CN103449764A - Heat-resistant aerated brick - Google Patents

Abstract

The invention discloses a heat-resistant aerated brick which is prepared from the following raw materials in parts by weight: 0.001-0.002 part of sodium diacetate, 14-17 parts of river sand, 0.01-0.02 part of yttrium oxide, 10-18 parts of lime, 6-8 parts of cement, 1-2 parts of plaster, 0.08-0.12 part of aluminum powder, 10-12 parts of diatomite, 0.001-0.004 part of potassium persulfate, 0.01-0.03 part of poly(ethylene glycol) acrylate, 0.1-0.2 part of methyl acrylate, 3-5 parts of coal slags, 3-5 parts of dry straws, 8-10 parts of fly ash, 0.01-0.02 part of aluminum sulfate, 0.002-0.004 part of nekal, 0.04-0.06 part of magnesium powder, and 0.01-0.03 part of rapeseed cake powder.

Description

A kind of heat-resisting aerated bricks

Technical field

The present invention relates to the aerated bricks field, is exactly a kind of heat-resisting aerated bricks.

Background technology

Aerated bricks is the air-entrained concrete building block of producing by the autoclave at high temperature apparatus and process." aerated bricks " can be understood as a simplification or a general title.Its product scope contained should more greatly, adopt the brick product of other various explained hereafter that comprise steam pressure.

Construction market materials for wall used was mainly common brick in the past, and present many advanced areas have been completely forbidden common brick and used.

Existing aerated bricks Development Technology is slow, can't meet the market requirement of diversification.

Summary of the invention

The object of the present invention is to provide a kind of heat-resisting aerated bricks.

Above-mentioned purpose realizes by following scheme:

A kind of heat-resisting aerated bricks, it is characterized in that: it is that raw material by following weight parts makes: sodium Diacetate 0.001-0.002, river sand 14-17, yttrium oxide 0.01-0.02, lime 10-18, cement 6-8, gypsum 1-2, aluminium powder 0.08-0.12, diatomite 10-12, Potassium Persulphate 0.001-0.004, polyethylene glycol acrylate 0.01-0.03, methyl acrylate 0.1-0.2, cinder 3-5, dry straw 3-5, flyash 8-10, Tai-Ace S 150 0.01-0.02, pull open powder 0.002-0.004, magnesium powder 0.04-0.06, coarse colza meal 0.01-0.03.

Described a kind of heat-resisting aerated bricks is characterized in that:

The preparation method is:

(1) flyash, river sand, lime, cement, gypsum, dry straw are mixed by weight, calcining 2-4 hour under 500-600 ℃, take out, cooling, add in the hydrochloric acid soln that concentration is 8-10% and soak 8-10 hour, take out, dry, be equivalent to the Tritolyl Phosphate of its weight 1.5-2.6%, the zinc naphthenate of 2-3%, the Resorcinol of 1-2% and appropriate water, after stirring, take out, the sodium hydroxide solution that to put into concentration be 8-10% again soaks 8-10 hour, take out, dry, grind, cross the 100-200 mesh sieve, obtain mixed and modified powder standby;

(2) after getting by weight cinder, flyash and mixing, under 700-900 ℃, calcining is after 2-3 hour, cooling, grind, cross the 60-100 mesh sieve, soak 8-10 hour in the acetic acid solution that is 2-4% in concentration, after taking-up, deionized water wash, dry, grind, cross the 100-200 mesh sieve, then mix by weight with mixed and modified powder, add again all the other raw materials, and suitable quantity of water, under room temperature, stir 10-20 minute under 100-150 rev/min, obtain mixed slurry;

(3) the gained mixed slurry is poured into the mold moulding, after at 43-48 ℃ of lower precuring 3-5 hour, the demoulding, handling to cutting part cuts, and obtains the building block base;

(4) the building block base is put into to the reactor steam press maintenance, put finished product in storage and get final product.

Beneficial effect of the present invention is: the present invention compares with existing autoclave aerated concrete building block, by adding mixed and modified powder and other properties-correcting agent, makes the full property of aerated bricks improve a lot, and has improved ultimate compression strength and resistance toheat simultaneously.

Embodiment

A kind of heat-resisting aerated bricks, it is that raw material by following weight parts (kg) makes: sodium Diacetate 0.001, river sand 15, yttrium oxide 0.02, lime 15, cement 8, gypsum 1, aluminium powder 0.08, diatomite 12, Potassium Persulphate 0.004, polyethylene glycol acrylate 0.03, methyl acrylate 0.2, cinder 5, dry straw 5, flyash 10, Tai-Ace S 150 0.02, pull open powder 0.004, magnesium powder 0.06, coarse colza meal 0.03.

Described a kind of heat-resisting aerated bricks, the preparation method is:

(1) flyash, river sand, lime, cement, gypsum, dry straw are mixed by weight, under 600 ℃, calcining is 4 hours, take out, cooling, add in the hydrochloric acid soln that concentration is 8% and soak 10 hours, take out, dry, be equivalent to the Tritolyl Phosphate of its weight 1.8%, 2% zinc naphthenate, 2% Resorcinol and appropriate water, after stirring, take out, the sodium hydroxide solution that to put into concentration be 8% again soaks 10 hours, take out, dry, grind, cross 100 mesh sieves, obtain mixed and modified powder standby;

(2) after getting by weight cinder, flyash and mixing, under 900 ℃, calcining is after 3 hours, cooling, grind, cross 100 mesh sieves, soak 10 hours in the acetic acid solution that is 2% in concentration, after taking-up, deionized water wash, dry, grind, cross 200 mesh sieves, then mix by weight with mixed and modified powder, add again all the other raw materials, and suitable quantity of water, under room temperature, stir 10 minutes under 150 rev/mins, obtain mixed slurry;

(3) the gained mixed slurry is poured into the mold moulding, after 46 ℃ of lower precuring 4 hours, the demoulding, handling to cutting part cuts, and obtains the building block base;

(4) the building block base is put into to the reactor steam press maintenance, put finished product in storage and get final product.

The average unit weight of this building block is 720kg/m ³, good heat insulating, have a large amount of pores and micropore in building block inside, thereby good thermal and insulating performance, mean value ultimate compression strength are arranged is 8.7MPa.

Claims (2)

1. a heat-resisting aerated bricks, it is characterized in that: it is that raw material by following weight parts makes: sodium Diacetate 0.001-0.002, river sand 14-17, yttrium oxide 0.01-0.02, lime 10-18, cement 6-8, gypsum 1-2, aluminium powder 0.08-0.12, diatomite 10-12, Potassium Persulphate 0.001-0.004, polyethylene glycol acrylate 0.01-0.03, methyl acrylate 0.1-0.2, cinder 3-5, dry straw 3-5, flyash 8-10, Tai-Ace S 150 0.01-0.02, pull open powder 0.002-0.004, magnesium powder 0.04-0.06, coarse colza meal 0.01-0.03.

2. a kind of heat-resisting aerated bricks according to claim 1 is characterized in that:

The preparation method is:

(1) flyash, river sand, lime, cement, gypsum, dry straw are mixed by weight, calcining 2-4 hour under 500-600 ℃, take out, cooling, add in the hydrochloric acid soln that concentration is 8-10% and soak 8-10 hour, take out, dry, be equivalent to the Tritolyl Phosphate of its weight 1.5-2.6%, the zinc naphthenate of 2-3%, the Resorcinol of 1-2% and appropriate water, after stirring, take out, the sodium hydroxide solution that to put into concentration be 8-10% again soaks 8-10 hour, take out, dry, grind, cross the 100-200 mesh sieve, obtain mixed and modified powder standby;

(2) after getting by weight cinder, flyash and mixing, under 700-900 ℃, calcining is after 2-3 hour, cooling, grind, cross the 60-100 mesh sieve, soak 8-10 hour in the acetic acid solution that is 2-4% in concentration, after taking-up, deionized water wash, dry, grind, cross the 100-200 mesh sieve, then mix by weight with mixed and modified powder, add again all the other raw materials, and suitable quantity of water, under room temperature, stir 10-20 minute under 100-150 rev/min, obtain mixed slurry;

(3) the gained mixed slurry is poured into the mold moulding, after at 43-48 ℃ of lower precuring 3-5 hour, the demoulding, handling to cutting part cuts, and obtains the building block base;

(4) the building block base is put into to the reactor steam press maintenance, put finished product in storage and get final product.