CN104130008B - Mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent - Google Patents

Mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent Download PDF

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CN104130008B
CN104130008B CN201410394773.2A CN201410394773A CN104130008B CN 104130008 B CN104130008 B CN 104130008B CN 201410394773 A CN201410394773 A CN 201410394773A CN 104130008 B CN104130008 B CN 104130008B
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air entraining
entraining agent
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saponins
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CN104130008A (en
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陈剑锋
陈浩
李娜
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Fuzhou University
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Abstract

The invention provides and a kind of mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, it is with calcareous and siliceous material for primary raw material, mix a small amount of foaming agent, regulator and air entraining agent, through hydration reaction, pour into mould, in advance form base, excision forming, steam press maintenance, go out still processing, the steam-pressing aero-concrete made.This product dry density < 795 kg/m3, comprcssive strength > 10.09 MPa, pore average diameter < 0.45 mm, dry state heat conductivity < 0.19 W m-1·K-1, qualification rate > 95%, higher than the requirement of bearing type autoclave aerated concrete building block high-class product that national standard is formulated, be the single materials for wall that can meet China's cold district more than 65% power conservation requirement.By mixing a small amount of saponins air entraining agent, it is remarkably improved production process ratio of water to material, unit aluminium powder gas forming amount and pouring stability and the volume of goods, intensity and quality.Present inventive concept novelty, abundant raw material, technique are simple, with low cost, environmental protection and energy saving, convenient to carry out, have bigger generalization.

Description

Mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent
Technical field
The present invention a kind of mixes bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, and prepared by the Green Chemistry relating to air entrained concrete, belong to novel environmental close friend's fine chemistry industry material and environment protecting and power-saving building materials field.
Background technology
Development of new materials for wall is to promote China's economic society Sustainable Healthy Development and build the Strategic Demand of environmental country.Air entrained concrete is a kind of new green environment protection energy-saving material, refer to calcareous material and siliceous material for primary raw material, mix foaming agent, through hydration reaction, moulding by casting, precuring is cut, the porous novel wall material that the techniques such as steam press maintenance are formed, it is that one can realize resource, environment, the environment-friendly energy-saving building materials of performance and cost best of breed, it 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, in Ye Shi China " 12 " period and following long term, the green building material new varieties that country widelys popularize.
Production process of gas concrete generally include raw material prepare, dispensing, cast, quiet stop, cut, steam press maintenance and go out the operations such as still processing, it it is critical only that casting process slurry to be stablized, to occur without mould phenomenon of collapsing, the quiet process base substrate that stops occurs without shrinkage phenomenon, and the building block product after steam press maintenance wants that unit weight is low, masonry strength usage factor big, have light porous feature.
At present, production process of gas concrete ubiquity slurry water material match ratio is low, pouring stability is poor, slurry very easily occur collapses mould and base substrate shrinkage phenomenon, and building block product ubiquity qualification rate is low, unit weight is high, comprcssive strength is low, pore is big and the problem such as uneven, pore amount is few, heat conductivity is high, fire endurance is short, poor durability.
Summary of the invention
It is an object of the invention to provide and a kind of mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, by dispensing is mixed a small amount of air entraining agent, 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 usage factor can be ensured, the light porous characteristic of air-entrained concrete building block can be fully demonstrated, fine chemistry industry material and new green environment protection energy-saving wall material can be provided for Resources for construction economizing type and environment protection ecological type society.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, in total siccative, the percentage by weight of each raw material is: calcareous material 24~26%, siliceous material 71~72%, foaming agent are in aluminum 0.035~0.036%, regulator 2.45~2.60%, air entraining agent in Saponin 0.008~0.010%, and the percentage by weight sum of each raw material is 100%;The weight ratio 0.55~0.57 of mixing water and total siccative.By above-mentioned raw material mix after, through hydration reaction, pour into mould, in advance form base, excision forming, steam press maintenance, go out still processing, obtain mixing bearing type steam-pressing aero-concrete materials for wall building block product prepared by saponins air entraining agent.These goods dry density < 795kg/m3, comprcssive strength > 10.09MPa, pore average diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear comprcssive strength loss rate < 18%, dry state heat conductivity < 0.19W/ (m K), qualification rate > 95%, higher than the requirement of the bearing type autoclave aerated concrete building block high-class product that national standard is formulated.
Described foaming agent is one or more in metallic aluminium, zinc, the powder of magnesium or unguentum, preferential selects water solublity aluminium powder cream.Described regulator is Gypsum Fibrosum.Described air entraining agent is saponins concrete air-entrainer.Described calcareous material is cement and Calx.Described siliceous material is fine sand, including one or more in sea sand, river sand, fluvial 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 in that to provide enough gas forming amounts, ensure full mould and yield, reduction goods unit weight;The effect of cement is in that regulate base substrate setting rate and improve product strength;The effect of Calx is in that to regulate slurry bodying velocity, promote that aluminium powder is got angry and improves product strength;The effect of fine sand is in that to provide skeleton and SiO2, make goods obtain intensity;The effect of Gypsum Fibrosum is in that regulate cement setting time and prevent false set, regulation and control pouring stability, improve blank strength;The effect of saponins air entraining agent is in that elimination aluminium powder cream surface stearic acid protective agent, promotes aluminium powder cream to get angry, surely steeps, regulates and controls slurry pouring stability, improves qualification rate, improves the utilization rate of aluminium powder and Calx;The effect of mixing water is in that the utilization rate of hydration reaction substrate, raising aluminium powder and the Calx that offer is enough.
The method can significantly improve it is critical only that by adding a small amount of saponins air entraining agent of casting aerated concrete stability, control the setting rate of production process slurry, bodying velocity and raising rate and match, occur without slurry and collapse mould and base substrate shrinkage phenomenon.
What the present invention can significantly reduce building block product unit weight and aperture it is critical only that production process provides enough basicity and moisture, ensure effective gas forming amount of aluminium powder, make the bubble discharged can uniformly be diffused in slurry and form microcellular structure, improve unit aluminium powder gas forming amount also by adding a small amount of saponins air entraining agent.
What the present invention improved building block product intensity it is critical only that production process to provide enough siliceous and calcareous materials, makes generate hydrated calcium silicate and aquation calcium aluminosilicate crystallizable mineral further when steam press maintenance, improves intensity after goods.
The beneficial effects of the present invention is:
1, compared with normal concrete, the aerated concrete products of the present invention have light porous, masonry strength usage factor is big, durability 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 function admirable, hydrophobic impermeability is good, machinability is strong, raw material sources are extensive, production efficiency is high, energy consumption is low, it is the following green building material new varieties widelyd popularize of country, country can be met and carry out the process of urbanization and build and the needs of economical and environment-friendly social construction.
2, in order to overcome existing air entrained concrete production technology defect, the present invention mixes a small amount of saponins air entraining agent by dispensing, hardening of cement speed, Calx bodying velocity just can be made more to mate with aluminium powder raising rate, improve slurry pouring stability, collapse mould and shrinkage phenomenon not easily occur, the qualification rate height of air entrained concrete, more lightweight, porous, high intensity, have beyond thought substantial advance.Compared with comparative example, ratio of water to material and the unit aluminium powder gas forming amount of casting process have been respectively increased 5.8~9.6% and 7.4~9.4%, and the volume of resulting product and comprcssive strength have been respectively increased 4.7~5.2% and 15.2~16.0%, unit weight decreases 5.2~6.1%.
3, compared with existing air entrained concrete factory formula, the present invention with the addition of the saponins concrete air-entrainer (being called for short: saponins air entraining agent) (application publication number CN103466984A) with independent intellectual property right in formula.This saponins air entraining agent extracts from oil tea, Fructus Sapindi Mukouossi, Fructus Gleditsia, the wood plant containing saponin such as Semen arachidis hypogaeae, Lignum Xanthoceratis, and its main functional component is Saponin.Saponin is made up of sapogenin, saccharide ligand and organic acid three part, containing hydrophilic and lipophilic group, is a class Triterpenoids sapogenins saponins mixture, and close and distant equilibrium valve HLB is up to 16, and water solublity is fine.
4, the present invention adds saponins air entraining agent in formula and can bring following remarkable advantage:
(1) the saponins air entraining agent that the present invention adopts also is a kind of nonionic surfactant simultaneously, its hydrophilic group is made up of the oxy radical of strong electronegativity, its lipophilic group is to be made up of nonpolar hydrocarbon ring key, aluminium powder cream can be made more soluble in alkaline medium, gas forming amount is bigger, and aluminium powder cream utilization rate is bigger.
(2) the saponins air entraining agent of the present invention can be adsorbed onto the protectant aluminum particle surface of stearic acid, by adsorb, infiltration, infiltration, rolling off effect, make stearic acid get off from aluminium powder sur-face peeling, make aluminium powder surface comparatively fast exposed out, faster get angry.
(3) the saponins air entraining agent of the present invention is dissolved in air entrained concrete slurry, can form unimolecule arrangement at gas-liquid interface, make the surface tension of bubble reduce;Owing to the molecular weight of Saponin is big, the aquation thickness of formation, foam stabilizing effect is good, and Saponin molecule can cover bubble surface, makes air bubble intensity bigger, is less susceptible to expand and break, make base substrate pore less, evenly, finer and close, be more likely formed non-interconnected hole.
5, compared with existing process for producing aerated concrete, the present invention is only in the addition of a small amount of saponins air entraining agent in formula, so that it may increasing substantially the ratio of water to material of production process, the raising of ratio of water to material can bring following remarkable advantage:
(1) in the basic conditions, aluminium powder reaction equation of getting angry is 2Al+3Ca (OH)2+6H2O→3CaO·Al2O3·6H2O+3H2↑, 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, so, aluminium powder is got angry will be more complete, be remarkably improved aluminium powder utilization rate and goods yield, and reduce goods unit weight and production cost.
(2) lime digestion reaction equation is CaO+H2O→Ca(OH)2+Ca2++OH-, lime digestion can produce substantial amounts of Ca (OH)2、Ca2+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 deeper into, be remarkably improved slurry pouring temperature, Calx utilization rate and product strength, 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, it is ensured that the aluminium powder hydrogen produced of getting angry readily diffuses into each corner of slurry, form more micro-bubble and be more evenly distributed, being remarkably improved goods porosity, reduce pore opening.
(3) lime digestion process can produce substantial amounts of Ca (OH)2, Ca (OH)2 Ca2++2OH-, after improving due to ratio of water to material, have more water to can be used for dissolving Ca (OH)2, in slurry, pH value is higher, is more beneficial for the Al of aluminium powder cream2O3Oxide-film is dissolved by alkali liquor, Al2O3+2OH-→2AlO2 -+H2O, make aluminium powder surface comparatively fast exposed out, faster get angry, follow-up aluminium powder gets angry more completely, it is in hgher efficiency to get angry;Meanwhile, when being more beneficial for steam press maintenance, there is more Ca (OH)2And Ca2+With material SiO2And Al2O3Have an effect, generate hydrated calcium silicate and aquation aluminum silica gel calcium in Hydrothermal Synthesis mode, collectively promote the development of intensity after goods.
Detailed description of the invention
A kind of mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, each raw material weight percentage ratio in total siccative: cement 12~13%, Calx 12~13%, fine sand 71~72%, foaming agent in aluminum 0.035~0.036%, regulator 2.4~2.5%, air entraining agent in Saponin 0.008~0.010%;Mixing water and total siccative ratio (ratio of water to material) 0.55~0.57, above-mentioned raw material mixing after, through hydration reaction, pour into mould, in advance form base, excision forming, steam press maintenance, go out still processing, make light porous environmental protection and energy saving material.Goods dry density < 795kg/m3, comprcssive strength > 10.09MPa, pore average diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear comprcssive strength loss rate < 18%, dry state heat conductivity < 0.19W/ (m K), qualification rate > 95%, higher than the requirement of the bearing type autoclave aerated concrete building block high-class product that national standard is formulated, processing and the construction of building load bearing wall, wallboard and roof boarding can be applied to as novel wall material.
Described foaming agent is one or more in metallic aluminium, zinc, the powder of magnesium or unguentum, preferential selects aqueous aluminum powder cream.Described regulator is Gypsum Fibrosum.Described air entraining agent is saponins concrete air-entrainer, extracts from oil tea, Fructus Sapindi Mukouossi, Fructus Gleditsia, the wood plant containing saponin such as Semen arachidis hypogaeae, Lignum Xanthoceratis, and its main functional component is Saponin.Described fine sand is one or more in sea sand, river sand, fluvial sand, Machine-made Sand, Weathered Sand.
When mould internal volume is 3.24m3Time, raw material components and formula thereof be: cement 320~340kg, Calx 325~345kg, fine sand 1845~1875kg, Gypsum Fibrosum 63~65kg, aqueous aluminum powder cream in aluminum 0.91~0.93kg, saponins air entraining agent in Saponin 0.21~0.25kg, mixing water 1430~1470kg.
Mix Design carries 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 entraining agent adopts vanillin-concentrated sulphuric acid colorimetric determination (application publication number CN103466984A).
Divergence is the parameter characterizing fluidity of slurry, adopts cylinder mould algoscopy.By the cylinder mould of internal diameter 50mm, height 100mm, it is 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, measuring the extension diameter of two orthogonal directions of slurry, its meansigma methods 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 collects in Table 2.
Mix-design (the mould internal volume 3.24m of each embodiment of table 1 and comparative example3)
The goods Specifeca tion speeification of each embodiment of table 2 and comparative example
Embodiment 1
By table 1 formula, quantitatively weigh each raw material, first in cast pond, squeeze into Machine-made Sand and Weathered Sand mixture 1846kg, Gypsum Fibrosum 65kg and surface water 1150kg, stir evenly formation sand cream slurry, squeeze into Calx 343kg, cement 321kg and surplus mixing water again, stir evenly the some time, control slurry temperature, during temperature >=35 DEG C, the suspension that stream adds aqueous aluminum powder cream (in aluminum 0.91kg) and air entraining agent water preparation (in Saponin 0.25kg) is formed again, the stirring some time controls slurry divergence, during divergence >=30cm, it is 3.24m that slurry injects internal volume3Mould, after casting complete, mould moves on to and quiet stops the room maintenance some time, after base substrate meets solidification requirement, removing and quiet stop room, by vacateing mould after commercial specification excision forming, base substrate moves on to the still kettle High Temperature Curing some time, makes acceleration generate hydrated minerals, promote the rear strength development of base substrate, goods are rested 7 days in warehouse after going out still, make bearing type steam-pressing aero-concrete materials for wall.
After testing, casting process ratio of water to material reach 0.57, unit aluminium powder gas forming amount 0.927m3/ kg, quiet stop maintenance after base substrate volume reach 3.27m3, resulting product dry density 788kg/m3, comprcssive strength 10.16MPa, pore average diameter < 0.40mm, freeze rear mass loss rate < 4.5%, freeze rear comprcssive strength loss rate < 18%, dry state heat conductivity < 0.19W/(m K), qualification rate > 95%, higher than the requirement of the bearing type autoclave aerated concrete building block high-class product that national standard is formulated.
Embodiment 2
By table 1 formula, quantitatively weigh each raw material, first in cast pond, squeeze into fluvial sand 1861kg, Gypsum Fibrosum 64kg and river 1150kg, stir evenly formation sand cream slurry, then squeeze into Calx 332kg, cement 331kg and surplus mixing water, stir evenly the some time, control slurry temperature, during temperature >=35 DEG C, more directly pouring aluminium powder 0.92kg and air entraining agent powder (in Saponin 0.23kg) into, the stirring some time controls slurry divergence, during divergence >=30cm, it is 3.24m that slurry injects internal volume3Mould, after casting complete, mould moves on to and quiet stops the room maintenance some time, after base substrate meets solidification requirement, removing and quiet stop room, by vacateing mould after commercial specification excision forming, base substrate moves on to the still kettle High Temperature Curing some time, makes acceleration generate hydrated minerals, promote the rear strength development of base substrate, goods are rested 7 days in warehouse after going out still, make bearing type steam-pressing aero-concrete materials for wall.
After testing, casting process ratio of water to material reach 0.56, unit aluminium powder gas forming amount 0.941m3/ kg, base substrate volume reaches 3.28m3, resulting product dry density 790kg/m3, comprcssive strength 10.096MPa, pore average diameter < 0.45mm, drying shrinkage value < 0.45mm/m, freeze rear mass loss rate < 4.5%, freeze rear comprcssive strength loss rate < 18%, dry state heat conductivity < 0.19W/(m K), qualification rate > 95%, higher than the requirement of the bearing type autoclave aerated concrete building block high-class product that national standard is formulated.Compared with comparative example, ratio of water to material and the unit aluminium powder gas forming amount of casting process have been respectively increased 7.7% and 9.1%, and the volume of resulting product and comprcssive strength have been respectively increased 5.1% and 15.2%, unit weight decreases 5.8%.This material can be applied to processing and the construction of building load bearing wall, wallboard and roof boarding as novel wall material, is the single materials for wall that can meet China's cold district more than 65% power conservation requirement.
Embodiment 3
By table 1 formula, quantitatively weigh each raw material, first in cast pond, squeeze into sea sand 1875kg, Gypsum Fibrosum 63kg and sea water 1150kg, stir evenly formation sand cream slurry, squeeze into Calx 325kg, cement 341kg and surplus mixing water again, stir evenly the some time, control slurry temperature, during temperature >=35 DEG C, stream adds the suspension that aqueous aluminum powder cream (in aluminum 0.93kg), air entraining agent powder (in Saponin 0.21kg) and water 1.8kg are formed again, the stirring some time controls slurry divergence, during divergence >=30cm, it is 3.24m that slurry injects internal volume3Mould, after casting complete, mould moves on to and quiet stops the room maintenance some time, after base substrate meets solidification requirement, removing and quiet stop room, by vacateing mould after commercial specification excision forming, base substrate moves on to the still kettle High Temperature Curing some time, makes acceleration generate hydrated minerals, promote the rear strength development of base substrate, goods are rested 7 days in warehouse after going out still, make bearing type steam-pressing aero-concrete materials for wall.
After testing, casting process ratio of water to material reach 0.55, unit aluminium powder gas forming amount 0.943m3/ kg, base substrate volume reaches 3.28m3, resulting product dry density 795kg/m3, comprcssive strength 10.13MPa, pore average diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear comprcssive strength loss rate < 18%, dry state heat conductivity < 0.19W/(m K), qualification rate > 95%, higher than the requirement of the bearing type autoclave aerated concrete building block high-class product that national standard is formulated.
Comparative example
By table 1 formula, quantitatively weigh each raw material, first in cast pond, squeeze into fluvial sand 1885kg, Gypsum Fibrosum 66kg and river 1150kg, stir evenly formation sand cream slurry, then squeeze into Calx 333kg, cement 330kg and surplus mixing water, stir evenly the some time, control slurry temperature, during temperature >=35 DEG C, more directly pouring aluminium powder 0.91kg into, the stirring some time controls slurry divergence, during divergence >=30cm, it is 3.24m that slurry injects internal volume3Mould, after casting complete, mould moves on to and quiet stops the room maintenance some time, after base substrate meets solidification requirement, removing and quiet stop room, by vacateing mould after commercial specification excision forming, base substrate moves on to the still kettle High Temperature Curing some time, makes acceleration generate hydrated minerals, promote the rear strength development of base substrate, goods are rested 7 days in warehouse after going out still, make bearing type steam-pressing aero-concrete materials for wall.
After testing, when with embodiment 2 same recipe, when being not added with saponins air entraining agent, casting process ratio of water to material is maximum can only achieve 0.52, exceedes this limit and there will be the mould that collapses, under optimum process state, and unit aluminium powder gas forming amount 0.863m3/ kg, base substrate volume reaches 3.12m3, still cannot expire mould, resulting product dry density 839kg/m3, comprcssive strength 8.76MPa, pore average diameter > 0.5mm, drying shrinkage value > 0.5mm/m, freeze rear mass loss rate > 5%, freeze rear comprcssive strength loss rate > 20%, dry state heat conductivity > 0.20W/(m K), presentation quality qualification rate < 94%, qualification rate < 95%, can only achieve the requirement of the bearing type autoclave aerated concrete building block certified products that national standard is formulated.
Above example is further intended to citing and describes the present invention, rather than is intended to limit the present invention in any manner.All equalizations done according to present patent application scope change and modify, or are directly or indirectly used in other correlative technology field, all in like manner include in the scope of patent protection of the present invention.

Claims (6)

1. one kind is mixed bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, it is characterized in that: in total siccative, the percentage by weight of each raw material is: cement 12~13%, Calx 12~13%, fine sand 71~72%, foaming agent are in aluminum 0.035~0.036%, regulator 2.4~2.5%, air entraining agent in Saponin 0.008~0.010%, and the percentage by weight sum of each raw material is 100%;The weight ratio 0.55~0.57 of mixing water and total siccative;Described regulator is Gypsum Fibrosum;Described air entraining agent is saponins concrete air-entrainer;
Dry density < 795kg/m3, comprcssive strength > 10.09MPa, pore average diameter < 0.45mm, freeze rear mass loss rate < 4.5%, freeze rear comprcssive strength loss rate < 18%, dry state heat conductivity < 0.19W m-1·K-1, job efficiency > 95%, higher than the requirement of bearing type autoclave aerated concrete building block high-class product that national standard is formulated.
2. according to claim 1 mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, it is characterised in that: described foaming agent is powder or the unguentum of metallic aluminium.
3. according to claim 2 mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, it is characterised in that: described foaming agent is aqueous aluminum powder cream.
4. according to claim 1 mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, it is characterised in that: described fine sand is one or more in sea sand, river sand, fluvial sand, Machine-made Sand, Weathered Sand.
5. according to claim 1 mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, it is characterised in that: processing and the construction of the load bearing wall of building, wallboard and roof boarding it is applied to as materials for wall.
6. according to claim 1 mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent, it is characterized in that: after above-mentioned raw material is mixed, through hydration reaction, pour into mould, in advance form base, excision forming, steam press maintenance, go out still processing, obtain mixing bearing type steam-pressing aero-concrete materials for wall building block product prepared by saponins air entraining agent.
CN201410394773.2A 2014-08-13 2014-08-13 Mix bearing type steam-pressing aero-concrete materials for wall prepared by saponins air entraining agent Active CN104130008B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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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