Cold spraying type epoxy thin bridge deck paving material and preparation method thereof

Abstract

The invention relates to a cold spraying type epoxy thin bridge deck paving material and a preparation method thereof. The cold spraying type epoxy thin deck paving material is characterized by comprising a binder and a single grading fine aggregate, wherein 1-2kg/m<2> of the binder is smeared on a bridge deck so as to form a binder layer; 5-8kg/m<2> of the single grading fine aggregate is sprayed on the binder layer so as to form a single grading fine aggregate layer; the binder is formed by mixing a component A with a component B, and the weight ratio of the component A to the component B is (1-1.4):1; the component A comprises the following raw materials in parts by weight: 75-85 parts of epoxy resin, 15-25 parts of modified epoxy resin and 5-10 parts of diluent; and the component B comprises the following raw materials in parts by weight: 20-30 parts of cycloaliphatic amide curing agent, 10-20 parts of modified amine curing agent and 40-60 parts of cured accelerator. The cold spraying type epoxy thin bridge deck paving material has the characteristics of good skid-resisting and wear-resisting properties, high adhesion strength with the bridge deck, good waterproof and seepage-proofing properties and good low temperature flexibility.

Description

technical field [0001] The invention relates to a bridge deck pavement material and a preparation method thereof, which are widely used in the pavement of cement concrete bridge decks and steel box girder bridge decks. Background technique [0002] Bridges are the throats of transportation, and their mileage accounts for a small proportion of the total mileage of highways, but their maintenance has a huge impact on the traffic capacity of the entire road network. Due to its special structural location, the service life of bridge deck pavement is much shorter than that of ordinary asphalt pavement. Since it is easier to form channelized traffic at the bridge, and the pavement is more complex in stress, the bridge deck pavement is more prone to early damage than ordinary asphalt pavement, which seriously restricts its service quality and life. Frequent maintenance, repairs, and even renovations not only waste a lot of financial, material and manpower, but also cause serious t...

AI Technical Summary

Problems solved by technology

Since it is easier to form channelized traffic at the bridge, and the pavement is more complex in stress, the bridge deck pavement is more prone to early damage than ordinary asphalt pavement, whi...