CN105418000A - Anti-corrosion abrasion-resistant autoclaved aerated concrete block and manufacturing method thereof - Google Patents

Abstract

The invention discloses an anti-corrosion abrasion-resistant autoclaved aerated concrete block. Free hydroxide radicals in cellulose are sealed by acetylation reaction of coffee carbon fibers, so that hydrophobicity and thermal stability are improved; by addition of other effective ingredients according to physical modification methods, durability and dispersibility of the fibers in autoclaved aerated concrete are improved, and accordingly mechanical properties and characteristics of the aerated concrete block are improved. The anti-corrosion abrasion-resistant autoclaved aerated concrete block has the advantages of remarkable anti-corrosion effects, abrasion resistance, long service life, high strength, convenience in use and effectiveness in sound absorption and noise reduction due to addition of straw charcoal.

Description

A kind of wear-resistance and anti-corrosion autoclave aerated concrete building block and preparation method thereof

Technical field

The present invention relates to aerated-block technical field, be specifically related to a kind of wear-resistance and anti-corrosion autoclave aerated concrete building block and preparation method thereof.

Background technology

As one of the important kind of novel wall material, autoclave aerated concrete building block has the many merits such as good effect of heat insulation, fire resistance are good, sound insulation, light weight, environmental protection compared with traditional clay vitrified brick.But, air-entrained concrete building block cubic deformation coefficient is bigger than normal, low strength, water-intake rate are large, and when building into body of wall by laying bricks or stones, easily there is crack in body of wall, coat of plaster easily produces big area be full of cracks, hollowing and obscission, show obvious fragility, hinder further application and the popularization of autoclave aerated concrete building block to a certain extent.Fiber is just widely used in traditional normal concrete goods as a kind of good cement matrix strongthener from 20th century, and its correlation theory have also been obtained comparatively sufficient and deep research.But because autoclave aerated concrete building block is in industrialization production process, general employing steel wire carries out excision forming to the gas concrete after initial set, mix too much fiber to affect to some extent the cutting of gas concrete, fiber effect in steam-pressing aero-concrete is made not to be remarkable especially, hinder its range of application in autoclave aerated concrete building block, also have a strong impact on the product quality and performances of autoclave aerated concrete building block.

Summary of the invention

Object of the present invention is just to provide a kind of wear-resistance and anti-corrosion autoclave aerated concrete building block and preparation method thereof, to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

A kind of wear-resistance and anti-corrosion autoclave aerated concrete building block, it is characterized in that, be made up of the raw material of following weight part: medical stone powder 44-46, glass waste residue 25-27, straw charcoal 18-19, cement 4.3-4.9, aluminium powder cream 0.08-0.12, nano-cerium oxide 2-3, diacetyl oxide 55-58, Rice oil 3-5, gelatin 2-4,1-isobutyl-3,5-dimethylhexylphosphoric acid trimethyl-glycine 2.1-2.5, zinc carbonate 0.3-0.5, aluminum silicate fiber 4-6, fibroin fiber 3-4, coffee carbon fiber 6-7, suitable quantity of water.

The preparation method of described a kind of wear-resistance and anti-corrosion autoclave aerated concrete building block, is characterized in that comprising the following steps:

(1) coffee carbon fiber is put into baking oven in 105 DEG C of dry 1-2 hour, put into retort with pre-steaming 20-40 minute simultaneously, add diacetyl oxide, nano-cerium oxide stirring and evenly mixing leaves standstill 3-5 hour, then 100-140 DEG C of reaction 2-3 hour is heated to, dry to neutral with clear water rinsing, spray the drying of vaporific Rice oil;

(2) medical stone powder, glass waste residue, straw charcoal 5-8% hydrochloric acid soln are soaked 3-4 hour, washing, to neutral, calcines 4-5 hour at 510-560 DEG C, is cooled to 120-130 DEG C and adds gelatin grinding 30-50 minute;

(3) dropped in stirrer by step (2) material, add water stirring pulping, adds step (1) material, fibroin fiber stirs 2min, add cement mixing 1min, then add aluminium powder cream and other remaining components and stir 30s and obtain slurry, and ratio of water to material is 0.53;

(4) slurry that step (3) is obtained is entered mould, leaving standstill gets angry just supports 2-4 hour, and excision exceeds mould part, and reactor is put in the demoulding, and control temperature 150-170 DEG C is carried out high-temperature steam curing 8-12 hour, discharging.

The present invention has following beneficial effect: the present invention encloses hydroxyl free in Mierocrystalline cellulose by carrying out acetylization reaction to coffee carbon fiber; improve hydrophobic performance and the thermostability of material; physical modification method is coordinated to add other effective constituent again; improve fiber weather resistance and dispersiveness in steam-pressing aero-concrete; and then improve mechanical mechanics property and the feature of aerated-block; there is remarkable, the wear-resisting long service life of anticorrosion ability, intensity is high, easy to use; adding of straw charcoal, absorbing sound and lowering noise Be very effective.

Embodiment

Described a kind of wear-resistance and anti-corrosion autoclave aerated concrete building block, it is characterized in that, be made up of the raw material of following weight part: medical stone powder 44, glass waste residue 25, straw charcoal 18, cement 4.9, aluminium powder cream 0.08, nano-cerium oxide 2, diacetyl oxide 58, Rice oil 3, gelatin 2,1-isobutyl-3,5-dimethylhexylphosphoric acid trimethyl-glycine 2.1, zinc carbonate 0.3, aluminum silicate fiber 6, fibroin fiber 3, coffee carbon fiber 7, suitable quantity of water.

Making method comprises the following steps:

(1) coffee carbon fiber is put into baking oven in 105 DEG C of dry 1-2 hour, put into retort with pre-steaming 20-40 minute simultaneously, add diacetyl oxide, nano-cerium oxide stirring and evenly mixing leaves standstill 3-5 hour, then 100-140 DEG C of reaction 2-3 hour is heated to, dry to neutral with clear water rinsing, spray the drying of vaporific Rice oil;

(2) medical stone powder, glass waste residue, straw charcoal 5-8% hydrochloric acid soln are soaked 3-4 hour, washing, to neutral, calcines 4-5 hour at 510-560 DEG C, is cooled to 120-130 DEG C and adds gelatin grinding 30-50 minute;

(3) dropped in stirrer by step (2) material, add water stirring pulping, adds step (1) material, fibroin fiber stirs 2min, add cement mixing 1min, then add aluminium powder cream and other remaining components and stir 30s and obtain slurry, and ratio of water to material is 0.53;

(4) slurry that step (3) is obtained is entered mould, leaving standstill gets angry just supports 2-4 hour, and excision exceeds mould part, and reactor is put in the demoulding, and control temperature 150-170 DEG C is carried out high-temperature steam curing 8-12 hour, discharging.

The technical indicator of the autoclave aerated concrete building block that the present invention obtains is as follows:

(1) volume-weighted average is 632kg/m ³;

(2) thermal conductivity (W/mk): 0.085, has good thermal and insulating performance;

(3) ultimate compression strength: 7.33MPa.

Claims (2)

1. a wear-resistance and anti-corrosion autoclave aerated concrete building block, it is characterized in that, be made up of the raw material of following weight part: medical stone powder 44-46, glass waste residue 25-27, straw charcoal 18-19, cement 4.3-4.9, aluminium powder cream 0.08-0.12, nano-cerium oxide 2-3, diacetyl oxide 55-58, Rice oil 3-5, gelatin 2-4,1-isobutyl-3,5-dimethylhexylphosphoric acid trimethyl-glycine 2.1-2.5, zinc carbonate 0.3-0.5, aluminum silicate fiber 4-6, fibroin fiber 3-4, coffee carbon fiber 6-7, suitable quantity of water.

2. the making method of a kind of wear-resistance and anti-corrosion autoclave aerated concrete building block according to claim 1, is characterized in that comprising the following steps:

(1) coffee carbon fiber is put into baking oven in 105 DEG C of dry 1-2 hour, put into retort with pre-steaming 20-40 minute simultaneously, add diacetyl oxide, nano-cerium oxide stirring and evenly mixing leaves standstill 3-5 hour, then 100-140 DEG C of reaction 2-3 hour is heated to, dry to neutral with clear water rinsing, spray the drying of vaporific Rice oil;

(2) medical stone powder, glass waste residue, straw charcoal 5-8% hydrochloric acid soln are soaked 3-4 hour, washing, to neutral, calcines 4-5 hour at 510-560 DEG C, is cooled to 120-130 DEG C and adds gelatin grinding 30-50 minute;

(3) dropped in stirrer by step (2) material, add water stirring pulping, adds step (1) material, fibroin fiber stirs 2min, add cement mixing 1min, then add aluminium powder cream and other remaining components and stir 30s and obtain slurry, and ratio of water to material is 0.53;

(4) slurry that step (3) is obtained is entered mould, leaving standstill gets angry just supports 2-4 hour, and excision exceeds mould part, and reactor is put in the demoulding, and control temperature 150-170 DEG C is carried out high-temperature steam curing 8-12 hour, discharging.