CN103086734A - Inorganic foamed concrete insulation board and preparation method thereof - Google Patents
Inorganic foamed concrete insulation board and preparation method thereof Download PDFInfo
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- CN103086734A CN103086734A CN2011103419051A CN201110341905A CN103086734A CN 103086734 A CN103086734 A CN 103086734A CN 2011103419051 A CN2011103419051 A CN 2011103419051A CN 201110341905 A CN201110341905 A CN 201110341905A CN 103086734 A CN103086734 A CN 103086734A
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Abstract
The invention provides an inorganic foamed concrete insulation board and a preparation method thereof. The insulation board comprises foamed concrete, and has density of 160-250kg / m<3>, compressive strength of 0.3-0.5 MPa, and coefficient of thermal conductivity of 0.05-0.062 W / m.K. The prepared insulation board has the characteristics of low unit weight and good heat insulation effect, and can be widely used as an insulation material in the field of construction.
Description
Technical field
The present invention relates to a kind of lagging material and preparation method thereof, especially a kind of inorganic foaming concrete heat-insulating board and preparation method thereof.
Background technology
Foamed concrete claims again foamed concrete, is the mode by chemistry or physics, according to using needs, nitrogen, carbonic acid gas, oxygen or air are introduced in concrete mortar, through overmolding, reasonable maintenance, made to form the concrete product that contains a large amount of holes and have some strength.Foamed concrete can be divided into cement foam concrete, pore magnesite foam concrete, gypsum foamed concrete, volcano grey matter consolidating material foamed concrete by forming consolidating material; Kind by main filler used can be divided into fly ash foam concrete, slag foamed concrete, straw foam concrete; By density, generally can be divided into six grades, i.e. 300kg%m
3, 400kg%m
3, 500kg%m
3, 600kg%m
3, 700kg%m
3, 800kg%m
3By using function, can be divided into thermal-insulating type, insulation construction type, structure-type; The room be can be divided into by Application Areas and foamed concrete, gardens foamed concrete, engineering foamed concrete, industrial foamed concrete built; Press maintenance method, can be divided into natural curing foamed concrete, vapor cure foamed concrete, steam press maintenance foamed concrete.
The introducing of bubble makes foamed concrete possess light weight, the advantage of levelling automatically, and its heat insulation performance also significantly improves, and construction carries more conveniently, has not only reduced the goods cost, and has expanded greatly the Application Areas of cement products.
The raw material of foamed concrete mainly contains cement, aggregate (auxiliary agent) and whipping agent.Cement is one of main raw material of foamed concrete, plays cohesive action.The cement setting intensity of different labels is different with time of coagulation, even the cement of same numeral, due to the difference of manufacturer, its composition also there are differences.Therefore, in principle, to the same whipping agent, must on the basis of lab scale, could construct on a large scale.
Aggregate can be sand, haydite, float stone, pearlstone, flyash and ironmaking slag etc. according to the purposes needs, and wherein flyash and ironmaking slag belong to utilization of waste material, and tool application and development is worth.
Whipping agent is pore forming material, suds-stabilizing agent, tie up the general name of the auxiliary agents such as aqua.Pore forming material is can
Chemical reaction occurs and produce the material of gas.Suds-stabilizing agent refers to have the tensio-active agent of steady bubble effect, as dodecyl phenenyl sulfate, protein hydrolysate etc.Tie up the auxiliary agent such as aqua and refer to that those can be with the tensio-active agent water-wet side by interaction of hydrogen bond, and the material of strong adsorption water molecules and bubble surface, as polyacrylamide, gum arabic etc.Generally speaking, the whipping agent that simple a kind of material forms is difficult to make high-performance, low-density foamed concrete.Just introduce the mode of gas, the foaming mode can be divided into two classes: physical blowing (also claiming inorganic foamed) and chemical foaming.Physical blowing is namely with mechanical method, air, nitrogen, hydrogen, carbon dioxide gas or oxygen to be incorporated in the slurry that is formed by cement, aggregate, suds-stabilizing agent and water, makes it to form a metastable system.The steady time of this metastable system should be greater than the presetting period of cement.Chemical foaming agent is the material (pore forming material) that chemical reaction can occur and produce object gas with cement, aggregate, suds-stabilizing agent, ties up aqua and water is mixed together evenly, casting then, controlling temperature makes the pore forming material reaction produce bubble, its best response behaviour is reaction hardly during mixing moulding, and after moulding and progressively reflected complete before the cement initial set.By above analysis as seen, physical blowing requires high to the requirement of suds-stabilizing agent (also often generally being called whipping agent in production) than chemical foaming.That is to say with same suds-stabilizing agent, adopt chemical foaming more quite a lot of than the concrete quality that physical blowing makes.But chemical foaming is harsher to the requirement of temperature, time.The cement blowing agent of early application is more single, as rosined soap, dodecyl phenenyl sulfate (the real suds-stabilizing agent that belongs to).In the situation that introduce gas with machinery, although their foam expansion is high, foam stability is poor, is difficult to make 1g/cm
3Following foamed concrete.Later stage is used protein type whipping agent (being got by animal hoof and foot, blood, hair-hydrolyzation), although foam expansion is not as the former, but because it has steady bubble concurrently, ties up water function, thereby make foam longer the steady time in grout, the foamed concrete that makes is also better.The cement blowing agent that current people use, mostly through the composite product that forms, as CON～A type foaming agent, CCW～95 type solid blowing agents, U-shaped whipping agent, HJ～3 type vitriol series micro-bubble agents, Japan product protein type whipping agent Escort K and Qinghai 3% type whipping agent etc. according to physical and chemical principle.
The preparation technology of foamed concrete mainly contains chemical foaming technology (Fig. 1) and physical blowing technique (Fig. 2).As shown in Figure 1, used mechanical fairly simple of chemical foaming technology is exactly stirrer and transferpump, still basically, due to grout after cast, before initial set, pore forming material continues to produce bubble, thereby has expansion, therefore chemical foaming technology is multiplex in occasions such as filling, leak stopping, reinforcings, when being used for making warming plate, due to harsher to the requirement of temperature, time, so yield rate is low, and is unsuitable for scale operation.Therefore physical blowing technique, select degree of freedom large due to the interaction that need not to consider whipping agent and suds-stabilizing agent, and preparation speed is fast, and is multiplex in fields such as floor heating, Horizon, roof side slope, precoated plates.Physical blowing technique has been Duoed air compressor and frothing machine than chemical foaming technology, the concrete foaming machine of existing various employing physical blowing technique on the market at present, and its principle and structure are basic identical, all comprise transferpump, frothing machine and air compressor machine.The key distinction of various concrete foaming machines is that wherein frothing machine is different, but existing various concrete foaming machine all exists the shortcomings such as warming plate unit weight is high, thermal conductivity is poor, time of coagulation is long, easily subside when using physical blowing technique at the processing warming plate.
Summary of the invention
The present invention be directed to the technical problems such as the warming plate unit weight that exists in the conventional physical foamed concrete warming plate course of processing is high, thermal conductivity is poor, time of coagulation is long, easily subside, a kind of novel inorganic foamed concrete warming plate and preparation method thereof is provided.
A kind of inorganic foaming concrete heat-insulating board provided by the invention contains concrete, and the density of warming plate is 160～250kg/m
3, ultimate compression strength is 0.3～0.5MPa, thermal conductivity is 0.05～0.062W/m.K.
The preferred technical scheme of the present invention is that the density of warming plate is 180～230kg/m
3
the preparation method of a kind of inorganic foaming concrete heat-insulating board provided by the invention, comprise the steps: A: with cement, after mixing, water and auxiliary agent once be stirred to evenly, obtain once stirring thing, described auxiliary agent comprises toughener, hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearate, the weight ratio of described cement and water is: 1: 0.6～0.7, described toughener is 0.1～0.5: 1 with the weight of cement ratio, described hardening accelerator, described calcium formiate, described water reducer, described water-resisting agent and described calcium stearate are with described weight of cement ratio: 0.2%～0.5%: 1, B: the above-mentioned thing that once stirs is pulverized, obtained crushed material, C: add fiber and carry out secondary stirring to evenly in above-mentioned crushed material, obtain the secondary stirring thing, described fiber with described weight of cement ratio is: 0.1%～0.3%: 1, D: above-mentioned secondary stirring thing is poured into a mould after by physical blowing, obtained goods.
The length that the further preferred technical scheme of the present invention is fiber is 4～7mm.
The present invention's scheme of further optimization technique again is that toughener is latex powder or industrial emulsion.
In preparation technology of the present invention, the function of toughener is to improve the intensity of warming plate, and the effect of fiber is to strengthen the resistance to fracture of warming plate.
The present invention, before foaming, pulverizes after concrete-agitating owing to adopting above-mentioned technique, makes concrete particle minimum, thereby fully and equably is suspended in water, and make subsequently concrete uniform in foaming, without sedimentation phenomenon.Make like this warming plate keeping the low-density while, improved pressure resistance, insulation and soundproof effect, and the technical problem that has effectively solved sedimentation in the production process and subsided.
Inorganic foaming concrete heat-insulating board density of the present invention is little, and thermal conductivity is little, so unit weight is little and high insulating effect.
Description of drawings
Fig. 1 is the schema of traditional chemical foaming technology.
Fig. 2 is the schema of traditional physics (inorganic) foam process.
Fig. 3 is the schema of physical blowing technique of the present invention.
Embodiment
Now, the embodiment that present invention will be described in detail with reference to the accompanying.
Fig. 3 is the schema of physical blowing technique of the present invention.
As shown in the figure, at first, cement is mixed with water, auxiliary agent (toughener, hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearate), and stir (one-time mechanical stirring); The mixture of described cement, water and auxiliary agent after then stirring is pulverized; Then add fiber in the mixture after pulverizing and stir (secondary mechanical stirring); The mixture of cement, water, auxiliary agent and fiber after stirring is passed through to inject mould (cast) after mechanical foaming (namely foaming by concrete foaming machine).
Embodiment 1:
With No. 32.5 cement, water, latex powder, hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearates according to 1: 0.6: 0.1: 0.2%: 0.2%: 0.2%: the weight ratio of 0.2%: 0.2% was mixed, and once was stirred to evenly; Then, will stir thing pulverizes; Then, will carry out secondary stirring after crushed material and blending in of fibers to even, described fiber is 0.1%: 1 with described weight of cement ratio, afterwards the secondary stirring thing is foamed by concrete foaming machine, pours into a mould afterwards.
Embodiment 2:
With No. 32.5 cement, water, latex powder, hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearates according to 1: 0.7: 0.5: 0.5%: 0.5%: 0.5%: the weight ratio of 0.5%: 0.5% was mixed, and once was stirred to evenly; Then, will stir thing pulverizes; Then will carry out secondary stirring after crushed material and blending in of fibers to even, described fiber is 0.3%: 1 with described weight of cement ratio, afterwards the secondary stirring thing is foamed by concrete foaming machine, then pours into a mould.
Embodiment 3:
With No. 32.5 cement, water, industrial emulsion, hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearates according to 1: 0.65: 0.3: 0.4%: 0.4%: 0.4%: the weight ratio of 0.4%: 0.4% was mixed, and once was stirred to evenly; Then, will stir thing pulverizes; Then will carry out secondary stirring after crushed material and blending in of fibers to even, described fiber is 0.2%: 1 with described weight of cement ratio, afterwards the secondary stirring thing is foamed by concrete foaming machine, then pours into a mould.
Embodiment 4: adopt physical blowing technique preparation of the present invention
No. 32.5 cement are mixed according to foregoing ratio with water and auxiliary agent (latex powder, hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearate), once be stirred to evenly, then pulverize, proportionally add blending in of fibers in crushed material, carry out secondary stirring to even.Then inject mould after the concrete foaming machine foaming, make finished product, can obtain a result after four hours.
Do not subside after four hours through the warming plate that above method is made, grout merges evenly with bubble, initial set.After the second day demoulding, product solidifies well with hand up by intensity is arranged, and product can erect.
| Density | 160～250kg/m 3 |
| Ultimate compression strength | 0.3～0.5MPa |
| Water-absorbent | 10％～20％ |
| Thermal conductivity | 0.05～0.062W/m.K |
Comparative Examples 1: adopt chemical foaming technology to prepare warming plate
First water is heated to the 50-60 degree, then add warm water stirrer to stir, then add cement, flyash (1: 0.7～0.8) stirrer to stir 0.5-1 minute, then add again other raw materials according to weight of cement per-cent, (calcium stearate 0.8～2%, anti-crack fiber 0.2%, hydrogen peroxide 27%, polymer emulsion 2～4%, SILICA FUME 3～6%, latex powder are appropriate, high efficiency water reducing agent 1%, water-resisting agent 5%) stirred 0.5-1 minute, at last whipping agent was added stirrer to stir and emitted after 0.5-1 minute.
Easy to crack through the warming plate internal stress that above method is made, ultimate compression strength is low, and to the temperature requirement of water is higher must be between the 50-60 degree.All requirements of process manual operations in process of production, product do not reach require and efficient also low.
The result that the product test of being done by above method goes out:
| Density | 250～600kg/m 3 |
| Ultimate compression strength | 0.2～0.4MPa |
| Water-absorbent | 15％～25％ |
| Thermal conductivity | 0.05～0.10W/m.K |
Comparative Examples 2: adopt the preparation of conventional physical foam process
First water is joined agitation vat, then cement (No. 32.5 cement) is added agitation vat, add 3% rubber powder, 0.5% fiber stirs, and injects mould after the concrete foaming machine foaming, makes finished product.Can obtain a result after four hours.The warming plate of making through above method has two kinds of phenomenons; 1. the current in mould lose, and grout subsides at least to 1/2 of mould, the experimental result failure.2. the grout initial set in mould after four hours, the second day demoulding is through in a few days natural curing, and after cutting, warming plate does not obviously have intensity surface one deck powder.
The product test result of being made by above method:
| Density | 350～600kg/m 3 |
| Ultimate compression strength | 0.8～1.2MPa |
| Water-absorbent | 30％～50％ |
| Thermal conductivity | 0.07～0.10W/m.K |
In above-described embodiment and Comparative Examples, cement adopts No. 32.5, and testing method is the mensuration heat flowmeter method of GB/T10295-2008 Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics.
But the invention is not restricted to this, such as using 42.5,62.5 etc.In addition, the latex powder of using in embodiment is produced as Shanxi three Weihe River Group Plcs, and model is: SWF-05; Water-resisting agent is that Cape of Good Hope, Taiyuan building materials company limited produces, and model is YF; Hardening accelerator is that Shanghai Feibu Building Materials Co., Ltd. produces, and model is FB-2; Calcium formiate is that Wujiang south wind Fine Chemical Co., Ltd produces, and model is 98%; Calcium stearate is that the far-reaching additive of Xiaogan company limited generates, and model specification is the 25kg/ bucket; Water reducer is that Nanchang Hao Ge Science and Technology Ltd. generates, and model is F10; Fiber is that Shenzhen perseverance reaches building materials and sells company limited and sell, and model is K1W-001.
In addition, consider the combination of production cost and result of use, the preferred 180～230kg/m of the density of warming plate of the present invention
3Experimental results show that by above warming plate of the present invention has that unit weight is low, uniform in foaming, the characteristics of thermal conductivity little (being high insulating effect), warming plate preparation technology of the present invention compares with traditional chemical foaming, physical blowing technique, and yield rate is high, and production efficiency also significantly improves.
The above person of thought; be only specific embodiments of the invention, when not limiting scope of the invention process with this, therefore the displacement of its equivalent assemblies; or according to equivalent variations and modification that scope of patent protection of the present invention is done, all should still belong to the category that claims of the present invention are contained.
Claims (5)
1. inorganic foaming concrete heat-insulating board, it contains concrete, and the density that it is characterized in that described warming plate is 160～250kg/m
3, ultimate compression strength is 0.3～0.5MPa, thermal conductivity is 0.05～0.062W/m.K.
2. inorganic foaming concrete heat-insulating board according to claim 1, it is characterized in that: the density of described warming plate is 180～230kg/m
3
3. the preparation method of a kind of inorganic foaming concrete heat-insulating board according to claim 1, is characterized in that described method comprises the steps:
A: once be stirred to evenly after cement, water and auxiliary agent are mixed, obtain once stirring thing, described auxiliary agent comprises toughener, hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearate, the weight ratio of described cement and water is: 1: 0.6～0.7, described toughener is 0.1～0.5: 1 with the weight of cement ratio, and described hardening accelerator, calcium formiate, water reducer, water-resisting agent and calcium stearate are with the weight of cement ratio: 0.2%～0.5%: 1;
B: the above-mentioned thing that once stirs is pulverized, obtained crushed material;
C: add fiber and carry out secondary stirring to evenly in above-mentioned crushed material, obtain the secondary stirring thing, described fiber with the weight of cement ratio is: 0.1%～0.3%: 1;
D: above-mentioned secondary stirring thing is poured into a mould after by physical blowing, obtained goods.
4. the preparation method of a kind of inorganic foaming concrete heat-insulating board according to claim 3, it is characterized in that: described toughener is latex powder or industrial emulsion.
5. the preparation method of a kind of inorganic foaming concrete heat-insulating board according to claim 3, it is characterized in that: the length of described fiber is 4～7mm.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304260A (en) * | 2013-06-18 | 2013-09-18 | 上海宝冶工程技术有限公司 | Foamed concrete heat preservation plate and preparation method thereof |
| CN104446633A (en) * | 2014-12-23 | 2015-03-25 | 苏州万盛混凝土有限公司 | Preparation method of foamed concrete |
| CN105217991A (en) * | 2015-11-05 | 2016-01-06 | 青岛环秀涂料有限公司 | A kind of cement foaming insulation board steady bubble sizing toughener and using method thereof |
| CN109734406A (en) * | 2019-03-27 | 2019-05-10 | 山东淄建集团有限公司 | Ceramic tile polishing mud and the heat insulating porous material of diatom soil matrix and preparation method thereof |
| CN110968126A (en) * | 2018-09-30 | 2020-04-07 | 北新集团建材股份有限公司 | Gypsum board raw material constant temperature control system and control method |
| CN114988808A (en) * | 2022-06-16 | 2022-09-02 | 深圳市明远建筑科技有限公司 | Foam concrete slab capable of replacing traditional brick moulding bed and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913900A (en) * | 2010-08-26 | 2010-12-15 | 成都西亚科技发展有限公司 | Foam concrete and preparation method |
-
2011
- 2011-11-02 CN CN201110341905.1A patent/CN103086734B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913900A (en) * | 2010-08-26 | 2010-12-15 | 成都西亚科技发展有限公司 | Foam concrete and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 《科技信息》 20110615 范丽 "泡沫混凝土的搅拌与混泡工艺浅析" 第342页4.1-4.5，3.1 1-5 , 第17期 * |
| 范丽: ""泡沫混凝土的搅拌与混泡工艺浅析"", 《科技信息》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304260A (en) * | 2013-06-18 | 2013-09-18 | 上海宝冶工程技术有限公司 | Foamed concrete heat preservation plate and preparation method thereof |
| CN103304260B (en) * | 2013-06-18 | 2016-01-20 | 上海宝冶工程技术有限公司 | A kind of foamed concrete warming plate and preparation method thereof |
| CN104446633A (en) * | 2014-12-23 | 2015-03-25 | 苏州万盛混凝土有限公司 | Preparation method of foamed concrete |
| CN105217991A (en) * | 2015-11-05 | 2016-01-06 | 青岛环秀涂料有限公司 | A kind of cement foaming insulation board steady bubble sizing toughener and using method thereof |
| CN105217991B (en) * | 2015-11-05 | 2017-09-29 | 青岛环秀涂料有限公司 | A kind of cement foaming insulation board foam stabilizing sizing reinforcing agent and its application method |
| CN110968126A (en) * | 2018-09-30 | 2020-04-07 | 北新集团建材股份有限公司 | Gypsum board raw material constant temperature control system and control method |
| CN109734406A (en) * | 2019-03-27 | 2019-05-10 | 山东淄建集团有限公司 | Ceramic tile polishing mud and the heat insulating porous material of diatom soil matrix and preparation method thereof |
| CN114988808A (en) * | 2022-06-16 | 2022-09-02 | 深圳市明远建筑科技有限公司 | Foam concrete slab capable of replacing traditional brick moulding bed and preparation method and application thereof |
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