Study on thermal property of fast growing grass fiber and its asphalt mortar

Authors

XIA Chaoming, Southern Green Road Research Institute, Central South University of Forestry & Technology, Changsha, Hunan 410004, ChinaFollow
JIANG Kang, Hunan Transportation Research Institute Co., Ltd., Changsha, Hunan 410015, China
WU Chaofan, Hunan Engineering Technology Research Center for Resource Utilization of Building Solid Waste, Changsha, Hunan 410205, China
LIU Kefei, Southern Green Road Research Institute, Central South University of Forestry & Technology, Changsha, Hunan 410004, ChinaFollow

Abstract

In order to investigate the thermal properties of fast-growing grass fiber and its asphalt mortar, the physical properties and thermal properties of bamboo fiber, reed fiber, and its asphalt mortar were tested and compared with those of lignin fiber and its asphalt mortar by physical property test, thermal weight loss test, and differential scanning calorimetry test. The results show that the addition of plant fiber can effectively improve the high temperature performance of asphalt, but it has a slight inhibition effect on the low temperature performance of asphalt. The quality loss of plant fiber in different temperature ranges is the same. Among the three plant fibers, lignin fiber has the best thermal stability, followed by bamboo fiber and reed fiber. Plant fiber can effectively improve the thermal melting property of asphalt mortar, improve the thermal stability of asphalt mortar, and reduce the temperature sensitivity. Asphalt mortar of bamboo fiber has the best low temperature cracking resistance and temperature sensitivity, and the low temperature stability of fast-growing grass fiber is better than that of lignin fiber.

Publication Date

3-17-2023

DOI

10.14048/j.issn.1671-2579.2023.01.032

First Page

183

Last Page

188

Submission Date

March 2025

Recommended Citation

Chaoming, XIA; Kang, JIANG; Chaofan, WU; and Kefei, LIU (2023) "Study on thermal property of fast growing grass fiber and its asphalt mortar," Journal of China & Foreign Highway: Vol. 43: Iss. 1, Article 32.
DOI: 10.14048/j.issn.1671-2579.2023.01.032
Available at: https://zwgl1980.csust.edu.cn/journal/vol43/iss1/32