Concrete base interface agent for preventing plastering gypsum mortar layer from bubbling and preparation method of concrete base interface agent

Abstract

The invention provides a concrete base interface agent for preventing a plastering gypsum mortar layer from foaming. The concrete base interface agent comprises the following raw materials in parts by weight: 5-60 parts of high-molecular polymerization emulsion; 1 to 15 parts of nanometer alkali-resistant bottom sealing emulsion; 0.5 to 10 parts of protective colloid; 0.01 to 1 part of an antiseptic bactericide; 0.1 to 5 parts of a coalescing agent; 0.1 to 5 parts of a thickening agent; 0.1 to 2 parts of a pH regulator; 0.1-1 part of a dispersant; 0.1-3 parts of a freeze thawing stabilizer; 0.1-3 parts of a wetting agent; 0.1 to 1 part of a defoaming agent; 0.1-1 part of a coloring agent; and 40 to 85 parts of deionized water. The thickening agent for improving the medium / low shear viscosity and the thickening agent for improving the high shear viscosity are compounded, so that the base-layer interface agent coating has excellent anti-sagging performance and anti-splashing performance, and still has good construction performance after being diluted with water. The invention further provides a preparation method of the concrete base interface agent for preventing the plastering gypsum mortar layer from bubbling.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a concrete base layer interface agent for preventing foaming of a plastered gypsum mortar layer and a preparation method thereof. Background technique [0002] The surface of the concrete shear wall looks dense and smooth, but there are a large number of micro-scale and nano-scale capillary pores in the actual microscopic internal structure. , the capillary pores absorb the moisture in the mortar layer, and at the same time displace the air in the capillary pores, resulting in a large amount of foaming in the plastered gypsum mortar layer. In order to obtain a smooth wall surface, plasterers on the construction site need to wait until the mortar layer has solidified before performing secondary rework, which seriously affects the construction efficiency and construction period. Therefore, the concrete base interface agent is needed to effectively block the ...

AI Technical Summary

Problems solved by technology

[0004] In the process of engineering construction, the interface agent is required to have good leveling properties, and at the same time have high anti-sag and anti-splash properties, so that the interface agent coating has high construction performance; especially when the interface agent is diluted with water After that, due to the change of consistency, the construction performance of the interface agent is greatly reduced

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