Anti-adhesive weather-resistant coatings, bonding coats for bonding waterstops to concrete, composite waterproofing systems

Abstract

The invention discloses anti-sticking and weather-resisting paint, a sticking layer for sticking a water-stopping belt and concrete and a compound waterproof system. The paint is prepared from the following formula raw materials: heavy calcium carbonate, talcum powder, titanium dioxide and waterborne emulsion; and the waterborne emulsion contains a functional group which can be subjected to coordinated complexation with an alkaline group in the concrete. According to an anti-sticking and weather-resisting coating formed by the anti-sticking and weather-resisting paint, the functional group, which can be subjected to coordinated complexation with the alkaline group in the concrete, in the waterborne emulsion is subjected to the coordinated complexation with the concrete, so that chemical bond compounding is formed by the anti-sticking and weather-resisting coating and the concrete, and the adhesion force between the anti-sticking and weather-resisting coating and the concrete is enhanced. The anti-sticking coating is arranged on a pressure-sensitive adhesive layer and forms an adhering layer, and the adhering layer forms a wholly continuous and microscopic three-dimensional porous structure; and in a process of curing the post-poured concrete and the adhering layer, slurry formed by the post-poured concrete and the microscopic three-dimensional porous structure in the adhering layer form mechanical occlusion, so that the adhering layer and the concrete are tightly attached and adhered and do not easily fall off.

Description

technical field [0001] The invention belongs to the technical field of waterproofing, and in particular relates to an anti-adhesive weather-resistant coating, an adhesive layer for bonding a waterstop and concrete, and a composite waterproofing system. Background technique [0002] The back-adhesive waterstop is mostly made of homogeneous polymer materials. As an auxiliary waterproof material, it forms a three-dimensional composite waterproof system at the gap of the structure together with the main waterproof membrane. The tight interfacial bond between the waterstop and the post-cast concrete cannot be achieved. Although the diffusion radius of water is increased to a certain extent, it cannot solve the problem of environmental water channeling along the interfacial gap. [0003] By attaching an adhesive layer to the surface of the waterstop, the waterstop is closely combined with the structural concrete itself to avoid water channeling due to poor interface bonding. Howev...

AI Technical Summary

Problems solved by technology

The tight interface between the waterstop and the post-cast concrete cannot be achieved. Although the diffusion radius of water is increased to a certain extent, it cannot solve the problem of environmental water channeling along the interface gap

[0003] By attaching an adhesive layer on the surface of the waterstop, the waterstop is closely combined with the structural concrete itself to avoid water channeling due to poor interface bonding. However, the adhesive layer cannot be attached to the sheet alone as a functional layer.

Under the external environment (ultraviolet rays, dust, pollution and other factors), it will cause aging, reduce the weather resistance, and reduce the bonding performance. The type of adhesive layer, bonding effect, and weather resistance cannot determine the realization of its functionality.

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