Study on anti‐scattering performance of asphalt concrete on aggregate scattering pavement of highway

Authors

YANG Siyuan, Zhejiang Communications Group Testing Technology Co., Ltd., Hangzhou, Zhejiang 310000, ChinaFollow
CHEN Guiliang, Huangqunan Branch, Zhejiang Communications Investment Group Co., Ltd., Quzhou, Zhejiang 324000, China

Abstract

Due to the lack of quantitative evaluation methods for aggregate scattering degree of expressway asphalt pavement in China and abroad, according to the disease characteristics of surface layer spalling, this paper adopted the Cantabro standard dispersion test to sample the concrete of the section with aggregate scattering of Huangqunan Expressway (G3) in Zhejiang Province. The dispersion impact damage modes of the mixture with different severity were analyzed, and the anti-dispersion performance of concrete was evaluated by mass loss rate and water absorption rate. The results show that aggregate scattering will reduce the density of the concrete structure at the surface layer, and the anti-dispersion performance of the damaged section is lower than that of the normal road surface. A more serious appearance scattering degree means a higher water absorption rate, lower anti-dispersion performance of the concrete and more broken specimens generated by the dispersion impact. Finally, based on the test results, the relevant suggestions for the treatment of aggregate scattering are put forward.

Publication Date

3-17-2023

DOI

10.14048/j.issn.1671-2579.2023.01.040

First Page

227

Last Page

230

Submission Date

March 2025

Recommended Citation

Siyuan, YANG and Guiliang, CHEN (2023) "Study on anti‐scattering performance of asphalt concrete on aggregate scattering pavement of highway," Journal of China & Foreign Highway: Vol. 43: Iss. 1, Article 40.
DOI: 10.14048/j.issn.1671-2579.2023.01.040
Available at: https://zwgl1980.csust.edu.cn/journal/vol43/iss1/40