CN101525226A - Insulating dry powder mortar - Google Patents

Insulating dry powder mortar Download PDF

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Publication number
CN101525226A
CN101525226A CN200910043100A CN200910043100A CN101525226A CN 101525226 A CN101525226 A CN 101525226A CN 200910043100 A CN200910043100 A CN 200910043100A CN 200910043100 A CN200910043100 A CN 200910043100A CN 101525226 A CN101525226 A CN 101525226A
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CN
China
Prior art keywords
dry powder
weight percent
insulating dry
powder mortar
mortar
Prior art date
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Pending
Application number
CN200910043100A
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Chinese (zh)
Inventor
吕运征
柳舒
吕运凤
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Changsha Yuanpeng Chemical Technology Co., Ltd.
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吕运征
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Publication date
Application filed by 吕运征 filed Critical 吕运征
Priority to CN200910043100A priority Critical patent/CN101525226A/en
Publication of CN101525226A publication Critical patent/CN101525226A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0048—Fibrous materials
    • C04B20/0068—Composite fibres, e.g. fibres with a core and sheath of different material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions 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 hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses insulating dry powder mortar which is made from portland cement, pulverized fuel ash and/or slag powder, organic polymer emulsion powder, flame-retardant polystyrene foam particles, thermal insulating aggregate, composite fiber, water resisting agent and admixture. The insulating dry powder mortar has the advantages of light volume weight, low thermal conductivity, comprehensive utilization of waste material, environmental protection, resource saving, cracking resistance, ageing resistance, strong cohesive force, favorable workability and construction performance, convenient use, waterproofness, permeation resistance, high compression strength, convenient storage and transportation, no environmental pollution, and the like and can be widely used for preserving heat in the internal wall and the external wall of a building and other special engineering.

Description

Insulating dry powder mortar
Technical field
The invention belongs to material of construction and technical field of chemistry, relate to a kind of construction work mortar, specifically be used for building inside and outside wall thermal insulation, especially relate to a kind of insulating dry powder mortar that fully utilizes waste, water proof anti-seepage, cracking resistance, environmental protection.
Background technology
Along with improving constantly that environment protection and save energy are required, country advocates environmental protection, energy-saving building structure energetically, and the thermal insulation technology of architectural exterior-protecting construction has been the most important approach of building energy conservation.Domestic outer wall heat preservation system mainly contains heat preservation plate material and thermal insulation mortar at present, because heat preservation plate material is difficult to that heat preservation energy-saving transformation, the difficulty of construction in old room is big, cost is high, it is unpractical will generally adopting the composite energy-saving wall heat preservation plate material in old room heat-insulated reducing energy consumption and new building in a short time.Traditional mortar and masonry are easy to generate cold (heat) bridge phenomenon because thermal conductivity differs bigger, and easy to crack, the moisture absorption etc. because the power loss that the crack causes reaches more than 20%, have very big defective to exterior-wall heat insulation.The slurry thermal insulation mortar can be divided into on-the-spot the stirring and two kinds in premix slurry, the on-the-spot convenient transportation that stirs, but, cause the quality instability of product owing to equipment and artificial odjective cause; Premix slurry products quality is better, can directly construct, but transportation bothers very much.
Through the prior art literature search is found, Granted publication number discloses a kind of " external insulating mortar and preparation method " for the patent of invention of CN 1139551C, its component is: cement, high polymer binder, polystyrene foam particles, fiber and water, result of study shows that heat insulation effect is better, its thermal conductivity is 0.103w/m.k, but the consumption of cement is big in this patent, the waste resource; The later strength of mortar is undesirable simultaneously; On-the-spot preparation performance difficulty, more single on function, can't satisfy modern architecture to the multi-functional requirement of thermal insulation mortar.
Summary of the invention
Technical problem to be solved by this invention provide a kind of fully utilize waste, energy-saving heat preserving, water proof anti-seepage, cracking resistance, ultimate compression strength height, cohesive force by force, easily construct, be convenient to the environmental protection insulating dry powder mortar storing and transport.
Solving the technical scheme that its technical problem adopts is:
A kind of insulating dry powder mortar comprises silicate cement, flyash and/or slag powders, the weight percent that it is characterized in that each component is: silicate cement 35-60%, flyash and/or slag powders 5-25%, organic polymer latex powder 1-15%, flame retardant polystyrene foam particle 0-5%, heat insulation aggregate 5-30%, conjugated fibre 0.01-0.65%, water-proofing agent 010%, admixture 0-2.5%; Described organic polymer latex powder is the copolymer of polyethylene vinyl acetate emulsion and ACRYLIC EMULSION or polyvinyl alcohol, or the terpolymer of polyethylene vinyl acetate emulsion and ACRYLIC EMULSION and polyvinyl alcohol; Described conjugated fibre contains the polypropylene fibre of 40-70% (weight percent) and the brucite fiber of 30-60% (weight percent), and the length of polypropylene fibre is 3-12mm.
Described flyash can mix with arbitrary proportion with slag powders, and flyash and/or slag powders particle diameter are 10-100um, and its carbon content weight percent is 0.5-1.5%.
Polyethylene vinyl acetate emulsion in the described organic polymer latex powder and ACRYLIC EMULSION and/or polyvinyl alcohol can form needed polymer glue powder with the arbitrary proportion polymerization.
Described flame retardant polystyrene foam grain diameter is 0.5-4.5mm, and particle diameter is that the ratio of 0.5-1.5mm and 1.5-2.5mm and 2.5-4.5mm weight percent is 1-3: 4-6: 2-4.
Described heat insulation aggregate contains pearlstone, sepiolite, vermiculite, haydite or the hollow glass micropearl of 20-60% (weight percent) and silicon calcium powder or the quartz sand of 40-80% (weight percent), and its particle diameter is the 10-600 order.
Described water-proofing agent is one or more the mixture in poly-ethyl hydroxyl silicone emulsion, aqueous silane, the titanic acid ester, the poly-ethyl hydroxyl silicone emulsion in the preferred version; The preferred trolamine titanic acid ester of titanic acid ester, alkanolamine titanic acid ester, sec.-propyl three isostearoyl base titanic acid ester.
Described admixture is one or both the mixture in poly carboxylic acid series water reducer, dodecane sulfonate, alkylbenzene sulfonate, sulfonated trimeric cyanamide, polyethylene glycol, trolamine, formate, the calcium increasing agent; Poly carboxylic acid series water reducer preferable methyl vinylformic acid/olefin(e) acid methyl terpolymer, propenyl ether multipolymer, acid amides/imide-type or polymeric amide-polyethylene glycol branched chain type, the SP series of 2000 and 3000 series of its preferred KAO. Corp. SA of product grade, the HP series of Zhu Ben's Oil Corporation, NMB company, 100pH series, Sika company 1100 and 1200 series of Grace company, the SF500 series of Nippon Paper Chemicals Co., Ltd. or the pheomixTOOFC of MBT company.
The present invention mixes packed forming by a certain percentage by silicate cement, flyash and/or slag powders, organic polymer latex powder, flame retardant polystyrene foam particle, heat insulation aggregate, conjugated fibre, water-proofing agent and admixture.The present invention adopts water-proofing agent that the flame retardant polystyrene foam particle is carried out surface modification, improves the cohesive strength at itself and cement slurry interface; Adopt the flyash and/or the slag powders of fine grinding not only to have the effect of filler effect and fine aggregate, and participated in the hydration reaction of cement, with Ca (OH) 2Reaction generates cement stone and water-fast silicoaluminates such as Calucium Silicate powder, calcium aluminate, effectively stopped up the capillary channel of mortar, increased the degree of compactness of mortar, the water resistance and the impermeability of mortar have been improved, improved the intensity of mortar, flyash and/or slag powders have replaced part cement simultaneously, have improved the flowability and the water-retentivity of mortar mix, and depleted flyash and/or slag powders have been played the good comprehensive utilization; In mortar, add conjugated fibre and form tridimensional network, improve thixotropy and sag resistance, strengthen anti-the contraction and anti-cracking performance, prolong the operating time; The organic polymer latex powder has good hydrophobic nature, can improve simultaneously the adhesive property and the force of cohesion of mortar, be lowered into the Young's modulus of molding sand slurry, strengthen the elasticity and the flexural strength of mortar, improve the shock-resistance and the weathering resistance of mortar, reduce the water-absorbent of mortar and improve the water-retentivity of use; The adding of flame retardant polystyrene foam particle and heat insulation aggregate can effectively reach insulation, sound insulation, heat insulation function; Effective adding of admixture can effectively improve the early strength and the segregation stability of mortar, increases cohesiveness and application property, and the thermal conductivity of mortar is reduced greatly.
Preparation method of the present invention is: take by weighing various starting material by formula rate, adopt an amount of water that water-proofing agent is diluted the back and add in flame retardant polystyrene foam particle or the heat insulation aggregate, pre-treatment is carried out on its surface, stir; Add conjugated fibre, silicate cement, flyash and/or slag powders, organic polymer latex powder and admixture then successively and stir this product of formation, pack; During use, mix and to construct as long as add an amount of water at the scene.
The invention has the beneficial effects as follows: the loose volume weight of insulating dry powder mortar is light, and thermal conductivity is low, has adopted more flyash and/or slag powders in the starting material, has made full use of waste, and the protection environment has been saved resource; Stable physical property does not ftracture, cohesive strength height, anti-aging; Mortar has good workability and workability, and is easy to use; Have water proof anti-seepage, ultimate compression strength height, storage and convenient transportation, advantage such as free from environmental pollution simultaneously.
Embodiment
According to engineering and client's actual needs, by adjusting the invention prescription, can obtain needed performance index, the invention will be further described below by embodiment, but and do not mean that qualification to protection domain of the present invention.
Embodiment 1
Be ready to various starting material according to processing requirement, take by weighing successively by weight percentage: silicate cement 35%, flyash 15%, slag powders 5%, (polyethylene vinyl acetate emulsion 50% forms with ACRYLIC EMULSION 25% and polyvinyl alcohol 25% copolymerization) ternary latex powder 10%, sepiolite 12%, silicon calcium powder 11%, polypropylene fibre 0.35%, brucite fiber 0.15%, poly-ethyl hydroxyl silicone emulsion 10%, sodium laurylsulfonate 1.5%, be prepared according to preparation method of the present invention, mix the back pack and get final product; The insulating dry powder mortar that makes adds an amount of water, presses standard-required moulding sample, and every after testing performance index are: loose bulk density 335Kg/m 3, sclerosis dry density 430Kg/m 3, ultimate compression strength (28 days) 6.5MPa, bonding strength 1.3MPa, thermal conductivity 0.105W/m.k.
Embodiment 2
Be ready to various starting material according to processing requirement, take by weighing successively by weight percentage: silicate cement 50%, flyash 18%, (polyethylene vinyl acetate emulsion 50% forms with ACRYLIC EMULSION 50% copolymerization) binary latex powder 5%, perlite 11.7%, quartz sand 7.8%, polypropylene fibre 0.2%, brucite fiber 0.3%, water-based aqueous silane 6%, sulfonated trimeric cyanamide 1% is prepared according to preparation method of the present invention, mixes the back pack and gets final product; The insulating dry powder mortar that makes adds an amount of water, presses standard-required moulding sample, and every after testing performance index are: loose bulk density 315Kg/m 3, sclerosis dry density 415Kg/m 3, ultimate compression strength (28 days) 5.3MPa, bonding strength 1.5MPa, thermal conductivity 0.092W/m.k.
Embodiment 3
Be ready to various starting material according to processing requirement, take by weighing successively by weight percentage: silicate cement 60%, slag powders 25%, (polyethylene vinyl acetate emulsion 60% forms with ACRYLIC EMULSION 25% and polyvinyl alcohol 15% copolymerization) ternary latex powder 8.5%, flame retardant polystyrene foam particle 5%, polypropylene fibre 0.25%, brucite fiber 0.25%, sec.-propyl three isostearoyl base titanic acid ester 0.5%, 2000 trade mark polycarboxylate water-reducers 0.5% of KAO. Corp. SA, be prepared according to preparation method of the present invention, mix the back pack and get final product; The insulating dry powder mortar that makes adds an amount of water, presses standard-required moulding sample, and every after testing performance index are: loose bulk density 345Kg/m 3, sclerosis dry density 435Kg/m 3, ultimate compression strength (28 days) 6.0MPa, bonding strength 1.1MPa, thermal conductivity 0.112W/m.k.
Embodiment 4
Be ready to various starting material according to processing requirement, take by weighing successively by weight percentage: silicate cement 42%, flyash 5%, slag powders 10%, (polyethylene vinyl acetate emulsion 40% forms with ACRYLIC EMULSION 40% and polyvinyl alcohol 20% copolymerization) ternary latex powder 7%, flame retardant polystyrene foam particle 5%, vermiculite 10%, silicon calcium powder 10%, polypropylene fibre 0.1%, brucite fiber 0.1%, poly-ethyl hydroxyl silicone emulsion 10%, the 100pH trade mark polycarboxylate water-reducer 0.8% of Grace company, be prepared according to preparation method of the present invention, mix the back pack and get final product; The insulating dry powder mortar that makes adds an amount of water, presses standard-required moulding sample, and the every performance index of fine detection are: loose bulk density 300Kg/m 3, sclerosis dry density 410Kg/m 3, ultimate compression strength (28 days) 5.5MPa, bonding strength 1.3MPa, thermal conductivity 0.090W/m.k.
Embodiment 5
Be ready to various starting material according to processing requirement, take by weighing successively by weight percentage: silicate cement 45%, flyash 14%, slag powders 5%, (polyethylene vinyl acetate emulsion 60% forms with polyvinyl alcohol 40% copolymerization) binary latex powder 12%, flame retardant polystyrene foam particle 2%, haydite 8%, quartz sand 12%, polypropylene fibre 0.3%, brucite fiber 0.2%, trolamine titanic acid ester 0.5%, Sika company 1100 serial polycarboxylate water-reducers 0.5%, calcium increasing agent 0.5% is prepared according to preparation method of the present invention, mixes the back pack and gets final product; The insulating dry powder mortar that makes adds an amount of water, presses standard-required moulding sample, and every after testing performance index are: loose bulk density 325Kg/m 3, sclerosis dry density 420Kg/m 3, ultimate compression strength (28 days) 5.8MPa, bonding strength 1.25MPa, thermal conductivity 0.108W/m.k.
The performance index of above embodiment are pressed routine method and are detected:
Density, ultimate compression strength are pressed JGJ70-90 " testing method of building mortar fundamental property " and are measured; Bonding strength is pressed JGJ110-98 " construction work facing tile bonding strength inspecting standard " and is measured; Thermal conductivity is pressed JGJ51-90 " light aggregate concrete technical regulation " and is measured.

Claims (6)

1, a kind of insulating dry powder mortar comprises silicate cement, flyash and/or slag powders, the weight percent that it is characterized in that each component is: silicate cement 35-60%, flyash and/or slag powders 5-25%, organic polymer latex powder 1-15%, flame retardant polystyrene foam particle 0-5%, heat insulation aggregate 5-30%, conjugated fibre 0.01-0.65%, water-proofing agent 0-10%, admixture 0-2.5%; Described organic polymer latex powder is the copolymer of polyethylene vinyl acetate emulsion and ACRYLIC EMULSION or polyvinyl alcohol, or the terpolymer of polyethylene vinyl acetate emulsion and ACRYLIC EMULSION and polyvinyl alcohol; Described conjugated fibre contains the polypropylene fibre of 40-70% (weight percent) and the brucite fiber of 30-60% (weight percent), and the length of polypropylene fibre is 3-12mm.
2, insulating dry powder mortar according to claim 1 is characterized in that described flyash and/or slag powders particle diameter are 10-100um, and its carbon content weight percent is 0.5-1.5%.
3, insulating dry powder mortar according to claim 1 is characterized in that described flame retardant polystyrene foam grain diameter is 0.5-4.5mm, and particle diameter is that the ratio of 0.5-1.5mm and 1.5-2.5mm and 2.5-4.5mm weight percent is 1-3: 4-6: 2-4.
4, insulating dry powder mortar according to claim 1; it is characterized in that described heat insulation aggregate contains silicon calcium powder or the quartz sand of the pearlstone of 20-60% (weight percent), sepiolite, vermiculite, haydite or hollow glass micropearl and 40-80% (weight percent), its particle diameter is the 10-600 order.
5, insulating dry powder mortar according to claim 1 is characterized in that described water-proofing agent is one or more the mixture in poly-ethyl hydroxyl silicone emulsion, aqueous silane, the titanic acid ester.
6, insulating dry powder mortar according to claim 1 is characterized in that described admixture is one or both the mixture in poly carboxylic acid series water reducer, dodecane sulfonate, alkylbenzene sulfonate, sulfonated trimeric cyanamide, polyethylene glycol, trolamine, formate, the calcium increasing agent.
CN200910043100A 2009-04-13 2009-04-13 Insulating dry powder mortar Pending CN101525226A (en)

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CN101891443A (en) * 2010-06-28 2010-11-24 巢启 Heat-insulating profile with low heat conductivity
CN102145988A (en) * 2011-04-12 2011-08-10 康伟 Dry powder mortar and preparation method thereof
CN102166102A (en) * 2011-04-14 2011-08-31 司徒建辉 Thermos bottle
CN102219454A (en) * 2011-04-14 2011-10-19 司徒建辉 Foaming cement
CN102491684A (en) * 2011-12-07 2012-06-13 武汉奥捷高新技术有限公司 Imitated ceramic decorative mortar
CN103204649A (en) * 2012-01-16 2013-07-17 陕西亿丰绿色建筑材料有限公司 Heat insulation board capable of blocking hot and cold bridge, and preparation method thereof
CN103223751A (en) * 2013-03-14 2013-07-31 南京工业大学 Heat-insulation flexible face brick and making method thereof
CN103253911A (en) * 2013-04-24 2013-08-21 中国石油大学(北京) Ocean-engineering anti-erosion cement-based composite material
CN103467021A (en) * 2013-09-02 2013-12-25 济南大学 Polymer modified portland cement packaging material
CN103570321A (en) * 2012-08-08 2014-02-12 吉安市艾生建材科技有限公司 Economical inorganic insulating mortar and production method thereof
CN103641425A (en) * 2013-11-08 2014-03-19 许炜 Energy-saving, fireproof and crack-resistant polyphenyl granule mortar for construction
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Cited By (51)

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Publication number Priority date Publication date Assignee Title
CN101891443A (en) * 2010-06-28 2010-11-24 巢启 Heat-insulating profile with low heat conductivity
CN102145988A (en) * 2011-04-12 2011-08-10 康伟 Dry powder mortar and preparation method thereof
CN102166102A (en) * 2011-04-14 2011-08-31 司徒建辉 Thermos bottle
CN102219454A (en) * 2011-04-14 2011-10-19 司徒建辉 Foaming cement
CN102491684A (en) * 2011-12-07 2012-06-13 武汉奥捷高新技术有限公司 Imitated ceramic decorative mortar
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