Waterproof adhesive mortar for external thermal insulation of external wall

A technology for external wall thermal insulation and bonding mortar, which is applied in the field of building material mortar to achieve the effects of good bonding strength, safe and hygienic construction, and outstanding waterproof performance.

Active Publication Date: 2013-01-16
SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor water resistance of the above adhesive mortar for external wall insulation, the present invention provides a mortar with higher bonding strength and stronger water resistance Water-resistant adhesive mortar for external insulation of external walls

Method used

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  • Waterproof adhesive mortar for external thermal insulation of external wall
  • Waterproof adhesive mortar for external thermal insulation of external wall
  • Waterproof adhesive mortar for external thermal insulation of external wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A water-resistant adhesive mortar for exterior wall insulation, which is obtained by mixing raw materials with the following weight ratios:

[0032] 20 parts of grade 42.5 high alumina cement, 10 parts of grade 42.5 portland cement, 65 parts of 70-100 mesh washed river sand, 2 parts of heavy calcium, 2.5 parts of redispersible latex powder, 0.2 parts of methyl cellulose ether, and Disperse 0.3 part of silyl water repellent. The viscosity of a 2% aqueous solution of methyl cellulose ether at 20°C is 75,000 mPa·s.

[0033] When using, mix the water-resistant adhesive mortar for external thermal insulation with water at a mass ratio of 100:20, add water first, and then add the evenly mixed water-resistant adhesive mortar for external thermal insulation with an electric mixer while stirring, and stir thoroughly 5 After 5 minutes, let the slurry stand for 5 minutes, and then it can be used after stirring again.

[0034] According to the performance testing method in the "Expanded...

Embodiment 2

[0038] A water-resistant adhesive mortar for exterior wall insulation, which is made by mixing raw materials with the following weight ratios:

[0039] 20 parts of 52.5 grade high alumina cement, 15 parts of 42.5 grade Portland cement, 60 parts of 70-100 mesh washed river sand, 2.8 parts of heavy calcium, 2 parts of redispersible latex powder, 0.1 part of hydroxyethyl cellulose ether and The water repellent is composed of 0.1 parts by mass. The viscosity of a 2% aqueous solution of hydroxyethyl cellulose ether at 20°C is 200,000 mPa·s.

[0040] Place the above-mentioned raw materials in a mixer for pre-mixing, and the mixing time is not less than 2 minutes to facilitate uniform mixing. When in use, mix the water-resistant adhesive mortar for exterior wall insulation with water at a mass ratio of 100:20. Add water first, and then use an electric mixer while stirring to add a uniformly mixed water-resistant adhesive mortar for exterior wall insulation. After stirring for 5 minutes,...

Embodiment 3

[0045] A water-resistant adhesive mortar for external thermal insulation of external walls, which is made by mixing raw materials with the following weight ratios:

[0046] 42.5 grade high alumina cement 25 parts, 42.5 grade portland cement 10 parts, 70-100 mesh quartz sand 55 parts, heavy calcium 8 parts, redispersible latex powder 1.5 parts, methyl cellulose ether 0.3 parts and re It consists of 0.2 parts of dispersed silyl water repellent. The viscosity of a 2% aqueous solution of methyl cellulose ether at 20°C is 100,000 mPa·s.

[0047] Before use, put the above-mentioned raw materials in a mixer for pre-mixing, and the mixing time is not less than 2 minutes to facilitate uniform mixing. When in use, mix the water-resistant adhesive mortar for external thermal insulation with water at a mass ratio of 100:20, add water first, and then use an electric mixer while stirring to add the evenly mixed water-resistant adhesive mortar for external thermal insulation, and stir thoroughly...

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Abstract

The invention relates to the technical field of building material mortar technologies, in particular to waterproof adhesive mortar for external thermal insulation of an external wall. The waterproof adhesive mortar is prepared from the following raw materials in part by weight: 20 to 25 parts of high-alumina cement, 10 to 20 parts of Portland cement, 50 to 65 parts of sand, 2 to 8 parts of coarse whiting, 1 to 2.5 parts of re-dispersible emulsion powder, 0.1 to 0.3 part of cellulose ethers thickening agent, and 0.1 to 0.3 part of moisture repellent, wherein the Portland cement is 42.5-grade Portland cement, and the waterproof intensity of the adhesive mortar is not lower than that of the conventional adhesive mortar or is reduced slightly; the adhesive mortar is high in adhesive property and suitable for various external thermal insulation systems, and excellent in capacity of adhering cement concrete base-level wall surfaces, and thermal insulation materials such as phenolic foam, polyphenyl, extruded sheets and the like.

Description

technical field [0001] The invention relates to the technical field of building material mortar, in particular to a water-resistant adhesive mortar for external wall insulation. Background technique [0002] External wall insulation system is currently the most widely used energy-saving technical measure in my country's building wall energy-saving. It is being popularized across the country and has made a huge contribution to building energy conservation. However, the bonding mortar for external wall thermal insulation currently sold on the market generally has poor water resistance, that is, the tensile bond strength of the mortar with the wall or insulation board after soaking in water is significantly lower than the original strength. Guaranteeing the quality and safety of building external wall insulation engineering has had a huge negative impact. Thereby, there is an urgent need in the market for a new bonding mortar with higher bonding strength and good water resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
Inventor 江成真李枝芳乔林廉明德
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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