Hydrophobic maintenance seal coat material for roads and preparation method of seal coat material

Abstract

The invention discloses a hydrophobic maintenance seal coat material for roads and a preparation method of the seal coat material. The hydrophobic maintenance seal coat material for the roads is prepared from the following components in parts by weight: 100 parts of cementing materials, 12-20 parts of a hydrophobic additive, 5-12 parts of a nano modified stain resistant agent, 2-6 parts of a surface modifier, 1-3 parts of an activator, 2-4 parts of a wetting agent, 16-24 parts of light hydrophobic aggregate, 6-10 parts of filling materials, 4-8 parts of a diluent, 2-6 parts of a leveling agent, 7-11 parts of silica gel powder, 1-2 parts of a defoaming agent and 2-5 parts of a stabilizer. The material has good hydrophobicity and water seal performance, can isolate external water outside therange of the road surface by excellent hydrophobicity, inhibits external water from penetrating into the interior of the road surface layer, effectively solves the problem of water damage to the roads, improves durability of the roads, and has good effect of improving performance of the road surface.

Description

technical field [0001] The invention belongs to the technical field of road maintenance materials, and in particular relates to a road-use hydrophobic maintenance sealing layer material and a preparation method thereof. Background technique [0002] my country's expressway construction started late, road traffic channels are obvious, overloading is serious, high-quality road asphalt materials and other raw materials are lacking, and some road sections have been damaged to varying degrees, 80% of which are caused by water damage. Since parts of southern my country have a rainy climate, while parts of the north face freezing winters, the degree and situation of water damage to expressways in different regions are not the same. Water damage usually occurs in the first rainy season after the road is opened, or when it encounters high temperature for the first time, water enters the interior of the asphalt concrete through cracks, joints and gaps in the road surface, and high wat...

AI Technical Summary

Problems solved by technology

However, although a series of maintenance measures such as micro-surfacing, overlay, milling and re-paving can alleviate the adverse effects of water damage on asphalt pavement, under the repeated action of traffic load, asphalt pavement will still have serious diseases. In particular, some road sections are affected by water, resulting in large-area pumping, cracks and other diseases, which seriously affect driving comfort and traffic safety.

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