The preparation technology of the aerated bricks that a kind of raw material contains fluorite slag
Technical field
The present invention relates to the preparation technology field of brick, is exactly the preparation technology of a kind of raw material aerated bricks of containing 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, ground granulated blast furnace slag and coal gangue etc. are all the starting material of doing 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 the load-bearing wallings such as materials for wall, infilled wall, floor and roof boarding and non-bearing material Hezhou filling enclosure wall around 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.Yet the intensity of the aerated bricks that general conventional gas concrete is manufactured is lower.
Summary of the invention
The object of the present invention is to provide the preparation technology of the aerated bricks that a kind of products obtained therefrom intensity raw material high, that unit weight is low contains fluorite slag.
Above-mentioned purpose realizes by following scheme:
A preparation technology for the aerated bricks that raw material contains fluorite slag, is characterized in that: comprise the following steps:
(1) by 10-12 weight part calcium carbonate, 3-5 weight part fluorite slag, 1-2 weight part oyster shell whiting, 2-4 weight part volcano rock dust, 4-8 weight part colliery powder, mixed after at 600-700 ℃ scaling loss 4-5 hour, after grind to form nanometer powder, admix and be equivalent to the octyl epoxy stearate of powder weight 1-2%, the dioctyl maleate agitating of 1-2% is even, dry, be ground into after powder, make modified Nano powder;
(2) take by weight ratio ground granulated blast furnace slag and gypsum, be uniformly mixed 2-3min under 700-1000rpm after adding appropriate water after, grind to obtain ground granulated blast furnace slag gypsum mixed slurry, add by weight ratio again aerated bricks to prepare required all the other raw materials and be uniformly mixed 3-5min under 2000-2800rpm, obtain mixed slurry;
Each raw material weight proportioning of described aerated bricks is:
Ground granulated blast furnace slag 35-40, cement 8-10, unslaked lime 10-15, modified Nano powder 5-10, hollow glass microbead 2-4, quartz sand 1-2, gypsum 3-5, aluminium powder 0.05-0.1, sodium lauryl sulphate 0.002-0.008, peregal 0.03-0.08, soda ash 0.1-0.3, Zinic stearas 0.8-0.9, attapulgite 0.3-0.5, aluminium hydroxide 0.01-0.03, micronized polyethylene alcohol micro mist 0.05-0.1, water are appropriate;
(3) gained mixed slurry is poured into the mold moulding, after at 40-50 ℃ precuring 1-3 hour, the demoulding, handling to cutting part cuts, and obtains fragment of brick base;
(4) fragment of brick base is put into reactor steam press maintenance, put in storage and get final product.
The preparation technology of the aerated bricks that described a kind of raw material contains fluorite slag, is characterized in that: the duration of described steaming pressuring curing process is 7-10 hour, and temperature is 170-180 ℃, and pressure is 1-1.3MPa.
The preparation technology of the aerated bricks that described a kind of raw material contains fluorite slag, is characterized in that: described blast-furnace slag powder fineness is 180 order-200 orders, and described hollow glass microbead fineness is 100-200 order, and described quartz sand fineness is 100-200 order.
Beneficial effect of the present invention is:
1, the present invention, by adopting waste material as the composition of aerated bricks, 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 aerated bricks 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 530-710kg/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 5.1-7.3MPa.
Embodiment
embodiment 1
A preparation technology for the aerated bricks that raw material contains fluorite slag, comprises the following steps:
(1) by 10kg calcium carbonate, 5kg fluorite slag, 2kg oyster shell whiting, 3kg volcano rock dust, 4kg colliery powder, mixed after at 700 ℃ scaling loss 4 hours, after grind to form nanometer powder, admix that to be equivalent to octyl epoxy stearate, 2% the dioctyl maleate agitating of powder weight 1% even, dry, be ground into after powder, make modified Nano powder;
(2) take by weight ratio ground granulated blast furnace slag and gypsum, be uniformly mixed 3min under 1000rpm after adding appropriate water after, grind to obtain ground granulated blast furnace slag gypsum mixed slurry, add by weight ratio again aerated bricks to prepare required all the other raw materials and be uniformly mixed 5min under 2000rpm, obtain mixed slurry;
Each raw material weight proportioning of described aerated bricks is (kg):
Ground granulated blast furnace slag 40, cement 10, unslaked lime 15, modified Nano powder 10, hollow glass microbead 2, quartz sand 1, gypsum 5, aluminium powder 0.1, sodium lauryl sulphate 0.008, peregal 0.08, soda ash 0.3, Zinic stearas 0.8, attapulgite 0.3, aluminium hydroxide 0.03, micronized polyethylene alcohol micro mist 0.1, water are appropriate;
(3) gained mixed slurry is poured into the mold moulding, after precuring 2 hours at 42 ℃, the demoulding, handling to cutting part cuts, and obtains fragment of brick base;
(4) fragment of brick base is put into reactor steam press maintenance, put in storage and get final product.
Described blast-furnace slag powder fineness is 180 orders, and described hollow glass microbead fineness is 100 orders, and described quartz sand fineness is 200 orders.
The average unit weight of this aerated bricks product is 640kg/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 6.1MPa.
embodiment 2
A preparation technology for the aerated bricks that raw material contains fluorite slag, comprises the following steps:
(1) by 12kg calcium carbonate, 4kg fluorite slag, 1kg oyster shell whiting, 3kg volcano rock dust, 6kg colliery powder, mixed after at 650 ℃ scaling loss 5 hours, after grind to form nanometer powder, admix that to be equivalent to octyl epoxy stearate, 2% the dioctyl maleate agitating of powder weight 2% even, dry, be ground into after powder, make modified Nano powder;
(2) take by weight ratio ground granulated blast furnace slag and gypsum, be uniformly mixed 3min under 1000rpm after adding appropriate water after, grind to obtain ground granulated blast furnace slag gypsum mixed slurry, add by weight ratio again aerated bricks to prepare required all the other raw materials and be uniformly mixed 5min under 2500rpm, obtain mixed slurry;
Each raw material weight proportioning (kg) of described aerated bricks is:
Ground granulated blast furnace slag 40, cement 10, unslaked lime 15, modified Nano powder 5, hollow glass microbead 4, quartz sand 1.5, gypsum 3.5, aluminium powder 0.05, sodium lauryl sulphate 0.002, peregal 0.03, soda ash 0.1, Zinic stearas 0.9, attapulgite 0.3, aluminium hydroxide 0.01, micronized polyethylene alcohol micro mist 0.05, water are appropriate;
(3) gained mixed slurry is poured into the mold moulding, after precuring 3 hours at 40 ℃, the demoulding, handling to cutting part cuts, and obtains fragment of brick base;
(4) fragment of brick base is put into reactor steam press maintenance, the duration of steaming pressuring curing process is 8 hours, and temperature is 180 ℃, and pressure is 1MPa, rear warehouse-in and get final product.Before maintenance, the heating-up time is 3 hours, and after maintenance, temperature fall time is 4 hours.
Described blast-furnace slag powder fineness is 180 orders, and described hollow glass microbead fineness is 200 orders, and described quartz sand fineness is 200 orders.
The average unit weight of this aerated bricks product is 610kg/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.