Permeable rubber asphalt waterproof coating and preparation method thereof

Abstract

The invention provides a permeable rubber asphalt waterproof coating and a preparation method thereof. The waterproof coating is composed of the following components in parts by mass: 10-30 parts of chloroprene rubber, 50-70 parts of anionic emulsified asphalt, 20-30 parts of styrene-acrylic emulsion, 10-20 parts of a modification additive, 3-10 parts of a thickening agent, 5-20 parts of terpene tackifying resin and 1-5 parts of cement-based permeable crystallization masterbatches. The preparation method comprises the steps of adding the chloroprene rubber into anionic emulsified asphalt emulsion at normal temperature, conducting full stirring for 20-40 minutes, and then adding the modification additive while stirring for 15-30 minutes; then adding the styrene-acrylic emulsion, conductingfull stirring for 20-30 minutes, and then adding the thickening agent while stirring for 20-30 minutes; adding the cement-based permeable crystallization masterbatches while stirring for 15-25 minutes; and finally adding the terpene tackifying resin and the thickening agent and conducting full stirring for 20-30 minutes. The coating has excellent waterproof property, high elongation rate, high bonding strength, good film forming property, strong self-repairing capability and puncture resistance.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a waterproof coating. Background technique [0002] According to the statistics of China Building Waterproof Association, 80% of buildings have leakage. In order to solve the problem of water stringing in SBS waterproof membranes, a non-curing rubber asphalt waterproof coating composite waterproof system was introduced a few years ago, but the system has a curing phenomenon during use; spraying quick-setting is prone to bubbles when used at high temperatures in summer, and cannot be used at low temperatures in winter. construction. The reason is that the first is the quality defect of the waterproof material itself. The existing waterproof coating has low elongation, low bond strength, poor film-forming property, poor self-repair ability, low tensile force, and is difficult to penetrate into the capillary pores of sealed concrete; Secondary damage caused by finishe...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a permeable rubber asphalt waterproof coating and a preparation method thereof, which can solve the problems of low elongation, low bonding strength, poor film-forming property, poor self-repair ability, small pulling force and difficulty in penetrating into capillary pores of sealed concrete in existing waterproof coatings. medium problem