CN104058644A - Corrosion-resisting autoclaved aerated concrete block - Google Patents

Abstract

The invention discloses corrosion-resisting autoclaved aerated concrete block. The corrosion-resisting autoclaved aerated concrete block is prepared from the following materials in parts by weight: 10-20 parts of cement, 35-50 parts of diatomite, 0.15-0.2 part of zinc powder, 3-5 parts of aluminum chloride, 0.2-0.4 part of potassium hydroxide, 0.3-0.6 part of caustic soda, 0.5-0.8 part of calcium chloride, 0.1-0.2 part of calcium hydroxide, 0.4-0.8 part of coconut oil fatty acid glycollic diamide, 0.1-0.2 part of polypropylene fiber, 18-30 parts of fluorgypsum and 10-20 parts of modified filler. The corrosion-resisting autoclaved aerated concrete block disclosed by the invention is reasonable in dosing, good in thermal-insulation effect and light in weight; and meanwhile, the chemical acid and alkaline resistance is strong.

Description

A kind of corrosion-resistant aerated bricks

Technical field

The present invention relates to aerated bricks field, is exactly a kind of corrosion-resistant aerated bricks.

Background technology

Aerated bricks, refers to the air-entrained concrete building block of producing by autoclave at high temperature apparatus and process, and existing aerated bricks kind is single, and poor performance cannot meet the market requirement day by day increasing.

Summary of the invention

The object of the present invention is to provide a kind of corrosion-resistant aerated bricks.

Above-mentioned purpose realizes by following scheme:

A corrosion-resistant aerated bricks, is characterized in that: it is that raw material by following weight parts makes:

Cement 10-20, diatomite 35-50, zinc powder 0.15-0.2, aluminum chloride 3-5, potassium hydroxide 0.2-0.4, caustic soda 0.3-0.6, calcium chloride 0.5-0.8, calcium hydroxide 0.1-0.2, cocoanut fatty acid diethanolamide 0.4-0.8, polypropylene fibre 0.1-0.2, fluorgypsum 18-30, modified filler 10-20;

Described modified filler is made by the raw material of following weight parts: attapulgite 15-18, iron ore tailings 15-18, carbide slag 10-18, sodium-acetate 1-2, diatomite 1-2, anhydrous sodium acetate 1-2, gelatin 0.2-0.4, Vanay 1-2, isomery polyoxyethylenated alcohol 0.5-0.6, silane coupling agent KH792 2-4;

The preparation method of described modified filler is:

After power taking rock ballast, iron ore tailings mix, fragmentation, gained powder dodges burning 4-6 second in dodging firing at 940-980 ℃, take out again cooling, after mixing with attapulgite, gelatin, Vanay and suitable quantity of water, three-roll grinder grinds 30-50 minute, and the hydrochloric acid soln tune PH that taking-up adds 8-15% is 5-6.5, add again diatomite, ground slurry is to 400-500 order, and repeated hydrogenation sodium hydroxide solution is adjusted to neutrality, and spraying is dry, gained powder mixes with other surplus stock, mixes and get final product.

Described a kind of corrosion-resistant aerated bricks, is characterized in that:

Preparation method is:

(1) by other raw material blending except cement, zinc powder, calcium chloride, polypropylene fibre, add suitable quantity of water, after stirring, then add cement, zinc powder, calcium chloride, polypropylene fibre at 30-35 ℃, stir 12-15 minute, obtain mixed cement slurry;

(2) mixed cement slurry is poured into the mold moulding, after at 42-45 ℃ precuring 3.3-4 hour, the demoulding, cutting, after steam press maintenance, obtains.

Beneficial effect of the present invention is: the present invention prepares burden rationally, high insulating effect, and quality is light, and chemically-resistant acid and alkali corrosion ability is strong simultaneously.

Embodiment

A corrosion-resistant aerated bricks, it is that raw material by following weight kg makes:

Cement 12, diatomite 35, zinc powder 0.15, aluminum chloride 5, potassium hydroxide 0.4, caustic soda 0.6, calcium chloride 0.8, calcium hydroxide 0.1, cocoanut fatty acid diethanolamide 0.6, polypropylene fibre 0.2, fluorgypsum 19, modified filler 15;

Described modified filler is made by the raw material of following weight kg: attapulgite 15, iron ore tailings 18, carbide slag 12, sodium-acetate 2, diatomite 2, anhydrous sodium acetate 1.65, gelatin 0.4, Vanay 1, isomery polyoxyethylenated alcohol 0.5, silane coupling agent KH792 2;

The preparation method of described modified filler is:

After power taking rock ballast, iron ore tailings mix, fragmentation, gained powder dodges burning 5 seconds in dodging firing at 940 ℃, take out again cooling, after mixing with attapulgite, gelatin, Vanay and suitable quantity of water, three-roll grinder grinds 30 minutes, takes out to add 15% hydrochloric acid soln to adjust PH be 6, add again diatomite, ground slurry is to 400-500 order, and repeated hydrogenation sodium hydroxide solution is adjusted to neutrality, and spraying is dry, gained powder mixes with other surplus stock, mixes and get final product.

Described a kind of corrosion-resistant aerated bricks,

Preparation method is:

(1) by other raw material blending except cement, zinc powder, calcium chloride, polypropylene fibre, add suitable quantity of water, after stirring, then add cement, zinc powder, calcium chloride, polypropylene fibre at 35 ℃, stir 15 minutes, obtain mixed cement slurry;

(2) mixed cement slurry is poured into the mold moulding, after precuring 3.7 hours at 45 ℃, the demoulding, cutting, after steam press maintenance, obtains.

The average unit weight of the present embodiment gained aerated bricks is 620kg/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 7.6.

Claims (2)

1. a corrosion-resistant aerated bricks, is characterized in that: it is that raw material by following weight parts makes:

Cement 10-20, diatomite 35-50, zinc powder 0.15-0.2, aluminum chloride 3-5, potassium hydroxide 0.2-0.4, caustic soda 0.3-0.6, calcium chloride 0.5-0.8, calcium hydroxide 0.1-0.2, cocoanut fatty acid diethanolamide 0.4-0.8, polypropylene fibre 0.1-0.2, fluorgypsum 18-30, modified filler 10-20;

Described modified filler is made by the raw material of following weight parts: attapulgite 15-18, iron ore tailings 15-18, carbide slag 10-18, sodium-acetate 1-2, diatomite 1-2, anhydrous sodium acetate 1-2, gelatin 0.2-0.4, Vanay 1-2, isomery polyoxyethylenated alcohol 0.5-0.6, silane coupling agent KH792 2-4;

The preparation method of described modified filler is:

After power taking rock ballast, iron ore tailings mix, fragmentation, gained powder dodges burning 4-6 second in dodging firing at 940-980 ℃, take out again cooling, after mixing with attapulgite, gelatin, Vanay and suitable quantity of water, three-roll grinder grinds 30-50 minute, and the hydrochloric acid soln tune PH that taking-up adds 8-15% is 5-6.5, add again diatomite, ground slurry is to 400-500 order, and repeated hydrogenation sodium hydroxide solution is adjusted to neutrality, and spraying is dry, gained powder mixes with other surplus stock, mixes and get final product.

2. a kind of corrosion-resistant aerated bricks according to claim 1, is characterized in that:

Preparation method is:

(1) by other raw material blending except cement, zinc powder, calcium chloride, polypropylene fibre, add suitable quantity of water, after stirring, then add cement, zinc powder, calcium chloride, polypropylene fibre at 30-35 ℃, stir 12-15 minute, obtain mixed cement slurry;

(2) mixed cement slurry is poured into the mold moulding, after at 42-45 ℃ precuring 3.3-4 hour, the demoulding, cutting, after steam press maintenance, obtains.