CN101195529A - Heat preserving crack resistant mortar for exterior wall - Google Patents

Heat preserving crack resistant mortar for exterior wall Download PDF

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Publication number
CN101195529A
CN101195529A CN 200710093153 CN200710093153A CN101195529A CN 101195529 A CN101195529 A CN 101195529A CN 200710093153 CN200710093153 CN 200710093153 CN 200710093153 A CN200710093153 A CN 200710093153A CN 101195529 A CN101195529 A CN 101195529A
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China
Prior art keywords
mortar
cracking mortar
cement
methyl cellulose
sand
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CN 200710093153
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Chinese (zh)
Inventor
张建新
彭家惠
美 李
青 李
冷 白
瞿金东
陈明凤
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重庆大学
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Priority to CN 200710093153 priority Critical patent/CN101195529A/en
Publication of CN101195529A publication Critical patent/CN101195529A/en

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/08Slag cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34Non-shrinking or non-cracking materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant materials
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement
    • Y02P40/14Reduction of clinker content in cement
    • Y02P40/141Blended cements
    • Y02P40/145Clinker replacement by combustion residues

Abstract

Disclosed is crack resistant mortar for exterior wall insulation. The superfine sand crack resistant mortar for exterior wall insulation mainly comprises 25-48% of cement, 0.2-2.4% of polymer binder, 0.05-0.3% of fiber, 1-5.8% of expansive agent and 44-73% of superfine sand. Shrinkage of the superfine sand crack resistant mortar is decreased by controlling mud content of the superfine sand and cement content, fiber and polymer binder is employed to increase toughness of the mortar, and shrinkage-compensating of the expansive and the like comprehensive measures are employed to improve the crack resistance of the superfine sand crack resistant mortar. The crack resistant mortar is good in workability and application property, low in ratio of compressive strength, high in bond strength, low in shrinkage and excellent in crack resistance. The crack resistant mortar of the invention is mainly used for exterior wall insulation of buildings.

Description

外墙保温抗裂砂浆 External wall insulation cracking mortar

技术领域 FIELD

本发明涉及建筑物外墙保温抗裂砂浆。 The present invention relates to a building facade insulation cracking mortar.

背景技术 Background technique

在2006年的《中国涂料》第21巻第2期上刊登了"外保温抗裂砂浆材料性能影响因素分析"。 In the 2006 "China Coatings" Volume 21, Issue 2 published "Cracking performance factors mortar exterior insulation materials analysis." 该文通过外保温抗裂砂浆的作用、功能及基本性能,分析了抗裂砂浆性能的影响因素及在抗裂砂浆中的抗裂机理。 The paper through the outer insulation cracking mortar effect, the functions and performance analysis of the factors affecting the performance of the cracking mortar cracking and crack Mechanism mortar. 其组分为42. 5R普通硅酸盐水泥、含泥量小于3%和含水量小于2%的中砂、乳液、纤维、防腐剂、消泡剂、早强剂、填料。 42. 5R which component of ordinary portland cement, clay content less than 3% and a moisture content of less than 2% of the sand, an emulsion, a fiber, a preservative, a defoaming agent, a hardening accelerator, a filler. 其配制方法是将特制水泥抗裂剂、普通42.5R水泥与中砂,按1 : 1 : 3重量比搅拌后使用,即得水泥抗裂砂浆拌合料。 The method is specially formulated cement cracking agent, Common 42.5R cement and sand, 1: 1: 3 weight ratio of use after stirring, to obtain cement mortar mix to cracking. 在2006年的《新型建筑材料》第3期上刊登了"外墙外保温抗裂砂浆性能研究"。 In the 2006 "new building materials" The first three published "research mortar for exterior wall insulation cracking." 该文研究可再分散乳胶粉掺量对用于墙体薄抹灰的抗裂干粉砂桨的压折比、耐冻融性、千燥收缩性的影响,系统评价该种砂浆的抗裂性能,同时也从压覆网格布、刷弹性养护液等施工工艺角度分析提高抗裂砂浆的措施。 In this paper redispersible powder dosage crimping pitch than cracking of dry powder for thin wall plastering, the freeze-thaw resistance, dry in shrinkage effects, crack resistance of the system evaluated Mortar species , improving measures also analyzed from cracking mortar pressed with mesh cloth, brush maintenance liquid or the like elastic angular construction process. 其组成为32. 5普通硅酸盐水泥、粉煤灰、70〜140目河砂、乙烯一醋酸乙烯乳胶粉、玻璃纤维、无机矿粉。 32.5 consisting of ordinary Portland cement, fly ash, river sand 70~140 mesh, a vinyl acetate ethylene latex powder, glass fiber, inorganic mineral powders. 其配制方法是由抗裂胶粉、水泥和砂预先进行干混,制成抗裂干粉砂桨。 Formulated by the method of cracking powder, cement and sand were dry-blended in advance to prepare a paddle cracking of dry powder. 抗裂胶粉由乳胶粉、耐碱玻璃纤维、体积稳定剂和聚合物改性剂按比例组成。 Cracking powder from latex powder, alkali-resistant glass fibers, stabilizers and the volume of polymer modifiers scale composition. 在2006年的《节能》第11期上刊登了"不同乳胶粉对抗裂砂桨抗裂性能的影响", 该文通过研究3种乳胶粉不同掺量对砂浆的压折比、耐冻融性、干燥收缩性的影响,评价国内外不同乳胶粉对砂浆的抗裂性能的改善作用。 In the 2006's "energy" of the publication "Effects of polymer powders on crack mortar crack resistance", the paper by the emulsion powder of three kinds of different dosage than crimping mortar, freeze-thaw resistance Effect of drying shrinkage, to evaluate the effect of different polymer powders improve crack resistance of mortar and abroad. 其材料配方为:水泥155、 20〜140目河砂775、乳胶粉0〜30、保水剂1.5、膨胀剂3.8、粉煤灰62。 Formulation of the material: 155 cement, river sand 20~140 mesh 775, 0~30 polymer powders, water retention agents 1.5, 3.8 expanding agent, fly ash 62. 前述两篇文献虽然涉及了外保温抗裂砂浆的材料组成和配制方法,但没有介绍材料配方;第三篇文献涉及了外保温抗裂砂浆的配方,但未介绍配制方法。 Although the aforementioned two documents relates to the material composition and outer insulation cracking mortar formulation process, but does not describe the material recipe; Part III relates to document the outer insulation cracking mortar formulation, method of preparation but not presented. 三篇文章中抗裂砂浆用砂均不是特细砂。 Three articles cracking mortar sand are not extra fine sand.

经检索国内外相关科技文献,对外保温抗裂砂浆研究虽然较多,但其用砂均不是特细砂, 其用砂多为中砂。 Retrieved domestic and foreign scientific literature, external insulation mortar cracking although more research, but the sand was not a special sand, sand and more for its sand. 特细砂细度小、含泥量高、需水量大,用其配制抗裂砂浆,往往抗裂性差。 Patent sand small fineness, a high clay content, high water demand, formulated with mortar cracking, cracking often poor. 用特细砂配制外墙保温抗裂砂浆的制备方法前述第2篇文章中已有述及。 Preparation formulated with external insulation Laid sand mortar cracking the second article mentioned already.

本发明所用的组分为市售产品。 Group used in the present invention into a commercial product.

发明内容 SUMMARY

本发明的目的在于针对上述现有技术的不足,提供一种外墙保温抗裂砂浆,该砂浆和易性好、抗压和抗折强度较高、压折比低、粘结强度高、收缩率低、抗裂性优异。 For purposes of the present invention is less than the above prior art, to provide an external wall insulation cracking mortar, the mortar good workability, high compressive and flexural strength, crimp ratio is low, high bond strength, shrinkage low, it is excellent in crack resistance. 为了实施上述发明目的,其技术方案是- In order to implement the above object, the technical scheme is -

外墙保温抗裂砂浆包括以下组分和重量百分比: Exterior insulation cracking mortar comprising the following components and weight percentages:

水泥25〜48 高分子粘结剂0.2〜2.4 高分子保水剂0.025〜0.2 Polymer binder 0.2~2.4 25~48 cement super absorbent polymer 0.025~0.2

纤维0. 05〜0. 3 Fiber 0. 05~0. 3

膨胀剂1〜5.8 特细砂44〜73 Expanders 1~5.8 extra fine sand 44~73

其中: among them:

水泥为下列水泥中的任意一种水泥: Cement is a cement of any of the following cement:

32. 5或42. 5矿渣硅酸盐水泥, 32.5 or 42.5 slag cement,

32.5或42.5普通硅酸盐水泥, 32.5 or 42.5 ordinary portland cement,

32. 5或42. 5火山灰质硅酸盐水泥, 32.5 or 42.5 pozzolana cement,

32. 5或42. 5粉煤灰硅酸盐水泥; 32.5 or 42.5 fly ash Portland cement;

高分子粘结剂:乙烯一醋酸乙烯共聚乳胶粉, Polymer Binder: ethylene-vinyl acetate copolymer latex powder,

或聚乙烯醇胶粉; 高分子保水剂:甲基纤维素醚, Or a polyvinyl alcohol powder; super absorbent polymer: methyl cellulose ether,

或羟丙基甲基纤维素醚, 或羧甲基纤维素醚; 纤维:聚丙烯纤维, Ether or hydroxypropyl methyl cellulose, carboxymethyl cellulose, or ether; fibers: polypropylene fibers,

或尼龙一6纤维, 或抗碱玻璃纤维, ,或维尼纶纤维; 膨胀剂:硫铝酸钙类膨胀剂, A 6 or nylon fibers, glass fibers, or alkali, or vinylon fibers; bulking agent: calcium sulfoaluminate based expansive agent,

或硫铝酸钙氧化钙类膨胀剂, 或氧化钙类膨胀剂; 特细砂:细度模数M,为0.7〜1.5,含泥量《3%。 Calcium oxide or calcium sulfoaluminate based expansive agent, or calcium oxide-based bulking agent; extra fine sand: fineness modulus M, is 0.7~1.5, clay content of "3%. 本发明与现有技术相比具有如下技术效果: The prior art and the present invention has the following technical effects as compared:

(1) 控制特细砂含泥量和水泥用量,以降低砂浆塑性收縮,采用纤维和高分子粘结剂增加砂桨的韧性,提高抗裂性。 (1) controlling the amount of extra fine sand clay and cement, in order to reduce plastic shrinkage of mortar, using a polymer binder fiber and mortar to increase the toughness, and improved crack resistance.

(2) 采用高分子保水剂,降低砂浆的干燥速度,以降低塑性收縮,采用膨胀剂补偿收縮提高砂浆的抗裂性。 (2) super absorbent polymer, reducing the drying rate of the mortar, in order to reduce plastic shrinkage, shrinkage compensation expansive agent employed to improve the crack resistance of mortar.

(3) 该材料和易性与施工性好,压折比低,粘结强度高,收縮率低,抗裂性优异。 (3) The material and construction workability is good, a low pressure off ratio, high bond strength, low shrinkage, crack resistance is excellent.

在砂浆中采用高分子粘结剂,可使砂浆的和易性得到显著改善,粘结强度大幅度提高, 压折比降低,砂浆的脆性降低,韧性提高。 Polymer binder employed mortar, mortar workability can be significantly improved, greatly improved bond strength, crimp ratio decreases, mortar reduced brittleness, toughness is improved. 通过不同结构、类型粘结剂对性能影响的对比试验,采用其中一种粘结剂乙烯一醋酸乙烯共聚乳胶粉,与粘结剂掺量为0 (即基准外墙保温 Different structures, types of binders affect the performance comparison test, using one of a ethylene-vinyl acetate copolymer binder emulsion powder, and a binder dosage of 0 (i.e. reference external insulation

抗裂砂浆)的外墙保温抗裂砂浆相比,当这种粘结剂掺量为1.5%时,拉伸粘结强度提高了45%,压折比降低了24%,其韧性大大改善。 Cracking mortar) as compared to cracking mortar wall insulation, when such a binder dosage of 1.5%, tensile bond strength increased by 45%, reduced creasing toughness than 24%, much improved.

为了改善外墙保温抗裂砂浆的保水性和施工性,需采用高分子保水剂。 In order to improve water retention and construction of external wall insulation mortar cracking, it requires the use of super absorbent polymer. 本发明采用纤维素醚类保水剂。 The present invention uses cellulose ethers retaining agent. 采用0.2%羧甲基纤维素醚保水剂的抗裂砂浆与未掺保水剂的砂浆相比,分层度、泌水率分别降低了74%和98.9%,粘聚性、保水性显著提高。 Using 0.2% carboxymethyl cellulose ether aquasorb compared to undoped cracking mortar mortar retaining agent, the degree of stratification, bleeding rates were reduced by 74% and 98.9%, cohesiveness, significantly improved water retention.

为了改善抗裂砂浆的抗裂性,以满足外墙保温抗裂需要,与纤维掺量为0 (即基准外墙保温抗裂砂浆)的抗裂砂浆相比,当聚丙烯纤维掺量为0.15%时,抗裂砂浆的断裂能提高了86%,极限变形量提高了90%。 To improve the crack resistance of mortar cracking, thermal cracking needs to meet the exterior wall, as compared with fiber content is 0 (i.e., the reference exterior insulation cracking mortar) cracking mortar, when the polypropylene fiber content is 0.15 %, the cracking mortar breaking energy increased 86%, the amount of deformation limit increased by 90%. 从各纤维的耐碱性与分散性来看,聚丙烯纤维最好。 Alkali resistance and the dispersibility of the individual fibers of view, preferably polypropylene fibers. 其良好的分散性与柔韧性,可满足抗裂砂浆的和易性与施工性,良好的耐碱性又可保证其耐久性。 Its good dispersion and flexibility to meet the workability and workability of mortar cracking, good alkali resistance but also to ensure their durability.

抗裂砂浆收縮是其变形开裂的主要原因。 Cracking mortar shrinkage cracking deformation is the main reason. 本发明采用膨胀剂可补偿收縮。 The present invention uses the expansion agent can compensate for shrinkage. 采用水泥重量6%的氧化钙类膨胀剂,抗裂砂浆的28d干缩率可降低30. 2%。 Using cement weight calcium oxide-based bulking agent, 28d drying shrinkage cracking mortar 6% of a 30.2% decrease.

试验表明:当外墙保温抗裂砂浆配比(重量百分比)为:32. 5普通硅酸盐水泥28、特细砂68.35、乙烯一醋酸乙烯共聚乳胶粉0.4、聚丙烯纤维0.05、甲基纤维素醚0. 2、硫铝酸钙一氧化钙类膨胀剂3,该抗裂砂浆性能为:压折比1.96、常温拉伸粘结强度0.94MPa、可操作时间内拉伸粘结强度0. 88MPa、浸水拉伸粘结强度0. 72MPa、可操作时间2h,满足JG158-2004 《胶粉聚苯颗粒外墙外保温系统》标准中对^裂砂浆的要求。 Test showed that: when the external wall insulation mortar cracking ratio (by weight) of: 28 ordinary Portland cement 325, sand Laid 68.35, an ethylene-vinyl acetate copolymer 0.4 latex powder, polypropylene fibers 0.05, methylcellulose Su ether 0.2, a calcium oxide, calcium sulfoaluminate type expansive agent 3, the cracking mortar properties: crimp ratio of 1.96, a normal temperature tensile bond strength 0.94MPa, tensile bond strength within the operable time 0. 88MPa, tensile bond strength immersion 0. 72MPa, operating time 2h, meet JG158-2004 "powder polystyrene particles exterior insulation system" standard for ^ crack mortar.

具体实施方式 Detailed ways

外墙保温抗裂砂浆按以下具体组分和重量百分比配制: Exterior insulation cracking mortar prepared according to the following percentages by weight of the particular components and:

实施例h Example h

32. 5普通硅酸盐水泥28 乙烯一醋酸乙烯共聚乳胶粉0.4 甲基纤维素醚0.2 Ordinary Portland Cement 28 32.5 Ethylene-vinyl acetate copolymer latex powder methyl cellulose ether 0.4 0.2

聚丙烯纤维0.05 Polypropylene fibers 0.05

硫铝酸钙—氧化钙类膨胀剂3 Calcium sulfoaluminate - 3 CaO-based bulking agent

特细砂68.35。 Extra fine sand 68.35.

实施例2: Example 2:

实施例3: Example 3:

32. 5粉煤灰硅酸盐水泥 48 48 Portland cement 32.5 Ash

乙烯一醋酸乙烯共聚乳胶粉 0.2 Ethylene-vinyl acetate copolymer latex powder 0.2

羟丙基甲基纤维素醚 0. 1 Hydroxypropyl methyl cellulose ether 0.1

聚丙烯纤维 0.3 Polypropylene fibers 0.3

硫铝酸钙类膨胀剂 5.8 Calcium sulfoaluminate based expansive agent 5.8

特细砂 45.6。 Extra fine sand 45.6.

42.5火山灰质硅酸盐水泥 40 42.5 pozzolana cement 40

聚乙烯醇胶粉 0.5 Polyvinyl alcohol powder 0.5

甲基纤维素醚 Methyl cellulose ethers

0. 05实施例4: 0.05 Example 4:

尼龙一6纤维 0. 25 A nylon 6 fiber 0.25

氧化钙类膨胀剂 2.4 Calcium oxide-based bulking agent 2.4

特细砂 56.8。 Extra fine sand 56.8.

42. 5矿渣硅酸盐水泥 35 42.5 slag cement 35

聚乙烯醇胶粉 1 Polyvinyl alcohol powder 1

羧甲基甲基纤维素醚 0.15 Carboxymethyl methyl cellulose ether 0.15

维尼论纤维 0.1 On the Pooh fiber 0.1

硫铝酸钙一氧化钙类膨胀剂 4.5 A calcium sulfoaluminate based expansive agent 4.5 Calcium oxide

特细砂 59,25。 Extra fine sand 59,25.

实施例5: Example 5:

实施例7: Example 7:

42. 5普通硅酸盐水泥 30 42.5 Ordinary Portland Cement 30

乙烯—醋酸乙烯共聚乳胶粉 1. 5 Ethylene - vinyl acetate copolymer latex powder 1.5

羟丙基甲基纤维素醚 0. 025 Hydroxypropyl methyl cellulose ethers 0.025

抗碱玻璃纤维 0. 15 Alkali-resistant glass fibers 0.15

硫铝酸钙类膨胀剂 1. 5 Calcium sulfoaluminate based expansive agent 1.5

特细砂 66. 825。 Special sand 66.825.

42. 5粉煤灰硅酸盐水泥 25 25 Portland cement 42.5 Ash

聚乙烯醇胶粉 0. 8 Polyvinyl alcohol powder 0.8

甲基纤维素醚 0. 15 Methyl cellulose ether 0.15

维尼纶纤维 0. 05 Vinylon fiber 0.05

氧化钙类膨胀剂 1 Calcium-based oxide expanders 1

特细砂 73' Patent sand 73 '

32. 5矿渣硅酸盐水泥 47. 8 Slag cement 32.5 47.8

乙烯一醋酸乙烯共聚乳胶粉 2. 4 Ethylene-vinyl acetate copolymer latex powder 2.4

羧甲基纤维素醚 0. 2 Carboxymethylcellulose ether 0.2

抗辨玻璃纤维 0. 1 Glass fibers 0.1 defenses

硫铝酸钙一氧化钙类膨胀剂 5. 5 A calcium sulfoaluminate based expansive agent 5.5 Calcium oxide

特细砂 44 < Patent sand 44 <

实施例8: Example 8:

32. 5火山灰质硅酸盐水泥 42 32.5 pozzolana cement 42

乙烯一醋酸乙烯共聚乳胶粉 2 Ethylene-vinyl acetate copolymer emulsion powder 2

羟丙基甲基纤维素醚 0.1 Hydroxypropyl methyl cellulose ether 0.1

聚丙烯纤维 0.2 Polypropylene fibers 0.2

硫铝酸钙类膨胀剂 3.5 Calcium sulfoaluminate based expansive agent 3.5

特细砂 52.2。 Extra fine sand 52.2.

32. 5普通硅酸盐水泥 32.7 32.5 32.7 Ordinary Portland Cement

乙烯一醋酸乙烯共聚乳胶粉 1 Ethylene-vinyl acetate copolymer emulsion powder 1

甲基纤维素醚 0.15 Methyl cellulose ether 0.15

聚丙烯纤维 0.15 Polypropylene fibers 0.15

氧化钙类膨胀剂 5 Calcium oxide-based bulking agent 5

特细砂 61。 61 special sand.

Claims (10)

1.一种外墙保温抗裂砂浆,其特征在于该砂浆的组分及重量百分比为: 水泥25~48 高分子粘结剂0.2~2.4 高分子保水剂0.025~0.2 纤维0.05~0.3 膨胀剂1~5.8 特细砂44~73 其中: 水泥为下列水泥中的任意一种: 32.5或42.5矿渣硅酸盐水泥, 32.5或42.5普通硅酸盐水泥, 32.5或42.5火山灰质硅酸盐水泥, 32.5或42.5粉煤灰硅酸盐水泥; 高分子粘结剂:乙烯-醋酸乙烯共聚乳胶粉, 或聚乙烯醇胶粉; 高分子保水剂:甲基纤维素醚, 或羟丙基甲基纤维素醚, 或羧甲基纤维素醚; 纤维:聚丙烯纤维, 或尼龙-6纤维, 或抗碱玻璃纤维, 或维尼纶纤维; 膨胀剂:硫铝酸钙类膨胀剂, 或硫铝酸钙-氧化钙类膨胀剂, 或氧化钙类膨胀剂; 特细砂:细度模数Mx为0.7~1.5,含泥量≤3%。 An external wall insulation cracking mortar, characterized in that component weight percentage of the mortar is: 25 to 48 polymer cement binder from 0.2 to 2.4 0.025 to 0.2 super absorbent polymer and fiber bulking agent 0.05 to 0.3 1 ~ 5.8 44 ~ 73 wherein Laid sand: cement in the cement of any one of the following: 32.5 or 42.5 slag cement, ordinary portland cement 32.5 or 42.5, 32.5 or 42.5 pozzolana cement, or 32.5 fly ash Portland cement 42.5; polymer binder: ethylene - vinyl acetate copolymer latex powder, or a polyvinyl alcohol powder; super absorbent polymer: methyl cellulose ethers, hydroxypropyl methyl cellulose ethers, or , or carboxymethylcellulose ether; fibers: polypropylene fibers, or nylon-6 fibers, or alkali glass fiber, or vinylon fibers; bulking agent: calcium sulfoaluminate based expansive agent, or calcium sulfoaluminate - oxidation calcium-based bulking agent, or calcium oxide-based bulking agent; extra fine sand: fineness modulus Mx of 0.7 to 1.5, the amount of clay ≤3%.
2. 根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比:32.5普通硅酸盐水泥28 '乙烯一醋酸乙烯共聚乳胶粉0.4 甲基纤维素醚0.2 聚丙烯纤维0.05硫铝酸钙一氧化钙类膨胀剂3 特细砂68.35。 Exterior insulation according to claim cracking mortar to claim 1, wherein the weight percentage of the specific components of external insulation cracking mortar: Portland cement 32.5 28 'a ethylene-vinyl acetate copolymer latex powder 0.4 methyl cellulose ether of polypropylene fibers 0.2 0.05 a calcium sulfoaluminate based expansive agent calcium oxide 68.35 3 extra fine sand.
3. 根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比:32.5粉煤灰硅酸盐水泥48 乙烯一醋酸乙烯共聚乳胶粉0.2 羟丙基甲基纤维素醚0.1聚丙烯纤维0.3硫铝酸钙类膨胀剂5.8特细砂45.6。 Exterior insulation according to claim cracking mortar to claim 1, wherein the weight percentage of the specific components of external insulation cracking mortar: Portland cement 32.5 Ash 48 a ethylene-vinyl acetate copolymer latex powder 0.2 hydroxypropyl methyl cellulose ethers of polypropylene fibers 0.1 0.3 5.8 calcium sulfoaluminate based expansive agent Laid sand 45.6.
4. 根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比:42.5火山灰质硅酸盐水泥 40聚乙烯醇胶粉 0.5甲基纤维素醚 0. 05尼龙一6纤维 0. 25氧化钙类膨胀剂 2.4特细砂 56.8。 Exterior insulation according to claim cracking mortar to claim 1, wherein the weight percentage of the specific components of external insulation cracking mortar: Portland pozzolana cement 40 42.5 polyvinyl alcohol 0.5 methyl powder a cellulose ether, nylon 6 fiber 0.05 0.25 calcium oxide-based bulking agent 56.8 2.4 Laid sand.
5. 根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比: 42.5矿渣硅酸盐水泥35 聚乙烯醇胶粉1 羧甲基甲基纤维素醚0.15 维尼纶纤维0.1硫铝酸钙一氧化钙类膨胀剂4.5特细砂59.25。 The external wall insulation cracking mortar according to claim 1, characterized in that the weight percentage of the specific components of external insulation cracking mortar: Portland cement 42.5 slag powder 1 35 carboxymethyl polyvinylalcohol methyl cellulose ether 0.1 0.15 vinylon fibers a calcium sulfoaluminate based expansive agent 4.5 calcium oxide 59.25 extra fine sand.
6. 根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比:42.5普通硅酸盐水泥30乙烯一醋酸乙烯共聚乳胶粉1.5羟丙基甲基纤维素醚0.025抗碱玻璃纤维0.15硫铝酸钙类膨胀剂1.5特细砂66.825。 6. The exterior insulation according to claim 1 cracking mortar, characterized in that the external wall insulation cracking mortar particular components and weight percentages: Portland cement 42.5 30 a ethylene-vinyl acetate copolymer latex powder 1.5 hydroxyethyl methyl cellulose ether 0.15 0.025 fiberglass alkali calcium sulfoaluminate based expansive agent 1.5 66.825 extra fine sand.
7. 根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比-42.5粉煤灰硅酸盐水泥25 聚乙烯醇胶粉0.8 甲基纤维素醚0.15维尼纶纤维0.05氧化钙类膨胀剂1 特细砂73。 Exterior insulation according to claim cracking mortar to claim 1, characterized in that the external wall insulation cracking mortar composition and specific weight percentage of fly ash Portland cement -42.5 0.8 25 A polyvinyl alcohol powder vinylon fiber cellulose ether 0.15 0.05 1 calcium oxide-based bulking agent extra fine sand 73.
8. 根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比:32.5矿渣硅酸盐水泥 47.8乙烯一醋酸乙烯共聚乳胶粉 2.4羧甲基纤维素醚 0.2抗碱玻璃纤维 0. 1硫铝酸钙一氧化钙类膨胀剂 5.5特细砂 44。 Exterior insulation according to claim 1, wherein said cracking mortar, characterized in that the external wall insulation cracking mortar particular components and weight percentages: 47.8 32.5 slag cement ethylene-vinyl acetate copolymer a carboxylated latex powder 2.4 methyl cellulose ethers alkali glass fiber 0.2 0.1 a calcium sulfoaluminate based expansive agent 5.5 calcium oxide 44 extra fine sand.
9.根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比-32.5火山灰质硅酸盐水泥 42乙烯一醋酸乙烯共聚乳胶粉 2羟丙基甲基纤维素醚 0.1聚丙烯纤维 0.2硫铝酸钙类膨胀剂 3.5特细砂 52.2。 Exterior insulation according to claim cracking mortar to claim 1, characterized in that the external wall insulation cracking mortar composition and specific weight percentage of pozzolana cement -32.5 42 a ethylene-vinyl acetate copolymer emulsion powder 2 hydroxypropyl methyl cellulose ethers of polypropylene fibers 0.1 0.2 3.5 calcium sulfoaluminate based expansive agent Laid sand 52.2.
10.根据权利要求1所述的外墙保温抗裂砂浆,其特征在于该外墙保温抗裂砂浆的具体组分及重量百分比:32.5普通硅酸盐水泥32. 7 乙烯一醋酸乙烯共聚乳胶粉1 甲基纤维素醚0.15聚丙烯纤维0.15氧化钙类膨胀剂5特细砂6.1。 Exterior insulation according to claim cracking mortar to claim 1, wherein the weight percentage of the specific components of external insulation cracking mortar: Portland cement 32.5 32.7 a ethylene-vinyl acetate copolymer latex powder a methyl cellulose ether 0.15 0.15 calcium oxide type polypropylene fiber bulking agent 5 6.1 Laid sand.
CN 200710093153 2007-12-17 2007-12-17 Heat preserving crack resistant mortar for exterior wall CN101195529A (en)

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