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Abstract

In order to solve the problem that the deformation of epoxy asphalt concrete with steel bridge deck is inconsistent with that of the bridge deck, which leads to the early crack of epoxy asphalt concrete, the improvement effect of polyester fiber on the flexibility and toughness of epoxy asphalt concrete was evaluated by adding polyester fiber to epoxy asphalt concrete via using low temperature bending test and fatigue test method. The results show that polyester fiber exists in the asphalt by adsorption with the light components of asphalt, reinforcement inside the three-dimensional network, limiting, etc. At the same time, it cooperates with the craze matter generated by the asphalt to lock the forward expansion of the tip of the craze matter and the increase in the width of the craze matter. When the polyester fiber is added at the optimal content of 0.3%, Epoxy asphalt concrete has the optimal low temperature deformation capacity and fatigue resistance, and the flexibility and toughness of the mixture are optimal at this time.

Publication Date

6-18-2022

DOI

10.14048/j.issn.1671-2579.2022.03.044

First Page

247

Last Page

250

Submission Date

May 2025

Reference

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