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Abstract

To improve the mechanical properties of asphalt concrete, this paper studied the influence of cotton fiber on the mechanical properties of asphalt concrete. By taking 140# soft asphalt as an example, it respectively prepared cotton fiber asphalt concrete and plain asphalt concrete with the content of 1%, 4%, and 7%. Based on this, rutting tests, compression tests, flexural tests, and freeze-thaw tests were conducted to analyze the changes in stability, compressional strength, flexural-tensile strength, and tensile strength of cotton fiber asphalt concrete. The results show that adding a certain amount of cotton fiber (0%-4%) can significantly improve the mechanical properties of asphalt concrete. When the cotton fiber content exceeds 4%, the mechanical properties of asphalt concrete will decrease. Therefore, the optimal content of cotton fiber in asphalt concrete is 4%.

Publication Date

8-18-2022

DOI

10.14048/j.issn.1671-2579.2022.04.036

First Page

199

Last Page

202

Submission Date

May 2025

Reference

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