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Abstract

In order to study the effects of different types of anti-stripping agents on asphalt, this paper used two different anti-stripping agents (amines and silanes) to modify rubber powder-modified asphalt (AR). The rheological properties of the rubber powder-modified asphalt by anti-stripping agents of amines and silanes were evaluated by rut factor, recovery rate, non-recovery creep compliance, stiffness modulus, and creep rate. The results show that the fatigue factor of AR can be increased by the two different anti-stripping agents, and the fatigue performance of AR can be reduced. At the same time, the high temperature PG grade of AR is improved by anti-stripping agents of silanes, while the low temperature PG grade of AR is not affected by the two anti-stripping agents. In addition, the recovery rate of AR is improved by anti-stripping agents of silanes, and the non-recoverable creep compliance is decreased, while the addition of anti-stripping agents of amines has the opposite effect. It is also observed that anti-stripping agents of amines and silanes have a slight effect on the low temperature cracking resistance. In summary, the types of anti-stripping agents have a significant impact on the rheological properties of AR and should be fully considered before the use of specific anti-stripping agents.

Publication Date

11-24-2023

DOI

10.14048/j.issn.1671-2579.2023.05.043

First Page

254

Last Page

258

Submission Date

March 2025

Reference

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