CN104446295A - Humid-environment-resistance autoclaved aerated concrete block and preparation method thereof - Google Patents

Abstract

The invention provides a humid-environment-resistance autoclaved aerated concrete block and a preparation method thereof. The block is prepared from the following raw materials in parts by weight: 0.2-0.4 part of sodium carboxymethyl cellulose, 1-2 parts of epoxy resin, 0.4-0.7 part of ethylenediamine, 0.6-0.9 part of sodium abietate, 0.4-0.6 part of decabromodiphenyl ether, 0.3-0.5 part of cationic starch, 4-6 parts of portland cement, 4-5 parts of sulfate aluminum cement, 5-7 parts of quartz sand, 0.2-0.4 part of sodium gluconate, 5-7 parts of waste asphalt particles, 50-60 parts of pulverized fuel ash, 6-7 parts of autoclaved aerated aluminum powder, 11-13 parts of quicklime, 9-11 parts of modified coal ash and a proper amount of water. The autoclaved aerated concrete block has fine, dense and non-continuous foams, good water resistance, good heat and sound insulation effect, high strength and good fire resistance, is suitable for a humid environment, is prevented from humidity from returning, and is capable of resisting corrosion; by using the modified coal ash, the heat insulation effect is reinforced, the water resistance is good, the environmental pollution is reduced, and the water reducing effect is good.

Description

A kind of humidity environment aerated bricks and preparation method thereof

Technical field

The invention belongs to brick field, particularly relate to a kind of humidity environment 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 humidity environment aerated bricks and preparation method thereof, this aerated bricks bubble is fine and closely woven discontinuous, water-tolerant, heat insulation, soundproof effect good, and intensity is high, resistivity against fire is good, is suitable for wet environment, not easily gets damp, corrosion-resistant.

Technical scheme of the present invention is as follows:

A kind of humidity environment aerated bricks, is characterized in that being made up of the raw material of following weight part: Xylo-Mucine 0.2-0.4, epoxy resin 1-2, quadrol 0.4-0.7, sodium abietate 0.6-0.9, decabromodiphynly oxide 0.4-0.6, cationic starch 0.3-0.5, silicate cement 4-6, aluminosulfate cement 4-5, quartz sand 5-7, Sunmorl N 60S 0.2-0.4, waste asphalt particle 5-7, gypsum 5-6, flyash 50-60, aerating aluminium powder 6-7, unslaked lime 11-13, modified coal 9-11, water are appropriate;

Described modified coal is made up of the raw material of following weight part: coal ash 13-15, lithium silicate 0.5-0.7, magnesium silicofluoride 1-2, aluminum stearate 0.5-0.7, sugared calcium 0.5-0.8, glycidyl methacrylate 0.5-0.7, Diisopropyl azodicarboxylate 0.1-0.2, acrylate 1-1.3, tea seed cake 1-2, multicellular glass powder 1-2, high-efficiency water-reducing agent of poly-carboxylic acid 2-3, kautschin 0.4-0.7, flyash 2-4, calcium sulfite 0.5-0.7, used oil 2-3; Making method is: coal ash, tea seed cake powder are broken into 100-200 order particle, spray into kautschin, used oil, aluminum stearate while stirring, mixes rear placement 5-7 hour, mix with other remaining components again, be heated to 75-80 DEG C, dispersion grinding 30-40 minute, obtain final product.

The preparation method of described humidity environment aerated bricks, is characterized in that comprising the following steps:

(1) by silicate cement, aluminosulfate cement, unslaked lime, waste asphalt particle, gypsum, quartz sand, 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 9-12 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 bubble of the present invention is fine and closely woven discontinuous, water-tolerant, heat insulation, soundproof effect good, and intensity is high, resistivity against fire is good, is suitable for wet environment, not easily gets damp, corrosion-resistant; By using modified coal, enhancing effect of heat insulation, water-tolerant, decreasing environmental pollution, water-reducing effect is good simultaneously.

Embodiment

A kind of humidity environment aerated bricks, is made up of the raw material of following weight part (kilogram): Xylo-Mucine 0.3, epoxy resin 1.5, quadrol 0.5, sodium abietate 0.7, decabromodiphynly oxide 0.5, cationic starch 0.4, silicate cement 5, aluminosulfate cement 4.5, quartz sand 6, Sunmorl N 60S 0.3, waste asphalt particle 6, gypsum 5.5, flyash 55, aerating aluminium powder 6.5, unslaked lime 12, modified coal 10, water are appropriate;

Described modified coal is made up of the raw material of following weight part (kilogram): coal ash 14, lithium silicate 0.6, magnesium silicofluoride 1.5, aluminum stearate 0.6, sugared calcium 0.6, glycidyl methacrylate 0.6, Diisopropyl azodicarboxylate 0.1, acrylate 1.2, tea seed cake 1.5, multicellular glass powder 1.5, high-efficiency water-reducing agent of poly-carboxylic acid 2.5, kautschin 0.6, flyash 3, calcium sulfite 0.6, used oil 2.6; Making method is: coal ash, tea seed cake powder are broken into 160 order particles, spray into kautschin, used oil, aluminum stearate while stirring, mix rear placement 6 hours, then mix with other remaining components, be heated to 78 DEG C, dispersion grinding 36 minutes, to obtain final product.

The preparation method of described humidity environment aerated bricks, comprises the following steps:

(1) by silicate cement, aluminosulfate cement, unslaked lime, waste asphalt particle, gypsum, quartz sand, 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 28 days and get final product.

Experimental data:

The density of this aerated bricks is 67kg/m3, refractory temperature is 700 DEG C, thermal conductivity is 0.15W/(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 60mm, and ultimate compression strength is 7Mpa, sound absorption coefficient 0.38.

Claims (2)

1. a humidity environment aerated bricks, is characterized in that being made up of the raw material of following weight part: Xylo-Mucine 0.2-0.4, epoxy resin 1-2, quadrol 0.4-0.7, sodium abietate 0.6-0.9, decabromodiphynly oxide 0.4-0.6, cationic starch 0.3-0.5, silicate cement 4-6, aluminosulfate cement 4-5, quartz sand 5-7, Sunmorl N 60S 0.2-0.4, waste asphalt particle 5-7, gypsum 5-6, flyash 50-60, aerating aluminium powder 6-7, unslaked lime 11-13, modified coal 9-11, water are appropriate;

Described modified coal is made up of the raw material of following weight part: coal ash 13-15, lithium silicate 0.5-0.7, magnesium silicofluoride 1-2, aluminum stearate 0.5-0.7, sugared calcium 0.5-0.8, glycidyl methacrylate 0.5-0.7, Diisopropyl azodicarboxylate 0.1-0.2, acrylate 1-1.3, tea seed cake 1-2, multicellular glass powder 1-2, high-efficiency water-reducing agent of poly-carboxylic acid 2-3, kautschin 0.4-0.7, flyash 2-4, calcium sulfite 0.5-0.7, used oil 2-3; Making method is: coal ash, tea seed cake powder are broken into 100-200 order particle, spray into kautschin, used oil, aluminum stearate while stirring, mixes rear placement 5-7 hour, mix with other remaining components again, be heated to 75-80 DEG C, dispersion grinding 30-40 minute, obtain final product.

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

(1) by silicate cement, aluminosulfate cement, unslaked lime, waste asphalt particle, gypsum, quartz sand, 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 9-12 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.