CN102875072B - Fluorite slag-containing aerated concrete block - Google Patents
Fluorite slag-containing aerated concrete block Download PDFInfo
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- CN102875072B CN102875072B CN201210304885.5A CN201210304885A CN102875072B CN 102875072 B CN102875072 B CN 102875072B CN 201210304885 A CN201210304885 A CN 201210304885A CN 102875072 B CN102875072 B CN 102875072B
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Abstract
The invention discloses a fluorite slag-containing aerated concrete block. The fluorite slag-containing aerated concrete block is prepared from the following raw materials by the conventional process for preparing the aerated concreted block: 25 to 30 weight parts of coal ash, 5 to 10 weight parts of cement, 10 to 15 weight parts of quick lime, 5 to 10 weight parts of modified nano powder, 5 to 10 weight parts of volcanic rock powder, 3 to 5 weight parts of gypsum, 0.05 to 0.1 weight part of aluminum powder, 0.02 to 0.08 weight part of peregal, 0.03 to 0.08 weight part of oxyparaffin soap, 0.3 to 0.5 weight part of soda ash, 0.5 to 0.8 weight part of bentonite, 0.3 to 0.5 weight part of zinc stearate, 0.01 to 0.03 weight part of aluminum hydroxide, 0.05 to 0.1 weight part of sodium hexametaphosphate and an appropriate amount of water. Nano mineral powder is added, so that the volume weight of the brick, and the energy consumption are reduced; the aerated brick is high in thermal insulation performance and sound insulation performance; compared with the conventional aerated concrete block, the fluorite slag-containing aerated concrete block has the advantages that the thermal insulation performance and the sound insulation performance are improved obviously; the raw materials are mixed according to an optimized formula; and the intensity and the freezing resistance of the brick are improved obviously.
Description
Technical field
The present invention relates to brick field, is exactly the air-entrained concrete building block that a kind of raw material contains fluorite slag.
Background technology
Gas concrete is a kind of novel wall material, and its unique distinction is that it is a kind of novel building walling of very light-duty heat insulating.Gas concrete technology started from before 100 years, and that this technology of China starts is more late, and than abroad totally having fallen behind 40 years, still, the development of the gas concrete industry of China is really very fast.Domestic gas concrete technical matters level can reach international most advanced level now.
Gas concrete sharpest edges economize the land resource exactly, need not waste a large amount of arable lands, and the source of its raw material very extensively, dust and sand, slag, flyash and coal gangue etc. are all the starting material that do gas concrete.And very superior of the performance characteristics of gas concrete, have extraordinary can working ability and heat insulation and insulated capacity, and very strong of plasticity-, can saw by Bao, has extraordinary processing characteristics.
According to authoritative sources statistics, several years ago there is family more than 300 in domestic gas concrete industry production enterprise.The throughput of each producer is also different, has to produce 20000 cubes also have per year and produce the minority of 100,000 cubes per year and also have and produce 300000 cubes per year.And now development slowly of gas concrete industry heat is come, rough statistics now, before being several times of domestic gas concrete manufacturer quantity.
The application of gas concrete very extensively, be mainly used in load-bearing walling and non-bearing material Hezhou filling enclosure walls around such as materials for wall, infilled wall, floor and roof boarding in mechanical factory building and covil construction.
Gradually, gas concrete has become the leading showpiece of building material industry, and country is the stopping production of forbidding to clay solid brick now.Instead be exactly air-entrained concrete building block gradually, autoclaved brick, but the intensity of the air-entrained concrete building block that general conventional gas concrete is manufactured is lower.
Air-entrained concrete building block is the New Building Materials that a kind of light porous, heat insulating, fire resistance are good, can follow closely, can saw, can dig and have certain shock resistance.As far back as the '30s initial stage, China just starts to produce this product, and is widely used in the high-low storey buildings such as International Hotel, Shanghai, mansion, Shanghai, building, Foochow, People's Bank of China building.A kind of good New Building Materials.And there is the advantages such as environmental protection.
Fatty alcohol-polyoxyethylene ether, levelling agent has another name called peregal, belong to nonionic surface active agent, outward appearance is oyster white or beige ointment shape, when molecular weight is higher, be solid state (can make as requested chip solid), soluble in water, ethanol, ethylene glycol etc., have cloud point, 1% aqueous ph value is neutral.Acidproof, alkaline-resisting, the resistance to hard water of energy, heat-resisting, resistance to heavy metallic salt.Various dyestuffs are had to powerful level-dyeing property, slow metachromia, perviousness, diffustivity, and when kiering, tool helps experienced performance, can be with various surfactants and dyestuff with molten use.
The contaminative waste residue of discharging when red mud is Aluminium industry extraction aluminum oxide, 1 ton of aluminum oxide of the every production of average, 1.0～2.0 tons of red muds of subsidiary generation.China is as large alumina producing state of the world the 4th, and the red mud of annual discharge is up to millions of tons.
Fluorite, claims again fluorite, is the main source of industrial fluorine element, is one of 20 several important nonmetalliferous ore raw materials in the world.Fluorite slag current social utilization ratio is little, is unfavorable for environment protection health.
Summary of the invention
The object of this invention is to provide the air-entrained concrete building block that a kind of intensity is high, unit weight is little, the raw material of good heat insulating contains fluorite slag.
Above-mentioned purpose realizes by following scheme:
The air-entrained concrete building block that a kind of raw material contains fluorite slag, it is characterized in that, it is to be made according to the conventional manufacturing process of air-entrained concrete building block by the raw material of following weight parts: flyash 25-30, cement 5-10, unslaked lime 10-15, modified Nano powder 3-5, volcano rock dust 2-4, dicalcium powder 1-2, gypsum 3-5, aluminium powder 0.05-0.1, peregal 0.002-0.008, oxidized paraffin wax soap 0.03-0.08, soda ash 0.3-0.5, wilkinite 0.5-0.8, Zinic stearas 0.3-0.5, aluminium hydroxide 0.01-0.03, Sodium hexametaphosphate 99 0.05-0.1, water are appropriate;
The preparation method of described modified Nano powder is: after being mixed by 8-9 weight part calcium carbonate, 1-2 weight part quartz sand, 1-2 weight part red mud, 2-4 weight part fluorite slag, 3-6 weight part diatomite at 600-700 DEG C scaling loss 4-5 hour, after grind to form nanometer powder, the dioctyl maleate agitating of admixing the epoxidation tri-glyceride, the 1-2% that are equivalent to powder weight 1-2% is even, dry, after being ground into powder and get final product;
The preparation method of described volcano rock dust is: after volcanics is levigate, cross 100-200 mesh sieve and get final product.
The air-entrained concrete building block that described a kind of raw material contains fluorite slag, is characterized in that: preparation technology comprises the following steps: starting material mix, pour into the mold, precuring, the demoulding, cutting, steam press maintenance, warehouse-in.
The air-entrained concrete building block that described a kind of raw material contains fluorite slag, is characterized in that: preparation technology comprises the following steps:
(1) take by weight flyash and gypsum, grind to obtain flyash-gypsum mixed slurry adding after being uniformly mixed 2-3min after appropriate water under 700-1000rpm, then add all the other raw materials to be uniformly mixed 4-6min under 1800-2800rpm, obtain mixed slurry;
(2) gained mixed slurry is poured into the mold moulding, after at 40-50 DEG C precuring 1-3 hour, the demoulding, handling to cutting part cuts, and obtains building block base;
(3) building block base is put into reactor steam press maintenance, put in storage and get final product.
The air-entrained concrete building block that described a kind of raw material contains fluorite slag, is characterized in that: the duration of described steaming pressuring curing process is 8-12 hour, and temperature is 170-180 DEG C, and pressure is 0.9-1.3MPa.
Beneficial effect of the present invention is:
1, the present invention, by adopting the composition of waste material as air-entrained concrete building block, has effectively reduced environmental pollution, turns waste into wealth, and has protected environment; The present invention, by adding nanometer powder breeze, has alleviated the unit weight of brick, meanwhile, has reduced energy consumption; Brick of the present invention is heat insulation all good with sound-proofing properties, and more existing air-entrained concrete building block is significantly improved.The present invention is simultaneously by optimization of C/C composites materials, and intensity of the present invention, frost resistance are significantly improved;
2, the unit weight of this building block is 500-600kg/m
3, good heat insulating, has a large amount of pores and micropore in building block inside, thereby to have good thermal and insulating performance, ultimate compression strength be 5.5-7.8MPa.
Embodiment
embodiment 1
The air-entrained concrete building block that raw material contains fluorite slag, it is to be made according to the conventional manufacturing process of air-entrained concrete building block by the raw material of following weight (kg): flyash 25, cement 5, unslaked lime 10, modified Nano powder 5, volcano rock dust 2, dicalcium powder 1, gypsum 3, aluminium powder 0.1, peregal 0.008, oxidized paraffin wax soap 0.08, soda ash 0.3, wilkinite 0.5, Zinic stearas 0.3, aluminium hydroxide 0.013, Sodium hexametaphosphate 99 0.1, water are appropriate;
The preparation method of described modified Nano powder is: after being mixed by 8kg calcium carbonate, 1kg quartz sand, 1kg red mud, 4kg fluorite slag, 3kg diatomite at 700 DEG C scaling loss 5 hours, after grind to form nanometer powder, admix that to be equivalent to epoxidation tri-glyceride, 2% the dioctyl maleate agitating of powder weight 2% even, dry, after being ground into powder and get final product;
The preparation method of described volcano rock dust is: after volcanics is levigate, cross 100 mesh sieves and get final product.
The preparation technology of the air-entrained concrete building block that described a kind of raw material contains fluorite slag comprises the following steps: starting material mix, pour into the mold, precuring, the demoulding, cutting, steam press maintenance, warehouse-in.
The average unit weight of this building block is 590kg/m
3, good heat insulating, has a large amount of pores and micropore in building block inside, thereby to have good thermal and insulating performance, ultimate compression strength be 6.9MPa.
embodiment 2
The air-entrained concrete building block that raw material contains fluorite slag, it is to be made according to the conventional manufacturing process of air-entrained concrete building block by the raw material of following weight (kg): flyash 25, cement 10, unslaked lime 15, modified Nano powder 4, volcano rock dust 2, dicalcium powder 1, gypsum 3, aluminium powder 0.1, peregal 0.002, oxidized paraffin wax soap 0.03, soda ash 0.5, wilkinite 0.8, Zinic stearas 0.3, aluminium hydroxide 0.01, Sodium hexametaphosphate 99 0.05, water are appropriate;
The preparation method of described modified Nano powder is: after being mixed by 9kg calcium carbonate, 1.5kg quartz sand, 2kg red mud, 2.5kg fluorite slag, 3kg diatomite at 600 DEG C scaling loss 4 hours, after grind to form nanometer powder, admix that to be equivalent to epoxidation tri-glyceride, 1% the dioctyl maleate agitating of powder weight 1% even, dry, after being ground into powder and get final product;
The preparation method of described volcano rock dust is: after volcanics is levigate, cross 100 mesh sieves and get final product.
The air-entrained concrete building block that described a kind of raw material contains fluorite slag, preparation technology comprises the following steps:
(1) take by weight proportion flyash and gypsum, grind to obtain flyash-gypsum mixed slurry adding after being uniformly mixed 2min after appropriate water under 800rpm, then add all the other raw materials to be uniformly mixed 5min under 2500rpm, obtain mixed slurry;
(2) gained mixed slurry is poured into the mold moulding, after precuring 2 hours at 50 DEG C, the demoulding, handling to cutting part cuts, and obtains building block base;
(3) building block base is put into reactor steam press maintenance, put in storage and get final product.
The average unit weight of this building block is 510kg/m
3, good heat insulating, has a large amount of pores and micropore in building block inside, thereby to have good thermal and insulating performance, ultimate compression strength be 6.7MPa.
embodiment 3
The air-entrained concrete building block that raw material contains fluorite slag, it is to be made according to the conventional manufacturing process of air-entrained concrete building block by the raw material of following weight (kg): fineness is that 200 object flyash 25, cement 10, unslaked lime 15, modified Nano powder 5, volcano rock dust 2, fineness are that 100 object dicalcium powders 1, gypsum 3, aluminium powder 0.1, peregal 0.002, oxidized paraffin wax soap 0.03, soda ash 0.5, fineness are that 180 object wilkinites 0.8, Zinic stearas 0.3, aluminium hydroxide 0.01, Sodium hexametaphosphate 99 0.05, water are appropriate;
The preparation method of described modified Nano powder is: after being mixed by 8kg calcium carbonate, 1kg quartz sand, 2kg red mud, 2.5kg fluorite slag, 3kg diatomite at 700 DEG C scaling loss 4 hours, after grind to form nanometer powder, admix that to be equivalent to epoxidation tri-glyceride, 1% the dioctyl maleate agitating of powder weight 1% even, dry, after being ground into powder and get final product;
The preparation method of described volcano rock dust is: after volcanics is levigate, cross 100 mesh sieves and get final product.
The air-entrained concrete building block that described a kind of raw material contains fluorite slag, preparation technology comprises the following steps:
(1) take by weight proportion flyash and gypsum, grind to obtain flyash-gypsum mixed slurry adding after being uniformly mixed 2min after appropriate water under 800rpm, then add all the other raw materials to be uniformly mixed 5min under 2500rpm, obtain mixed slurry;
(2) gained mixed slurry is poured into the mold moulding, after precuring 2 hours at 45 DEG C, the demoulding, handling to cutting part cuts, and obtains building block base;
(3) building block base is put into reactor steam press maintenance 9 hours, temperature is 180 DEG C, and pressure is 1.1MPa, and warehouse-in, to obtain final product.Before maintenance, the heating-up time is 3 hours, and after maintenance, temperature fall time is 4 hours.
The average unit weight of this building block is 530kg/m
3, good heat insulating, has a large amount of pores and micropore in building block inside, thereby to have good thermal and insulating performance, mean value ultimate compression strength be 7.3MPa.
Claims (4)
1. the air-entrained concrete building block that raw material contains fluorite slag, it is characterized in that, it is to be made according to the conventional manufacturing process of air-entrained concrete building block by the raw material of following weight parts: flyash 25-30, cement 5-10, unslaked lime 10-15, modified Nano powder 3-5, volcano rock dust 2-4, dicalcium powder 1-2, gypsum 3-5, aluminium powder 0.05-0.1, peregal 0.002-0.008, oxidized paraffin wax soap 0.03-0.08, soda ash 0.3-0.5, wilkinite 0.5-0.8, Zinic stearas 0.3-0.5, aluminium hydroxide 0.01-0.03, Sodium hexametaphosphate 99 0.05-0.1, water are appropriate;
The preparation method of described modified Nano powder is: after being mixed by 8-9 weight part calcium carbonate, 1-2 weight part quartz sand, 1-2 weight part red mud, 2-4 weight part fluorite slag, 3-6 weight part diatomite at 600-700 DEG C scaling loss 4-5 hour, after grind to form nanometer powder, the dioctyl maleate agitating of admixing the epoxidation tri-glyceride, the 1-2% that are equivalent to powder weight 1-2% is even, dry, after being ground into powder and get final product;
The preparation method of described volcano rock dust is: after volcanics is levigate, cross 100-200 mesh sieve and get final product.
2. the air-entrained concrete building block that a kind of raw material according to claim 1 contains fluorite slag, is characterized in that: preparation technology comprises the following steps: starting material mix, pour into the mold, precuring, the demoulding, cutting, steam press maintenance, warehouse-in.
3. the air-entrained concrete building block that a kind of raw material according to claim 1 contains fluorite slag, is characterized in that: preparation technology comprises the following steps:
(1) take by weight flyash and gypsum, grind to obtain flyash-gypsum mixed slurry adding after being uniformly mixed 2-3min after appropriate water under 700-1000rpm, then add all the other raw materials to be uniformly mixed 4-6min under 1800-2800rpm, obtain mixed slurry;
(2) gained mixed slurry is poured into the mold moulding, after at 40-50 DEG C precuring 1-3 hour, the demoulding, handling to cutting part cuts, and obtains building block base;
(3) building block base is put into reactor steam press maintenance, put in storage and get final product.
4. the air-entrained concrete building block that contains fluorite slag according to a kind of raw material described in claim 2 or 3, is characterized in that: the duration of described steaming pressuring curing process is 8-12 hour, and temperature is 170-180 DEG C, and pressure is 0.9-1.3MPa.
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Inventor after: Miao Haibao Inventor after: Huang Zhen Inventor before: Jin Yuanlong Inventor before: Chen Dequan |
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Effective date of registration: 20171207 Address after: 221000 Jiangsu city of Xuzhou province Hankanglu Peixian Economic Development Zone on the west side, Xu Pei East Railway Patentee after: Peixian caste Concrete Co., Ltd. Address before: 243100 Anhui city of Ma'anshan province Dangtu County regardless of what industrial garden road No. 3 Patentee before: Ma'an Mountain Bao Long building material company limited |