CN102219451A - Polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete and preparation method thereof - Google Patents
Polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete and preparation method thereof Download PDFInfo
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- CN102219451A CN102219451A CN2011100925009A CN201110092500A CN102219451A CN 102219451 A CN102219451 A CN 102219451A CN 2011100925009 A CN2011100925009 A CN 2011100925009A CN 201110092500 A CN201110092500 A CN 201110092500A CN 102219451 A CN102219451 A CN 102219451A
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- granular polystyrene
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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
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/12—Multiple coating or impregnating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a method for preparing polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete. The polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete comprises the following raw materials in parts by weight: 1 part of cement, 0.40-0.50 part of coal ash, 0.80-1.20 parts of thin-layer cladded pumice sand, polystyrene particles and rubber particles, 0.010-0.015 part of admixture, 0.005-0.007 part of foaming agent, and 0.50-0.55 part of water. The preparation method comprises the following steps of: 1, preparing the thin-layer cladded pumice sand; 2, carrying out interface treatment on the polystyrene particles and the rubber particles; 3, adding the cement, the coal ash, the water, the admixture and the thin-layer cladded pumice sand to a stirring machine to be stirred according to proportions; 4, adding the polystyrene particles and the rubber particles subjected to the interface treatment in the stirring machine to be stirred continuously; and 5, after frothing, pouring the forthed foaming agent into the stirred mixture and uniformly stirring. According to the method disclosed by the invention, the mechanical property of the lightweight aggregate concrete is effectively improved; the thermal insulation performance is improved; and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of light aggregate concrete and preparation method thereof.
Background technology
Light aggregate concrete with light-weight aggregate be mixed with, the light concrete of 1900 kilograms/meter of little whats of unit weight, also claim the porous aggregate light concrete.Owing to contain a large amount of blind holes crack in the light aggregate concrete, make it have performances such as lightweight, thermal and insulating performance are good, easy construction, compare with normal concrete with label, can alleviate deadweight more than 20～30%.Existing light aggregate concrete normally is prepared into foam with mechanical means with the foaming agent aqueous solution, foam is joined in the slip of compositions such as containing siliceous material, calcareous material, water and various admixtures again, forms through mixing stirring, casting, maintenance.At present, lightweight material mainly adopts haydite, slag, float stone, pearlstone, polystyrene foam grain etc., but because above-mentioned raw materials output is little, skewness, reasons such as strange land transportation cost height, so objectively the overall condition deficiency of China's lightweight material causes the development of some regional light heat insulation materials to be restricted.There is the production cost height in existing light aggregate concrete, the problem that production energy consumption is big.The mode that production technique generally adopts each raw material to mix jointly fails to consider the material self-characteristic, influences the quality of light aggregate concrete.
Existing light aggregate concrete fails to make full use of trade waste and natural materials aborning, and raw-material cost height, production energy consumption are big.In Hebei, the huge float stone of regional reserves such as Shanxi, Inner Mongol and northeast, it is a kind of natural weight aggregate, advantages such as that the concrete of making has is in light weight, good heat insulating, it is a kind of material that obvious energy saving effect is arranged, it is developed and utilized, not only help building structure and building energy conservation, also help and drive local Economic development and social employment.In addition, waste rubber has very strong heat resistanceheat resistant, antibiont, anti-mechanicalness, is difficult to degraded, and decades even last a century can be owing to natural force disappears.And that polystyrene has is anti-aging, characteristics such as protection against corrosion, thus not perishable at occurring in nature, also be difficult for being degraded by microorganisms, even if buried, also can the polluted underground water source, destroy Soil structure, make the food crop underproduction.All do simple burning disposal as both, then again can severe contamination air and atmospheric environment.Waste rubber and waste polystyrene foam plastic are recycled, it is become the green resource of field of civil engineering by environmental hazard, both can reduce environmental pollution, can turn waste into wealth save energy again.
When mixing the system concrete, if it is pumice sand is directly prepared as lightweight material,, bigger to mixing water, grout absorbed dose because the float stone particle surface is coarse and have an exposed open hole, thereby make its concrete mix workability relatively poor, and cement consumption is bigger than normal concrete; Owing to sucked more grout in the hole, increase concrete density simultaneously, reduced the heat preservation and soundproof performance.And rubber grain, granular polystyrene belongs to organic materials, all is hydrophobic nature, mixes with the cement slurry of inorganic gel system, is difficult for wetting affinity between the two, causes fresh paste cohesion variation, can not directly prepare as lightweight material.On the other hand, granular polystyrene of different nature, rubber grain, float stone particle are mixed use altogether, if the grain diameter grating is unreasonable, will inevitably influence its concrete mix workability, and the mechanical property of hardenite and other physicalies.Therefore must the grain diameter grating carry out appropriate design.In addition, because granular polystyrene-rubber grain-pumice concrete has related to the use of multiple lightweight material, and three kinds of raw-material density, morphological differences are bigger, can not adopt mixing of normal concrete to make shape technology, otherwise be easy to generate each phase skewness of inside concrete, easy stratified phenomenon, thus its performance influenced.
Summary of the invention
The invention provides a kind of granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete and preparation method thereof, solve existing light aggregate concrete material cost height, problem that production energy consumption is big; And solve lightweight material and concrete workability poor, the density of light aggregate concrete is big, thermal conductivity is high, the technical problem that heat insulating effect is bad; Also solve preparation method's easy layering of inside concrete when mixing of common light aggregate concrete, influence the technical problem of product performance.
The technical solution adopted for the present invention to solve the technical problems is:
This granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, described its raw material is as follows by weight ratio:
1 part of cement;
0.40～0.50 part in flyash;
Pumice sand 0.709-1.063 part;
0.003～0.004 part of granular polystyrene;
0.088～0.133 part of rubber grain;
0.010～0.015 part of admixture;
0.005～0.007 part of whipping agent;
0.50～0.55 part in water.
Described granular polystyrene and rubber grain all are granular polystyrene and rubber grains of handling through interface treating agent, and interface treating agent is that a kind of the dilution with sodium silicate aqueous solution wherein of silane coupling agent, titanate coupling agent or chromium complex coupling agent forms.
The particle diameter of described pumice sand is 2～6mm.
The particle diameter of described granular polystyrene is 4～7mm.
The particle diameter of described rubber grain is 16～20 orders.
Described admixture is one or more the mixture in high efficiency water reducing agent, hardening accelerator, the frostproofer.
Described its best by weight proportioning of raw material is as follows:
1 part of cement;
0.43 part in flyash;
0.935 part of pumice sand;
0.004 part of granular polystyrene;
0.111 part of rubber grain;
0.010～0.015 part of admixture;
0.005～0.007 part of whipping agent;
0.50～0.55 part in water.
The preparation method of this granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, step is as follows:
Step 1, the preparation thin layer is wrapped up in the shell pumice sand, prewets with sodium silicate aqueous solution spray pumice sand earlier; Stir in the cement that the pumice sand input of prewetting is mixed, the flyash slurry again, make the pumice sand surface evenly be surrounded by one deck shell; After natural curing obtain thin layer after 24 hours and wrap up in the shell pumice sand;
Step 2, granular polystyrene and rubber grain are carried out interface processing, taking by weighing interface treating agent in the ratio of 160～250g/L adds in the sodium silicate aqueous solution and dilutes, interface treating agent after will diluting is then slowly poured in the container that fills granular polystyrene and rubber grain, the limit bevelling stirs, up to granular polystyrene and rubber grain can homodisperse, the surface have even slick to distribute and granular polystyrene not because of the electrostatic repulsion overflow container outside till, leave standstill after 10 minutes standby;
Step 3 is wrapped up in the shell pumice sand by proportioning with cement, flyash, water, admixture and the thin layer for preparing and is dropped in the stirrer and stir;
Step 4 drops into continuation stirring in the stirrer with granular polystyrene after the interface processing and rubber grain;
Step 5 is poured above-mentioned stirring thing into after whipping agent got blisters, and makes granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete after stirring.
The consumption of cement, flyash and water is 1: 2: 0.5 in the cement of described step 1, the flyash slurry.
Beneficial effect of the present invention is as follows:
The present invention adopts thin layer to wrap up in shell pumice sand, granular polystyrene and rubber grain as lightweight material.Because the starting material pumice sand is good from heavy and light, shock resistance, be added in the concrete and can reduce light aggregate concrete density, improve the heat-insulating property of light aggregate concrete, not only help, also help and drive local Economic development and social employment pumiceous development and use.Also waste polystyrene foam, rubber item being processed into various varigrained particles simultaneously mixes in the concrete, because of both all have characteristics such as toughness, impermeability, antifatigue preferably, space in can fill concrete, the generation and the development of microfracture in the constraint, can improve concrete shock resistance and anti-seismic performance, also can effectively alleviate concrete weight, play the effect of heat insulating, sound insulation.In addition, waste rubber, polystyrene all have characteristics such as very strong antibiont, anti-aging, non-corrosibility, so not perishable at occurring in nature, also be difficult for being degraded by microorganisms, even if buried, also can the polluted underground water source, destroy Soil structure, make the food crop underproduction.In addition, waste rubber and waste polystyrene foam plastic are recycled, it is become the green resource of field of civil engineering by environmental hazard, both can reduce environmental pollution, can turn waste into wealth save energy again.
The present invention earlier wrapped pre-treatment to pumice sand before mixing the system concrete, the sodium silicate aqueous solution for preparing is sprayed the pumice sand surface uniformly, stirred while spray, guaranteed raw-material even wetting and have certain humidity.Wrap pre-treatment ground method and overcome the many easily shortcomings of suction in pumice sand particle hole.Thin layer is wrapped up in the surperficial aperture that shell has sealed pumice sand effectively, and improve its surfaceness, again during the mix concrete, can improve concrete workability well, and minimizing cement consumption, particularly stoped a large amount of grouts to be inhaled into hole, thereby alleviated concrete density, reduced its thermal conductivity and improved the heat preservation and soundproof performance.
In order to improve the cohesive force between rubber grain, granular polystyrene and the cement slurry, make it and cement between form bonding comparatively closely.The present invention had carried out the interface pre-treatment to rubber grain, granular polystyrene before mixing the system concrete.Rubber grain after the interface processing, granular polystyrene can be good at being bonded by grout, make to form cohesive force comparatively closely between itself and the cement, have significantly reduced the hole in the hardened paste, have improved the intensity of hardenite.Each uniform distribution mutually that reasonable grit grading and specific preparation technology make granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete has improved its mechanical property effectively, and has reduced concrete density, has improved its thermal and insulating performance.On the other hand, with starting material carry out break process, the pumice sand grain diameter is controlled at 2-6mm, the granular polystyrene particle diameter is controlled at 4-7mm, rubber adopts the particle of 18 orders (mean particle size is 995 μ m), thereby makes concrete workability, mechanical property better.
When mixing the system concrete at last, in order to make each phase uniform distribution of granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, the present invention has formulated specific preparation technology.Cement, flyash, suitable quantity of water and the thin layer handled well are wrapped up in the shell pumice sand to stir in stirrer; Next adds rubber grain after the interface processing, granular polystyrene and an amount of admixture, and mix is even once more; Pour concrete into after at last whipping agent being got blisters, make composite concrete after the stirring.This preparation technology is sequentially added into starting material, can make each phase uniform distribution of granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, has improved its mechanical property effectively, and has reduced concrete density, has improved its thermal and insulating performance.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is preparation technology's schema that thin layer is wrapped up in the shell pumice sand.
Fig. 2 is preparation technology's schema of granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete.
Embodiment
Embodiment is referring to shown in Figure 1, this granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, and described its raw material is as follows by weight ratio:
1 part of cement;
0.43 part in flyash;
0.935 part of pumice sand;
0.004 part of granular polystyrene;
0.111 part of rubber grain;
0.015 part of admixture;
0.006 part of whipping agent;
0.53 part in water.
Described pumice sand uses after thin layer is wrapped up in the shell pumice sand through being processed into, and granular polystyrene and rubber grain all are granular polystyrene and rubber grains of handling through interface treating agent, and interface treating agent adopts silane coupling agent to form with the sodium silicate aqueous solution dilution.
Embodiment two, this granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, and described its raw material is as follows by weight ratio:
1 part of cement;
0.42 part in flyash;
1.063 parts of pumice sands;
0.003 part of granular polystyrene;
0.088 part of rubber grain;
0.012 part of admixture;
0.007 part of whipping agent;
0.55 part in water.
Described pumice sand uses after thin layer is wrapped up in the shell pumice sand through being processed into, and granular polystyrene and rubber grain all are granular polystyrene and rubber grains of handling through interface treating agent, and interface treating agent adopts silane coupling agent to form with the sodium silicate aqueous solution dilution.
Embodiment three, this granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, and described its raw material is as follows by weight ratio:
1 part of cement;
0.50 part in flyash;
0.709 part of pumice sand;
0.004 part of granular polystyrene;
0.133 part of rubber grain;
0.010 part of admixture;
0.005 part of whipping agent;
0.55 part in water.
Described pumice sand uses after thin layer is wrapped up in the shell pumice sand through being processed into, and granular polystyrene and rubber grain all are granular polystyrene and rubber grains of handling through interface treating agent, and interface treating agent adopts titanate coupling agent to form with the sodium silicate aqueous solution dilution.
Embodiment four, this granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, and described its raw material is as follows by weight ratio:
1 part of cement;
0.40 part in flyash;
0.843 part of pumice sand;
0.003 part of granular polystyrene;
0.122 part of rubber grain;
0.015 part of admixture;
0.007 part of whipping agent;
0.54 part in water.
Described pumice sand uses after thin layer is wrapped up in the shell pumice sand through being processed into, and granular polystyrene and rubber grain all are granular polystyrene and rubber grains of handling through interface treating agent, and interface treating agent adopts silane coupling agent to form with the sodium silicate aqueous solution dilution.
In the foregoing description one to four, the particle diameter of described pumice sand is 2～6mm.The particle diameter of granular polystyrene is 4～7mm.The particle diameter of rubber grain is 16～20 orders.Admixture is one or more the mixture in high efficiency water reducing agent, hardening accelerator, the frostproofer.
Referring to Fig. 1, shown in Figure 2, the preparation method of this granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete, step is as follows:
Step 1, the preparation thin layer is wrapped up in the shell pumice sand, prewets with sodium silicate aqueous solution spray pumice sand earlier; Stir in the cement that the pumice sand input of prewetting is mixed, the flyash slurry again, make the pumice sand surface evenly be surrounded by one deck shell; After natural curing obtain thin layer after 24 hours and wrap up in the shell pumice sand;
Step 2, granular polystyrene and rubber grain are carried out interface processing, taking by weighing interface treating agent in the ratio of 160～250g/L adds in the sodium silicate aqueous solution and dilutes, interface treating agent after will diluting is then slowly poured in the container that fills granular polystyrene and rubber grain, the limit bevelling stirs, up to granular polystyrene and rubber grain can homodisperse, the surface have even slick to distribute and granular polystyrene not because of the electrostatic repulsion overflow container outside till, leave standstill after 10 minutes standby;
Step 3 is wrapped up in the shell pumice sand by proportioning with cement, flyash, water, admixture and the thin layer for preparing and is dropped in the stirrer and stir;
Step 4 drops into continuation stirring in the stirrer with granular polystyrene after the interface processing and rubber grain;
Step 5 is poured above-mentioned stirring thing into after whipping agent got blisters, and makes granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete after stirring.
The consumption of cement, flyash and water is 1: 2: 0.5 in the cement of described step 1, the flyash slurry.
Claims (9)
1. granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete is characterized in that: described its raw material is as follows by weight ratio:
1 part of cement;
0.40～0.50 part in flyash;
Pumice sand 0.709-1.063 part;
0.003～0.004 part of granular polystyrene;
0.088～0.133 part of rubber grain;
0.010～0.015 part of admixture;
0.005～0.007 part of whipping agent;
0.50～0.55 part in water.
2. granular polystyrene-rubber grain according to claim 1-float stone composite light-weight aggregate concrete, it is characterized in that: described granular polystyrene and rubber grain all are granular polystyrene and rubber grains of handling through interface treating agent, and interface treating agent is that a kind of the dilution with sodium silicate aqueous solution wherein of silane coupling agent, titanate coupling agent or chromium complex coupling agent forms.
3. granular polystyrene-rubber grain according to claim 1-float stone composite light-weight aggregate concrete is characterized in that: the particle diameter of described pumice sand is 2～6mm.
4. granular polystyrene-rubber grain according to claim 1-float stone composite light-weight aggregate concrete is characterized in that: the particle diameter of described granular polystyrene is 4～7mm.
5. granular polystyrene-rubber grain according to claim 1-float stone composite light-weight aggregate concrete is characterized in that: the particle diameter of described rubber grain is 16～20 orders.
6. granular polystyrene-rubber grain according to claim 1-float stone composite light-weight aggregate concrete is characterized in that: described admixture is one or more the mixture in high efficiency water reducing agent, hardening accelerator, the frostproofer.
7. granular polystyrene-rubber grain according to claim 1-float stone composite light-weight aggregate concrete is characterized in that: described its best by weight proportioning of raw material is as follows:
1 part of cement;
0.43 part in flyash;
0.935 part of pumice sand;
0.004 part of granular polystyrene;
0.111 part of rubber grain;
0.010～0.015 part of admixture;
0.005～0.007 part of whipping agent;
0.50～0.55 part in water.
8. preparation method as granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete as described in any one of the claim 1～7 is characterized in that step is as follows:
Step 1, the preparation thin layer is wrapped up in the shell pumice sand, prewets with sodium silicate aqueous solution spray pumice sand earlier; Stir in the cement that the pumice sand input of prewetting is mixed, the flyash slurry again, make the pumice sand surface evenly be surrounded by one deck shell; After natural curing obtain thin layer after 24 hours and wrap up in the shell pumice sand;
Step 2, granular polystyrene and rubber grain are carried out interface processing, taking by weighing interface treating agent in the ratio of 160～250g/L adds in the sodium silicate aqueous solution and dilutes, interface treating agent after will diluting is then slowly poured in the container that fills granular polystyrene and rubber grain, the limit bevelling stirs, up to granular polystyrene and rubber grain can homodisperse, the surface have even slick to distribute and granular polystyrene not because of the electrostatic repulsion overflow container outside till, leave standstill after 10 minutes standby;
Step 3 is wrapped up in the shell pumice sand by proportioning with cement, flyash, water, admixture and the thin layer for preparing and is dropped in the stirrer and stir;
Step 4 drops into continuation stirring in the stirrer with granular polystyrene after the interface processing and rubber grain;
Step 5 is poured above-mentioned stirring thing into after whipping agent got blisters, and makes granular polystyrene-rubber grain-float stone composite light-weight aggregate concrete after stirring.
9. the preparation method of granular polystyrene-rubber grain according to claim 8-float stone composite light-weight aggregate concrete is characterized in that: the consumption of cement, flyash and water is 1: 2: 0.5 in the cement of described step 1, the flyash slurry.
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| CN103102119A (en) * | 2011-11-10 | 2013-05-15 | 比亚迪股份有限公司 | Hardening agent and preparation method thereof |
| CN103526856A (en) * | 2013-10-13 | 2014-01-22 | 许庆华 | Unfired pumice foamed acoustic panel |
| CN103864382A (en) * | 2014-03-22 | 2014-06-18 | 常州工程职业技术学院 | Heat-insulating and sound-isolating light foamed concrete material and preparation method thereof |
| CN104129963A (en) * | 2014-07-31 | 2014-11-05 | 济南大学 | Light plant-growing concrete applicable to wetland protection project |
| CN106116355A (en) * | 2016-06-28 | 2016-11-16 | 河北建筑工程学院 | A kind of environmental protection lightweight aggregate concrete and preparation method thereof |
| CN106866172A (en) * | 2017-03-29 | 2017-06-20 | 河北建筑工程学院 | A kind of float stone tailing foam concrete and preparation method thereof |
| CN113831150A (en) * | 2021-07-08 | 2021-12-24 | 湖北峰峦新材料科技有限公司 | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103102119A (en) * | 2011-11-10 | 2013-05-15 | 比亚迪股份有限公司 | Hardening agent and preparation method thereof |
| CN103102119B (en) * | 2011-11-10 | 2015-08-26 | 比亚迪股份有限公司 | A kind of stiffening agent and preparation method thereof |
| CN103526856A (en) * | 2013-10-13 | 2014-01-22 | 许庆华 | Unfired pumice foamed acoustic panel |
| CN103864382A (en) * | 2014-03-22 | 2014-06-18 | 常州工程职业技术学院 | Heat-insulating and sound-isolating light foamed concrete material and preparation method thereof |
| CN103864382B (en) * | 2014-03-22 | 2016-04-06 | 常州工程职业技术学院 | A kind of heat insulation sound-proof light foam concrete material and preparation method thereof |
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| CN106116355A (en) * | 2016-06-28 | 2016-11-16 | 河北建筑工程学院 | A kind of environmental protection lightweight aggregate concrete and preparation method thereof |
| CN106866172A (en) * | 2017-03-29 | 2017-06-20 | 河北建筑工程学院 | A kind of float stone tailing foam concrete and preparation method thereof |
| CN106866172B (en) * | 2017-03-29 | 2019-10-29 | 河北建筑工程学院 | A kind of float stone-tailing foam concrete and preparation method thereof |
| CN113831150A (en) * | 2021-07-08 | 2021-12-24 | 湖北峰峦新材料科技有限公司 | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall |
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