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Interface mortar

A technology of interface mortar and inorganic adhesive, which is applied in the field of interface mortar, can solve the problems of easy aging and small modulus of organic adhesives, and achieve the effect of high bonding strength, small modulus and good weather resistance

Inactive Publication Date: 2008-09-24
长沙归一新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome defects such as large shrinkage and easy aging of organic adhesives when the existing cement interface mortar is solidified, and provide a kind of adhesive with high bonding strength, good water resistance, small modulus, good weather resistance, no aging, and no shrinkage when hardened. Interface mortar with good toughness and no interfacial stress

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with embodiment.

[0019] (1) Example of Optimizing the Weight Ratio of Inorganic Adhesive and Aggregate

[0020] The weight ratio of raw materials dihydrate gypsum, fluorine gypsum, water-quenched slag powder, cement, MC, redispersible rubber powder and sand is:

[0021] Dihydrate gypsum: fluorine gypsum: water-quenched slag powder: cement: MC: redispersible rubber powder: sand

[0022] 1 # =128:128:108:36:3.5:10:600

[0023] 2 # =144:144:121.5:40.5:3.5:10:550

[0024] 3 # =160:160:135:45:3.5:10:500

[0025] Among them, 3 # The dihydrate gypsum is replaced with desulfurized gypsum, and the fluorine gypsum is replaced with anhydrite.

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Abstract

The present invention discloses interface sand pulp, the constitutional materials of which comprises inorganic cementing compound, organic cementing compound tylose ether MC and hydrophobe redispersionable rubber powder, skeletal material and solidification setting accelerator; the ingredients with the following weight percent: 40 to 50 percent of inorganic cementing compound, 0.05 to 1.0 percent of tylose ether MC, 1.0 to 2.5 percent of hydrophobe redispersionable rubber powder, 48 to 60 percent of skeletal material, and 0 to 6 percent of solidification setting accelerator. The interface sand pulp of the present invention has strong adhesive strength, good water-resistant performance, small modulus and good climate-resistant performance, and is free from aging and is free from shrinking during the hardening, and has good flexibility, and is free from producing the interface stress. The interface sand pulp is particularly suitable to be used as the processing agent for the surface of the aeroconcrete and the smooth concrete, and is also applicable to be used as the transitional layer between the substrate and the coating layer, and can also be used for bonding the ceramic tile.

Description

technical field [0001] The invention relates to a high-strength, water-resistant and non-shrinking interface mortar for building materials. Specifically, it is a kind of interface mortar that can firmly bond the base layer, and its surface can be firmly bonded by a new adhesive. It can be used for interior walls and exterior walls. Interface treatment agent for walls and roofs. Background technique [0002] The stucco gypsum has the characteristics of firm bonding with the substrate, no shrinkage when hardened, convenient construction, and high cost performance, and has been widely used. However, the existing plaster plaster has low strength and poor water resistance, especially when exposed to water or damp, it is easy to absorb water and swell, and will shrink when dry, so that the plaster plaster and the bonded base are subjected to repeated shear stress, often resulting in interface delamination. Plaster plaster falls off, so traditional plaster plaster cannot be used a...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/38C04B14/06C04B22/14
Inventor 石宗利刘文伟朱桂华
Owner 长沙归一新材料科技股份有限公司
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