CN103253907B - A kind of red mud/attapulgite ceramsite concrete hollow insulation block and preparation method thereof - Google Patents

A kind of red mud/attapulgite ceramsite concrete hollow insulation block and preparation method thereof Download PDF

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Publication number
CN103253907B
CN103253907B CN201310123462.8A CN201310123462A CN103253907B CN 103253907 B CN103253907 B CN 103253907B CN 201310123462 A CN201310123462 A CN 201310123462A CN 103253907 B CN103253907 B CN 103253907B
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red mud
attapulgite
powder
water
concrete hollow
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CN103253907A (en
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盛蕾
盛志义
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CHIZHOU XINLEI GREEN BUILDING MATERIAL Co Ltd
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CHIZHOU XINLEI GREEN BUILDING MATERIAL Co Ltd
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Abstract

The invention discloses a kind of red mud/attapulgite ceramsite concrete hollow insulation block and preparation method thereof.Does is it made up of the raw material of following weight part: 42.5 ordinary Portland cement 105-115, stone fragment 500-550, red mud 20-30, attapulgite 8-12, spent pulping liquor 4-8, waste glass powder 3-5, coal dust 1-3, water glass 20-25, straw powder 8-12, whipping agent 3-5, oil foot 1-2, polyimide fiber? 2-3, redispersible latex powder 0.5-1, water 160-200.Red mud/attapulgite ceramsite concrete hollow insulation block that the present invention produces has that intensity is high, density is low, thermal and insulating performance is good, good impact resistance, not easily absorb water; the advantage such as fire protection flame retarding, good weatherability, environmental protection and energy saving, in China, building energy conservation Application Areas has the great market space and development prospect.

Description

A kind of red mud/attapulgite ceramsite concrete hollow insulation block and preparation method thereof
Technical field
The present invention relates to a kind of red mud/attapulgite ceramsite concrete hollow insulation block and preparation method thereof, belong to building material field.
Background technology
Materials for wall is the important component part of architectural exterior-protecting construction, and along with popularization and people's improving constantly living environment comfortableness demand of building energy conservation, wall heat insulation material is more and more subject to people's attention.The more materials for wall of current application mainly contains concrete segment, air-entrained concrete building block, sintered perforated brick class etc.When ordinary concrete hollow block is used for heat preservation energy-saving exterior wall, heat preservation and energy conservation effects is poor, in use must at the internal surface of body of wall or outside surface, the lagging material of attachment composite highly effective, and cost is high, and difficulty of construction is large; Air-entrained concrete building block due to its thermal and insulating performance good, the advantages such as refractoriness is high, and density is little, are widely used in the internal partition wall of skeleton construction, but its to there is water-intake rate relatively high, intensity is relatively low, and cracking easily appears in body of wall; Sintered perforated brick is the pertusate brick in large face, and hole is many and little, cannot reach the requirement of heat preservation energy-saving.The obvious shortcoming and defect of above-mentioned materials for wall, cannot meet insulation or quality control requirement, therefore, developing energy-conservation Novel wall body heat insulation material as early as possible becomes the task of top priority.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, red mud/attapulgite ceramsite concrete hollow insulation block that a kind of intensity is high, volume stability good, thermal and insulating performance is good and preparation method thereof is provided.
The technical solution used in the present invention is as follows:
A kind of red mud/attapulgite ceramsite concrete hollow insulation block, is made up of the raw material of following weight part: 42.5 ordinary Portland cement 105-115, stone fragment 500-550, red mud 20-30, attapulgite 8-12, spent pulping liquor 4-8, waste glass powder 3-5, coal dust 1-3, water glass 20-25, straw powder 8-12, whipping agent 3-5, oil foot 1-2, polyimide fiber 2-3, redispersible latex powder 0.5-1, water 160-200.
A kind of preparation method of red mud/attapulgite ceramsite concrete hollow insulation block, comprise the following steps: (1) grinds to form 100-200 order powder through shredder after red mud and attapulgite being mixed, add spent pulping liquor, waste glass powder, coal dust again, stir, obtain form of spherical particles raw material through extrusion molding, cutting, granulation, particle diameter is 2-3mm; By particle raw material at room temperature dry 20-24h, then put into the 100-110 DEG C of dry 2-3h of thermostatic drying chamber, finally high-temperature roasting 1-1.5h at 1250-1350 DEG C, obtains red mud/attapulgite haydite;
(2) above-mentioned obtained red mud/attapulgite haydite is dropped in high-speed mixer, add water glass again, heating in water bath is to 80-90 DEG C, stir, then add straw powder, blended 3-5min under 2000-3000rpm rotating speed, finally send into granulation in tablets press, size controlling, at 2-3mm, obtains straw powder coated red mud/attapulgite haydite;
(3) above-mentioned obtained straw powder coated red mud/attapulgite haydite and 42.5 ordinary Portland cements, stone fragment, polyimide fiber, redispersible latex powder dry mixing 30-50s is got, make it mix, add water again and stir 3-5min, form mixed slurry;
(4) get whipping agent and add the foam that 12-16 water doubly obtains stable uniform after stirring 2-3min, stirring velocity 500-600/min, then the ratio of foam 45-55 milliliter is added in every 100 grams of batch mixings, obtained foam is passed in the batch mixing that step (3) obtains, after stirring, add oil foot again, after stirring 3-4min, namely obtain foamed slurry;
(5) be injected in building block mould by foamed slurry shaping, the demoulding after 2-3 days, namely obtains hollow heat-insulation building block finished product through vapor cure.
Described whipping agent is made up of the 4-5:2-3:1 mixing by weight proportion of sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, gelatin.
Beneficial effect of the present invention:
The present invention utilizes the raw material such as red mud, attapulgite to make haydite, it is little that it has light weight density, internal porous, corrosion-resistant, freeze proof fire-resistant, the features such as antidetonation and good insulating, thus the sandstones such as river sand, mountain sand and the quartz sand in concrete can be replaced, obviously improve the thermal and insulating performance of holllow building block; The present invention also utilizes the coated haydite of straw powder, the haydite thermal and insulating performance that can improve further; Red mud/attapulgite ceramsite concrete hollow insulation block that the present invention produces has that intensity is high, density is low, thermal and insulating performance is good, good impact resistance, not easily absorb water; the advantage such as fire protection flame retarding, good weatherability, environmental protection and energy saving, in China, building energy conservation Application Areas has the great market space and development prospect.
Embodiment
A kind of red mud/attapulgite ceramsite concrete hollow insulation block, is made up of the raw material of following weight part: 42.5 ordinary Portland cements 110, stone fragment 540, red mud 25, attapulgite 10, spent pulping liquor 6, waste glass powder 4, coal dust 2, water glass 22, straw powder 10, whipping agent 4, oil foot 1.5, polyimide fiber 2, redispersible latex powder 0.6, water 180.
A kind of preparation method of red mud/attapulgite ceramsite concrete hollow insulation block, comprise the following steps: (1) grinds to form 150 order powder through shredder after red mud and attapulgite being mixed, add spent pulping liquor, waste glass powder, coal dust again, stir, obtain form of spherical particles raw material through extrusion molding, cutting, granulation, particle diameter is 2mm; By particle raw material at room temperature dry 24h, then put into 105 DEG C of dry 2h of thermostatic drying chamber, finally high-temperature roasting 1h at 1350 DEG C, obtains red mud/attapulgite haydite;
(2) above-mentioned obtained red mud/attapulgite haydite is dropped in high-speed mixer, add water glass again, heating in water bath to 90 DEG C, stir, then add straw powder, blended 3min under 3000rpm rotating speed, finally send into granulation in tablets press, particle diameter is 3mm, obtains straw powder coated red mud/attapulgite haydite;
(3) get above-mentioned obtained straw powder coated red mud/attapulgite haydite and 42.5 ordinary Portland cements, stone fragment, polyimide fiber, redispersible latex powder dry mixing 40s, make it mix, then add water stirring 4min, form mixed slurry;
(4) foam that water that whipping agent adds 15 times obtains stable uniform after stirring 2min is got, stirring velocity 600/min, then the ratio of foam 45 milliliters is added in every 100 grams of batch mixings, obtained foam is passed in the batch mixing that step (3) obtains, after stirring, add oil foot again, after stirring 3min, namely obtain foamed slurry;
(5) be injected in building block mould by foamed slurry shaping, the demoulding after 3 days, namely obtains hollow heat-insulation building block finished product through vapor cure.
Wherein, described whipping agent is made up of the 4:3:1 mixing by weight proportion of sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, gelatin.
After testing, its performance is: ultimate compression strength 4.6MPa, drying shrinkage value 0.07mm/m, volume water absorption rate 10%, thermal conductivity 0.13W/mK, is a kind of ideal heat-preserving energy-saving wall material.

Claims (2)

1. red mud/attapulgite ceramsite concrete hollow insulation block, it is characterized in that, be made up of the raw material of following weight part: 42.5 ordinary Portland cement 105-115, stone fragment 500-550, red mud 20-30, attapulgite 8-12, spent pulping liquor 4-8, waste glass powder 3-5, coal dust 1-3, water glass 20-25, straw powder 8-12, whipping agent 3-5, oil foot 1-2, polyimide fiber 2-3, redispersible latex powder 0.5-1, water 160-200;
The preparation method of described red mud/attapulgite ceramsite concrete hollow insulation block comprises the following steps: (1) grinds to form 100-200 order powder through shredder after red mud and attapulgite being mixed, add spent pulping liquor, waste glass powder, coal dust again, stir, obtain form of spherical particles raw material through extrusion molding, cutting, granulation, particle diameter is 2-3mm; By particle raw material at room temperature dry 20-24h, then put into the 100-110 DEG C of dry 2-3h of thermostatic drying chamber, finally high-temperature roasting 1-1.5h at 1250-1350 DEG C, obtains red mud/attapulgite haydite;
(2) above-mentioned obtained red mud/attapulgite haydite is dropped in high-speed mixer, add water glass again, heating in water bath is to 80-90 DEG C, stir, then add straw powder, blended 3-5min under 2000-3000rpm rotating speed, finally send into granulation in tablets press, size controlling, at 2-3mm, obtains straw powder coated red mud/attapulgite haydite;
(3) above-mentioned obtained straw powder coated red mud/attapulgite haydite and 42.5 ordinary Portland cements, stone fragment, polyimide fiber, redispersible latex powder dry mixing 30-50s is got, make it mix, add water again and stir 3-5min, form mixed slurry;
(4) get whipping agent and add the foam that 12-16 water doubly obtains stable uniform after stirring 2-3min, stirring velocity 500-600/min, then the ratio of foam 45-55 milliliter is added in every 100 grams of batch mixings, obtained foam is passed in the batch mixing that step (3) obtains, after stirring, add oil foot again, after stirring 3-4min, namely obtain foamed slurry;
(5) be injected in building block mould by foamed slurry shaping, the demoulding after 2-3 days, namely obtains hollow heat-insulation building block finished product through vapor cure.
2. red mud/attapulgite ceramsite concrete hollow insulation block according to claim 1, is characterized in that, described whipping agent is made up of the 4-5:2-3:1 mixing by weight proportion of sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, gelatin.
CN201310123462.8A 2013-04-11 2013-04-11 A kind of red mud/attapulgite ceramsite concrete hollow insulation block and preparation method thereof Active CN103253907B (en)

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CN111302746B (en) * 2020-02-27 2021-05-11 山东大学 Red mud-based ceramsite concrete and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101736851A (en) * 2009-12-31 2010-06-16 王瑞燕 Red mud and aerated concrete building block and manufacturing method
CN102336579A (en) * 2010-07-26 2012-02-01 贵州省建筑材料科学研究设计院 Method for producing high-performance haydite from red mud
CN102887685A (en) * 2012-10-27 2013-01-23 盱眙县东强新型建材厂 Unfired attapulgite bed silt haydite thermal-insulation brick

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101736851A (en) * 2009-12-31 2010-06-16 王瑞燕 Red mud and aerated concrete building block and manufacturing method
CN102336579A (en) * 2010-07-26 2012-02-01 贵州省建筑材料科学研究设计院 Method for producing high-performance haydite from red mud
CN102887685A (en) * 2012-10-27 2013-01-23 盱眙县东强新型建材厂 Unfired attapulgite bed silt haydite thermal-insulation brick

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