is the direction of housing industrialization development, will become after brick mix structure, skeleton construction, the new model of China's architecture construction.This technology is very ripe abroad, and developed country's steel construction covil construction application reaches gross building area more than 40%.China is still in the starting stage.For a long time, the housing structure of China is based on brick mix structure and skeleton construction.Traditional housing structure is from great, and meanwhile, because wall thickness, deck-molding, post greatly, and make space availability ratio low, standard width of a room in an old-style house depth is less, arranges dumb.Along with the great attention that the Chinese government reduces discharging the Residential Building Energy-Saving, the unique advantage that steel house embodies in building energy conservation because of it, becomes a new force of house market.Beam, the post insulation of system of steel residential structure are also the emphasis that people pay close attention to, and cold bridge generally results near steel pipe, affects housing layout and energy-saving efficiency, is steel structure system problem demanding prompt solution.
Summary of the invention
The object of the present invention is to provide a kind of for gas concrete slip of filling steel pipe in steel construction and preparation method thereof, make steel construction self have insulation, heat-proof quality to reach, and can reduce or avoid the generation of cold bridge phenomenon.
For achieving the above object, the present invention adopts following technical scheme:
A kind of gas concrete slip for filling steel pipe in steel construction, it is made up of siccative and auxiliary material, wherein, siccative is made up of the component of following weight per-cent: Yellow River Sand or flyash 40 ~ 60%, Portland cement 20 ~ 50%, special cement 2 ~ 10%, desulfurated plaster 2 ~ 10%, surplus is waste material, and described waste material is the tankage cutting generation in autoclave aerated concrete building block production process; Auxiliary material comprises hydrogen peroxide, potassium permanganate, suds-stabilizing agent, water reducer and polypropylene fibre: hydrogen peroxide is with H
2o
2meter, accounts for 0.18 ~ 0.29% of siccative weight; Potassium permanganate accounts for 0.015 ~ 0.02% of siccative weight; Suds-stabilizing agent accounts for 0.02 ~ 0.04% of siccative weight; High efficiency water reducing agent accounts for 0.1 ~ 0.2% of siccative weight; Polypropylene fibre accounts for 0.21 ~ 0.50% of siccative weight.
Concrete, described special cement comprises 32.5 and the quick hardening Portland cement of above label, quick hardening sulphoaluminate cement, low-alkalinity sulphoaluminate cement or hard iron aluminate cement etc. soon.Described polypropylene fibre length-to-diameter ratio is 40, length 8 ~ 19mm, tensile strength >=633MPa.
Concrete, described Yellow River Sand takes from Zhengzhou Yellow River section, its SiO
2content between 60 ~ 75%, organism not higher than 2.5%, silt content is higher than 2.0%.Described flyash is the waste after power plant burns coal, and belong to II grade of ash, 0.08mm tails over 15 ~ 25%.Described Portland cement is PO42.5 cement.Described desulfurated plaster is power plant desulfurization gypsum, SO
3content is about 41%.Described hydrogen peroxide mass concentration is preferably 30%, as foaming agent.Potassium permanganate is a kind of catalyzer, promotes that hydrogen peroxide is got angry reaction.Described suds-stabilizing agent by volume ratio be the oleic acid of 1:3:40, trolamine and water at normal temperatures mixed preparing obtain, in order to reduce bubble surface tension force, reinforce bubble chamber film physical strength, ensure that cast is stable.Described water reducer is polycarboxylate water-reducer, water-reducing rate >=25%, and density is 1.41 ± 0.02g/ml, admittedly containing 97 ± 2%.Polypropylene fibre is because of its outstanding tensile strength, and what in gas concrete, have brute force draws attached effect, can significantly improve the specific tenacity of gas concrete.
Can be the shape such as circular or square for filling steel pipe in steel construction.
The preparation method of the above-mentioned gas concrete slip for filling steel pipe in steel construction, it comprises the following steps:
1) Yellow River Sand of water ratio less than 5% is milled to 0.08mm square hole sieve to tail over and be not more than 10%;
2) flyash or honed Yellow River Sand and desulfurated plaster, waste material are added to the water stirring 1 ~ 2min, become slip; Then in slip, add Portland cement, special cement, potassium permanganate, suds-stabilizing agent, water reducer, polypropylene fibre stir 30 ~ 50s, control slurry diffusibleness in 27 ~ 39cm, temperature at 38 ~ 50 DEG C, finally add hydrogen peroxide and stir 6 ~ 12s and pourable.
Concrete slurry of the present invention can make steel pipe have enough ultimate compression strength, bearing capacity and better antidetonation, insulation, the performance such as heat insulation, solve the problem that temperature variation causes occurring near steel pipe cold bridge phenomenon, the cross-section temperature field of steel construction can be made when suffering fire to be able to uneven distribution, to increase fire-resistant, the fire line of steel construction; Obtained steel construction can be made to have lower own wt than skeleton construction, thus convenience lift, transport, makes construction process easier.
Compared to the prior art, the advantage of grouting material of the present invention is:
Compare the gas concrete that aluminium powder is got angry, pour into a mould more stable, shaping very soon after cast, without bad phenomenon, intensity is higher, and cement usage quantity is little, less demanding to care environments, is applicable to engineering construction.04 grade, 05 grade, 06 grade, 07 grade gas concrete slip can be prepared into according to different ratio and process system.
Embodiment
Do to introduce in detail further to technical scheme of the present invention below in conjunction with embodiment, but protection scope of the present invention is not limited thereto.
In following each embodiment, Yellow River Sand takes from Zhengzhou Yellow River section, its SiO
2content between 60 ~ 75%, organism not higher than 2.5%, silt content is higher than 2.0%.Flyash is the waste after power plant burns coal, and belong to II grade of ash, 0.08mm tails over 15 ~ 25%.Portland cement is PO42.5 cement.Desulfurated plaster is power plant desulfurization gypsum, SO
3content is about 41%.Described hydrogen peroxide mass concentration is 30%.Suds-stabilizing agent by volume ratio be the oleic acid of 1:3:40, trolamine and water at normal temperatures mixed preparing obtain.Water reducer is polycarboxylate water-reducer, water-reducing rate >=25%, and density is 1.41 ± 0.02g/ml, admittedly containing 97 ± 2%.Polypropylene fibre length-to-diameter ratio is 40, length 8 ~ 19mm, tensile strength >=633MPa.
In embodiment 1, special cement is the fast hard iron aluminate cement of 32.5 and above label, and in embodiment 2, special cement is the low-alkalinity sulphoaluminate cement of 32.5 and above label, and in embodiment 3, special cement is the quick hardening sulphoaluminate cement of 32.5 and above label.
embodiment 1
A kind of gas concrete slip for filling steel pipe in steel construction, it is made up of siccative and auxiliary material, wherein, siccative is made up of the component of following weight per-cent: Yellow River Sand 60%, Portland cement 25%, special cement 5%, desulfurated plaster 5%, waste material 5%, described waste material is the tankage cutting generation in autoclave aerated concrete building block production process; Auxiliary material comprises 30% hydrogen peroxide, potassium permanganate, suds-stabilizing agent, water reducer and polypropylene fibre: 30% hydrogen peroxide accounts for 0.60% of siccative weight; Potassium permanganate accounts for 0.015% of siccative weight; Suds-stabilizing agent accounts for 0.03% of siccative weight; Water reducer accounts for 0.1% of siccative weight; Polypropylene fibre accounts for 0.25% of siccative weight.
The preparation method of the above-mentioned gas concrete slip for filling steel pipe in steel construction, it comprises the following steps:
(1) Yellow River Sand of water ratio less than 5% is milled to 0.08mm square hole sieve to tail over and be not more than 10%;
(2) honed Yellow River Sand and desulfurated plaster, waste material are added to the water stirring 1 minute, become slip; Then in slip, Portland cement, special cement, potassium permanganate, suds-stabilizing agent, water reducer, polypropylene fibre is added, stir 40s, control slurry diffusibleness at about 35cm (ratio of water to material 0.386), temperature, at 38 ~ 50 DEG C, finally adds hydrogen peroxide and stirs 6s and pourable.The duration of pouring is 2 ~ 7min.
Prepare gas concrete slip according to the above ratio, by 5 pour point position cast, in 5min by slip casting in the rectangular steel pipe of 22000mm × 200mm × 200mm, after leaving standstill 10min, slip is naturally got angry and is full of whole steel pipe, and after slip sclerosis, 7d ultimate compression strength is about 1.5MPa, without bad phenomenon such as sinking, contractions, bond well with steel pipe tube wall.
embodiment 2
A kind of gas concrete slip for filling steel pipe in steel construction, it is made up of siccative and auxiliary material, wherein, siccative is made up of the component of following weight per-cent: Yellow River Sand 55%, Portland cement 25%, special cement 5%, desulfurated plaster 5%, waste material 10%, described waste material is the tankage cutting generation in autoclave aerated concrete building block production process; Auxiliary material comprises 30% hydrogen peroxide, potassium permanganate, suds-stabilizing agent, water reducer and polypropylene fibre: 30% hydrogen peroxide accounts for 0.75% of siccative weight; Potassium permanganate accounts for 0.015% of siccative weight; Suds-stabilizing agent accounts for 0.03% of siccative weight; Water reducer accounts for 0.1% of siccative weight; Polypropylene fibre accounts for 0.35% of siccative weight.
The preparation method of the above-mentioned gas concrete slip for filling steel pipe in steel construction with reference to embodiment 1, wherein, step 2) in control slurry diffusibleness be 30, ratio of water to material is 0.362.
Prepare gas concrete slip according to the above ratio, by 3 pour point position cast, in 4min by slip casting in the rectangular steel pipe of 16000mm × 200mm × 200mm, after leaving standstill 10min, slip is naturally got angry and is full of whole steel pipe, and after slip sclerosis, 7d ultimate compression strength is about 1.5MPa, without bad phenomenon such as sinking, contractions, bond well with steel pipe tube wall.
embodiment 3
For filling a gas concrete slip for steel pipe in steel construction, it is made up of siccative and auxiliary material, and wherein, siccative is made up of the component of following weight per-cent: flyash 55%, Portland cement 34%, special cement 6%, desulfurated plaster 5%; Auxiliary material comprises 30% hydrogen peroxide, potassium permanganate, suds-stabilizing agent, water reducer and polypropylene fibre: 30% hydrogen peroxide accounts for 0.96% of siccative weight; Potassium permanganate accounts for 0.02% of siccative weight; Suds-stabilizing agent accounts for 0.02% of siccative weight; Water reducer accounts for 0.2% of siccative weight; Polypropylene fibre accounts for 0.48% of siccative weight.
The preparation method of the above-mentioned gas concrete slip for filling steel pipe in steel construction with reference to embodiment 1, wherein, step 2) in control slurry diffusibleness be 34, ratio of water to material is 0.35.
Prepare gas concrete slip according to the above ratio, by 3 pour point position cast, in 4min by slip casting in the rectangular steel pipe of 14000mm × 200mm × 200mm, after leaving standstill 10min, slip is naturally got angry and is full of whole steel pipe, and after slip sclerosis, 7d ultimate compression strength is about 1.7MPa, without bad phenomenon such as sinking, contractions, bond well with steel pipe tube wall.
Schematically described for the gas concrete slip and fill method thereof of filling steel pipe in steel construction the present invention by example above, this description is not restricted.Those skilled in the art will be understood that, in actual applications, in order to be suitable for certain needs, in above-described embodiment, the content of each component all can obtain other selection within the scope of it, and other staff also may make same or analogous technical scheme under enlightenment of the present invention.Special needs to be pointed out is, only otherwise depart from aim of the present invention, all apparent changes, are all included within protection scope of the present invention.
Claims (4)
1. one kind for filling the gas concrete slip of steel pipe in steel construction, it is characterized in that, be made up of siccative and auxiliary material, wherein, siccative is made up of the component of following weight per-cent: Yellow River Sand or flyash 40 ~ 60%, Portland cement 20 ~ 50%, special cement 2 ~ 10%, desulfurated plaster 2 ~ 10%, surplus is waste material, and described waste material is the tankage cutting generation in autoclave aerated concrete building block production process; Auxiliary material comprises hydrogen peroxide, potassium permanganate, suds-stabilizing agent, water reducer and polypropylene fibre: hydrogen peroxide is with H
2o
2meter, accounts for 0.18 ~ 0.29% of siccative weight; Potassium permanganate accounts for 0.015 ~ 0.02% of siccative weight; Suds-stabilizing agent accounts for 0.02 ~ 0.04% of siccative weight; High efficiency water reducing agent accounts for 0.1 ~ 0.2% of siccative weight; Polypropylene fibre accounts for 0.21 ~ 0.50% of siccative weight.
2. according to claim 1 for filling the gas concrete slip of steel pipe in steel construction, it is characterized in that, described special cement comprises 32.5 and the quick hardening Portland cement of above label, quick hardening sulphoaluminate cement, low-alkalinity sulphoaluminate cement or fast hard iron aluminate cement; Described polypropylene fibre length-to-diameter ratio is 40, length 8 ~ 19mm.
3. according to claim 1 for filling the gas concrete slip of steel pipe in steel construction, it is characterized in that, steel pipe is circular or square.
4., as claimed in claim 1 for filling a preparation method for the gas concrete slip of steel pipe in steel construction, it is characterized in that, comprise the following steps:
1) Yellow River Sand of water ratio less than 5% is milled to 0.08mm square hole sieve to tail over and be not more than 10%;
2) flyash or honed Yellow River Sand and desulfurated plaster, waste material are added to the water stirring 1 ~ 2min, become slip; Then in slip, add Portland cement, special cement, potassium permanganate, suds-stabilizing agent, water reducer, polypropylene fibre stir 30 ~ 50s, control slurry diffusibleness at 27 ~ 39cm, finally add hydrogen peroxide and stir 6 ~ 12s and pourable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985306.1A CN105565746A (en) | 2015-12-25 | 2015-12-25 | Aerated concrete slurry used for filling steel pipe in steel structure and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985306.1A CN105565746A (en) | 2015-12-25 | 2015-12-25 | Aerated concrete slurry used for filling steel pipe in steel structure and preparation method thereof |
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| CN105565746A true CN105565746A (en) | 2016-05-11 |
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| CN201510985306.1A Pending CN105565746A (en) | 2015-12-25 | 2015-12-25 | Aerated concrete slurry used for filling steel pipe in steel structure and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815103A (en) * | 2021-09-30 | 2021-12-21 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Method for producing concrete member and concrete member |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013066561A1 (en) * | 2011-10-31 | 2013-05-10 | Boral Industries Inc. | Inorganic polymer compositions subjected to vibrations |
| CN103641393A (en) * | 2013-11-14 | 2014-03-19 | 河南兴安新型建筑材料有限公司 | Steam-press air-entrainment concrete self-heat conserving building block by using sand of Yellow River and preparation method |
| CN104230294A (en) * | 2014-09-13 | 2014-12-24 | 长沙海弘建材有限公司 | Gypsum-based masonry mortar and preparation method thereof |
-
2015
- 2015-12-25 CN CN201510985306.1A patent/CN105565746A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013066561A1 (en) * | 2011-10-31 | 2013-05-10 | Boral Industries Inc. | Inorganic polymer compositions subjected to vibrations |
| CN103641393A (en) * | 2013-11-14 | 2014-03-19 | 河南兴安新型建筑材料有限公司 | Steam-press air-entrainment concrete self-heat conserving building block by using sand of Yellow River and preparation method |
| CN104230294A (en) * | 2014-09-13 | 2014-12-24 | 长沙海弘建材有限公司 | Gypsum-based masonry mortar and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 左铁镛等: "《循环型社会材料循环与环境影响评价》", 31 August 2008 * |
| 樊峻: "高性能低密度加气混凝土的研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815103A (en) * | 2021-09-30 | 2021-12-21 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Method for producing concrete member and concrete member |
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Application publication date: 20160511 |
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