CN102295440A - Flexible mortar for anti-crack protective coating of rock wool plate outer wall external insulation system - Google Patents
Flexible mortar for anti-crack protective coating of rock wool plate outer wall external insulation system Download PDFInfo
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- CN102295440A CN102295440A CN2011101206027A CN201110120602A CN102295440A CN 102295440 A CN102295440 A CN 102295440A CN 2011101206027 A CN2011101206027 A CN 2011101206027A CN 201110120602 A CN201110120602 A CN 201110120602A CN 102295440 A CN102295440 A CN 102295440A
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- flexible mortar
- insulation system
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- mortar
- protective coating
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Abstract
The invention discloses a flexible mortar for an anti-crack protective coating of a rock wool plate outer wall external insulation system. The flexible mortar has high stretching strength, high pressure-shear bonding strength, good flexibility, strong crack resistance, compact structure, low water absorption rate and water permeating resistance. If the flexible mortar is used in the rock wool plate outer wall external insulation system, an alkali resistant glass fiber mesh can be omitted, and a thickness of the anti-crack protective coating is thinned from regular 4-6 mm to 1.5-2.5 mm. The flexible mortar comprises cement, latex powder, grading medium and fine sand, silicon powder, sodium metasilicate, zinc fluosilicate and anti-crack fiber, etc. A formula of the flexible mortar comprises 20.0-35.0wt% of cement, 4.0-12.0wt% of latex powder, 40.0-65.0wt% of grading medium and fine sand, 2.0-4.5wt% of silicon powder, 1.0-3.5wt% of sodium metasilicate, 1.0-2.5wt% of zinc fluosilicate, and 0.7-1.5wt% of anti-crack fiber.
Description
Technical field:
Patent of the present invention belongs to a kind of supplementary material of External Thermal Insulation System, it specifically is a kind of flexible mortar that is used for rock cotton board external thermal insulation system cracking resistance protective layer, when this mortar is used as the cracking resistance protective layer in the rock cotton board external thermal insulation system, can make in the cracking resistance protective layer of rock cotton board external thermal insulation system does not need to re-use the alkali resistant glass fibre grid cloth, and can be 1.5mm～2.5mm by original 4mm～6mm attenuate with the thickness of cracking resistance protective layer.
Background technology:
In the structure of rock cotton board external thermal insulation system,, must use the alkali resistant glass fibre grid cloth in the cracking resistance protective layer of system if use general anticracking grout.The deadweight of the excessive increase of this meeting system, unfavorable to the safety of structure of system; And the alkali resistance of alkali resistant glass fibre grid cloth is limited, behind the strength loss, becomes sealing coat long-time use of external thermal insulation system in the cracking resistance protective layer, and is harmful on the contrary.Use the flexible mortar of patent of the present invention, can access better effect of prestressed, and these problems of basically eliminate.
The patent of invention content:
In order to overcome the problem that the cracking resistance overcoat thickness is excessive and use alkali resistant glass fibre grid cloth is brought in the rock cotton board external thermal insulation system structure, patent of the present invention provides a kind of flexible mortar, the tensile bond strength of this flexible mortar, pressure are cut mechanical property height such as cohesive strength, snappiness is good, and splitting resistance is strong; Compact structure, water-intake rate is low and can prevent the sealing infiltration.Thereby use this flexible mortar, and can either reduce the thickness of cracking resistance protective layer, can cancel the use of alkali resistant glass fibre grid cloth again.
Patent of the present invention solves its technical problem and adopts following technical scheme:
Compound by cement and redispersible polymer toner (latex powder) as consolidating material; With the silica flour is enhancing, density material; With Starso, zine fluosilicate is density, permeable crystalline waterproofing material; With fine sand in the grating is aggregate; As strongthener, these material mixing evenly are mixed with flexible mortar with anti-crack fiber.
The prescription of described flexible mortar is (quality %):
Cement 20.0～35.0; Latex powder 4.0～12.0; Fine sand 40.0～65.0 in the grating; Silica flour 2.0～4.5; Starso 1.0～3.5; Zine fluosilicate 1.0～2.5; Anti-crack fiber 0.7～1.5.
Described cement is that strength grade is 42.5 grades and above building industry general cement commonly used; Described latex powder is that second-order transition temperature is-5 ℃ and following VAE and modification VAE class latex powder; The sand of fine sand for common building is cooperated according to different-grain diameter after super-dry, screening with sand again in the described grating; Described zine fluosilicate and Starso are general industrial chemicals; Described anti-crack fiber chops up fiber for being used for cement concrete enhanced organic synthesis weak point; Described silica flour is for producing the superfine powder of collecting the flue dust of silicon steel and ferrosilicon from steel mill and ferroalloy works.
Various materials in the above formula materials are mixed in powder stirrer, promptly become flexible mortar.
The beneficial effect of patent of the present invention is: the low Tg redispersible polymer toner of high addition can improve tensile bond strength, the pressure of flexible mortar and cut physical and mechanical properties such as cohesive strength and snappiness; Fine sand can form close-packed in the grating, makes the compact structure of flexible mortar, volume stability; Silica flour can significantly improve the intensity and the impermeability of flexible mortar; Zine fluosilicate and Starso can make the cement of aquation form fine and close cement stone, and when dried flexible mortar ran into water again, zine fluosilicate wherein can also recrystallize and stop up fine pore in the flexible mortar, improves the impermeability of mortar.In a word, the proportioning of using patent of the present invention to provide can access that intensity was not only high, snappiness but also good flexible mortar.
Below in conjunction with embodiment patent of the present invention is described further.
Embodiment, non-limiting examples is as described below:
Embodiment
(1) flexible mortar prescription (quality %) is:
Cement 22.0～30.0; Latex powder 6.0～10.0; Fine sand 55.0～60.0 in the grating; Silica flour 3.0～4.0; Starso 1.5～3.0; Zine fluosilicate 1.5～2.0; Anti-crack fiber 0.9～1.3.
(2) preparation method is: after the various starting material in the above formula materials are accurately measured by prescription, mix in powder stirrer, promptly become flexible mortar.During construction, add water at the construction field (site) and stir into the mortar mixed material that is easy to construct.
Claims (1)
1. flexible mortar that is used for rock cotton board external thermal insulation system cracking resistance protective layer, the stretching of this flexible mortar and pressure are cut the cohesive strength height, and snappiness is good, and splitting resistance is strong; Compact structure, water-intake rate low and can be anti-the water infiltration, be used for the alkali resistant glass fibre grid cloth that the rock cotton board external thermal insulation system can be cancelled the cracking resistance protective layer, and be 1.5mm～2.5mm by common 4mm～6mm attenuate the thickness of cracking resistance protective layer.
The composition material of described flexible mortar has the laitance rubber powder, fine sand, silica flour and Starso, zine fluosilicate and anti-crack fiber etc. in the grating.
The prescription of described flexible mortar is (quality %):
Cement 20.0～35.0; Latex powder 4.0～12.0; Fine sand 40.0～65.0 in the grating; Silica flour 2.0～4.5; Starso 1.0～3.5; Zine fluosilicate 1.0～2.5; Anti-crack fiber 0.7～1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101206027A CN102295440A (en) | 2011-05-10 | 2011-05-10 | Flexible mortar for anti-crack protective coating of rock wool plate outer wall external insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101206027A CN102295440A (en) | 2011-05-10 | 2011-05-10 | Flexible mortar for anti-crack protective coating of rock wool plate outer wall external insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102295440A true CN102295440A (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101206027A Pending CN102295440A (en) | 2011-05-10 | 2011-05-10 | Flexible mortar for anti-crack protective coating of rock wool plate outer wall external insulation system |
Country Status (1)
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| CN (1) | CN102295440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496887A (en) * | 2013-09-13 | 2014-01-08 | 天津大学 | Epoxy resin zirconium tungstate concrete and preparation method thereof |
| CN103572932A (en) * | 2012-07-23 | 2014-02-12 | 宁波三力新材料有限公司 | Flexible wall pasting wood veneer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428992A (en) * | 2008-12-03 | 2009-05-13 | 上海华力化工产品有限公司 | Dry powder mortar packaged in grouping manner |
-
2011
- 2011-05-10 CN CN2011101206027A patent/CN102295440A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428992A (en) * | 2008-12-03 | 2009-05-13 | 上海华力化工产品有限公司 | Dry powder mortar packaged in grouping manner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572932A (en) * | 2012-07-23 | 2014-02-12 | 宁波三力新材料有限公司 | Flexible wall pasting wood veneer |
| CN103496887A (en) * | 2013-09-13 | 2014-01-08 | 天津大学 | Epoxy resin zirconium tungstate concrete and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20111228 |