CN102838374A - Foamed cement heat insulating material for exterior wall and preparation method thereof - Google Patents
Foamed cement heat insulating material for exterior wall and preparation method thereof Download PDFInfo
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- CN102838374A CN102838374A CN2012103433829A CN201210343382A CN102838374A CN 102838374 A CN102838374 A CN 102838374A CN 2012103433829 A CN2012103433829 A CN 2012103433829A CN 201210343382 A CN201210343382 A CN 201210343382A CN 102838374 A CN102838374 A CN 102838374A
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Abstract
The invention relates to a foamed cement heat insulating material for an exterior wall. The foamed cement heat insulating material is prepared by using the following raw materials in parts by weight: 150-250 parts of sulphoaluminate cement, 0-0.5 part of water reducing agent, 2-5 parts of waterproof agent, 7-13 part of foaming agent, 0.5-3 parts of foam stabilizer, 0.5-3 parts of fiber and 60-135 parts of water. The foamed cement heat insulating material for the exterior wall has the advantages of high economy and practicability, light weight, high strength, good heat insulating performance, high waterproof, fireproof and anti-freezing performance and long service life.
Description
Technical field
The invention belongs to building material field, relate to a kind of outer wall thermal insulation material and preparation method thereof, be specifically related to a kind of exterior wall with foaming cement thermal insulation material and preparation method thereof.
Background technology
The lagging material that the traditional external wall heat insulation system of China adopts generally is polystyrene foamed (EPS) or extruded polystyrene organic materialss such as (XPS); But these materials have exposed increasing problem in secular use; As be prone to agingly to come off, maintain and replace complicacy etc.; Especially in recent years by several fire disaster accidents of initiation, caused a large amount of loss of life and personal injury and property damage for country and society, suffer extensive query; Therefore, the cry of seeking a kind of green, durable, fire-retardant heat insulating material grows to even greater heights.
Foamed concrete is one type of special existence in the concrete family as a kind of inorganic materials, because the adjustability of its density in very big scope, the low density foam concrete can be used as lagging material and uses.China starts to walk early promptly be used for cast-in-situ thermal-insulated fields such as floor heating, roofing on a large scale from the nineties in 20th century, but the application in external wall heat insulation system seldom always about the research of foamed concrete.This is because limit by technical qualification on the one hand, and foamed concrete density and thermal conductivity are compared with the polyphenyl material and be still greatlyyer, and density is generally at 300kg/m
3More than, thermal conductivity is not less than 0.06 W/mK, causes ultra-traditional organic materialss far away such as foamed concrete plate thickness that the heat insulation effect that reaches identical need paste, quality.
Chinese patent CN102153363 discloses a kind of extremely-low density foamed concrete and preparation method thereof, by cement, chemical foaming agent, suds-stabilizing agent and water by mass ratio (130-180): (10.3-15.2): (0.1-1.8): (60-90) mix.This extremely-low density foamed concrete adopts the chemicalfoaming mode, suds-stabilizing agent is added in the aluminosulfate cement slip stir, and adds then to make after chemical foaming agent stirs back casting, natural curing.The dry apparent density of the extremely-low density foamed concrete that makes thus is 130-150kg/m
3, ultimate compression strength is greater than 0.10MPa, and thermal conductivity is lower than 0.10W/mK.The foamed concrete thermal conductivity of this method preparation is higher, and heat insulation effect is not so good, and ultimate compression strength is greater than 0.10MPa; Ultimate compression strength is low, is restricted in case foamed concrete shrinks, and then is very easy to cracking and damaged; Influence the normal use of foamed concrete, reduce work-ing life.
Patent CN102619316 discloses a kind of foamed concrete insulating decoration integral board for building exterior wall; Method is with behind silicate cement, polypropylene monofilament fiber, calcium stearate, re-dispersible glue powder, the sodium sulfate mixing; Add entry, trolamine, poly carboxylic acid, ydrogen peroxide 50 mixing successively, mould molding is processed inner thermal insulating layer; Behind silicate cement, polypropylene monofilament fiber, lignin fibre, water-fast rubber powder and Vltra tears mixing, add water and poly carboxylic acid mixing, spread upon on the side of inner thermal insulating layer, become the anti-crack and anti-seepage putty layer; With silicate cement, coarse whiting, silica sand, Vestolen PP 7052 pencil monfil, water-fast rubber powder and Vltra tears mixing, add to be coated on the anti-crack and anti-seepage putty layer behind entry, poly carboxylic acid and the pigment mixing and process outer decorative layer.The product ultimate compression strength 0.5-0. 6MPa that makes, tensile strength 0. 2-0. 3MPa.Its production process is complicated, and ultimate compression strength and tensile strength are lower, and splitting resistance is low, and is damaged easily, reduces work-ing life.
China is vast in territory, and different regional climates, environment difference are very big, vast western part and northern territory, and the very low dust storm of temperature in winter is big, and this has just proposed some special requirements to external-wall heat-insulation material in above-mentioned geographic application.In view of the foregoing; Method and principle from system science; Research and develop a kind of physical and mechanical property that had both had general external-wall heat-insulation material, have simultaneously lightweight, insulation, waterproof, function such as fire-resistant, freeze proof again concurrently, suitable application region is wide; The external-wall heat-insulation material of long service life is very necessary.
Summary of the invention
The purpose of this invention is to provide a kind of high-strength light, good heat insulating, the outer wall thermal insulation material that water-and fire-proof is freeze proof, with the deficiency that solves prior art with meet the need of market.
The present invention realizes through following technical scheme for realizing above-mentioned purpose:
A kind of exterior wall is used the foaming cement thermal insulation material, is processed by the raw material of following weight part: aluminate cement 150-250, water reducer 0-0.5, water-resisting agent 2-5, whipping agent 7-13, suds-stabilizing agent 0.5-3, fiber 0.5-3, water 60-135.
Described water reducer is poly carboxylic acid or naphthalene water reducer.
Described water-resisting agent is a waterproofing agent of organosilicon.
Described whipping agent is a ydrogen peroxide 50.
Described suds-stabilizing agent is one or more in calcium stearate, Sudan Gum-arabic, the sodium laurylsulfonate.
Described fiber is at least a in vinylon, the polypropylene fibre.
Described exterior wall is used the foaming cement thermal insulation preparation methods, comprises following steps:
A) cement and suds-stabilizing agent are mixed, add entry and stir 1-5min, add water reducer, water-resisting agent, it is even to slurry to stir 1-5min, slowly adds fiber then and stirs 1-3min extremely evenly;
B) in slurry, add whipping agent, stir 0.2-2min fast, treat that slurry just bubbles, rapidly mixture is packed in the mould with the warming plate preparation, cover with the warming plate insulated curing form removal behind the 3-72h, cutting, insulated curing above.
Water temperature in the preparation process is 35-45 ℃.
The rotating speed that stirs fast in the step b) is 2500-3500r/min.
Beneficial effect of the present invention is:
(1) exterior wall of the present invention uses foaming cement thermal insulation material staple to be inorganic materials, and fire line is good, belongs to A level non-combustible material; Long service life can reach and the same life-span of buildings.Through the test porosity is 80%-90%, and the hole of diameter 0.5-2mm in the aperture accounts for more than 80% of total hole, dry density 180-300kg/m
3, quality is light, is easy to paste cladding; Thermal conductivity 0.050-0.060W/mK, high insulating effect; Ultimate compression strength 0.5-1.2Mpa, intensity is high, low, the good endurance of goods breakage rate; The volume water absorption rate is less than 10%, and frost resistance is good, good endurance, good heat preservation performance.
(2) preparation exterior wall according to the invention with the foaming cement thermal insulation materials process in, control water temperature is at 35 ℃～45 ℃, in this TR, cement setting speed can reach consistent with steady bubble speed, can reach foaming effect preferably.Fiber adds behind cement, suds-stabilizing agent and suitable quantity of water mixing, can disperse better, avoids occurring the fiber aggregation phenomenon.In foaming slurry insulated curing, used mould is the warming plate material, and the mould of warming plate material can make full use of hydration heat, quickens the aquation process, helps to improve the lagging material early strength.
Embodiment
Come the present invention is done explanation further below in conjunction with embodiment,, but do not limit the present invention with this so that those skilled in the art more understands the present invention.
Embodiment 1
Prescription:
200 parts of aluminosulfate cements, 0.3 part of high-efficiency water-reducing agent of poly-carboxylic acid, 5 parts of waterproofing agent of organosilicon, 11 parts in ydrogen peroxide 50,3 parts of calcium stearates, 2 parts of vinylons, 105 parts in water.
The preparation method:
200 parts of aluminosulfate cements and calcium stearate are mixed for 3 parts; The warm water that adds 40 ℃ stirs 1-3min for 105 parts; Add 0.3 part of high-efficiency water-reducing agent of poly-carboxylic acid, 5 parts of waterproofing agent of organosilicon; It is even to slurry to stir 1-5min, slowly adds 2 parts of vinylons then and stirs 1-3min to even;
In slurry, add 11 parts in ydrogen peroxide 50, stir 0.2-2min fast, rotating speed is 2500r/min, treats that slurry just bubbles, and rapidly mixture is packed in the mould with the warming plate preparation, covers with the warming plate insulated curing form removal behind the 3-72h, cutting, insulated curing above.
Embodiment 2
Prescription:
150 parts of aluminosulfate cements, 0.5 part of naphthalene series high-efficiency water-reducing agent, 3 parts of waterproofing agent of organosilicon, 7 parts in ydrogen peroxide 50,0.5 part of Sudan Gum-arabic, 0.5 part of polypropylene fibre, 60 parts in water.
The preparation method:
150 parts of aluminosulfate cements and 0.5 part of Sudan Gum-arabic are mixed; 60 parts in the warm water that adds 42 ℃; Stir 1-3min; Add 0.5 part of naphthalene series high-efficiency water-reducing agent, 3 parts of waterproofing agent of organosilicon, it is even to slurry to stir 1-5min, slowly adds 0.5 part of polypropylene fibre then and stirs 1-3min to even;
In slurry, add 7 parts in ydrogen peroxide 50, stir 0.2-2min fast, rotating speed is 3000r/min, treats that slurry just bubbles, and rapidly mixture is packed in the mould with the warming plate preparation, covers with the warming plate insulated curing form removal behind the 3-72h, cutting, insulated curing above.
Embodiment 3:
Prescription:
250 parts of aluminosulfate cements, 2 parts of waterproofing agent of organosilicon, 13 parts in ydrogen peroxide 50,1.75 parts of sodium laurylsulfonates, 1.75 parts of vinylons, 135 parts in water.
The preparation method:
250 parts of aluminosulfate cements and 1.75 parts of sodium laurylsulfonates are mixed; The 135 parts of water of warm water that add 38 ℃ stir 1-3min; Add 2 parts of waterproofing agent of organosilicon, it is even to slurry to stir 1-5min, slowly adds 1.75 parts of vinylons then and stirs 1-3min to even;
In slurry, add 13 parts in ydrogen peroxide 50, stir 0.2-2min fast, rotating speed is 3500r/min, treats that slurry just bubbles, and rapidly mixture is packed in the mould with the warming plate preparation, covers with the warming plate insulated curing form removal behind the 3-72h, cutting, insulated curing above.
The performance perameter of the lagging material that makes among the above embodiment is following:
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Porosity (%) | 88 | 90 | 80 |
| 0.5-2mm the ratio of diametric hole (%) | 90 | 86 | 88 |
| Dry density (kg/m 3） | 210 | 190 | 260 |
| Thermal conductivity | 0.052 | 0.049 | 0.060 |
| Ultimate compression strength (Mpa) | 0.6 | 0.5 | 1.0 |
| Volume water absorption rate % | 2 | 5 | 7 |
This inventive method is simple, is prone to produce, and its good product quality, through test, porosity is 80%-90%, the hole of diameter 0.5-2mm in the aperture accounts for more than 80% of total hole, dry density 180-300kg/m3, the light-weight material helps external wall construction; Thermal conductivity 0.050-0.060 W/mK; Ultimate compression strength 0.5-1.2Mpa; The volume water absorption rate is less than 10%.
Performance perameter data through in the form can know that the comprehensive physicals of outer wall thermal insulation material of the present invention is better, and its basic mechanical property all surpasses general lagging material.
Claims (9)
1. an exterior wall is used the foaming cement thermal insulation material, it is characterized in that, is processed by the raw material of following weight part: aluminosulfate cement 150-250, water reducer 0-0.5, water-resisting agent 2-5, whipping agent 7-13, suds-stabilizing agent 0.5-3, fiber 0.5-3, water 60-135.
2. exterior wall according to claim 1 is used the foaming cement thermal insulation material, it is characterized in that, described water reducer is poly carboxylic acid or naphthalene water reducer.
3. exterior wall according to claim 1 is used the foaming cement thermal insulation material, it is characterized in that, described water-resisting agent is a waterproofing agent of organosilicon.
4. exterior wall according to claim 1 is used the foaming cement thermal insulation material, it is characterized in that, described whipping agent is a ydrogen peroxide 50.
5. exterior wall according to claim 1 is used the foaming cement thermal insulation material, it is characterized in that, described suds-stabilizing agent is one or more in calcium stearate, Sudan Gum-arabic, the sodium laurylsulfonate.
6. exterior wall according to claim 1 is used the foaming cement thermal insulation material, it is characterized in that, described fiber is at least a in vinylon, the polypropylene fibre.
7. exterior wall according to claim 1 is used the foaming cement thermal insulation preparation methods, it is characterized in that, comprises following steps:
A) cement and suds-stabilizing agent are mixed, add entry and stir 1-5min, add water reducer, water-resisting agent, it is even to slurry to stir 1-5min, slowly adds fiber then and stirs 1-3min extremely evenly;
B) in slurry, add whipping agent, stir 0.2-2min fast, treat that slurry just bubbles, rapidly mixture is packed in the mould with the warming plate preparation, cover with the warming plate insulated curing form removal behind the 3-72h, cutting, insulated curing above.
8. exterior wall according to claim 7 is used the foaming cement thermal insulation preparation methods, it is characterized in that, the temperature of said water is 35-45 ℃.
9. exterior wall according to claim 7 is used the foaming cement thermal insulation preparation methods, it is characterized in that, the rotating speed that stirs fast in the said step b) is 2500-3500r/min.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232209A (en) * | 2013-04-25 | 2013-08-07 | 董源 | Inorganic fiber hard foam-plastic heat-insulating material and preparation method thereof |
| CN103253897A (en) * | 2013-05-04 | 2013-08-21 | 髙吉才 | Inflaming retarding heat preservation plate and production technology thereof |
| CN103553506A (en) * | 2013-09-25 | 2014-02-05 | 沈阳建筑大学 | Method for preparing fiber-enhanced foam concrete |
| CN103643760A (en) * | 2013-12-27 | 2014-03-19 | 中国建筑材料科学研究总院 | Foam cement filling type concrete composition heat preservation building block and manufacturing method thereof |
| CN104261858A (en) * | 2014-08-27 | 2015-01-07 | 重庆市胡特建材有限公司 | Modified foaming cement insulation plate and preparation method thereof |
| CN104496357A (en) * | 2014-12-25 | 2015-04-08 | 江西佰科建筑节能材料有限公司 | A-class fireproof foaming heat insulation board and preparation method thereof |
| CN106242427A (en) * | 2016-08-01 | 2016-12-21 | 太仓顺如成建筑材料有限公司 | A kind of kieselguhr heat-insulation and heat-preservation construction material |
| CN106365671A (en) * | 2016-08-29 | 2017-02-01 | 江苏金贸科技发展有限公司 | Low-stress high-strength anti-cracking inorganic thermal-insulation board |
| CN106565182A (en) * | 2015-10-09 | 2017-04-19 | 天津奇才科技发展有限公司 | High fire retardation type sulphoaluminate porous thermal insulation plate |
| CN106747587A (en) * | 2017-01-16 | 2017-05-31 | 广州市轻能建材有限公司 | A kind of foam cement preparation method |
| CN109896867A (en) * | 2017-12-07 | 2019-06-18 | 顾世章 | A kind of compound prescription that cast-in-situ wall is cement foamed and technical process |
| CN111021175A (en) * | 2020-01-19 | 2020-04-17 | 马建生 | Construction method of heat-preservation roadbed |
| CN113735536A (en) * | 2021-09-09 | 2021-12-03 | 泸州时为节能科技有限公司 | High-early-strength binary system energy-saving insulation board and production method thereof |
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| CN101139195A (en) * | 2007-08-24 | 2008-03-12 | 吴家根 | Method for preparing inorganic heat preservation insulating board |
| CN102515838A (en) * | 2011-12-21 | 2012-06-27 | 浙江省建筑科学设计研究院有限公司 | Lightweight aggregate foam concrete warming plate with low shrinkage and low water absorption |
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| CN1354076A (en) * | 2001-12-28 | 2002-06-19 | 杨小平 | Production method of composite silicate hard heat-insulating plate |
| CN101139195A (en) * | 2007-08-24 | 2008-03-12 | 吴家根 | Method for preparing inorganic heat preservation insulating board |
| CN102515838A (en) * | 2011-12-21 | 2012-06-27 | 浙江省建筑科学设计研究院有限公司 | Lightweight aggregate foam concrete warming plate with low shrinkage and low water absorption |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232209A (en) * | 2013-04-25 | 2013-08-07 | 董源 | Inorganic fiber hard foam-plastic heat-insulating material and preparation method thereof |
| CN103232209B (en) * | 2013-04-25 | 2015-07-08 | 董源 | Inorganic fiber hard foam-plastic heat-insulating material and preparation method thereof |
| CN103253897A (en) * | 2013-05-04 | 2013-08-21 | 髙吉才 | Inflaming retarding heat preservation plate and production technology thereof |
| CN103553506A (en) * | 2013-09-25 | 2014-02-05 | 沈阳建筑大学 | Method for preparing fiber-enhanced foam concrete |
| CN103553506B (en) * | 2013-09-25 | 2016-04-13 | 沈阳建筑大学 | The concrete preparation method of a kind of fiber enhanced foam |
| CN103643760B (en) * | 2013-12-27 | 2015-08-19 | 中国建筑材料科学研究总院 | A kind of foam cement fill-type concrete composite heat insulation building blocks and manufacture method thereof |
| CN103643760A (en) * | 2013-12-27 | 2014-03-19 | 中国建筑材料科学研究总院 | Foam cement filling type concrete composition heat preservation building block and manufacturing method thereof |
| CN104261858B (en) * | 2014-08-27 | 2015-10-14 | 重庆市胡特建材有限公司 | A kind of modified foaming cement heat preserving plate and preparation method thereof |
| CN104261858A (en) * | 2014-08-27 | 2015-01-07 | 重庆市胡特建材有限公司 | Modified foaming cement insulation plate and preparation method thereof |
| CN104496357A (en) * | 2014-12-25 | 2015-04-08 | 江西佰科建筑节能材料有限公司 | A-class fireproof foaming heat insulation board and preparation method thereof |
| CN104496357B (en) * | 2014-12-25 | 2017-01-18 | 江西佰科建筑节能材料有限公司 | A-class fireproof foaming heat insulation board and preparation method thereof |
| CN106565182A (en) * | 2015-10-09 | 2017-04-19 | 天津奇才科技发展有限公司 | High fire retardation type sulphoaluminate porous thermal insulation plate |
| CN106242427A (en) * | 2016-08-01 | 2016-12-21 | 太仓顺如成建筑材料有限公司 | A kind of kieselguhr heat-insulation and heat-preservation construction material |
| CN106365671A (en) * | 2016-08-29 | 2017-02-01 | 江苏金贸科技发展有限公司 | Low-stress high-strength anti-cracking inorganic thermal-insulation board |
| CN106747587A (en) * | 2017-01-16 | 2017-05-31 | 广州市轻能建材有限公司 | A kind of foam cement preparation method |
| CN109896867A (en) * | 2017-12-07 | 2019-06-18 | 顾世章 | A kind of compound prescription that cast-in-situ wall is cement foamed and technical process |
| CN111021175A (en) * | 2020-01-19 | 2020-04-17 | 马建生 | Construction method of heat-preservation roadbed |
| CN113735536A (en) * | 2021-09-09 | 2021-12-03 | 泸州时为节能科技有限公司 | High-early-strength binary system energy-saving insulation board and production method thereof |
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Application publication date: 20121226 |