CN101993226A - High-performance polyurethane external thermal insulation anti-crack leveling mortar and construction method thereof - Google Patents

High-performance polyurethane external thermal insulation anti-crack leveling mortar and construction method thereof Download PDF

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Publication number
CN101993226A
CN101993226A CN 201010294133 CN201010294133A CN101993226A CN 101993226 A CN101993226 A CN 101993226A CN 201010294133 CN201010294133 CN 201010294133 CN 201010294133 A CN201010294133 A CN 201010294133A CN 101993226 A CN101993226 A CN 101993226A
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CN
China
Prior art keywords
component
leveling mortar
cracking resistance
polyurethane external
performance polyurethane
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Pending
Application number
CN 201010294133
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Chinese (zh)
Inventor
钱中秋
马德功
杨江金
张菁燕
朱国峰
周春荣
刘小泉
蒋青青
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Changzhou Architectural Research Institute Co., Ltd.
Jiangsu Nigao Technology Co., Ltd.
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CHANGZHOU CONSTRUCTION SCIENCE INST Co Ltd
JIANGSU NIGAO TECHNOLOGY Co Ltd
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Priority to CN 201010294133 priority Critical patent/CN101993226A/en
Publication of CN101993226A publication Critical patent/CN101993226A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a high-performance two-component polyurethane external thermal insulation anti-crack leveling mortar which is prepared by mixing a component A and a component B, wherein the component A comprises the following compositions in percentage by weight: 60 to 80 percent of gelled materials, 20 to 30 percent of aggregates and 0 to 10 percent of functional admixtures; and the component B is water repellents. The construction method of the mortar comprises the following steps: mixing the component A and the component B; adding an appropriate amount of water in the obtained mixture; and uniformly stirring the obtained object until the obtained object reaches the consistence suitable for mechanical spraying or manual construction, namely, the obtained object can be subject to mechanical spraying or manual construction. The external thermal insulation anti-crack leveling mortar of the invention has the advantages of low water absorption rate, low modular ratio, high caking property and stable performance; and the interface processing carried out on a polyurethane insulation coating can be omitted, and the quality problems that a polyurethane external thermal insulation system is easy to produce crazes and hollowing, and the like can be solved.

Description

High performance polyurethane external wall outer insulation cracking resistance leveling mortar and constructional method thereof
Technical field
The present invention relates to a kind of construction work mortar, especially high performance polyurethane external wall outer insulation cracking resistance leveling mortar and constructional method thereof.
Background technology
It is a novel building power-saving technology that the hard polyurethane foam spraying is used for external thermal insulation system.Compare with EPS, XPS foam thermal insulation system; because polyurethane heat insulation material is a kind of thermosetting material; in burning, be inertia; can not produce fused incendivity flame dropping; and only form a pyrogenic protective layer; it stops oxygen to enter wall insulating layer inside; can effectively suppress the danger that fusion causes propagation of flame; have excellent flame-retardant performance, in addition, it is low that polyurethane heat insulation material also has a thermal conductivity; good airproof performance; advantages such as agent structure distortion adaptive faculty is strong, and resistance to cleavage is excellent, and it is convenient to construct.But because the polyurethane foamed material dimensional stability is relatively poor, can produce contraction, cause the polyurethane external wall heat insulation system to produce common quality defects such as cracking, hollowing in violent temperature variation or when being in lesser temps for a long time.
Summary of the invention
In order to overcome above defective, the technical problem to be solved in the present invention is: propose a kind of low water absorption, low-elasticity-modulus, high bonding, the polyurethane external wall thermal-insulation system cracking resistance leveling mortar of stable performance, easy construction, can save the polyurethane insulation coating interface processing, solve the polyurethane external wall heat insulation system and easily produce quality problems such as cracking, hollowing.
The technical solution adopted in the present invention is: a kind of high-performance dual-component polyurethane external wall outer insulation cracking resistance leveling mortar, the first and second component ratios are 100: (4-10), the first component is a dry mash, and component B is an emulsion form hydrophober.
The first component is characterised in that: each component by following weight percent mixes:
Gelling material 60-80%;
Aggregate 20-30%;
Functional admixture 0-10%.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar first component comprises that further described gelling material is the mixture of cement, flyash, swelling agent, and the ratio of weight and number of cement, flyash, swelling agent is 80-85: 14-20: 5-8 in the described gelling material.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar first component comprises that further described aggregate is a glass bead, and unit weight is 110-130g/L, and particle diameter is one or both in 30-50 order or the 50-70 order.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar first component comprises that further described functional admixture comprises redispersable latex powder, fluidizer, defoamer, fiber, thickening material, and weight proportion separately is: the redispersable latex powder adding proportion is that 3-8%, fluidizer adding proportion are that 0.15-0.75%, defoamer adding proportion are that 0-0.8%, fiber adding proportion are that 0.2-0.4%, thickening material adding proportion are 0.3-0.7%.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar component B comprises that further described hydrophober is epoxy modified asphalt.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar first component comprises that further described redispersable latex powder is one or more in re-dispersible latex powder of acrylic acid or the vinyl acetate between to for plastic redispersable latex powder.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar first component comprises that further described fluidizer is a kind of in poly carboxylic acid series water reducer, naphthalene water reducer or the sweet ammonia based water reducer.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar first component comprises that further described defoamer is one or more in polyethers defoamer or the silicone based defoamer.
According to another preferred embodiment, high performance polyurethane external wall outer insulation cracking resistance leveling mortar first component comprises that further described thickening material is one or more in ether of cellulose, starch ethers or the modified alta-mud.
The invention also discloses a kind of constructional method of high performance polyurethane external wall outer insulation cracking resistance leveling mortar, high performance polyurethane external wall outer insulation cracking resistance leveling mortar with first and second components to scale, adding suitable quantity of water stirs, reach the denseness that is fit to mechanically spraying or manual construction, can mechanically spraying or manual construction.
The invention has the beneficial effects as follows:
1, glass bead is a kind of novel environment friendly inorganic light weight thermal insulation material, except that having light weight, insulation, thermal insulation, fp excellent properties, also has the cylindrical compress strength height, and water-intake rate is low, advantages such as long service life, moderate cost.The present invention can effectively reduce the interior of building energy loss owing to adopt glass bead as aglite, improves and comfortable for living, can also reduce polyurethane external wall heat insulation systems engineering cost simultaneously.
2, high performance polyurethane external wall outer insulation cracking resistance leveling mortar use range of the present invention is wide, not only is suitable for cold, the hot summer and warm winter region of Xia Redong, and also applicable severe cold, cold district can increase substantially the energy-conservation level of domestic construction thing.The present invention's system easy to control the quality, construction are convenient to large-scale promotion application easily, save the polyurethane insulation coating interface processing, solve the polyurethane external wall heat insulation system and easily produce common quality defects such as cracking, hollowing.This material also is applicable to water-proof leveling engineerings such as body of wall, roofing simultaneously.
Embodiment
The present invention is further detailed explanation in conjunction with the preferred embodiments now.
The present invention has disclosed a kind of low water absorption, low-elasticity-modulus, high bonding, the polyurethane external wall thermal-insulation system cracking resistance leveling mortar of stable performance, easy construction can be saved the polyurethane insulation coating interface processing, solves the polyurethane external wall heat insulation system and easily produces common quality defects such as cracking, hollowing.
The first component is mixed by following components in weight percentage:
Gelling material 60-80%;
Aggregate 20-30%
Functional admixture 0-10%.
Carry out proportioning according to different functional demands.
Wherein gelling material is the mixture of cement, flyash, swelling agent, and the ratio of weight and number of cement, flyash, swelling agent is in the described gelling material: 80-85: 14-20: 5-8.
Cement adopts in ordinary Portland cement or the silicate cement
Swelling agent is a low alkalinity UEA swelling agent.
Aggregate is a glass bead, and the employing particle diameter is one or both in 30-50 order or the 50-70 order, and unit weight is 110-130g/L.
Functional admixture comprises redispersable latex powder, fluidizer, defoamer, fiber, thickening material, and weight proportion separately is: the redispersable latex powder adding proportion is that 3-8%, fluidizer adding proportion are that 0.15-0.75%, defoamer adding proportion are that 0-0.8%, fiber adding proportion are that 0.2-0.4%, thickening material adding proportion are 0.3-0.7%.
Wherein redispersable latex powder is one or more in re-dispersible latex powder of acrylic acid or the vinyl acetate between to for plastic redispersable latex powder; Fluidizer is one or more in poly carboxylic acid series water reducer, naphthalene water reducer or the sweet ammonia based water reducer; Defoamer is one or more in polyethers defoamer or the silicone based defoamer; Fiber is a polypropylene fibre; Thickening material is one or more in ether of cellulose, starch ethers or the modified alta-mud.
Component B emulsion form hydrophober is epoxy modified asphalt.
During construction, high performance polyurethane external wall outer insulation cracking resistance leveling mortar adds suitable quantity of water and stirs with first and second components to scale, reaches the denseness that is fit to mechanically spraying or manual construction, can mechanically spraying or manual construction.
Embodiment 1
This high performance polyurethane external wall outer insulation cracking resistance leveling mortar; the first and second component ratios are 100: 4; each amount of substance that the first component is comprised is: silicate cement 50kg, flyash 11kg, swelling agent 4kg, particle diameter are that 30-50 order and unit weight are glass bead 25kg, re-dispersible latex powder of acrylic acid 6kg, poly carboxylic acid series water reducer 0.14kg, polypropylene fibre 0.27kg, polyethers defoamer 0.03kg, ether of cellulose 0.3kg, the starch ethers 0.05kg of 110-130g/L, and the second component is epoxy modified asphalt 3.87kg.
Embodiment 2
This high performance polyurethane external wall outer insulation cracking resistance leveling mortar; the first and second component ratios are 100: 9; each amount of substance that the first component is comprised is: silicate cement 65kg, flyash 10kg, swelling agent 5kg, particle diameter are that 50-70 order and unit weight are glass bead 20kg, re-dispersible latex powder of acrylic acid 4kg, poly carboxylic acid series water reducer 0.12kg, polyethers defoamer 0.03kg, polypropylene fibre 0.25kg, ether of cellulose 0.2kg, the modified alta-mud 0.4kg of 110-130g/L, and the second component is epoxy modified asphalt 9.45kg.
Embodiment 3
This high performance polyurethane external wall outer insulation cracking resistance leveling mortar; the first and second component ratios are 100: 6; each amount of substance that the first component is comprised is: ordinary Portland cement 55kg; flyash 10kg; swelling agent 6kg; particle diameter is that 30-50 order and unit weight are the glass bead 20kg of 110-130g/L; particle diameter is that 50-70 order and unit weight are the glass bead 9kg of 110-130g/L; vinyl acetate between to for plastic redispersable latex powder 3kg; honey ammonia based water reducer 0.5kg; polyethers defoamer 0.05kg; polypropylene fibre 0.3kg; ether of cellulose 0.3kg; starch ethers 0.05kg; modified alta-mud 0.35kg, the second component is epoxy modified asphalt 6.27kg.
High performance polyurethane external wall outer insulation cracking resistance leveling mortar of the present invention adopts machinery to add water at the construction field (site) to scale and stirs and can use.Advantages such as it is reliable to have steady quality, and construction is simple easy.
High performance polyurethane external wall outer insulation cracking resistance leveling mortar of the present invention, the construction effect is fast, and cohesive strength is good, and quality is more firm.
High performance polyurethane external wall outer insulation cracking resistance leveling mortar of the present invention except that being used for polyurethane thermal insulation system, also can directly being executed and smear places such as the outside, roof in exterior wall, thereby improves thermal and insulating performance.
High performance polyurethane external wall outer insulation cracking resistance leveling mortar of the present invention, the scope that is applicable to is wide, is applicable to that Xia Redong is cold, hot summer and warm winter zone ground, severe cold, cold district, and save energy loss significantly can also improve the comfort level of inhabitation.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, must determine its technical scope according to the claim scope.

Claims (11)

1. high-performance dual-component polyurethane external wall outer insulation cracking resistance leveling mortar, the first and second component ratios are 100: (4-10), the first component is a dry mash, and component B is an emulsion form hydrophober.
2. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 1, it is characterized in that: the first component is mixed by each component of following weight percent:
Gelling material 60-80%;
Aggregate 20-30%;
Functional admixture 0-10%.
3. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 2, it is characterized in that: described gelling material is the mixture of cement, flyash, swelling agent, and the ratio of weight and number of cement, flyash, swelling agent is 80-85: 14-20: 5-8 in the described gelling material.
4. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 2, it is characterized in that: described aggregate is a glass bead, and unit weight is 110-130g/L, and particle diameter is one or both in 30-50 order or the 50-70 order.
5. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 2, it is characterized in that described functional admixture comprises redispersable latex powder, fluidizer, defoamer, fiber, thickening material, weight proportion separately is: the redispersable latex powder adding proportion is that 3-8%, fluidizer adding proportion are that 0.15-0.75%, defoamer adding proportion are that 0.0-0.8%, fiber adding proportion are that 0.2-0.4%, thickening material adding proportion are 0.3-0.7%.
6. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 1 is characterized in that described component B emulsion form hydrophober is epoxy modified asphalt.
7. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 5 is characterized in that described redispersable latex powder is one or more in re-dispersible latex powder of acrylic acid or the vinyl acetate between to for plastic redispersable latex powder.
8. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 5 is characterized in that described fluidizer is one or more in poly carboxylic acid series water reducer, naphthalene water reducer or the sweet ammonia based water reducer.
9. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 5 is characterized in that described defoamer is one or more in polyethers defoamer or the silicone based defoamer.
10. high performance polyurethane external wall outer insulation cracking resistance leveling mortar according to claim 5 is characterized in that described thickening material is one or more in ether of cellulose, starch ethers or the modified alta-mud.
11. the constructional method of a high performance polyurethane external wall outer insulation cracking resistance leveling mortar, it is characterized in that described high performance polyurethane external wall outer insulation cracking resistance leveling mortar to scale with first and second components, adding suitable quantity of water stirs, reach the denseness that is fit to mechanically spraying or manual construction, can mechanically spraying or manual construction.
CN 201010294133 2010-09-27 2010-09-27 High-performance polyurethane external thermal insulation anti-crack leveling mortar and construction method thereof Pending CN101993226A (en)

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102690087A (en) * 2012-05-21 2012-09-26 张立功 Preparation method of wear-resistant ground mortar and wear-resistant ground mortar and construction method thereof
CN102718447A (en) * 2012-04-11 2012-10-10 陈明中 High-performance reinforced mortar suitable for thick-layer spraying and preparation method thereof
CN103553510A (en) * 2013-10-23 2014-02-05 拉法基技术服务(北京)有限公司 Mortar material
CN104261766A (en) * 2014-09-29 2015-01-07 句容金猴机械研究所有限公司 High-toughness mould pressing tile and preparation method thereof
CN104291756A (en) * 2014-09-29 2015-01-21 句容金猴机械研究所有限公司 High-strength thermal insulation mould pressing tile and manufacturing method thereof
CN106396597A (en) * 2016-08-30 2017-02-15 卓达新材料科技集团威海股份有限公司 Alkali excited fly ash repairing mortar and production method thereof
CN107827408A (en) * 2017-11-01 2018-03-23 安徽铭能保温科技有限公司 A kind of preparation method of the anti-cracking heat insulation mortar of modified fibre modified pitch doping
CN107954655A (en) * 2017-11-01 2018-04-24 安徽铭能保温科技有限公司 A kind of preparation method of expanded and vitrified small ball-fibre-reinforced composite insulation boards
CN108503306A (en) * 2018-04-20 2018-09-07 常州达奥新材料科技有限公司 A kind of preparation method of lower shrinkage grouting material
CN112321201A (en) * 2020-11-25 2021-02-05 宁波东兴沥青制品有限公司 High-density asphalt concrete and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101058493A (en) * 2006-04-23 2007-10-24 柳州欧维姆机械股份有限公司 CA mortar for plate-type slag-free orbit and preparation method thereof
CN101250910A (en) * 2008-03-27 2008-08-27 江苏尼高科技有限公司 Spray coating rigid foam polyurethane water-proof fireproof heat-preserving wall as well as construction method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101058493A (en) * 2006-04-23 2007-10-24 柳州欧维姆机械股份有限公司 CA mortar for plate-type slag-free orbit and preparation method thereof
CN101250910A (en) * 2008-03-27 2008-08-27 江苏尼高科技有限公司 Spray coating rigid foam polyurethane water-proof fireproof heat-preserving wall as well as construction method thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102718447B (en) * 2012-04-11 2015-01-14 陈明中 High-performance reinforced mortar suitable for thick-layer spraying and preparation method thereof
CN102718447A (en) * 2012-04-11 2012-10-10 陈明中 High-performance reinforced mortar suitable for thick-layer spraying and preparation method thereof
CN102690087A (en) * 2012-05-21 2012-09-26 张立功 Preparation method of wear-resistant ground mortar and wear-resistant ground mortar and construction method thereof
CN103553510A (en) * 2013-10-23 2014-02-05 拉法基技术服务(北京)有限公司 Mortar material
CN103553510B (en) * 2013-10-23 2015-10-28 拉法基技术服务(北京)有限公司 A kind of mortar material
CN104291756A (en) * 2014-09-29 2015-01-21 句容金猴机械研究所有限公司 High-strength thermal insulation mould pressing tile and manufacturing method thereof
CN104261766A (en) * 2014-09-29 2015-01-07 句容金猴机械研究所有限公司 High-toughness mould pressing tile and preparation method thereof
CN106396597A (en) * 2016-08-30 2017-02-15 卓达新材料科技集团威海股份有限公司 Alkali excited fly ash repairing mortar and production method thereof
CN107827408A (en) * 2017-11-01 2018-03-23 安徽铭能保温科技有限公司 A kind of preparation method of the anti-cracking heat insulation mortar of modified fibre modified pitch doping
CN107954655A (en) * 2017-11-01 2018-04-24 安徽铭能保温科技有限公司 A kind of preparation method of expanded and vitrified small ball-fibre-reinforced composite insulation boards
CN108503306A (en) * 2018-04-20 2018-09-07 常州达奥新材料科技有限公司 A kind of preparation method of lower shrinkage grouting material
CN112321201A (en) * 2020-11-25 2021-02-05 宁波东兴沥青制品有限公司 High-density asphalt concrete and preparation method thereof
CN112321201B (en) * 2020-11-25 2021-08-20 宁波东兴沥青制品有限公司 High-density asphalt concrete and preparation method thereof

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