Polymer reinforced aerated concrete light-brick adhesives and preparation method thereof

A kind of air-entrained concrete and polymer technology, which is applied in the field of building materials, can solve the problems of bonding performance defects, large shrinkage rate and water absorption rate, and voids in the masonry layer at the interface between the substrate and the mortar, and achieve light dry density and fire resistance High grade, the effect of reducing the amount of cement

Inactive Publication Date: 2008-07-30
YANGZHOU RONGJIA BUILDING MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although aerated concrete lightweight bricks have the characteristics of light weight, heat preservation, sound insulation, and energy saving, due to the shrinkage rate and water absorption rate of this type of material are larger than traditional materials, when using ordinary

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] 1. Example of adhesive preparation operation:

[0013] First mix cement, fly ash, methyl cellulose ether, redispersible polymer latex powder and water reducer uniformly at a mass ratio of 300-310:90-95:2:20:2-3, then add 600 parts of dry sand are evenly mixed to make polymer reinforced aerated concrete lightweight brick adhesive.

[0014] 2. Application:

[0015] The prepared adhesive should not be used for more than 2 hours.

[0016] When used for horizontal bonding, it should be laid along with the laying, the mortar filling rate should not be less than 90%, and the thickness of the mortar joint should be 10mm to 13mm.

[0017] When used for vertical mortar joints, use internal and external temporary splints to fill the joints, and the joint width is 15mm to 18mm.

[0018] 3. Effect:

[0019] 1. Engineering application of dry powder adhesives.

[0020] 2. The supporting use of new wall materials can avoid various adverse effects caused by the high water absorptio...

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PUM

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Abstract

The invention relates to an adhesive of polymer reinforced aerated concrete light brick and a method for preparing thereof, which relates to a technical field of construction materials. The adhesive consists essentially of cement, fly ash, dry sand, water retaining agent, re-dispersible polymer emulsion powder and water reducing agent. Weight ratio of the cement, fly ash, dry sand, water retaining agent, re-dispersible polymer emulsion powder and water reducing agent is 300 to 310: 90 to 95: 600: 2: 20: 2 to 3. The invention is characterized by light dry density, low thermal conductivity, good weathering resistance stability and high fire resistance rating. When the adhesive is smeared on external wall of reinforced concrete, concrete hollow block and multihole clay brick, phenomena such as voiding, cracking, hollow protuberance, etc. do not occur, which avoids leakage, wind penetration and spalling of the wall and can reduce the cement consumption.

Description

technical field [0001] The invention relates to the technical field of building materials. Background technique [0002] With the increasing development of energy-saving buildings, aerated concrete lightweight bricks are produced with fly ash as the main raw material. Although aerated concrete lightweight bricks have the characteristics of light weight, heat preservation, sound insulation, and energy saving, due to the shrinkage rate and water absorption rate of this type of material are larger than traditional materials, when using ordinary masonry mortar and plastering mortar, the base material There are certain defects in the bonding performance of the bonded interface with the mortar, which makes the masonry layer prone to voids and cracks after construction, and the plastering is prone to hollowing and other phenomena. Contents of the invention [0003] The purpose of the present invention is to invent a polymer-reinforced aerated concrete lightweight brick adhesive ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/08C04B14/06C04B24/24C04B24/38
CPCC04B2111/00672C04B2111/28C04B28/02Y02W30/91C04B14/06C04B18/08C04B24/26C04B2103/302C04B2103/46
Inventor 朱广军卢晨张广凤孙国勇
Owner YANGZHOU RONGJIA BUILDING MATERIAL TECH
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