CN103058617A - Coal ash compound insulation plate - Google Patents
Coal ash compound insulation plate Download PDFInfo
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- CN103058617A CN103058617A CN2013100515677A CN201310051567A CN103058617A CN 103058617 A CN103058617 A CN 103058617A CN 2013100515677 A CN2013100515677 A CN 2013100515677A CN 201310051567 A CN201310051567 A CN 201310051567A CN 103058617 A CN103058617 A CN 103058617A
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Abstract
The invention discloses a coal ash compound insulation plate, which comprises an inner surface layer, an outer surface layer and an insulation layer, wherein the inner surface layer and the outer surface layer are formed in a way that slurry is poured and solidified in a mould; and the raw materials of the slurry comprise coal ash, sulfoaluminate cement, ordinary portland cement, a glass bead, expanded perlite, a glass fiber, an early strength agent, a water reducing agent, an expanding agent, a VAE (Vinyl Acetate Ethylene) emulsion and tap water. According to the coal ash compound insulation plate, the raw materials are reasonably selected and used, on one hand, the insulation plate is higher in compressive strength and insulation performance, and on the other hand, the cost is also reduced and the anti-permeability and anti-freezing performance of the insulation plate is improved.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of flyash composite insulating board.
Background technology
The tradition heat preservation plate material is take cement as main gelling material, and its intensity is lower, and heat insulation effect is relatively poor.Flyash is the large industrial residue of China, and annual quantity discharged is more than 100,000,000 tons.For many years, the recycling of flyash is by numerous scholars and engineering technical personnel are paid close attention to.Main bonding component in take flyash as heat preservation plate material is equipped with suitable whipping agent and other component, can make the intensity of heat preservation plate material and heat-insulating property obtain larger raising.China is existing patent (such as patent 200710304328.2,200810114031.4,200820108406.1 etc.) for fly ash heat preservation plate material at present.
Fly ash heat preservation plate is aspect material structure, the foaming of employing science, surely steep technology, make inorganic materials need not steam-curedly can form even blind hole bubble, frivolous, the high-strength and sealing of hole wall makes the insulation of lagging material and the contradiction of intensity obtain unification, and has avoided the infiltration of moisture.Aspect constructing structure, the globality of cast-in-site and the environmental compatibility of sheet material assembly unit are organically combined, really accomplish " flawless ".This product has the physical property of organic insulation material and inorganic heat insulation material concurrently, it is the desirable roofing heat insulating material that has comprehensive advantage, not only can do insulation and roof heat insulation in the external wall, also can do the indoor non-bearing partition wall, sound-proofing properties is good, excellent in cushion effect, freeze proof, cracking resistance, lightweight, heat insulation, fire-resistant, aging, easy construction, plasticity-are good, can saw, can follow closely, can dig arbitrarily hole buries various pipelines underground, but fully dried operation is whitewashed in wall decoration flexibly wallpaper, tiling, coating.Thereby reduced building cost, shortened the construction period.
Although fly ash heat preservation plate material has above-mentioned advantage, still there is obvious deficiency in existing fly ash heat preservation plate material: the cost of light calcined magnesia, magnesium chloride, magnesia oxychloride cement or other magnesium gelatinous material that (1) is used is higher; (2) the concrete cold-resistant frost resistance of porous magnesia oxychloride cement is not good, easily seeps water, and has affected the use properties of product, causes building life to shorten.For overcoming above-mentioned deficiency, be necessary to provide a kind of manufacture method of new fly ash heat preservation plate material.
Summary of the invention
The object of the invention is to provide a kind of novel flyash composite insulating board, and this sheet material has higher ultimate compression strength, is beneficial to the increasing foam volume, and panel density is low, good heat insulating.
For achieving the above object, the present invention adopts following technical scheme:
A kind of flyash composite insulating board comprises interior outer coversheet and thermal insulation layer, and interior outer coversheet is solidified in mould after by slip casting and formed; The slip raw material mainly comprises flyash, aluminosulfate cement, ordinary Portland cement, glass bead, pearlstone, glass fibre, hardening accelerator, water reducer, swelling agent, VAE emulsion and tap water.
Hardening accelerator can be concrete early strength agent, cement early strength agent, or mortar hardening accelerator, mainly in order to improve early strength.
Concrete; the slip raw material weight proportioning of interior outer coversheet is: flyash 100-200 part, aluminosulfate cement 30-80 part, ordinary Portland cement 0-50 part; glass bead 30-80 part; pearlstone 0-50 part, glass fibre 5-15 part, hardening accelerator 0-5 part; water reducer 0-10 part; swelling agent 0-30 part, VAE emulsion 0-30 part, the add-on of water is the 30-50% of flyash, cement, glass bead, pearlstone and glass fibre gross weight.
Described flyash generally selects the I level to hang down calcium fly ash, and its particle diameter is not more than 200 μ m, to guarantee that enough specific surface areas are with active.
Described thermal insulation layer is comprised of flame-retardant polystyrene cystose and/or foamed concrete.
The main raw material weight proportion of foamed concrete is: cement 150-200 part, flyash 0-50 part, water reducer 0-2 part and hardening accelerator 0-2 part.
Foamed concrete adopts cement, flyash to be main raw material and to add water reducer, hardening accelerator etc. and make concrete slurry, make the foam slurry with whipping agent by foaming machine, with being cast in the mould after concrete slurry and the mixing of foam slurry, after solidifying, natural curing forms foamed concrete.Described cement can be aluminosulfate cement, ferro-aluminate cement or ordinary Portland cement.Described flyash generally selects the I level to hang down calcium fly ash, and its particle diameter is not more than 200 μ m, to guarantee that enough specific surface areas are with active.The multiple water reducers such as described water reducer can be for naphthalene, polycarboxylic acid series.Described hardening accelerator is specifically as follows vitriolate of tartar, calcium chloride, calcium formiate or Quilonum Retard etc.Described whipping agent can be rosin based whipping agent, animal proteinum type whipping agent or compound foaming agent, preferred animal proteinum type whipping agent.
The present invention utilizes flyash, early strengthening and high strengthening cement, light-weight high-strength material to prepare the interior outer coversheet of fly ash heat preservation plate, middle filling high density degree fire protection flame retarding type polystyrene foam plate (being called for short " styrofoam ") or foamed concrete are as thermal insulation layer, add galvanized wire mesh as thermal-insulation connecting piece, finally obtain the flyash composite insulating board.Galvanized wire mesh can be buied from market.
Because raw material of the present invention adopts early strengthening and high strengthening cement to substitute magnesium gelatinous material, this has reduced cost on the one hand, also can significantly improve on the other hand the impervious and anti-freezing property of fly ash heat preservation plate material.Owing to adopted the flyash with certain activity and the glass fibre that is conducive to improve whole cohesive strength, improved the ultimate compression strength of sheet material, be conducive to strengthen foam volume, reduce panel density, improve heat-insulating property.This flyash composite insulating board not only can be applicable to building exterior wall heat preserving and roof heat insulation, also can do the indoor non-bearing partition wall.
Description of drawings
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
The present invention is further illustrated by the following examples, but protection scope of the present invention is not limited to this.
Referring to Fig. 1, the invention provides a kind of flyash composite insulating board, it is comprised of interior outer coversheet and thermal insulation layer.
Interior outer coversheet is solidified in mould after by slip casting and is formed.The main raw material of slip comprises flyash; aluminosulfate cement; ordinary Portland cement; glass bead; pearlstone; glass fibre; hardening accelerator; water reducer; swelling agent; the VAE emulsion; tap water etc.; its weight proportion is: flyash 100-200 part; aluminosulfate cement 30-80 part; ordinary Portland cement 0-50 part; glass bead 30-80 part; pearlstone 0-50 part; glass fibre 5-15 part; hardening accelerator 0-5 part; water reducer 0-10 part; swelling agent 0-30 part, VAE emulsion 0-30 part, the add-on of water is flyash; cement; glass bead; the 30-50% of pearlstone and glass fibre gross weight.Described flyash generally selects the I level to hang down calcium fly ash, and its particle diameter is not more than 200 μ m, to guarantee that enough specific surface areas are with active.The specific surface area of described aluminosulfate cement and ordinary Portland cement is at 350m
2/About kg.The preferred 2-5mm of the length of described glass fibre.Described hardening accelerator can be vitriolate of tartar, calcium chloride, calcium formiate or Quilonum Retard etc.Described water reducer can be naphthalene system or poly carboxylic acid series water reducer.
Thermal insulation layer is made of high-density fire-proof flame-retardant polystyrene cystose or foamed concrete.Foamed concrete adopts cement, flyash to be main raw material and to add water reducer, hardening accelerator etc. and make concrete slurry, make the foam slurry with whipping agent by foaming machine, with being cast in the mould after concrete slurry and the mixing of foam slurry, after solidifying, natural curing forms foamed concrete.Described cement can be aluminosulfate cement, ferro-aluminate cement or ordinary Portland cement.Described flyash generally selects the I level to hang down calcium fly ash, and its particle diameter is not more than 200 μ m, to guarantee that enough specific surface areas are with active.The multiple water reducers such as described water reducer can be for naphthalene, polycarboxylic acid series.Described whipping agent can be rosin based whipping agent, animal proteinum type whipping agent or compound foaming agent, preferred animal proteinum type whipping agent, and these whipping agents all can be buied in market.Selecting of described whipping agent and foaming machine should be considered froth stability, homogeneity and bleeding, and consider the gelling property of slip is had or not negative interaction, so that it is suitable to form bubble diameter, size evenly, foam stabilization, be difficult for vanishing or excessive deformation, and self-water-retentivity should be arranged, in order to keep for a long time thickness and the integrity of bubble film, with being difficult for breaking in the process of slip mixing or after mixing, be difficult for forming communicating aperture.Described suds-stabilizing agent can be Chinese honey locust powder, soluble oil, Oxidized paraffin wax etc.The size of bubble diameter should be controlled between the 0.1-1mm in the described foam slurry.The proportioning of foamed concrete concrete slurry main raw material is: cement 150-200 part, flyash 0-50 part, water reducer 0-2 part, hardening accelerator 0-2 part.Described water reducer can be naphthalene system or poly carboxylic acid series water reducer.Described hardening accelerator can be vitriolate of tartar, calcium chloride, calcium formiate or Quilonum Retard etc.
The concrete ratio of described inside and outside surface layer slip, thermal insulation layer slip and foam slurry should be determined according to the density requirements of the heat preservation plate material for preparing.
Below provide the batching embodiment of several slips:
Embodiment 1
A kind of flyash composite insulating board comprises interior outer coversheet and thermal insulation layer, and the slip raw material weight proportioning of interior outer coversheet is: 150 parts in flyash, 50 parts of aluminosulfate cements, 30 parts of ordinary Portland cements, 50 parts of glass beads, 30 parts of pearlstones, 10 parts in glass fibre, 3 parts in hardening accelerator calcium chloride, 5 parts of poly carboxylic acid series water reducers, 20 parts of swelling agents, 15 parts of VAE emulsions, 120 parts in water; Thermal insulation layer is comprised of the fire-retardant styrofoam of high-density fire-proof.
The dry density that records the flyash composite insulating board with reference to GB/T11969-2008 " steam-pressing aero-concrete method for testing performance " and GB/T10294-2008 " the mensuration protective heat plate method of Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics " is 632m
2/ kg, ultimate compression strength is 6.2MPa, and drying shrinkage value is 0.3mm/m, and the frost resistance mass loss is 1.2%, and thermal conductivity is 0.14W/ (mk).
Embodiment 2
A kind of flyash composite insulating board comprises interior outer coversheet and thermal insulation layer, and the slip raw material weight proportioning of interior outer coversheet is: 150 parts in flyash, 50 parts of aluminosulfate cements, 30 parts of ordinary Portland cements, 50 parts of glass beads, 30 parts of pearlstones, 10 parts in glass fibre, 3 parts in hardening accelerator calcium chloride, 5 parts of poly carboxylic acid series water reducers, 20 parts of swelling agents, 15 parts of VAE emulsions, 120 parts in water; Thermal insulation layer is comprised of high-density fire-proof fire-retardant styrofoam and foamed concrete.The raw material weight proportioning of described foamed concrete slip is: 150 parts of ordinary Portland cements, 50 parts in flyash, 2 parts of naphthalene water reducers, 2 parts in hardening accelerator calcium chloride.
The dry density that records the flyash composite insulating board with reference to GB/T11969-2008 " steam-pressing aero-concrete method for testing performance " and GB/T10294-2008 " the mensuration protective heat plate method of Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics " is 782m
2/ kg, ultimate compression strength is 9.5MPa, and drying shrinkage value is 0.3mm/m, and the frost resistance mass loss is 1.4%, and thermal conductivity is 0.18W/ (mk).
Embodiment 3
A kind of flyash composite insulating board, comprise interior outer coversheet and thermal insulation layer, the slip raw material weight proportioning of interior outer coversheet is: 150 parts in flyash, 80 parts of aluminosulfate cements, 80 parts of glass beads, 10 parts in glass fibre, 3 parts in hardening accelerator calcium chloride, 5 parts of poly carboxylic acid series water reducers, 20 parts of swelling agents, 15 parts of VAE emulsions, 120 parts in water; Thermal insulation layer is comprised of the fire-retardant styrofoam of high-density fire-proof.
The dry density that records the flyash composite insulating board with reference to GB/T11969-2008 " steam-pressing aero-concrete method for testing performance " and GB/T10294-2008 " the mensuration protective heat plate method of Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics " is 657m
2/ kg, ultimate compression strength is 7.6MPa, and drying shrinkage value is 0.4mm/m, and the frost resistance mass loss is 1.5%, and thermal conductivity is 0.15W/ (mk).
Embodiment 4
A kind of flyash composite insulating board, comprise interior outer coversheet and thermal insulation layer, the slip raw material weight proportioning of interior outer coversheet is: 200 parts in flyash, 50 parts of aluminosulfate cements, 30 parts of ordinary Portland cements, 80 parts of glass beads, 10 parts in glass fibre, 3 parts in hardening accelerator calcium chloride, 5 parts of poly carboxylic acid series water reducers, 10 parts of swelling agents, 20 parts of VAE emulsions, 120 parts in water; Thermal insulation layer is comprised of foamed concrete.The raw material weight proportioning of foamed concrete slip is: 150 parts of ordinary Portland cements, 50 parts in flyash, 2 parts of poly carboxylic acid series water reducers, 0.5 part of hardening accelerator Quilonum Retard.
The dry density that records the flyash composite insulating board with reference to GB/T11969-2008 " steam-pressing aero-concrete method for testing performance " and GB/T10294-2008 " the mensuration protective heat plate method of Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics " is 754m
2/ kg, ultimate compression strength is 9.2MPa, and drying shrinkage value is 0.3mm/m, and the frost resistance mass loss is 1.3%, and thermal conductivity is 0.17W/ (mk).
Claims (5)
1. a flyash composite insulating board is characterized in that, comprises interior outer coversheet and thermal insulation layer, and interior outer coversheet is solidified in mould after by slip casting and formed; The slip raw material mainly comprises flyash, aluminosulfate cement, ordinary Portland cement, glass bead, pearlstone, glass fibre, hardening accelerator, water reducer, swelling agent, VAE emulsion and tap water.
2. flyash composite insulating board as claimed in claim 1; it is characterized in that; the slip raw material weight proportioning of interior outer coversheet is: flyash 100-200 part; aluminosulfate cement 30-80 part; ordinary Portland cement 0-50 part; glass bead 30-80 part; pearlstone 0-50 part; glass fibre 5-15 part; hardening accelerator 0-5 part, water reducer 0-10 part, swelling agent 0-30 part; VAE emulsion 0-30 part, the add-on of water are the 30-50% of flyash, cement, glass bead, pearlstone and glass fibre gross weight.
3. flyash composite insulating board as claimed in claim 2 is characterized in that, described flyash selects the I level to hang down calcium fly ash, and its particle diameter is not more than 200 μ m.
4. flyash composite insulating board as claimed in claim 1 is characterized in that, thermal insulation layer is comprised of flame-retardant polystyrene cystose and/or foamed concrete.
5. flyash composite insulating board as claimed in claim 4 is characterized in that, the main raw material weight proportion of foamed concrete is: cement 150-200 part, flyash 0-50 part, water reducer 0-2 part and hardening accelerator 0-2 part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100515677A CN103058617A (en) | 2012-12-25 | 2013-02-17 | Coal ash compound insulation plate |
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| CN201210569455.6 | 2012-12-25 | ||
| CN201210569455 | 2012-12-25 | ||
| CN2013100515677A CN103058617A (en) | 2012-12-25 | 2013-02-17 | Coal ash compound insulation plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036686A (en) * | 2015-06-13 | 2015-11-11 | 刘政辰 | Microcrystalline modified thermal-insulation board and preparation method thereof |
| CN105482281A (en) * | 2015-12-15 | 2016-04-13 | 天津一橙泽恒环保科技发展有限公司 | Enhanced-efficiency flame-retardant insulation board |
| CN106007620A (en) * | 2016-05-23 | 2016-10-12 | 句容联众科技开发有限公司 | Heat-insulation and heat-preservation concrete |
| CN106193346A (en) * | 2016-07-08 | 2016-12-07 | 中国冶金矿业长春矿产资源开发有限公司 | Iron ore mine foam concrete composite insulation boards and manufacture method |
| CN106278354A (en) * | 2016-08-31 | 2017-01-04 | 张家口市凯博风房地产开发有限公司 | A kind of external-wall heat-insulation material and preparation method thereof |
| CN106746952A (en) * | 2016-11-25 | 2017-05-31 | 陈东兴 | A kind of lightweight resistance to compression slurry |
| CN112321234A (en) * | 2020-11-11 | 2021-02-05 | 南京工业大学 | Composite heat-preservation paving plate and preparation method thereof |
| CN113175107A (en) * | 2021-04-23 | 2021-07-27 | 广东新江永安建设工程有限公司 | Moistureproof wall and construction method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497532A (en) * | 2008-01-30 | 2009-08-05 | 武汉沃尔浦科技有限公司 | Foaming latex cement energy-saving material for self anti-crack building enclosure |
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2013
- 2013-02-17 CN CN2013100515677A patent/CN103058617A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497532A (en) * | 2008-01-30 | 2009-08-05 | 武汉沃尔浦科技有限公司 | Foaming latex cement energy-saving material for self anti-crack building enclosure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036686A (en) * | 2015-06-13 | 2015-11-11 | 刘政辰 | Microcrystalline modified thermal-insulation board and preparation method thereof |
| CN105482281A (en) * | 2015-12-15 | 2016-04-13 | 天津一橙泽恒环保科技发展有限公司 | Enhanced-efficiency flame-retardant insulation board |
| CN106007620A (en) * | 2016-05-23 | 2016-10-12 | 句容联众科技开发有限公司 | Heat-insulation and heat-preservation concrete |
| CN106193346A (en) * | 2016-07-08 | 2016-12-07 | 中国冶金矿业长春矿产资源开发有限公司 | Iron ore mine foam concrete composite insulation boards and manufacture method |
| CN106278354A (en) * | 2016-08-31 | 2017-01-04 | 张家口市凯博风房地产开发有限公司 | A kind of external-wall heat-insulation material and preparation method thereof |
| CN106278354B (en) * | 2016-08-31 | 2017-11-03 | 张家口市凯博风房地产开发有限公司 | A kind of external-wall heat-insulation material and preparation method thereof |
| CN106746952A (en) * | 2016-11-25 | 2017-05-31 | 陈东兴 | A kind of lightweight resistance to compression slurry |
| CN106746952B (en) * | 2016-11-25 | 2019-02-26 | 安徽东巨新型建材有限公司 | A kind of lightweight resistance to compression slurry |
| CN112321234A (en) * | 2020-11-11 | 2021-02-05 | 南京工业大学 | Composite heat-preservation paving plate and preparation method thereof |
| CN113175107A (en) * | 2021-04-23 | 2021-07-27 | 广东新江永安建设工程有限公司 | Moistureproof wall and construction method thereof |
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Application publication date: 20130424 |