CN101497517A - Haydite autoclaved aerated concrete and production method - Google Patents

Haydite autoclaved aerated concrete and production method Download PDF

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Publication number
CN101497517A
CN101497517A CNA2009100251850A CN200910025185A CN101497517A CN 101497517 A CN101497517 A CN 101497517A CN A2009100251850 A CNA2009100251850 A CN A2009100251850A CN 200910025185 A CN200910025185 A CN 200910025185A CN 101497517 A CN101497517 A CN 101497517A
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CN
China
Prior art keywords
haydite
admixture
mould
concrete
powder
Prior art date
Application number
CNA2009100251850A
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Chinese (zh)
Inventor
朱德才
蔡世杰
陈荣华
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朱德才
蔡世杰
陈荣华
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Publication date
Application filed by 朱德才, 蔡世杰, 陈荣华 filed Critical 朱德才
Priority to CNA2009100251850A priority Critical patent/CN101497517A/en
Publication of CN101497517A publication Critical patent/CN101497517A/en

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/18Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a ceramsite autoclaved aerated concrete and a production method. The concrete consists of ceramsite, coal ash, sand, quartz tailing powder or silicon slag, lime, cement, gypsum, aluminum powder or aluminum paste powder, and admixture. The production method comprises the steps of measuring raw materials, blending and stirring, pouring and feeding a die, generating gas by static electricity, mold stripping, autoclaving, mechanical cutting and the like. The concrete has precise dimension and good performance.

Description

Haydite autoclaved aerated concrete and production method

Technical field:

The present invention relates to a kind of gas concrete and production method.

Background technology:

Existing gas concrete, all there is defective in the size poor accuracy at aspects such as weathering resistance, weather resistance, shock resistances.

Summary of the invention:

The object of the present invention is to provide a kind of size is accurate, performance is good haydite autoclaved aerated concrete and production method.

Technical solution of the present invention is:

A kind of haydite autoclaved aerated concrete is characterized in that: be made up of following components in weight percentage:

Haydite 5~75%

Flyash, sand, quartzy mine tailing or silicon slag 8~75%

Lime 8~40%

Cement 5~30%

Gypsum 1~8%

Aluminium powder or aluminium cream powder 0.03~0.1%

Admixture 0~5%.

Admixture is one or more in the JM series concrete admixture, suds-stabilizing agent, little swollen dose, economization agent, water reducer, exciting agent, setting accelerator, accelerator for hardening, and the consumption of admixture is 2~5%.

A kind of production method of haydite autoclaved aerated concrete is characterized in that: comprise the following steps:

(1) measuring raw materials: starting material are pressed column weight amount per-cent measure:

Haydite 5~75%

Flyash, sand, quartzy mine tailing and/or silicon slag 8~75%

Lime 8~40%

Cement 5~30%

Gypsum 1~8%

Aluminium powder or aluminium cream powder 0.03~0.1%

Admixture 0~5%;

(2) batching stirs: by said ratio with flyash, sand, quartzy mine tailing and/or silicon slag (be in flyash, sand, quartzy mine tailing, the silicon slag one or more) adding gypsum, and add water and make slurry, add haydite again, stir, add lime, cement, admixture and aluminium powder or aluminium cream powder again, be mixed into slurry;

(3) be poured into mould: the slurry of making is poured into mould;

(4) static is got angry, the demoulding, steaming press: will be poured into the mould that the mould of mould sends into and send into the quiet curing room that stops, and get angry and the back demoulding that begins to harden at slurry, and send into autoclave and handle, the autoclave pressure of steaming when pressing is 0.8~1.5MPa;

(5) base substrate that goes out behind the still is transported to the cut mechanically platform, cuts into product.

Product size of the present invention is accurate, performance good.

The present invention adds haydite in the common steam-pressing aero-concrete as aggregate, through steaming pressure, cut mechanically, the high performance ceramsite steam-pressing aero-concrete that produces has produced the characteristic that has more excellence than common steam-pressing aero-concrete and the quiet haydite aerated concrete that stops maintenance etc.

1, the aggregate haydite is through mechanical pelleting; the rotary kiln roasting forms; stable materials such as its rough extexine silicon oxide, ferric oxide have formed protective membrane; melikaria has been formed by a plurality of pores that do not run through mutually in film inside, thereby makes that haydite has that unit weight is light, intensity is high, water-intake rate is little, fire resistant heat preserving, steady performance.

2, intensity is higher than existing gas concrete.Because the intensity height of haydite own, the concrete crushing strength that adopts haydite to make can reach CL60, can reach 10Mpa so mix the intensity of the steam-pressing aero-concrete of making behind the haydite, even up to 20Mpa.Masonry is through pull-out bond test, suspension force test, mechanical property test, and every index is all built a wall above the reality of clay brick, also has good toughness simultaneously, when nailing, the sensation identical with this material is arranged.

3, haydite has extremely low shrinking percentage, exists hardly and shrinks, and adds in the gas concrete, has reduced the shrinking percentage of product significantly, and drying shrinkage only is 0.49mm/m, can also be lower through the particular requirement manufacturing, and over dry shrinking percentage and clay solid brick.

4, in light weight.Unit weight 300-the 500kg/m of haydite own 3, and the dry volume density that is used for the gas concrete commonly used of body of wall is 625-825kg/m 3, mix the haydite that is lower than this unit weight, alleviated the volume density of gas concrete greatly.

5, heat-insulation and heat-preservation.Thermal conductivity only is 0.11-0.18W/m.K, the thermal conductivity of other high performance ceramsite gas concrete of low density level then<0.11W/m.K, better meet energy-conservation requirement more than 65%.

6, suitable water ratio.Common gas concrete go out the still water ratio between 30 ~ 40%, because haydite itself does not absorb water, mix in the gas concrete, it goes out still water ratio only about 25%, the very fast controlling index that goes up wall water ratio (generally in 15 ~ 20%) near regulation after parked, water ratio easy to control is particularly suitable for construction.

7, stronger impermeability.The internal porosity of haydite own does not run through mutually, and water-intake rate is little, and its impermeability test result is better than existing national standard.

8, Jing Mi size.Because the gas concrete of existing production is to adopt the steel wire cutting when no intensity, and the production of high performance ceramsite steam-pressing aero-concrete is high-pressure steaming and cultivating behind blank forming, when going out still and reaching design strength, adopt cut mechanically, its scale error is little, can be accurate in the 1mm, common gas concrete manufacturing process can't realize.Accurate size can effectively guarantee the requirement of wall size and control gray seam thickness.As make building block and build a wall, mortar joint is controlled in the 3mm, adopts dedicated mortar (comprising brushing gypsum) dry construction, then can realize the requirements at the higher level of building energy conservation more than 65%.

9, the cutting back forms graceful outward appearance.The formed pattern in high performance ceramsite steam-pressing aero-concrete cutting back has similar zebra-stripe effect, need not to modify promptly to can be used as architectural decoration.

10,, can guarantee metope not hollowing, crack not because the uneven surface that haydite cutting back forms and other characteristic of figuline building blocks are made building block or wallboard, and body of wall very easily whitewashes.Play " breathing wall " effect, prevent and treat common quality defect effectively.

11, the high performance ceramsite steam-pressing aero-concrete also has sound insulation, sound absorption, fire-resistant, antidetonation, frost resistance, weather resistance (being consistent with the building Life cycle), environmental protection, sharp advantage such as useless, and its waste material is reusable edible still.

12, cost performance is good.Reduce the buildings deadweight, reduce the foundation expense.Owing to be building energy conservation self-heat conserving technical products, be better than external-wall heat-insulation material etc., reduce the secondary maintenance maintenance, thereby especially reduced the buildings comprehensive cost.

The invention will be further described below in conjunction with embodiment.

Embodiment:

Embodiment 1:

A kind of production method of haydite autoclaved aerated concrete comprises the following steps:

(1) measuring raw materials: starting material are pressed column weight amount per-cent measure:

(the employing capacity is 500kg/m to haydite 3Haydite) 26.6%

Flyash 44.72%

Lime 16%

Cement 6.6%

Gypsum 4%

Aluminium powder 0.08%

Admixture (JM type concrete admixture) 2%;

(2) batching stirs: by said ratio flyash is added gypsum, and add water and make slurry, add haydite again, stir, add lime, cement, admixture and aluminium powder again, be mixed into slurry;

(3) be poured into mould: the slurry of making is poured into mould;

(4) static is got angry, the demoulding, steaming press: will be poured into mould that the mould of mould sends into and send into the quiet curing room that stops more than 35 ℃, the demoulding after slurry is got angry and begun to harden, sending into autoclave handles, autoclave pressure when steam pressing is 0.8~1.5MPa, goes out still steam the intensification, constant temperature, temperature-fall period of pressure method through routine after;

(5) base substrate that goes out behind the still is transported to the cut mechanically platform, cuts into product according to required specification.

Embodiment 2:

A kind of production method of haydite autoclaved aerated concrete, starting material are pressed column weight amount per-cent and are measured:

Haydite 50%

Sand, quartzy mine tailing or silicon slag 15%

Lime 10%

Cement 20%

Gypsum 1%

Aluminium cream powder 0.03%

Admixture 3.97%; All the other are with embodiment 1.

Described admixture is one or more in the JM series concrete admixture, suds-stabilizing agent, little swollen dose, economization agent, water reducer, exciting agent, setting accelerator, accelerator for hardening.

Embodiment 3:

A kind of production method of haydite autoclaved aerated concrete, starting material are pressed column weight amount per-cent and are measured:

Haydite 71.95%

Sand and silicon slag (both consumptions are identical) 8%

Lime 8%

Cement 5%

Gypsum 7%

Aluminium cream powder 0.05%; All the other are with embodiment 1.

Embodiment 4:

A kind of production method of haydite autoclaved aerated concrete, starting material are pressed column weight amount per-cent and are measured:

Haydite 6%

Sand and silicon slag (both consumptions are identical) 70%

Lime 9%

Cement 12.9%

Gypsum 2%

Aluminium cream powder 0.1%; All the other are with embodiment 1.

Embodiment 5:

A kind of production method of haydite autoclaved aerated concrete, starting material are pressed column weight amount per-cent and are measured:

Haydite 15%

Sand and silicon slag (both consumptions are identical) 13.94%

Lime 38%

Cement 28%

Gypsum 5%

Aluminium cream powder 0.06%; All the other are with embodiment 1.

In the above-described embodiments, when cast, put into the net muscle in the mould, can make sheet material and decorate material.

Claims (3)

1, a kind of haydite autoclaved aerated concrete is characterized in that: be made up of following components in weight percentage:
Haydite 5~75%
Flyash, sand, quartzy mine tailing and/or silicon slag 8~75%
Lime 8~40%
Cement 5~30%
Gypsum 1~8%
Aluminium powder or aluminium cream powder 0.03~0.1%
Admixture 0~5%.
2, haydite autoclaved aerated concrete according to claim 1, it is characterized in that: admixture is one or more in the JM series concrete admixture, suds-stabilizing agent, little swollen dose, economization agent, water reducer, exciting agent, setting accelerator, accelerator for hardening, and the consumption of admixture is 2~5%.
3, a kind of production method of haydite autoclaved aerated concrete is characterized in that: comprise the following steps:
(1) measuring raw materials: starting material are pressed column weight amount per-cent measure:
Haydite 5~75%
Flyash, sand, quartzy mine tailing and/or silicon slag 8~75%
Lime 8~40%
Cement 5~30%
Gypsum 1~8%
Aluminium powder or aluminium cream powder 0.03~0.1%
Admixture 0~5%;
(2) batching stirs: by said ratio flyash, sand, quartzy mine tailing and/or silicon slag are added gypsum, and add water and make slurry, add haydite again, stir, add lime, cement, admixture and aluminium powder or aluminium cream powder again, be mixed into slurry;
(3) be poured into mould: the slurry of making is poured into mould;
(4) static is got angry, the demoulding, steaming press: will be poured into the mould that the mould of mould sends into and send into the quiet curing room that stops, and get angry and the back demoulding that begins to harden at slurry, and send into autoclave and handle, the autoclave pressure of steaming when pressing is 0.8~1.5MPa;
(5) base substrate that goes out behind the still is transported to the cut mechanically platform, cuts into product.
CNA2009100251850A 2009-02-23 2009-02-23 Haydite autoclaved aerated concrete and production method CN101497517A (en)

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CN102434010A (en) * 2011-09-23 2012-05-02 李益冉 Mushroom-shaped energy-saving environment-friendly building
CN102503522A (en) * 2011-09-23 2012-06-20 宁波平海建材有限公司 Energy-saving self-heat-insulation ceramsite building block and its manufacturing method and forming mould
CN102503527A (en) * 2011-10-31 2012-06-20 赤峰鑫海节能建材有限公司 Yttrium-element autoclaved aerated concrete block and preparation method thereof
CN102584088A (en) * 2012-02-21 2012-07-18 张素霞 Special admixture for autoclaved aerated concrete block
CN102690127A (en) * 2012-06-13 2012-09-26 江苏建华新型墙材有限公司 Preparation method of light wall material
CN102924026A (en) * 2012-10-19 2013-02-13 叶香竹 Preparation method of aerated concrete
RU2484062C1 (en) * 2012-02-09 2013-06-10 Юлия Алексеевна Щепочкина Raw mixture for manufacture of gas concrete
CN103193431A (en) * 2012-09-03 2013-07-10 上海舟润实业有限公司 Quartz tailing autoclaved aerated concrete building block and preparation method thereof
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CN102503522A (en) * 2011-09-23 2012-06-20 宁波平海建材有限公司 Energy-saving self-heat-insulation ceramsite building block and its manufacturing method and forming mould
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CN105218057A (en) * 2015-11-03 2016-01-06 石河子大学 A kind of green lightweight aggregate concrete and preparation technology thereof
CN105218057B (en) * 2015-11-03 2017-09-15 石河子大学 A kind of green lightweight aggregate concrete and its preparation technology
CN106116321A (en) * 2016-06-15 2016-11-16 滕启芳 A kind of light ceramic foam concrete plate and preparation method thereof
CN106316317A (en) * 2016-08-04 2017-01-11 徐州工程学院 Air-entrapping ceramsite concrete under ultra-high vapor pressure and preparation method thereof
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