Waterborne epoxy modified emulsified asphalt concrete for steel bridge surface and preparation method thereof

Abstract

The invention provides a waterborne epoxy modified emulsified asphalt concrete for a steel bridge surface and a preparation method thereof. The waterborne epoxy modified emulsified asphalt concrete for the steel bridge surface is prepared by the following steps of: adding waterborne epoxy resin, a curing agent, and a stabilizing agent into modified emulsified asphalt, continuously stirring until the mixture is uniform, and shearing to obtain waterborne epoxy resin modified emulsified asphalt emulsion; and stirring coarse aggregate and fine aggregate in a container, adding the waterborne epoxyresin modified emulsified asphalt and then stirring, adding a filler and then mixing and stirring, and adding cement and stirring to obtain the waterborne epoxy modified emulsified asphalt concrete. A paving material prepared by the method has the characteristics of environment-friendliness, low volatile organic compound (VOC), low energy consumption, high bonding strength with a steel plate, high cryogenic stabilization, excellent water stability performance, high tenacity, and high fatigue resistance performance.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a water-based epoxy-modified emulsified asphalt concrete for a steel bridge deck and a preparation method thereof. Background technique [0002] The pavement materials of long-span steel box girder bridges have always been a hot spot and a difficult point in the world. The bridge deck pavement is directly laid on the steel plate. Under the influence of driving load, wind load, temperature change, earthquake and other factors, its stress and deformation are far more complicated than that of highway pavement or airport pavement, so its strength and deformation stability , fatigue durability, etc. have higher requirements. [0003] Long-span steel bridges have a large amount of deformation under the action of temperature and load, and steel box girders have good temperature conductivity and are easily affected by changes in external temperature. In the high ...

AI Technical Summary

Problems solved by technology

Moreover, the cost of epoxy asphalt concrete is too high and the curing time is long

The above successful programs abroad are affected by their own limitations and the special complex climate in our country, which have greatly restricted their large-scale promotion and application.