CN102875184B - Oil shale residue aerated brick and preparation method thereof - Google Patents

Abstract

The invention provides an oil shale residue aerated brick. The oil shale residue aerated brick is prepared from the following raw materials: 20 to 30 weight parts of oil shale residue, 25 to 30 weight parts of coal ash, 5 to 10 weight parts of cement, 4 to 6 weight parts of modified attapulgite, 5 to 10 weight parts of mica powder, 5 to 10 weight parts of ceramics factory waste, 5 to 10 weight parts of calcium carbonate powder, 10 to 15 weight parts of lime, 0.1 to 0.3 weight percent of triethanolamine lime, 4 to 5 weight parts of gypsum, 0.02 to 0.08 weight part of aluminum powder, nekal which is 3 to 5 percent based on weight of aluminum powder, 0.01 to 0.02 weight part of calcium bicarbonate, 2 to 3 weight parts of volcanic rock, 1 to 2 weight parts of lignocellulose, 0.3 to 0.5 weight part of soda ash, 0.03 to 0.05 weight part of borax, 1 to 2 weight parts of sodium diacetate, 1 to 2 weight parts of hydroxypropyl methyl cellulose sodium, and 1 to 2 weight parts of superfine polyvinyl alcohol. The oil shale residues are added into the raw materials of the aerated brick, other conventional aids and modified nano aids are added, and the aerated brick which is processed by an appropriate process is low in cost and high in performance, achieves the cyclic economy effect of changing waste into wealth, and reduces pollution; and the processed aerated brick has the characteristics of light volume weight, high thermal insulation property, good sound absorption effect, and high intensity and can be used for a non-load bearing wall body or a load-bearing wall body.

Description

A kind of oil shale waste aerated bricks and preparation method thereof

Technical field

The present invention relates to building material field, be specifically related to a kind of oil shale waste aerated bricks and preparation method thereof.

Background technology

It is main raw material that air-entrained concrete building block be take cement, slag, sand, lime etc., add foaming agent, the solid block forming through stirring moulding, steam press maintenance, gas concrete is by purposes, can be divided into five kinds, non-bearing building block, bearing building block, insulation block, wallboard and roof boarding.

Aerated bricks has that unit weight is light, heat-insulating property is high, sound-absorbing effect is good, has the advantage ，Shi China such as certain intensity and workability and applies the earliest, one of most popular light wall material.

Under the background becoming more and more important in the whole world energy and natural conservation; along with the adjustment of industry policy and the raising of environmental protection consciousness; the utilization of other trade wastes also presents ascendant trend; the Heterosis of the economy that most countries has in construction process trade waste, environment and technical elements goes out positive interest; many trade wastes are proved to be and can be recycled, and become the power of developing a circular economy with Sustainable development.

Human society industry and expanding economy and human living standard's raising and diversified result thereof, formed the social system of large-scale production, high flow rate and many discardedization.Particularly a large amount of municipal wastess, has to adopt burn to subtract and holds innoxious and landfill disposal.But land occupation and environmental pollution are still maximum social concern.Solving this strongest countermeasure of changing day by day deeply problem is to carry out rubbish and trade waste renewable resources.

Using various trade wastes or urban construction waste as starting material, add to aerated bricks production in, play saving natural resource, the useless environmental protection texts of profit, becomes and develops a circular economy and the power of Sustainable development.

The present invention adds in aerated bricks and has realized the cyclic utilization of waste oil shale waste as starting material, has reduced the pollution to environment, meets strategy of sustainable development requirement.

Summary of the invention

The invention provides a kind of oil shale waste aerated bricks and working method thereof, aerated bricks of the present invention has that unit weight is light, heat-insulating property is high, sound-absorbing effect is good, and the feature that intensity is high, can be used as non-bearing wall body or the body of wall of weighing is used.

Technical scheme of the present invention is as follows:

An aerated bricks, is characterized in that, its starting material by following weight part are processed into:

Oil shale waste 20-30, flyash 25-30, cement 5-10, attapulgite modified 4-6, mica powder 5-10, the waste material 5-10 of ceramics factory, light calcium carbonate powder 5-10, lime 10-15, the 0.1-0.3% of trolamine lime weight, gypsum 2, aluminium powder 0.02-0.08, sodium dibutyl naphthalene sulfonate dosage are 3-5%, Calcium hydrogen carbonate 0.01-0.02, volcanics 2-3, lignocellulose 1-2, soda ash 0.3-0.5, sodium Diacetate 1-2, Vltra tears sodium 1-2, borax 0.03-0.05, the micronized polyethylene alcohol 1-2 of aluminium powder weight

(1) attapulgite is carried out to modification: first use 15-20% salt acid soak attapulgite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, add that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, grind to form nanometer powder.

Described a kind of oil shale waste aerated bricks, is characterized in that, its starting material by following weight part are processed into:

Oil shale waste 25, cement 56, attapulgite modified 5, mica powder 8, ceramics factory's waste material 6, light calcium carbonate powder 12, lime 14, the 0.1-0.3% of trolamine lime weight, gypsum 2, aluminium powder 0.05, sodium dibutyl naphthalene sulfonate dosage be aluminium powder weight 4%, Calcium hydrogen carbonate 0.01, volcanics 3, lignocellulose 1.5, soda ash 0.4, sodium Diacetate 1, Vltra tears sodium 2, borax 0.04, micronized polyethylene alcohol 1.

The preparation method of described oil shale waste aerated bricks, is characterized in that, comprises the following steps:

(1) attapulgite is carried out to modification: first use 15-20% salt acid soak attapulgite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, add that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, grind to form nanometer powder;

(2) by formula rate, take each starting material, lumpy material is dropped into abrasive dust in ball mill, powder is crossed 180-200 mesh sieve;

(3) major ingredient of milled, auxiliary agent is admixed together, drop in stirrer, add appropriate water to stir into slurry;

(4) mixed slurry being stirred is injected to mould;

(5) then put into the chamber of resting at 50-60 ℃ of sealing thermal insulation, the time 1.5-2 hour that rests, the base substrate that obtains resting; (6) base substrate of resting is put into and on cutting machine, is processed into fragment of brick; (7) fragment of brick is put in high pressure autoclave and carried out steam press maintenance 3-4 hour, steam curing temperature is 180-195 ℃, steam-cured pressure 10-11 MPa;

(8) fragment of brick in autoclave is removed pressure, lowered the temperature, goes out still, obtain product.

beneficial effect of the present invention:

The present invention, by adopting oil shale waste as the composition of aerated bricks, has effectively reduced environmental pollution, turns waste into wealth, and has protected environment; The present invention, by adding nanometer powder breeze, has alleviated the unit weight of brick, meanwhile, has reduced energy consumption; Brick of the present invention is heat insulation all good with sound-proofing properties, and more existing aerated bricks is significantly improved.The present invention is simultaneously by optimization of C/C composites materials, and intensity of the present invention, frost resistance are significantly improved.Prepared aerated bricks both can be used as non-bearing wall body and had used, and also can make bearing wall and use.

Embodiment

Embodiment 1

Take the starting material of following weight part: oil shale waste 20-30, flyash 25-30, cement 5-10, modified Nano attapulgite 4-6, mica powder 5-10, the waste material 5-10 of ceramics factory, light calcium carbonate powder 5-10, lime 10-15, the 0.1-0.3% of trolamine lime weight, gypsum 1-3, aluminium powder 0.02-0.08, sodium dibutyl naphthalene sulfonate dosage is the 3-5% of aluminium powder weight, Calcium hydrogen carbonate 0.01-0.02, volcanics 2-3, lignocellulose 1-2, soda ash 0.3-0.5, sodium Diacetate 1-2, borax 0.03-0.05, Vltra tears sodium 1-2, micronized polyethylene alcohol 1-2,

Wherein, attapulgite is carried out to modification: first use 15-20% salt acid soak attapulgite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, adds that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, grind to form nanometer powder

Load weighted above-mentioned substance is processed into aerated bricks finished product by following method, concrete steps:

(1) attapulgite is carried out to modification: first use 15-20% salt acid soak attapulgite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, add that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, grind to form nanometer powder;

(2) by formula rate, take each starting material, lumpy material is dropped into abrasive dust in ball mill, powder is crossed 180-200 mesh sieve;

(3) major ingredient of milled, auxiliary agent is admixed together, drop in stirrer, add appropriate water to stir into slurry;

(4) mixed slurry being stirred is injected to mould;

(5) then put into the chamber of resting at 50-60 ℃ of sealing thermal insulation, the time 1.5-2 hour that rests, the base substrate that obtains resting; (6) base substrate of resting is put into and on cutting machine, is processed into fragment of brick; (7) fragment of brick is put in high pressure autoclave and carried out steam press maintenance 6-8 hour, steam curing temperature is 180-195 ℃, steam-cured pressure 10-11 MPa;

(8) fragment of brick in autoclave is removed pressure, lowered the temperature, goes out still, obtain product.

Embodiment 2

Take the starting material of following weight part: oil shale waste 25, cement 56, modified Nano attapulgite 5, mica powder 8, ceramics factory's waste material 6, light calcium carbonate powder 12, lime 14, the 0.1-0.3% of trolamine lime weight, gypsum 2, aluminium powder 0.05, sodium dibutyl naphthalene sulfonate dosage is 4% of aluminium powder weight, Calcium hydrogen carbonate 0.01, volcanics 3, lignocellulose 1.5, soda ash 0.4, sodium Diacetate 1, borax 0.04, Vltra tears sodium 2, micronized polyethylene alcohol 1, wherein, attapulgite modifiedly by following method, made: first use 15 % salt acid soak sepiolite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, add that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, be ground into powder,

Load weighted above-mentioned substance is processed into aerated bricks finished product by following method, concrete steps:

(1) attapulgite is carried out to modification: first use 15-20% salt acid soak attapulgite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, add that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, grind to form nanometer powder;

(2) by formula rate, take each starting material, lumpy material is dropped into abrasive dust in ball mill, powder is crossed 180-200 mesh sieve;

(3) major ingredient of milled, auxiliary agent is admixed together, drop in stirrer, add appropriate water to stir into slurry;

(4) mixed slurry being stirred is injected to mould;

(5) then put into the chamber of resting at 50-60 ℃ of sealing thermal insulation, the time 1.5-2 hour that rests, the base substrate that obtains resting; (6) base substrate of resting is put into and on cutting machine, is processed into fragment of brick; (7) fragment of brick is put in high pressure autoclave and carried out steam press maintenance 6-8 hour, steam curing temperature is 180-195 ℃, steam-cured pressure 10-11 MPa;

(8) fragment of brick in autoclave is removed pressure, lowered the temperature, goes out still, obtain product.

Performance test results to the aerated bricks of embodiment 2 sees the following form:

Claims (1)

1. an oil shale waste aerated bricks, is characterized in that, its starting material by following weight part are processed into:

Oil shale waste 20-30, flyash 25-30, cement 5-10, modified Nano attapulgite 4-6, mica powder 5-10, the waste material 5-10 of ceramics factory, light calcium carbonate powder 5-10, lime 10-15,0.1-0.3%, the gypsum 1-3 of trolamine lime weight, aluminium powder 0.02-0.08, sodium dibutyl naphthalene sulfonate dosage are 3-5%, Calcium hydrogen carbonate 0.01-0.02, volcanics 2-3, lignocellulose 1-2, soda ash 0.3-0.5, sodium Diacetate 1-2, Vltra tears sodium 1-2, micronized polyethylene alcohol 1-2, the borax 0.03-0.05 of aluminium powder weight

Described modified Nano attapulgite is made by following method: first use 15-20% salt acid soak attapulgite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, adds that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, grind to form nanometer powder.

2.the preparation method of oil shale waste aerated bricks as claimed in claim 1, is characterized in that, comprises the following steps:

(1) attapulgite is carried out to modification: first use 15-20% salt acid soak attapulgite 1-2 hour, standing, clarification, centrifugal, solid washes with water to neutrality, after oven dry, add that to be equivalent to the vinyltriethoxysilane agitating of solid weight 3-5% even, dry, grind to form nanometer powder;

(2) by formula rate, take each starting material, lumpy material is dropped into abrasive dust in ball mill, powder is crossed 180-200 mesh sieve;

(3) major ingredient of milled, auxiliary agent is admixed together, drop in stirrer, add appropriate water to stir into slurry;

(4) mixed slurry being stirred is injected to mould;

(5) then put into the chamber of resting at 50-60 ℃ of sealing thermal insulation, the time 1.5-2 hour that rests, the base substrate that obtains resting; (6) base substrate of resting is put into and on cutting machine, is processed into fragment of brick; (7) fragment of brick is put in high pressure autoclave and carried out steam press maintenance 6-8 hour, steam curing temperature is 180-195 ℃, steam-cured pressure 10-11 MPa;

(8) fragment of brick in autoclave is removed pressure, lowered the temperature, goes out still, obtain product.