CN104193388A

CN104193388A - High-toughness aerated brick and preparation method thereof

Info

Publication number: CN104193388A
Application number: CN201410370194.4A
Authority: CN
Inventors: 吴美文
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-31
Filing date: 2014-07-31
Publication date: 2014-12-10
Anticipated expiration: 2034-07-31
Also published as: CN104193388B

Abstract

The invention relates to a high-toughness aerated brick which is prepared from the following raw materials in parts by weight: 11 to 12 parts of cement, 12 to 15 parts of quicklime, 6 to 9 parts of modified rice husk, 4 to 6 parts of gypsum, 55 to 60 parts of pulverized fuel ash, 1 to 2 parts of methylcellulose, 2 to 4 parts of zinc borate, 0.1 to 0.3 part of alpha-olefin sulfonate, 1 to 2 parts of ammonium bicarbonate, 2 to 4 parts of silica fume, 3 to 4 parts of polyester superfine fibers, 0.5 to 1 part of p-toluenesulfonhydrazide, 2 to 3 parts of phenoxyethanol, 3 to 4 parts of aerated aluminum powder, 1 to 2 parts of sodium bicarbonate, 1 to 2 parts of anhydrite, 1 to 2 parts of high-alumina clinker and a proper amount of water. The strength, the toughness and the abrasion resistance of the aerated brick are enhanced due to the added polyester superfine fibers; meanwhile, the aerated brick can generate uniform and discontinuous foams, so that the aerated brick is good in heat preservation and sound insulation; in addition, the aerated brick is excellent in corrosion resistance and fire prevention, light in weight and good in earthquake resistance; and the weight of the aerated brick is reduced, the earthquake resistance of the aerated brick is enhanced and the good water resistance and the good water reducing effect are realized due to the adoption of the modified rice husk.

Description

A kind of high tenacity aerated bricks and preparation method thereof

Technical field

The invention belongs to brick field, relate in particular to a kind of high tenacity aerated bricks and preparation method thereof.

Background technology

Aerated bricks is also called air-entrained concrete building block, application very extensively, be mainly used in load-bearing walling and non-bearing material and the filling enclosure walls around such as materials for wall, infilled wall, floor and roof boarding in mechanical factory building and covil construction.

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

That aerated bricks has is 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 be according to the different starting material in locality, different condition is carried out amount body and is surely made, starting material wide material sources, can select river sand, flyash, ore in sand form etc., 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, the requirements such as intensity to aerated bricks, density, shrinkage value, frost resistance all increase, improving constantly along with people's living standard in addition, requirement to environment is also more and more higher, and the heat-insulating property to buildings, sound absorption qualities, radioactivity have higher requirement, even requires buildings to have the performance of body health benefits, therefore as required, develop the aerated bricks of excellent performance more imperative.

Summary of the invention

The object of the present invention is to provide a kind of high tenacity aerated bricks and preparation method thereof, this aerated bricks intensity is high, good toughness, and wear resistance is good, and heat retaining property is good, and soundproof effect is good, also has excellent erosion resistance and fire resistance.

Technical scheme of the present invention is as follows:

A kind of high tenacity aerated bricks, is characterized in that being made up of the raw material of following weight part: cement 11-12, unslaked lime 12-15, modification rice husk 6-9, gypsum 4-6, flyash 55-60, methylcellulose gum 1-2, zinc borate 2-4, α-sodium olefin sulfonate 0.1-0.3, bicarbonate of ammonia 1-2, silicon ash 2-4, dacron ultrafine fiber 3-4, p-toluene sulfonyl hydrazide 0.5-1, Phenoxyethanol 2-3, aerating aluminium powder 3-4, sodium bicarbonate 1-2, anhydrite 1-2, high alumina 1-2, water are appropriate;

Described modification rice husk is made up of the raw material of following weight part: rice husk 13-15, S-WAT 0.5-0.7, far infrared ceramic powder 1-2, allyl oenanthate 0.5-0.7, glyoxal ethyline 0.1-0.2, aromatic urethane acrylate 1-2, Hydroxyethyl acrylate 1-2, high-efficiency water-reducing agent of poly-carboxylic acid 1-2, glass powder 1-2, ammonium persulphate 0.01-0.02, alginate calcium 0.4-0.7, nepheline powder 1-2, three red oily 0.5-0.7, sewer oil 2-3; Making method is: powdered rice hulls is broken into 50-100 order particle, sprays into while stirring three red oil, sewer oil, mix rear placement 5-7 hour, then mix with other remaining components, be heated to 75-80 DEG C, dispersion grinding 30-40 minute, to obtain final product.

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

(1) cement, unslaked lime, gypsum, flyash are mixed, send into grinding in ball grinder and become 50-100 order particle, then mix with the composition except aerating aluminium powder, be that 0.56-0.57 adds water by ratio of water to material, stir, then add aerating aluminium powder, stir and obtain slurry;

(2) slurry (1) step being obtained is poured in mould, obtains brick idiosome;

(3) brick idiosome is put into steam-cured still and vacuumize, then in 1.7-1.9 hour, pass into equably steam, make steam-cured indoor temperature rise to 170-180 DEG C, pressure reaches 11-13MPa, keeps constant 9-12 hour;

(4) in 1.7-1.9 hour, let off steam equably, steam-cured indoor temperature is down to below 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 is by using dacron ultrafine fiber, intensity, toughness and the wear resistance of aerated bricks are increased, this aerated bricks bubble is evenly discontinuous simultaneously, therefore heat retaining property is good, soundproof effect good, and this aerated bricks also has excellent erosion resistance and fire resistance, quality is light, and anti-seismic performance is good; By using modification rice husk, strengthen and alleviated weight, increase anti-seismic performance, water-tolerant, water-reducing effect is good simultaneously.

Embodiment

A kind of high tenacity aerated bricks, by following weight part (kilogram) raw material make: cement 11, unslaked lime 14, modification rice husk 8, gypsum 5, flyash 58, methylcellulose gum 1.5, zinc borate 3, α-sodium olefin sulfonate 0.2, bicarbonate of ammonia 1.5, silicon ash 3, dacron ultrafine fiber 3.5, p-toluene sulfonyl hydrazide 0.8, Phenoxyethanol 2.5, aerating aluminium powder 3.5, sodium bicarbonate 1.5, anhydrite 1.5, high alumina 1.5, water are appropriate;

Described modification rice husk by following weight part (kilogram) raw material make: rice husk 14, S-WAT 0.6, far infrared ceramic powder 1.6, allyl oenanthate 0.6, glyoxal ethyline 0.1, aromatic urethane acrylate 1.5, Hydroxyethyl acrylate 1.5, high-efficiency water-reducing agent of poly-carboxylic acid 1.5, glass powder 1.5, ammonium persulphate 0.01, alginate calcium 0.6, nepheline powder 1.6, three red oil 0.6, sewer oil 2.6; Making method is: powdered rice hulls is broken into 80 order particles, sprays into while stirring three red oil, sewer oil, mix rear placement 6 hours, then mix with other remaining components, be heated to 77 DEG C, dispersion grinding 35 minutes, to obtain final product.

(1) cement, unslaked lime, gypsum, flyash being mixed, send into grinding in ball grinder and become 80 order particles, then mix with the composition except aerating aluminium powder, is 0.56 to add water by ratio of water to material, stirs, then adds aerating aluminium powder, stirs and obtains slurry;

(2) slurry (1) step being obtained is poured in mould, obtains brick idiosome;

(3) brick idiosome is put into steam-cured still and vacuumize, then in 1.8 hours, pass into equably steam, make steam-cured indoor temperature rise to 175 DEG C, pressure reaches 12MPa, keeps constant 10 hours;

(4) in 1.8 hours, let off steam equably, make steam-cured indoor temperature be down to 70 DEG C, go out still, place 29 days and get final product.

Experimental data:

The density of this aerated bricks is 600kg/m3, refractory temperature is 680 DEG C, thermal conductivity is 0.09W/(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 spray degree of depth that seeps water after 72 hours is 70mm, and ultimate compression strength is 7.8Mpa, sound absorption coefficient 0.45.

Claims

1. a high tenacity aerated bricks, is characterized in that being made up of the raw material of following weight part: cement 11-12, unslaked lime 12-15, modification rice husk 6-9, gypsum 4-6, flyash 55-60, methylcellulose gum 1-2, zinc borate 2-4, α-sodium olefin sulfonate 0.1-0.3, bicarbonate of ammonia 1-2, silicon ash 2-4, dacron ultrafine fiber 3-4, p-toluene sulfonyl hydrazide 0.5-1, Phenoxyethanol 2-3, aerating aluminium powder 3-4, sodium bicarbonate 1-2, anhydrite 1-2, high alumina 1-2, water are appropriate;

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

(2) slurry (1) step being obtained is poured in mould, obtains brick idiosome;