CN104844262A - High-moistureproof-effect haydite-reinforced aerated building block - Google Patents

Abstract

The invention discloses a high-moistureproof-effect haydite-reinforced aerated building block which is prepared from the following raw materials in parts by weight: 5-8 parts of citric acid slag, 7-10 parts of mullite powder, 30-50 parts of haydite, 15-30 parts of fly ash, 10-13 parts of quicklime, 16-21 parts of cement, 0.2-0.4 part of aluminum powder, 2-4 parts of redispersible latex powder, 0.4-0.8 part of calcium chloride, 0.3-0.5 part of calcium lignosulphonate, 1-3 parts of iron powder, 3-5 parts of nano aluminum oxide, 2-4 parts of carbon black, 15-20 parts of anhydrous ethanol and a right amount of water. The technique solves the problem of uneven distribution of the haydite in the slurry due to the breakable and light-weight characteristics of the haydite in the working process. The added redispersible latex powder enhances the strength, apparent density and heat conductivity coefficient of the building block. The added citric acid slag solves the problem of environmental pollution, substitutes the effect of gypsum, lowers the production cost, implements energy saving and environment friendliness, changes wastes into valuable substances and brings in huge social benefits.

Description

The reinforced aerated building block of the haydite that a kind of moisture effect is good

Technical field

The present invention relates to aerated-block field, is specifically the reinforced aerated building block of haydite that a kind of moisture effect is good.

Background technology

The materials for wall mainly clay brick that construction market was used in the past, country's restriction in urban construction at present uses solid clay brick as the packing material of skeleton construction.Gas concrete, as New Building Materials, is a kind of material with polymolecularity vesicular structure, high-strength light, heat insulating, sound absorption sound insulation, antidetonation fire prevention, the advantage such as simple of constructing, and can play the effect that joint soil, profit are useless, energy-conservation.And along with improving constantly of the market requirement, some are in the region such as People's Bank of China street, restaurant, dining room, bar, square, tourist attraction and flooring be heat insulation, the moisture effect on wall or ground especially seems even more important, and common air-entrained concrete building block can not meet its demand.

Haydite is a kind of artificial light aggregate, shell is hard, inside has micro-porous ceramic saccharoid, it has good heat insulation property, has excellent fire-resistance, and surface has one deck water proof to protect the glaze layer of gas, water-intake rate is low, impervious shock resistance is good, anti-freezing property and excellent in durability, has excellent physics, chemistry and hydraulic performance.In gas concrete, add haydite, not only increase concrete skeleton structure, and effectively can keep the advantage of gas concrete, strengthen its moisture effect.Due to the aglite that haydite is a kind of hollow, in whipping process, because the ratio of slip is great, haydite easily floats, and causes skewness, form product defects, on the other hand, because the self-strength of haydite aggregate is lower, in whipping process, easily breakage is produced, this not only adds self water-intake rate of haydite, but also reduce product humidity resistance.Therefore, must process haydite, improve the producing and manufacturing technique of aerated-block.

Summary of the invention

The object of this invention is to provide reinforced aerated building block of the good haydite of a kind of moisture effect and preparation method thereof.

In order to realize object of the present invention, the present invention is by following scheme implementation:

The reinforced aerated building block of the haydite that moisture effect is good, is made up of the raw material of following weight part: citric acid waste 5-8, mullite powder 7-10 haydite 30-50, flyash 15-30, unslaked lime 10-13, cement 16-21, aluminium powder 0.2-0.4, redispersible latex powder 2-4, calcium chloride 0.4-0.8, calcium lignin sulphonate 0.3-0.5, iron powder 1-3, nano-aluminium oxide 3-5, carbon black 2-4, dehydrated alcohol 15-20, water are appropriate;

The reinforced aerated building block of haydite that a kind of moisture effect of the present invention is good, be made up of following concrete steps:

(1) iron powder, carbon black and nano-aluminium oxide to be added in the dehydrated alcohol containing 0.5% silane resin acceptor kh-550 ultrasonic disperse even, after dry and haydite mix and be added in sintering oven, sinter under 1000-1200 ° of C 1-2 hour for subsequent use;

(2) sintering ceramsite prepared by step (1) is soaked 12-24 hour in pond, then mixing and stirring in water redispersible latex powder and calcium chloride being added to 2-3 times of weight part, be heated to 20-25 ° of C, and above-mentioned haydite stirs for subsequent use;

(3) by flyash, cement, citric acid waste, mullite powder and unslaked lime mixing and stirring, the water and the calcium lignin sulphonate that add 2-3 times of weight part stir 3-5 minute, the haydite adding step (2) again continues to stir 3-4 minute, then stirs 20-40 second by adding after appropriate water-dispersion aluminium powder;

(4) product of step (3) is added in cast stirrer to stir and make slurry, slurry is entered mould, mould is put into baking oven and leave standstill the 2-3 hour that gets angry, excision exceeds the part of mould, the demoulding, then be put in still and carry out vapor cure, vapor pressure is 1.1-1.3MPa, temperature is 180-190 ° of C, and the steam-cured time is 8-12 hour.

Advantage of the present invention is: the present invention utilizes carbon black and iron powder reaction to make haydite generate the little and structure that specific surface area is large in inner aperture, increase the contact area with slurry, strengthen cohesiveness, utilize the intensity of alumina modified enhancing haydite and reduce the coefficient of shrinkage, pre-wetted treatment and surface coated processing method is adopted to solve haydite breakable problem in the course of processing, the cohesiveness of further enhancing and sand-cement slurry, prevent from floating in the slurry skewness, the redispersible latex powder added adds the intensity of building block, apparent density and thermal conductivity, the citric acid waste added solves the problem of environmental pollution, and instead of the effect of gypsum, reduce production cost, and realize energy-conserving and environment-protective, the theme of turning waste into wealth, bring huge social benefit.

Specific embodiments

Below by specific examples, the present invention is described in detail.

The reinforced aerated building block of the haydite that moisture effect is good, is made up of the raw material of following weight part (kilogram): citric acid waste 7, mullite powder 9, haydite 50, flyash 26, unslaked lime 11, cement 18, aluminium powder 0.4, redispersible latex powder 3, calcium chloride 0.6, calcium lignin sulphonate 0.4, iron powder 2, nano-aluminium oxide 4, carbon black 3, dehydrated alcohol 16, water are appropriate;

The reinforced aerated building block of haydite that a kind of moisture effect of the present invention is good, be made up of following concrete steps:

(1) iron powder, carbon black and nano-aluminium oxide to be added in the dehydrated alcohol containing 0.5% silane resin acceptor kh-550 ultrasonic disperse even, after dry and haydite mixing be added in sintering oven, under 1100 ° of C, sintering 2 hours is for subsequent use;

(2) sintering ceramsite prepared by step (1) is soaked 24 hours in pond, then mixing and stirring in water redispersible latex powder and calcium chloride being added to 2 times of weight parts, be heated to 25 ° of C, and above-mentioned haydite stirs for subsequent use;

(3) by flyash, cement, citric acid waste, mullite powder and unslaked lime mixing and stirring, the water and the calcium lignin sulphonate that add 3 times of weight parts stir 4 minutes, the haydite adding step (2) again continues stirring 4 minutes, then adds stirring 40 seconds by after appropriate water-dispersion aluminium powder;

(4) product of step (3) is added in cast stirrer to stir and make slurry, slurry is entered mould, mould is put into baking oven leave standstill get angry 3 hours, excision exceeds the part of mould, the demoulding, then be put in still and carry out vapor cure, vapor pressure is 1.3MPa, temperature is 190 ° of C, and the steam-cured time is 8 hours.

In the present embodiment, the performance index of aerated-block are as follows:

Ultimate compression strength (MPa): >=5.4;

Shrinkage value (mm/m) :≤0.35;

Density (level): 05;

Frost resistance (15 times, rate of loss %) :≤2;

Thermal conductivity (W/m.k) :≤0.13.

Claims (2)

1. the reinforced aerated building block of haydite that a moisture effect is good, it is characterized in that, be made up of the raw material of following weight part: citric acid waste 5-8, mullite powder 7-10 haydite 30-50, flyash 15-30, unslaked lime 10-13, cement 16-21, aluminium powder 0.2-0.4, redispersible latex powder 2-4, calcium chloride 0.4-0.8, calcium lignin sulphonate 0.3-0.5, iron powder 1-3, nano-aluminium oxide 3-5, carbon black 2-4, dehydrated alcohol 15-20, water are appropriate.

2. the reinforced aerated building block of haydite that a kind of moisture effect is good according to claim 1, is characterized in that, be made up of following concrete steps:

(1) iron powder, carbon black and nano-aluminium oxide to be added in the dehydrated alcohol containing 0.5% silane resin acceptor kh-550 ultrasonic disperse even, after dry and haydite mix and be added in sintering oven, sinter under 1000-1200 ° of C 1-2 hour for subsequent use;

(2) sintering ceramsite prepared by step (1) is soaked 12-24 hour in pond, then mixing and stirring in water redispersible latex powder and calcium chloride being added to 2-3 times of weight part, be heated to 20-25 ° of C, and above-mentioned haydite stirs for subsequent use;

(3) by flyash, cement, citric acid waste, mullite powder and unslaked lime mixing and stirring, the water and the calcium lignin sulphonate that add 2-3 times of weight part stir 3-5 minute, the haydite adding step (2) again continues to stir 3-4 minute, then stirs 20-40 second by adding after appropriate water-dispersion aluminium powder;

(4) product of step (3) is added in cast stirrer to stir and make slurry, slurry is entered mould, mould is put into baking oven and leave standstill the 2-3 hour that gets angry, excision exceeds the part of mould, the demoulding, then be put in still and carry out vapor cure, vapor pressure is 1.1-1.3MPa, temperature is 180-190 ° of C, and the steam-cured time is 8-12 hour.