CN104446609A - Anti-seepage aerated brick and preparation method thereof - Google Patents

Abstract

The invention relates to an anti-seepage aerated brick. The anti-seepage aerated brick is prepared from the following raw materials in parts by weight: 0.4-0.6 part of a styrene-butadiene-styrene block copolymer, 4-6 parts of micro-silicon powder, 0.8-1.3 parts of maleic anhydride graft modified polyolefin, 0.2-0.4 part of polyolefin, 7-9 parts of gypsum, 50-60 parts of fly ash, 2-3 parts of magnesium oxide, 6-7 parts of aerated aluminum powder, 9-11 parts of cement, 6-8 parts of quartz tailings, 9-11 parts of quicklime, 8-10 parts of modified walnut shells, 1-2 parts of powdery sodium silicate, 0.01-0.02 part of tung oil anhydride and an appropriate amount of water. By adding micro-silicon powder, magnesium oxide and powdery sodium silicate into the aerated brick, the compactness and water resistance of the aerated brick are increased so that the aerated brick is applicable to a humid environment and the service life of the aerated brick is twice as long as that of the conventional aerated brick; by adding the modified walnut shells, the thermal-insulation effect is enhanced, good water resistance and water-reducing effect are achieved, the weight is reduced and the anti-seismic property is increased.

Description

A kind of water-impervious aerated bricks and preparation method thereof

Technical field

The invention belongs to brick field, particularly relate to a kind of water-impervious aerated bricks and preparation method thereof.

Background technology

Aerated bricks is also called air-entrained concrete building block, application very extensive, is mainly used in the load-bearing wallings such as the materials for wall in machinery plant and covil construction, infilled wall, floor and roof boarding and non-bearing material and filling enclosure wall around.

Current aerated bricks has become the leading product of building material industry, and country progressively prohibits the use clay solid brick, is instead exactly air-entrained concrete building block gradually, autoclaved brick.

Aerated bricks have lightweight, thermal and insulating performance good, shock resistance is strong, good processability, have certain high thermal resistance, good, the adaptable feature of sound-proofing properties, can according to the different starting material in locality, different condition is carried out amount body and is surely made, raw material sources is extensive, river sand, flyash, ore in sand form etc. can be selected, suit measures to local conditions, can be salvaged, environmental, really turn waste into wealth.

But along with the development of building trade, buildings is more and more higher, moulding is more and more peculiar, require all to increase to the intensity, density, shrinkage value, frost resistance etc. of aerated bricks, improving constantly in addition along with people's living standard, also more and more higher to the requirement of environment, there is higher requirement to the heat-insulating property of buildings, sound absorption qualities, radioactivity, even require that buildings has the performance of body health benefits, therefore as required, the aerated bricks developing excellent performance is more imperative.

Summary of the invention

The object of the present invention is to provide a kind of water-impervious aerated bricks and preparation method thereof, this aerated bricks is fine and close, and good waterproof performance, is applicable to wet environment, than common aerated bricks long service life one times.

Technical scheme of the present invention is as follows:

A kind of water-impervious aerated bricks, is characterized in that being made up of the raw material of following weight part: styrene-butadiene-styrene block copolymer 0.4-0.6, SILICA FUME 4-6, modified by maleic acid anhydride graft polyolefine 0.8-1.3, polyolefine 0.2-0.4, gypsum 7-9, flyash 50-60, magnesium oxide 2-3, aerating aluminium powder 6-7, cement 9-11, quartz tail sand 6-8, unslaked lime 9-11, modification nut-shell 8-10, Powdered water glass 1-2, tung oil acid anhydride 0.01-0.02, water are appropriate;

1, a water-impervious aerated bricks, is characterized in that being made up of the raw material of following weight part: styrene-butadiene-styrene block copolymer 0.4-0.6, SILICA FUME 4-6, modified by maleic acid anhydride graft polyolefine 0.8-1.3, polyolefine 0.2-0.4, gypsum 7-9, flyash 50-60, magnesium oxide 2-3, aerating aluminium powder 6-7, cement 9-11, quartz tail sand 6-8, unslaked lime 9-11, modification nut-shell 8-10, Powdered water glass 1-2, tung oil acid anhydride 0.01-0.02, water are appropriate;

Described modification nut-shell is made up of the raw material of following weight part: nut-shell 14-17, slag wool 1-2, water glass 0.2-0.3, gas phase aluminium sesquioxide 0.4-0.5, SULPHUR POWDER 0.2-0.3, epoxy acrylate 0.8-1, vinyl cyanide 0.3-0.5, Rizinsan K2 A2 0.2-0.3, trolamine 0.1-0.2, SILICA FUME 1-2, multicellular glass powder 1-2, high-efficiency water-reducing agent of poly-carboxylic acid 2-3, ammonium persulphate 0.08-0.1, sewer oil 2-3; Making method is: walnut shell flour is broken into 100-200 order particle, spray into Rizinsan K2 A2, sewer oil while stirring, mix rear placement 2-3 hour, mix with slag wool, water glass, gas phase aluminium sesquioxide, SULPHUR POWDER, epoxy acrylate, vinyl cyanide, SILICA FUME, multicellular glass powder again, be heated to 75-80 DEG C, add other remaining components again, dispersion grinding 30-40 minute, to obtain final product.

The preparation method of described water-impervious aerated bricks, is characterized in that comprising the following steps:

(1) by cement, quartz tail sand, unslaked lime, magnesium oxide, SILICA FUME, gypsum, flyash mixing, send into grinding in ball grinder and become 100-200 order particle, mix with the composition except aerating aluminium powder again, be that 0.57-0.58 adds water by ratio of water to material, stir, add aerating aluminium powder again, stir and obtain slurry;

(2) slurry that (1) step obtains is poured in mould, obtain brick idiosome;

(3) brick idiosome is put into steam-cured still to vacuumize, then in 1.7-1.9 hour, pass into steam equably, make the temperature of steam-cured indoor rise to 170-180 DEG C, pressure reaches 11-13MPa, keeps constant 10-11 hour;

(4) let off steam equably in 1.7-1.9 hour, make the temperature of steam-cured indoor be down to less than 70 DEG C, go out still, place 28-30 days and get final product.

Beneficial effect of the present invention

Aerated bricks of the present invention, by using SILICA FUME, magnesium oxide, Powdered water glass, adds compactness and the water-repellancy of aerated bricks, is applicable to wet environment, than common aerated bricks long service life one times; By using modification nut-shell, enhancing effect of heat insulation, water-tolerant, alleviating weight, adding anti-seismic performance, water-reducing effect is good simultaneously.

Embodiment

A kind of water-impervious aerated bricks, is made up of the raw material of following weight part (kilogram): styrene-butadiene-styrene block copolymer 0.5, SILICA FUME 5, modified by maleic acid anhydride graft polyolefine 1.1, polyolefine 0.3, gypsum 8, flyash 55, magnesium oxide 2.5, aerating aluminium powder 6.4, cement 10, quartz tail sand 7, unslaked lime 10, modification nut-shell 9, Powdered water glass 1.4, tung oil acid anhydride 0.01, water are appropriate;

Described modification nut-shell is made up of the raw material of following weight part (kilogram): nut-shell 15, slag wool 1.5, water glass 0.2, gas phase aluminium sesquioxide 0.5, SULPHUR POWDER 0.3, epoxy acrylate 0.9, vinyl cyanide 0.4, Rizinsan K2 A2 0.2, trolamine 0.2, SILICA FUME 1.5, multicellular glass powder 1.5, high-efficiency water-reducing agent of poly-carboxylic acid 2.5, ammonium persulphate 0.09, sewer oil 2.5; Making method is: powdered rice hulls is broken into 160 order particles, spray into Rizinsan K2 A2, sewer oil while stirring, mix rear placement 2.5 hours, mix with slag wool, water glass, gas phase aluminium sesquioxide, SULPHUR POWDER, epoxy acrylate, vinyl cyanide, SILICA FUME, multicellular glass powder again, be heated to 78 DEG C, add other remaining components again, dispersion grinding 35 minutes, to obtain final product.

The preparation method of described water-impervious aerated bricks, comprises the following steps:

(1) by cement, quartz tail sand, unslaked lime, magnesium oxide, SILICA FUME, gypsum, flyash mixing, send into grinding in ball grinder and become 160 order particles, mix with the composition except aerating aluminium powder again, be 0.57 add water by ratio of water to material, stir, add aerating aluminium powder again, stir and obtain slurry;

(2) slurry that (1) step obtains is poured in mould, obtain brick idiosome;

(3) brick idiosome is put into steam-cured still to vacuumize, then in 1.8 hours, pass into steam equably, make the temperature of steam-cured indoor rise to 175 DEG C, pressure reaches 12MPa, keeps constant 11 hours;

(4) let off steam equably in 1.8 hours, make the temperature of steam-cured indoor be down to 70 DEG C, go out still, place 30 days and get final product.

Experimental data:

The density of this aerated bricks is 630kg/m3, refractory temperature is 670 DEG C, thermal conductivity is 0.13W/(m DEG C), adopt showerhead respectively to the thick clay tile wall of 240mm and aerating brick wall spray, clay tile wall all soaked into after 12 hours, the aerating brick wall degree of depth that seeps water after spraying 72 hours is 40mm, and ultimate compression strength is 6.3Mpa, sound absorption coefficient 0.35.

Claims (2)

1. a water-impervious aerated bricks, is characterized in that being made up of the raw material of following weight part: styrene-butadiene-styrene block copolymer 0.4-0.6, SILICA FUME 4-6, modified by maleic acid anhydride graft polyolefine 0.8-1.3, polyolefine 0.2-0.4, gypsum 7-9, flyash 50-60, magnesium oxide 2-3, aerating aluminium powder 6-7, cement 9-11, quartz tail sand 6-8, unslaked lime 9-11, modification nut-shell 8-10, Powdered water glass 1-2, tung oil acid anhydride 0.01-0.02, water are appropriate;

Described modification nut-shell is made up of the raw material of following weight part: nut-shell 14-17, slag wool 1-2, water glass 0.2-0.3, gas phase aluminium sesquioxide 0.4-0.5, SULPHUR POWDER 0.2-0.3, epoxy acrylate 0.8-1, vinyl cyanide 0.3-0.5, Rizinsan K2 A2 0.2-0.3, trolamine 0.1-0.2, SILICA FUME 1-2, multicellular glass powder 1-2, high-efficiency water-reducing agent of poly-carboxylic acid 2-3, ammonium persulphate 0.08-0.1, sewer oil 2-3; Making method is: walnut shell flour is broken into 100-200 order particle, spray into Rizinsan K2 A2, sewer oil while stirring, mix rear placement 2-3 hour, mix with slag wool, water glass, gas phase aluminium sesquioxide, SULPHUR POWDER, epoxy acrylate, vinyl cyanide, SILICA FUME, multicellular glass powder again, be heated to 75-80 DEG C, add other remaining components again, dispersion grinding 30-40 minute, to obtain final product.

2. the preparation method of water-impervious aerated bricks according to claim 1, is characterized in that comprising the following steps:

(1) by cement, quartz tail sand, unslaked lime, magnesium oxide, SILICA FUME, gypsum, flyash mixing, send into grinding in ball grinder and become 100-200 order particle, mix with the composition except aerating aluminium powder again, be that 0.57-0.58 adds water by ratio of water to material, stir, add aerating aluminium powder again, stir and obtain slurry;

(2) slurry that (1) step obtains is poured in mould, obtain brick idiosome;

(3) brick idiosome is put into steam-cured still to vacuumize, then in 1.7-1.9 hour, pass into steam equably, make the temperature of steam-cured indoor rise to 170-180 DEG C, pressure reaches 11-13MPa, keeps constant 10-11 hour;

(4) let off steam equably in 1.7-1.9 hour, make the temperature of steam-cured indoor be down to less than 70 DEG C, go out still, place 28-30 days and get final product.