CN104163610B - A kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare - Google Patents

A kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare Download PDF

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CN104163610B
CN104163610B CN201410394775.1A CN201410394775A CN104163610B CN 104163610 B CN104163610 B CN 104163610B CN 201410394775 A CN201410394775 A CN 201410394775A CN 104163610 B CN104163610 B CN 104163610B
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sand
aerated concrete
air entrapment
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entrapment agent
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CN104163610A (en
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陈剑锋
陈浩
李娜
江波
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Fuzhou University
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Fuzhou University
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Abstract

The invention provides a kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare, for main raw material with cement, lime and sand, mix a small amount of foaming agent, conditioning agent and air entrapment agent, through hydration reaction, pour into mould, form base, excision forming, steam press maintenance in advance, go out still processing, the autoclave aerated concrete building block goods made.These goods dry density < 698kg/m 3, ultimate compression strength > 7.59MPa, pore mean diameter < 0.45mm, qualification rate > 95%, higher than the requirement of the B07 level autoclave aerated concrete building block premium grads that national standard is formulated, it is the single materials for wall that can meet China cold district more than 65% power conservation requirement.By adding a small amount of saponins concrete air-entrainer, production process ratio of water to material, unit aluminium powder gas forming amount and pouring stability can be significantly improved, and the volume of goods, intensity and quality.The present invention is novel, abundant raw material, technique are simple, with low cost, environmental protection and energy saving, be convenient to implement, have larger generalization <b>.</b>

Description

A kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare
Technical field
The present invention is a kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare, and relates to the Green Chemistry preparation of gas concrete, belongs to novel environmental friendliness fine chemistry industry material and environment protecting and power-saving building materials field.
Background technology
Development of new materials for wall is the Strategic Demand promoting China's economic society Sustainable Healthy Development and build environmental country.Gas concrete is a kind of new green environment protection energy-saving material, refer to calcareous material and siliceous material as main raw material, mix foaming agent, through hydration reaction, casting, precuring is cut, the porousness novel wall material that the techniques such as steam press maintenance are formed, that one can realize resource, environment, the environment-friendly energy-saving building materials of performance and cost best of breed, it is the unique a kind of single materials for wall that can meet cold district more than 65% power conservation requirement in the world today, during Ye Shi China " 12 " and in the following long term, the green building material new variety that country widelys popularize.
Production process of gas concrete generally includes starting material preparation, batching, cast, quietly to stop, cuts, steam press maintenance and go out the operations such as still processing, its key is that casting process slurry will be stablized, does not occur mould phenomenon of collapsing, there is not shrinkage phenomenon in the quiet process base substrate that stops, the building block product after steam press maintenance wants that unit weight is low, masonry strength utilization coefficient is large, have light porous feature.
At present, production process of gas concrete ubiquity slurry water material proportioning is low, pouring stability is poor, very easily occur that slurry collapses mould and base substrate shrinkage phenomenon, and building block product ubiquity qualification rate is low, unit weight is high, ultimate compression strength is low, pore is large and uneven, the problem such as pore amount is few, thermal conductivity is high, fire endurance is short, poor durability.
Summary of the invention
The object of the present invention is to provide a kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare, by mixing a small amount of air entrapment agent in batching, slurry ratio of water to material and pouring stability, the concrete durability of production process can be significantly improved, the high qualification rate of building block product, low unit weight, high compressive strength and masonry strength utilization coefficient can be ensured, the light porous characteristic of air-entrained concrete building block can be fully demonstrated, can be Resources for construction saving type and environment protection ecological type society provides fine chemistry industry material and new green environment protection energy-saving wall material.
For achieving the above object, the present invention adopts following technical scheme:
A kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare, in total siccative, the weight percent of each raw material is: cement 12.5 ~ 14.5%, lime 12.5 ~ 14.5%, fine sand 70 ~ 71%, foaming agent are in aluminium 0.043 ~ 0.046%, conditioning agent 2.5 ~ 2.7%, air entrapment agent in saponin 0.010 ~ 0.012%, and the weight percent sum of each raw material is 100%; The weight ratio 0.62 ~ 0.66 of mixing water and total siccative.
After the mixing of above-mentioned starting material, through hydration reaction, pour into mould, form base, excision forming, steam press maintenance in advance, go out still processing, obtained B07 level steam pressure sand aerated concrete block.
Goods dry density < 698kg/m 3, ultimate compression strength > 7.59MPa, pore mean diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear ultimate compression strength rate of loss < 18%, dry state thermal conductivity < 0.17W/ (mK), qualification rate > 95%, higher than the requirement of the B07 level autoclave aerated concrete building block premium grads that national standard is formulated.
Described foaming agent is one or more in metallic aluminium, zinc, the pulvis of magnesium or paste, preferentially selects water-soluble aluminium powder cream.Described conditioning agent is gypsum.Described air entrapment agent is saponins concrete air-entrainer.Described fine sand is one or more in extra large sand, river sand, river sand, Machine-made Sand, Weathered Sand.
The each raw-material Main Function of the present invention is as follows: the effect of aluminium powder is to provide enough gas forming amounts, ensure full mould and output, reduction goods unit weight; The effect of cement is regulate base substrate setting rate and improve product strength; The effect of lime is to regulate slurry bodying velocity, promote that aluminium powder is got angry and improves product strength; The effect of fine sand is to provide skeleton and SiO 2, make goods obtain intensity; The effect of gypsum is to regulate cement setting time and prevent false set, regulation and control pouring stability, raising blank strength; The effect of saponins air entrapment agent is the utilization ratio removing aluminium powder cream surface stearic acid protective material, promote that aluminium powder cream is got angry, surely steep, regulate and control slurry pouring stability, improve qualification rate, improve aluminium powder and lime; The effect of mixing water is to provide the utilization ratio of enough hydration reaction substrate, raising aluminium powder and lime.
The key that the present invention can significantly improve casting aerated concrete stability is, by adding a small amount of saponins air entrapment agent, to come the setting rate of production control process slurry, bodying velocity and raising rate and match, and does not occur that slurry collapses mould and base substrate shrinkage phenomenon.
The key that the present invention significantly can reduce building block product unit weight and aperture is that production process provides enough basicity and moisture, ensure effective gas forming amount of aluminium powder, the bubble discharged evenly being diffused in slurry and forming microvoid structure, also improving unit aluminium powder gas forming amount by adding a small amount of saponins air entrapment agent.
The key that the present invention improves building block product intensity is the siliceous and calcareous material that production process will provide enough, makes to generate hydrated calcium silicate and aquation calcium aluminosilicate crystallizable mineral further under steam press maintenance condition, intensity after raising goods.
Beneficial effect of the present invention is:
1, compared with normal concrete, aerated concrete products of the present invention have light porous, masonry strength utilization coefficient is large, weather resistance is strong, value of creeping under action of long-term load is little, thermal and insulating performance is excellent, absorb sound the advantages such as soundproof effect is good, fire and heat endurance is good, quakeproof and quake-resistant excellent property, hydrophobic impermeability is good, workability is strong, raw material sources are extensive, production efficiency is high, production energy consumption is low, be the following green building material new variety that country widelys popularize, country can be met and to carry out the process of urbanization construction and the needs of economical and environment-friendly social construction.
2, in order to overcome existing gas concrete production technology defect, the present invention is by mixing a small amount of saponins air entrapment agent in batching, just can make hardening of cement speed, lime bodying velocity mates more with aluminium powder raising rate, improve slurry pouring stability, not easily occur collapse mould and shrinkage phenomenon, the qualification rate of gas concrete is high, lightweight, porous, high strength more, has beyond thought substantial advance.Compared with comparative example, ratio of water to material and the unit aluminium powder gas forming amount of casting process improve 14.8 ~ 22.2% and 5.9 ~ 13.2% respectively, and the volume of resulting product and ultimate compression strength improve 5.2 ~ 6.2% and 12.4 ~ 13.3% respectively, unit weight decreases 5.2 ~ 6.3%.
3, compared with existing gas concrete production formula, the present invention with the addition of the saponins concrete air-entrainer (being called for short: saponins air entrapment agent) (application publication number CN103466984A) with independent intellectual property right in formula.This saponins air entrapment agent extracts from the plant containing saponin(e such as oil tea, Seed of Chinese Soapberry, Chinese honey locust, wooden peanut, Wood of Shinyleaf Yellowhorn, and its main functional component is saponin.Saponin by sapogeninium(i), saccharide ligand and organic acid three part form, containing hydrophilic and lipophilic group, be a class Triterpenoids sapogenins saponins mixture, close and distant equilibrium value HLB is up to 16, very well water-soluble.
4, the present invention adds saponins air entrapment agent and can bring following remarkable advantage in formula:
(1) the saponins air entrapment agent that the present invention adopts also is a kind of nonionic surface active agent simultaneously, its hydrophilic radical is made up of the oxy radical of strong electronegativity, its lipophilic group is made up of nonpolar hydrocarbon ring key, aluminium powder cream can be made more soluble in alkaline medium, gas forming amount is larger, and aluminium powder cream utilization ratio is larger.
(2) saponins air entrapment agent of the present invention can be adsorbed onto the protectant aluminum particle surface of stearic acid, by absorption, infiltration, infiltration, rolling off effect, stearic acid is got off from aluminium powder sur-face peeling, makes aluminium powder surface comparatively fast out exposed, get angry sooner.
(3) saponins air entrapment agent of the present invention is dissolved in gas concrete slurry, can form unit molecule arrangement, the surface tension of bubble is reduced at liquid-gas interface; Because the molecular weight of saponin is large, the aquation thickness of formation, foam stabilizing effect is good, and saponin molecule can cover bubble surface, makes air bubble intensity larger, more not easily expands and break, make base substrate pore less evenly, finer and close, more easily form non-interconnected hole.
5, compared with existing process for producing aerated concrete, the present invention only with the addition of a small amount of saponins air entrapment agent in formula, just can increase substantially the ratio of water to material of production process, and the raising of ratio of water to material can bring following remarkable advantage:
(1) in the basic conditions, aluminium powder reaction formula of getting angry is 2Al+3Ca (OH) 2+ 6H 2o → 3CaOAl 2o 36H 2o+3H 2↑, after ratio of water to material improves, more water will be had to participate in aluminium powder and to get angry generation hydrogen, till aluminium powder is depleted, like this, aluminium powder is got angry more complete, can significantly improve aluminium powder utilization ratio and goods output, reduces goods unit weight and production cost.
(2) lime digestion reaction formula is CaO+H 2o → Ca (OH) 2+ Ca 2++ OH -, lime digestion can produce a large amount of Ca (OH) 2, Ca 2+and OH -, after ratio of water to material improves, more water will be had to participate in lime digestion, make lime digestion more completely, reaction is more deep, slurry teeming temperature, lime utilization ratio and product strength can be significantly improved, can obviously reduce production of articles cost; Simultaneously, under slurry bodying velocity higher strip part, water more than needed is also had to regulate denseness and the divergence of slurry, ensure that the aluminium powder hydrogen produced of getting angry easily is diffused into each corner of slurry, form more micro-bubble and be more evenly distributed, goods porosity can be significantly improved, reduce pore opening.
(3) lime digestion process can produce a large amount of Ca (OH) 2, Ca (OH) 2 ca 2++ 2OH -, after ratio of water to material raising, have more water to can be used for dissolving Ca (OH) 2, in slurry, pH value is higher, is more conducive to the Al of aluminium powder cream 2o 3oxide film is dissolved by alkali lye, Al 2o 3+ 2OH -→ 2AlO 2 -+ H 2o, makes that aluminium powder surface is comparatively fast exposed out, sooner gets angry, and follow-up aluminium powder is got angry more completely, efficiency of getting angry is higher; Meanwhile, under being more conducive to steam press maintenance condition, there is more Ca (OH) 2and Ca 2+with material SiO 2and Al 2o 3have an effect, generate hydrated calcium silicate and aquation aluminum silica gel calcium in Hydrothermal Synthesis mode, the development of intensity after common promotion goods.
Embodiment
Add a B07 level steam pressure sand aerated concrete block prepared by saponins air entrapment agent, each raw material weight per-cent in total siccative: cement 12.5 ~ 14.5%, lime 12.5 ~ 14.5%, fine sand 70 ~ 71%, foaming agent in aluminium 0.043 ~ 0.046%, conditioning agent 2.5 ~ 2.7%, air entrapment agent in saponin 0.010 ~ 0.012%; Mixing water and total siccative ratio (ratio of water to material) 0.62 ~ 0.66.After the mixing of above-mentioned starting material, through hydration reaction, pour into mould, form base, excision forming, steam press maintenance in advance, go out still processing, obtained B07 level steam pressure sand aerated concrete block.Building block dry density < 698kg/m 3, ultimate compression strength > 7.59MPa, pore mean diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear ultimate compression strength rate of loss < 18%, dry state thermal conductivity < 0.17W/ (mK), qualification rate > 95%.
Described foaming agent is one or more in metallic aluminium, zinc, the pulvis of magnesium or paste, preferentially selects water-soluble aluminium powder cream.Described conditioning agent is gypsum.Described air entrapment agent is saponins concrete air-entrainer, and extract from the plant containing saponin(e such as oil tea, Seed of Chinese Soapberry, Chinese honey locust, wooden peanut, Wood of Shinyleaf Yellowhorn, its main functional component is saponin.Described fine sand is one or more in extra large sand, river sand, river sand, Machine-made Sand, Weathered Sand.
When mould internal volume is 3.24m 3time, feed composition and formula thereof are: cement 280 ~ 320kg, lime 280 ~ 320kg, fine sand 1590 ~ 1600kg, gypsum 56 ~ 58kg, water-soluble aluminium powder cream in aluminium 0.98 ~ 1.03kg, saponins air entrapment agent in saponin 0.23 ~ 0.26kg, mixing water 1400 ~ 1490kg.
Mix Design is carried out with reference to " concrete admixture " (GB8076-2008) specification and " normal concrete design discipline " (JGJ55-2011).
The quality of aerated concrete products and measured performance parameter carry out with reference to " autoclave aerated concrete building block " (GB11968-2006) and " steam-pressing aero-concrete method for testing performance " (GB11969-2008).The saponin content of air entrapment agent adopts vanillin food grade,1000.000000ine mesh-vitriol oil colorimetric determination (application publication number CN103466984A).
Divergence is the parameter characterizing fluidity of slurry, adopts cylinder mould assay method.By the cylinder mould of internal diameter 50mm, height 100mm, be placed in the cleaned glass plate center of horizontal positioned, after filling slurry, at the uniform velocity vertically mention cylinder mould, after slurry curtain coating is stable, measure the expansion diameter of slurry two orthogonal directions, its mean value is exactly slurry divergence.
The mix-design of various embodiments of the present invention and comparative example is in table 1, and the Specifeca tion speeification of each goods gathers in table 2.
Mix-design (the mould internal volume 3.24m of each embodiment of table 1 and comparative example 3)
The goods Specifeca tion speeification of each embodiment of table 2 and comparative example
embodiment 1
Fill a prescription by table 1, quantitatively take each raw material, first in cast pond, squeeze into Machine-made Sand and Weathered Sand mixture 1600kg, gypsum 58kg and surface water 1010kg, stir evenly and form sand cream slurry, squeeze into lime 322kg, cement 281kg and surplus mixing water again, stir evenly the some time, control slurry temperature, during temperature>=38 DEG C, flow the suspension that adding water soluble aluminium powder cream (in aluminium 0.98kg) and air entrapment agent aqua (in saponin 0.26kg) are formed again, stir some time control slurry divergence, during divergence>=33cm, it is 3.24m that slurry injects internal volume 3mould, after casting complete, mould moves on to and quietly stops the room maintenance some time, base substrate meet solidify requirement after, shift out and quietly stop room, vacate mould by after commercial specification excision forming, base substrate moves on to the autoclave High Temperature Curing some time, makes acceleration generate hydrated minerals, promotes the rear strength development of base substrate, rest in warehouse 7 days after goods go out still, make B07 level autoclave aerated concrete building block.
After testing, casting process ratio of water to material reach 0.66, unit aluminium powder gas forming amount 0.927m 3/ kg, quiet stop maintenance after base substrate volume reach 3.24m 3, resulting product dry density 698kg/m 3, ultimate compression strength 7.59MPa, pore mean diameter < 0.40mm, drying shrinkage value < 0.45mm/m, freeze rear mass loss rate < 4.5%, freeze rear ultimate compression strength rate of loss < 18%, dry state thermal conductivity < 0.17W/(mK), qualification rate > 95%, higher than the requirement of the B07 level autoclave aerated concrete building block premium grads that national standard is formulated.
embodiment 2
Fill a prescription by table 1, quantitatively take each raw material, first in cast pond, squeeze into river sand 1597kg, gypsum 57kg and river 1010kg, stir evenly and form sand cream slurry, then squeeze into lime 301kg, cement 299kg and surplus mixing water, stir evenly the some time, control slurry temperature, during temperature>=38 DEG C, more directly pour aluminium powder 1.01kg and air entrapment agent pulvis (in saponin 0.24kg) into, stir some time control slurry divergence, during divergence>=33cm, it is 3.24m that slurry injects internal volume 3mould, after casting complete, mould moves on to and quietly stops the room maintenance some time, base substrate meet solidify requirement after, shift out and quietly stop room, vacate mould by after commercial specification excision forming, base substrate moves on to the autoclave High Temperature Curing some time, makes acceleration generate hydrated minerals, promotes the rear strength development of base substrate, rest in warehouse 7 days after goods go out still, make B07 level autoclave aerated concrete building block.
After testing, casting process ratio of water to material reach 0.64, unit aluminium powder gas forming amount 0.979m 3/ kg, base substrate volume reaches 3.27m 3, resulting product dry density 690kg/m 3, ultimate compression strength 7.636MPa, pore mean diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear ultimate compression strength rate of loss < 18%, dry state thermal conductivity < 0.17W/(mK), qualification rate > 95%.
embodiment 3
Fill a prescription by table 1, quantitatively take each raw material, first in cast pond, squeeze into extra large sand 1593kg, gypsum 56kg and seawater 1010kg, stir evenly and form sand cream slurry, squeeze into lime 283kg, cement 319kg and surplus mixing water again, stir evenly the some time, control slurry temperature, during temperature>=38 DEG C, flow the suspension that adding water soluble aluminium powder cream (in aluminium 1.03kg), air entrapment agent pulvis (in saponin 0.23kg) and water 1.8kg are formed again, stir some time control slurry divergence, during divergence>=33cm, it is 3.24m that slurry injects internal volume 3mould, after casting complete, mould moves on to and quietly stops the room maintenance some time, base substrate meet solidify requirement after, shift out and quietly stop room, vacate mould by after commercial specification excision forming, base substrate moves on to the autoclave High Temperature Curing some time, makes acceleration generate hydrated minerals, promotes the rear strength development of base substrate, rest in warehouse 7 days after goods go out still, make B07 level autoclave aerated concrete building block.
After testing, casting process ratio of water to material reach 0.62, unit aluminium powder gas forming amount 0.989m 3/ kg, base substrate volume reaches 3.25m 3, resulting product dry density 693kg/m 3, ultimate compression strength 7.65MPa, pore mean diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear ultimate compression strength rate of loss < 18%, dry state thermal conductivity < 0.17W/(mK), qualification rate > 95%., compared with comparative example, improve 13.06%.Compared with comparative example, ratio of water to material and the unit aluminium powder gas forming amount of casting process improve 14.8% and 13.2% respectively, and the volume of resulting product and ultimate compression strength improve 5.7% and 13.3% respectively, unit weight decreases 5.8%.These goods are new green environment protection building materials, can be applicable to processing and the construction of the bearing wall of buildings, wallboard and roof boarding, are the single materials for walls that can meet China cold district more than 65% power conservation requirement.
comparative example
Fill a prescription by table 1, quantitatively take each raw material, first in cast pond, squeeze into river sand 1601kg, gypsum 60kg and river 1010kg, stir evenly and form sand cream slurry, then squeeze into lime 303kg, cement 302kg and surplus mixing water, stir evenly the some time, control slurry temperature, during temperature>=38 DEG C, more directly pour aluminium powder 1.16kg into, stir some time control slurry divergence, during divergence>=33cm, it is 3.24m that slurry injects internal volume 3mould, after casting complete, mould moves on to and quietly stops the room maintenance some time, base substrate meet solidify requirement after, shift out and quietly stop room, vacate mould by after commercial specification excision forming, base substrate moves on to the autoclave High Temperature Curing some time, makes acceleration generate hydrated minerals, promotes the rear strength development of base substrate, rest in warehouse 7 days after goods go out still, make B07 level autoclave aerated concrete building block.
After testing, with under embodiment 2 same recipe condition, when not adding saponins air entrapment agent, casting process ratio of water to material is maximum can only reach 0.54, exceedes this limit and there will be the mould that collapses, under optimum process state, and unit aluminium powder gas forming amount 0.875m 3/ kg, base substrate volume reaches 3.08m 3, still cannot expire mould, resulting product dry density 736kg/m 3, ultimate compression strength 6.35MPa, pore mean diameter > 0.5mm, drying shrinkage value > 0.5mm/m, freeze rear mass loss rate > 5%, freeze rear ultimate compression strength rate of loss > 20%, dry state thermal conductivity > 0.18W/(mK), visual appearance qualification rate < 94%, qualification rate < 95%., the requirement of the B07 level autoclave aerated concrete building block salable product formulated that can only be up to state standards.
Above embodiment is intended to citing further and describes the present invention, instead of limits the present invention by any way.All equalizations done according to patent claim of the present invention change and modify, or are directly or indirectly used in other correlative technology field, are all in like manner included in scope of patent protection of the present invention.

Claims (5)

1. the B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare, it is characterized in that: in total siccative, the weight percent of each raw material is: cement 12.5 ~ 14.5%, lime 12.5 ~ 14.5%, fine sand 70 ~ 71%, foaming agent are in aluminium 0.043 ~ 0.046%, conditioning agent 2.5 ~ 2.7%, air entrapment agent in saponin 0.010 ~ 0.012%, and the weight percent sum of each raw material is 100%; The weight ratio 0.62 ~ 0.66 of mixing water and total siccative; Described conditioning agent is gypsum.
2. the B07 level steam pressure sand aerated concrete block prepared of interpolation saponins air entrapment agent according to claim 1, is characterized in that: dry density < 698kg/m 3, ultimate compression strength > 7.59MPa, pore mean diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear ultimate compression strength rate of loss < 18%, dry state thermal conductivity < 0.17Wm -1k -1, job efficiency > 95%, higher than the requirement of B07 level autoclave aerated concrete building block premium grads that national standard is formulated.
3. the B07 level steam pressure sand aerated concrete block prepared of interpolation saponins air entrapment agent according to claim 1, is characterized in that: described foaming agent is water-soluble aluminium powder cream.
4. the B07 level steam pressure sand aerated concrete block prepared of interpolation saponins air entrapment agent according to claim 1, is characterized in that: described fine sand is one or more in extra large sand, river sand, river sand, Machine-made Sand, Weathered Sand.
5. the B07 level steam pressure sand aerated concrete block prepared of interpolation saponins air entrapment agent according to claim 1, is characterized in that: the processing and the construction that are applied to the bearing wall of buildings, wallboard and roof boarding as green structural material.
CN201410394775.1A 2014-08-13 2014-08-13 A kind of B07 level steam pressure sand aerated concrete block adding saponins air entrapment agent and prepare Active CN104163610B (en)

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Publication number Priority date Publication date Assignee Title
CN101456704A (en) * 2008-12-31 2009-06-17 华南理工大学 Method for producing silicate product by using molybdenum tailings and hydrothermal method
CN101608484A (en) * 2009-07-20 2009-12-23 贵州源隆新型环保墙体建材有限公司 A kind of phosphorous slag autoclave aerated concrete building block and preparation method thereof
CN102344273A (en) * 2010-08-04 2012-02-08 汤建新 Preparation method of anti-shrinkage autoclaved aerated concrete block dry powder masonry mortar
CN103466984A (en) * 2013-09-02 2013-12-25 福州大学 Sasanqua saponin concrete air entraining agent and preparation method thereof
CN103664073A (en) * 2013-11-14 2014-03-26 河南兴安新型建筑材料有限公司 Autoclaved aerated concrete block prepared by use of yellow river sands and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101456704A (en) * 2008-12-31 2009-06-17 华南理工大学 Method for producing silicate product by using molybdenum tailings and hydrothermal method
CN101608484A (en) * 2009-07-20 2009-12-23 贵州源隆新型环保墙体建材有限公司 A kind of phosphorous slag autoclave aerated concrete building block and preparation method thereof
CN102344273A (en) * 2010-08-04 2012-02-08 汤建新 Preparation method of anti-shrinkage autoclaved aerated concrete block dry powder masonry mortar
CN103466984A (en) * 2013-09-02 2013-12-25 福州大学 Sasanqua saponin concrete air entraining agent and preparation method thereof
CN103664073A (en) * 2013-11-14 2014-03-26 河南兴安新型建筑材料有限公司 Autoclaved aerated concrete block prepared by use of yellow river sands and preparation method thereof

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