CN104909811A - Lightweight sour corrosion resistant ceramsite reinforced aerated building block - Google Patents

Abstract

The present invention discloses a high-waterproof non-leakage ceramsite enhanced aerated building block which is characterized by comprising the following raw materials in parts by weight: 20-25 parts of iron-ore slag, 30-50 parts of ceramsite, 15-30 parts of fly ash, 10-15 parts of quick lime, 6-12 parts of cement, 0.2-0.4 part of aluminum powder, 2-3 parts of gypsum powder, 0.2-0.3 part of sodium fluosilicate, 0.3-0.5 part of lignin calcium sulfonate, 1-3 parts of iron powder, 3-5 parts of nano aluminum oxide, 2-4 parts of carbon black, 15-20 parts of absolute ethanol, and proper amount of water; the process solves the problems of being fragile and light and uneven in distribution of the ceramsite in slurry in processing process, the added iron-ore slag turns waste material into things of value, solves the problems of environmental pollution, fills the gaps among the cement, reduces use amount of the cement, enhances the strength, wear resistance, anticorrosion performance of the block, and increases the durability of block in bad saline conditions.

Description

A kind of reinforced aerated building block of haydite of lightweight acid resistance corrosion

Technical field

The present invention relates to aerated-block field, is specifically the reinforced aerated building block of haydite of a kind of lightweight acid resistance corrosion.

Background technology

Novel wall material gas concrete as a kind of less energy-consumption, the New Building Materials of environment-friendly type, compared with traditional materials for wall, there is high-strength light, heat insulating, sound absorption sound insulation, antidetonation fire prevention, the advantage such as simple of constructing, the effect that joint soil, profit are useless, energy-conservation can be played.But because ordinary air-entrained concrete is made up of cement, flyash, unslaked lime, terra alba etc., there is the problems such as drying shrinkage value is large, intensity is low, infiltration, not corrosion-resistant, thermal insulation is not good, material source is single, cannot meet the need of market.

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 order to improve the shortcoming of above-mentioned gas concrete, some producers add haydite in gas concrete, not only increase concrete skeleton structure, and effectively can keep the advantage of gas concrete, overcome its common quality defect.But, due to the aglite that haydite is a kind of hollow, in whipping process, because the ratio of slip is great, haydite easily floats, cause skewness, form product defects, on the other hand, because the self-strength of haydite aggregate is lower, easily produce breakage in whipping process, this not only adds self water-intake rate of haydite, but also reduce durability of product energy.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 haydite of a kind of lightweight acid resistance corrosion 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 haydite of lightweight acid resistance corrosion, is made up of the raw material of following weight part: Iron-ore Slag 20-25, haydite 30-50, flyash 15-30, unslaked lime 10-15, cement 6-12, aluminium powder 0.2-0.4, terra alba 2-3, Sodium Silicofluoride 0.2-0.3, 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 of a kind of lightweight acid resistance corrosion of the present invention, 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 terra alba and Sodium Silicofluoride 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, Iron-ore Slag 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 Iron-ore Slag added is turned waste into wealth, solve the problem of environmental pollution, and the space be filled with between cement, reduce the usage quantity of cement, strengthen the intensity of building block, wear resistance, antiseptic property, building block weather resistance under severe saline and alkaline condition is improved.

Specific embodiments

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

The reinforced aerated building block of haydite of lightweight acid resistance corrosion, is made up of the raw material of following weight part (kilogram): Iron-ore Slag 22, haydite 50, flyash 25, unslaked lime 12, cement 10, aluminium powder 0.4, terra alba 2, Sodium Silicofluoride 0.2, 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 of a kind of lightweight acid resistance corrosion of the present invention, 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 terra alba and Sodium Silicofluoride 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, Iron-ore Slag and unslaked lime mixing and stirring, the water and the calcium lignin sulphonate that add 3 times of weight parts stir 5 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): >=5.2;

Shrinkage value (mm/m) :≤0.38;

Density (level): 06;

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

Thermal conductivity (W/m.k) :≤0.15.

Claims (2)

1. the reinforced aerated building block of haydite of a lightweight acid resistance corrosion, it is characterized in that, be made up of the raw material of following weight part: Iron-ore Slag 20-25, haydite 30-50, flyash 15-30, unslaked lime 10-15, cement 6-12, aluminium powder 0.2-0.4, terra alba 2-3, Sodium Silicofluoride 0.2-0.3, 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 of a kind of lightweight acid resistance corrosion 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 terra alba and Sodium Silicofluoride 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, Iron-ore Slag 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.