CN1490272A - Cast-in-situs polystyrene cement composite foaming material and constructing method thereof - Google Patents

Cast-in-situs polystyrene cement composite foaming material and constructing method thereof Download PDF

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Publication number
CN1490272A
CN1490272A CNA031341543A CN03134154A CN1490272A CN 1490272 A CN1490272 A CN 1490272A CN A031341543 A CNA031341543 A CN A031341543A CN 03134154 A CN03134154 A CN 03134154A CN 1490272 A CN1490272 A CN 1490272A
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cement
foamed
polystyrene
grain
site casting
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CN1253398C (en
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星 陈
陈星�
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Shenyang Jinkai Construction Science & Technology Co ltd
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    • 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

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  • Compositions Of Macromolecular Compounds (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A composite foaming material is prepared from foamed polystyrene particles, silicate cement, powdered coal ash, affinity agent and foaming agent through proportional mixing. Its in-situ application method includes such steps as foaming the polystyrene particles by portable electrothermal steam foaming machine, stirring cement mortar by stirrer, sequentially mixing with others, stirring, and in-situ pouring.

Description

On-site casting polyphenyl ethene cement composite foamed material and constructional method
Technical field
The present invention relates to a kind of material of construction, particularly relate to the composite foamed lagging material of a kind of polystyrene and silicate cement and reach the method for building moulding construction site production.
Background technology
At present, light with frothing percentage height, unit weight on the one hand, the good heat insulating of polystyrol foam material (be called for short benzene plate), hydrophobic is water-fast and by body of wall that is applied in large quantities build and roof heat insulation engineering; On the other hand also because intensity is low, cracky, fire line is poor, with self-defect such as inorganic materials affinity difference, brings many bad consequences for the building heat preservation engineering.In the engineering commonly used inorganic heat insulation material as: the strengths of materials such as cement perlite, gas concrete, haydite concrete, light magnesium cement are better; but heat insulation every cool effect and organic foam material (benzene plate) than be several times lower than~tens times; and the water-intake rate height, poor water resistance.As seen, (heat-insulating property is good more, and intensity is poor more to show as inverse relation between the heat-insulating property of the lagging material of above-mentioned two kinds of different performances and the intensity; Otherwise intensity is good more, and heat-insulating property is poor more).How to solve this contradiction preferably, countries in the world many material of construction experts all constantly exploring for this reason and studying.
The patent that the applicant has applied in China, the patent No. is 02133070.0, denomination of invention is in " on-site casting polyphenyl-magnesia cement composite foamed material and constructional method ", disclosed be exactly with heat-insulating property preferably polystyrene be raw material, by the operation of foaming of portable electric-heating steam polyphenyl foaming machine, form organic foam polystyrene bubble grain, again by " the cement foamed machine of portable magnesium " with intensive properties magnesium cement preferably, flyash, water-proofing agent, whipping agent, affinity agent feeds intake by the proportioning order, make magnesium cement inorganic foamed body, then organic foam and inorganic foamed body are mixed, discharging, the cast in situs moulding.This invention organically combines organic insulation material and inorganic heat insulation material advantage separately, forms a kind of novel heat-insulating construction material.But magnesium cement (magnesia unslacked and magnesium chloride) raw material resources is limited, makes the practicality of this technology be subjected to the provincialism restriction.
Summary of the invention
The objective of the invention is for the district that overcomes above-mentioned magnesium cement resource sex-limited, develop a kind of novel on-site casting polyphenyl ethene cement composite foamed material and constructional method thereof, reach the two foaies of a kind of organic and inorganic composite materials of characteristics such as can utilizing organic foamed polystyrene high insulating effect, frothing percentage height, can utilize that silicate cement affinity (with building structure) is good, intensity is high again, fire-resistant fire prevention, resource are extensive.And adopt cast-in-place mode by production and construction integration apparatus or site operation equipment, high-level efficiency, finish the roof of buildings heat preservation construction cheaply.
Polystyrene cement composite foamed material of the present invention is by foamed polystyrene grain and cement, flyash, and affinity agent, whipping agent mixes, and its main points are that to have selected silicate cement for use be the inorganic foamed body raw material, and prescription (is pressed 1m 3Building body and function material is a benchmark) be: foamed polystyrene grain heap volume 0.8~1.1m 3, be 4~16kg by frothing percentage conversion weight, cement 60~250kg, flyash 50~300kg, water 30~160kg, whipping agent 5~15kg, affinity agent 8~25kg.
The raw material polystyrene particle diameter Φ≤1mm of above-mentioned foamed polystyrene grain, the foaming particle diameter is Φ 2~6mm; Cement is silicate cement, is a kind of widely used material of construction; Flyash (market sale); The whipping agent available types is a lot, generally can be divided into two kinds of technologies, and first high-speed stirring whipping agent (wiring solution-forming) makes the fine and closely woven foams of certain bubble support earlier, mixes stirring with the grout that configures then; It two is that whipping agent is disposed with cement, makes cement foamed by the low speed mix.Two kinds of foam process of the present invention all can adopt, and whipping agent can be selected the positive lactic acid (salt) and the aluminium powder of hydrogen peroxide, rosin fat liquid, sodium laurylsulfonate glue, vinylformic acid, hexahydrobenzoic acid, magnesium metal for use; Affinity agent is a kind of tensio-active agent, in order to improve the gripping force of cement to the benzene grain.The benzene grain is an organic materials, and cement is inorganic materials, and the affinity of these two kinds of materials is relatively poor.Promptly has hydrophilic hydroxyl groups simultaneously (OH) and oleophilic group (surfactant materials R) so the invention provides a kind of affinity agent, hydrophilic group combines with inorganic materials, make cement surface produce the oleophylic effect, the organic benzene grain of holding has then so improved the complex function of material greatly.Affinity agent can be selected for use: methyl silicon emulsion, styrene-butadiene emulsion, water soluble acrylic resin, polyvinyl alcohol and benzene emulsion.
The constructional method that realizes the cast-in-place vinylbenzene cement composite foamed material of the present invention is: the foamed polystyrene grain is produced, raw material choice, mechanical mixture and cast in situs processing step.
1. at the construction field (site) by 100 ℃ of " portable electric-heating steam foamed polystyrene machine " control blowing temperatures, with polystyrene raw material (Φ≤1mm) foam, the particle diameter Φ 2~6mm after the foaming.
2. fill a prescription by its above-mentioned polystyrene cement composite foamed material by " cement sand pulp grinder " again, with the foamed polystyrene grain, cement, flyash, water, whipping agent, affinity agent mixes, and duration of mixing is more than 2 minutes, and requiring wet unit weight is 350~450kg/m 3Thermal conductivity λ≤0.1W/mK; Intensity 〉=0.7Mpa; Slump 40~60mm.
3. after reaching duration of mixing, promptly build moulding, the steps include: with in-situ horizontal and vertical transport equipment
1. before the cast in situs, roofing should be cleaned out, cooperate civil engineering,, set in advance insulation layer thickness and gradient markings, guarantee that the construction of the insulation layer thickness and the gradient meets design requirement according to the heat preservation construction requirement at each position, house.
2. when roofing list length of grade to or short when surpassing 6 meters, the lattice seam should adopt compressibility benzene plate, thickness is not less than 20mm.Purchase strike-off stick, material can be used plastic plate, thickness 5~8mm.And having rib of slab, length is that length is in 0.7~1.1mm scope greater than building width.
3. build width 0.6~1.0mm at every turn, build width one side, the width plate is set.Its effect is the slope of roof of building the baffle plate of thing and reaching by design requirements, and with building with mobile strike-off stick, strike-off stick moves on gradient plate.
4. can carry out the next procedure operation in 72 hours after the cast in situs.
5. when this material used as thermal insulation layer, substrate need not made screed-coat.And upper surface need not made screed-coat yet, and cast-in-place thing is wipeed the basic unit that promptly can be used as waterproof layer off.
The most significant advantage of the present invention and effect are:
The first,, when obtaining extraordinary heat-insulating property, also obtained to meet the intensity of engine request, the comparatively ideal heat-insulating property of building thermal insulation material and the contradiction between the intensity of having solved by organic composite foamed with inorganic materials.
The second, the cast-in-place moulding in working-yard, both solved damaging problem in lagging material transportation, the handling process, solve a series of long-standing problems such as integrity, density, diversity, affinity of construction operation face (thermal insulation layer) again, improved construction quality, reduced engineering cost.
Three, can adjust the frothing percentage and the intensity of matrix material flexibly, make it to satisfy all kinds of architectural design requirements from different places, reach the economic and technical norms optimization, obtain the good ratio of performance to price.The adjustment means can be finished by one of polyphenyl frothing percentage, cement foamed rate, these three kinds of approach of compound proportioning.
Four, the present invention's water ratio problem of solving roofing by selecting for use of starting material (polystyrene), and solve the injection water retaining in reservoir problem of roofing by the construction technology of integral cast-in-situ.So this material can make roofing steam spread unchecked, can not cause composite heat-insulating layer to wreck because of the expansion and the frost heave in winter in summer, thereby make that also waterproof layer remains intact, thoroughly solved the roof leakage problem that perplexs people in decades, bring great convenience to building maintenance.
Five, energy-conservation joint soil, environmental protection and waste utilization.By organic-inorganic wastes such as a large amount of use flyash, benzene plate packing materials, turn waste into wealth, meet the building material standard that country advocates.
Embodiment
Embodiment 1:
(Φ=1mm) adopt the steam foaming makes the benzene bubble grain (reaching 90 times) of median size 4.5mm with Expandable Polystyrene (EPS).
Prescription: 1. polyphenyl foaming grain: 2.3g; 2. water: 35g; 3. cement: 60g;
4. polyvinyl alcohol: 5g; 5. flyash: 50g; 6. rosin fat liquid: 2g.
By feeding intake successively in the container of number order under whipped state, after the end that feeds intake, continue to stir 2 minutes, pour into a mould the mould molding of 7cm * 7cm * 7cm then, molding gets (volume 7 * 7 * 7=343cm after 24 hours 3Wet unit weight=450g/cm 3Unit dry weight=396g/cm 3) No. 1 square test block.
Embodiment 2:
With Expandable Polystyrene (EPS) (Φ=0.8mm) adopt the steam foaming to make the polyphenyl foaming grain (107 times of foam volumes) of median size Φ 3.8mm.
Prescription: 1. polyphenyl foaming grain: 6.8g; 2. water: 75g; 3. cement: 130g;
4. benzene emulsion: 9g; 5. flyash: 100g; 6. hydrogen peroxide: 12g.
By feeding intake successively in the container of number order under whipped state, after the end that feeds intake, continue to stir 2 minutes, pour into a mould diameter of phi 200mm then, the round mould molding of high h=30mm.The demoulding gets (V=942cm after 24 hours 3Wet unit weight=346g/cm 3Unit dry weight=307g/cm 3) No. two round test blocks.
Parameter detecting (28 days):
Parameter Example 1 Example 2
Unit weight (g/cm 3) ????396 ????307
Ultimate compression strength (Mpa) ????1.5 ????0.9
Thermal conductivity (W/mK) ????0.095 ????0.072
Drying shrinkage value (mm/m) ????≤0.5 ????≤0.7
Water-intake rate (weight ratio) ????9.4% ????8.3%
Freeze thawing (15 times) weight loss ????<3.2% ????<3.8%
Freeze thawing (15 times) loss of strength ????<3.6% ????<3.6%
Void content ????82% ????86%
Set fire Do not fire Do not fire

Claims (7)

1. on-site casting polyphenyl ethene cement composite foamed material, by foamed polystyrene grain and cement, flyash, whipping agent, affinity agent mixes, and it is characterized in that having selected for use silicate cement is the inorganic foamed body raw material, and prescription (is pressed 1m 3Building body and function material is a benchmark) be:
Foamed polystyrene grain: heap volume 0.8~1.1m 3,
By frothing percentage conversion weight is 4~16kg,
Cement: 60~250kg,
Flyash: 50~300kg,
Water: 30~160kg,
Whipping agent: 5~15kg,
Affinity agent: 8~25kg.
2. according to the described a kind of on-site casting polyphenyl ethene cement composite foamed material of claim 1, it is characterized in that whipping agent can select for use: the emulsion (salt) or the aluminium powder of hydrogen peroxide, rosin fat liquid, Sodium dodecylbenzene sulfonate glue, vinylformic acid, hexahydrobenzoic acid, magnesium metal.
3. according to the described a kind of on-site casting polyphenyl ethene cement composite foamed material of claim 1, it is characterized in that affinity agent can select for use: methyl silicon emulsion, styrene-butadiene emulsion, the aqueous solution third sacrificial acid resin, polyvinyl alcohol or benzene emulsion.
4. according to the described a kind of on-site casting polyphenyl ethene cement composite foamed material of claim 1, it is characterized in that the polystyrene raw material particle diameter selects Φ≤1mm for use, a foaming grain particle diameter is Φ 2~6mm.
5. the constructional method of an on-site casting polyphenyl ethene composite foam material, at first by portable electric-heating steam polyphenyl foaming machine, under 100 ℃ of blowing temperatures, polystyrene raw material foamed form the foaming grain, again by cement plaster blender with the foamed polystyrene grain, cement, flyash, water, affinity agent, whipping agent feeds intake by the proportioning order, stirs mix more than 2 minutes, makes polystyrene cementitious composite foam, discharging then, carry out the cast in situs moulding, it is characterized in that having selected for use silicate cement is the inorganic foamed body raw material, and prescription (is pressed 1m 3Building body and function material is a benchmark) be:
Foamed polystyrene grain: heap volume 0.8~1.1m 3,
By frothing percentage conversion weight is 4~16kg,
Cement: 60~250kg,
Flyash: 50~300kg,
Water: 30~160kg,
Whipping agent: 5~15kg,
Affinity agent: 8~25kg.
6. according to the constructional method of the described a kind of on-site casting polyphenyl ethene composite foam material of claim 5, it is characterized in that stirring and require the polystyrene cementitious composite foam that obtains behind the mix, wet unit weight is 350~450kg/m 3Thermal conductivity λ≤0.1W/mK; Intensity 〉=0.7Mpa; Slump 40~60mm.
7. according to the constructional method of the described a kind of on-site casting polyphenyl ethene composite foam material of claim 5, it is characterized in that after the cast in situs can carrying out the next procedure operation in 72 hours.
CNB031341543A 2003-08-25 2003-08-25 Cast-in-situs polystyrene cement composite foaming material and constructing method thereof Expired - Fee Related CN1253398C (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101806102A (en) * 2010-04-06 2010-08-18 山东申原新材料有限公司 Compound insulation board
CN102080422A (en) * 2010-12-02 2011-06-01 付振顶 Heat preservation and fire prevention integrated template and preparation and installation method thereof
CN101748852B (en) * 2009-11-23 2011-11-16 赵顺年 Exterior wall heat insulation board and preparation method thereof
CN102557721A (en) * 2012-02-22 2012-07-11 武汉理工大学 Non-combustible energy-saving heat-preserving board and preparation method thereof
CN102659384A (en) * 2012-04-26 2012-09-12 沈阳金铠建筑科技股份有限公司 Double-foam pumping heat-preservation slurry and manufacturing method thereof
CN102731043A (en) * 2012-06-29 2012-10-17 葫芦岛天煦新型节能墙材有限公司 Composite foamed slurry heat-insulation material
CN105036795A (en) * 2015-07-23 2015-11-11 梅蒎 Silicon powder polymer thermal insulation material and production process thereof
CN108529954A (en) * 2018-05-11 2018-09-14 辽宁金圣建筑科技有限公司 A kind of hydrophobic type foamed polystyrene concrete and preparation method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101748852B (en) * 2009-11-23 2011-11-16 赵顺年 Exterior wall heat insulation board and preparation method thereof
CN101806102A (en) * 2010-04-06 2010-08-18 山东申原新材料有限公司 Compound insulation board
CN101806102B (en) * 2010-04-06 2012-05-02 山东申原新材料有限公司 Compound insulation board
CN102080422A (en) * 2010-12-02 2011-06-01 付振顶 Heat preservation and fire prevention integrated template and preparation and installation method thereof
CN102557721A (en) * 2012-02-22 2012-07-11 武汉理工大学 Non-combustible energy-saving heat-preserving board and preparation method thereof
CN102557721B (en) * 2012-02-22 2014-12-03 武汉理工大学 Non-combustible energy-saving heat-preserving board and preparation method thereof
CN102659384A (en) * 2012-04-26 2012-09-12 沈阳金铠建筑科技股份有限公司 Double-foam pumping heat-preservation slurry and manufacturing method thereof
CN102659384B (en) * 2012-04-26 2014-03-12 沈阳金铠建筑科技股份有限公司 Double-foam pumping heat-preservation slurry and manufacturing method thereof
CN102731043A (en) * 2012-06-29 2012-10-17 葫芦岛天煦新型节能墙材有限公司 Composite foamed slurry heat-insulation material
CN105036795A (en) * 2015-07-23 2015-11-11 梅蒎 Silicon powder polymer thermal insulation material and production process thereof
CN108529954A (en) * 2018-05-11 2018-09-14 辽宁金圣建筑科技有限公司 A kind of hydrophobic type foamed polystyrene concrete and preparation method thereof

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Owner name: SHENYANG JINKAI THERMAL INSULATION ENGINEERING CO.

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Patentee before: Chen Xing

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Address after: 110143, Shenyang economic and Technological Development Zone, Tai Pan Town, four table Village

Patentee after: Shenyang Jinkai Construction Science & Technology Co.,Ltd.

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Patentee before: Shenyang Jin Kai Insulation Engineering Co. Ltd.

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