Reactive permeable tack coat material special for water permeable pavement

Abstract

The invention discloses a reactive permeable tack coat material special for water permeable pavement. The reactive permeable tack coat material is composed of a component A and a component B, whereinthe component A comprises the following components in parts by weight: 30-50 parts of end-NCO group-terminated polyurethane prepolymer, 40-50 parts of penetrating fluid, 5-10 parts of SBS, 2-5 parts of petroleum resin, 3-8 parts of natural rosin resin, 0-1 part of flame retardant and 1-3 parts of diluent; the component B comprises the following components in parts by weight: 100 parts of a polyolcuring agent and 1-3 parts of a catalyst. The tack coat material provided by the invention is a reactive permeable tack coat material specially applied to permeable pavement, which greatly improves adhesion and durability, in particular, the tack coat material has good permeability for the permeable pavement with macropores, does not block pores, has small system viscosity, and strong adhesion, and is simple in preparation process, economic and durable.

Description

technical field [0001] The invention belongs to the field of road engineering, and in particular relates to a sticky layer material used for permeable road surfaces and a preparation method thereof. Background technique [0002] When paving asphalt concrete pavement and cement concrete pavement, the bonding material is usually sprinkled between the concrete layers as a functional layer. The adhesive material has strong cohesiveness and shear strength, which ensures that the pavement layer and the layer form a whole, and prevents diseases such as shifting and wrapping of the pavement. The material used in this layer is also called the adhesive layer material. At present, the more common sticky course materials are modified emulsified asphalt and emulsified asphalt. Traditional pavements are mostly paved with densely graded mixtures. In order to ensure the durability of the pavement structure and reduce water damage to the pavement, most of them are paved with waterproof adhe...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN101407387B "Second-order reaction type waterproof bonding material" discloses a waterproof bonding material suitable for cement concrete bridge deck, composite road surface, steel bridge deck asphalt layer, but this kind of material is not suitable for permeable pavement , cannot meet the water seepage requirements of the permeable pavement

[0004] Chinese patent CN105295830A "interlayer bonding waterproof material and its preparation method" discloses a concrete interlayer bonding material with high cohesive force and is not prone to segregation, but the application of this material in permeable pavement will greatly reduce the viscosity of the material. knot force, reduce road performance

For the development of permeable pavement in sponge city, the existing sticky layer materials cannot meet the needs in terms of water permeability and cohesive force.

Images