Journal Published Online: 17 December 2020
Volume 9, Issue 1

Analysis of Long-Term Performance and Snowmelt Capacity of Anti-Freezing Asphalt Pavement

CODEN: ACEMF9

Abstract

Anti-Freezing Asphalt Pavement (AFAP) has good snow-melting performance and is used widely in many countries around the world. The objective of this study was to analyze AFAP’s long-term performance and predict its snow-melting ability. Two types of anti-freezing stone matrix asphalt (SMA) mixtures (SMA-13 with Iceguard and SMA-13 with Mafilon) were prepared with the Marshall method. Water stability, high-temperature stability, low-temperature crack resistance, and freeze-thaw split tests were conducted to evaluate mixtures’ performance. Meanwhile, the effect of anti-freezing filler, asphalt content, and soaking temperature on the salt dissolution of anti-freezing asphalt mixtures was analyzed, and the snow-melting ability of AFAP was predicted based on the Back Propagation (BP) neural network. The results illustrated that water stability of anti-icing asphalt mixture reduced, and the dynamic stability after short-term aging was improved. The tensile strain and tensile strength ratio of the anti-icing asphalt mixture reduced after long-term aging and soaking in water. In addition, the salt dissolution rate increased with the increase of anti-freezing filler content and the decrease of asphalt content. The research conducted suggests that the BP Neural Network can be utilized to predict the snow-melting ability of the anti-freezing asphalt mixture, and the regression coefficient of the predicted and measured salt dissolution was higher.

Author Information

Wu, Shujuan
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, Xi’an, Shaanxi, China
Zheng, Mulian
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, Xi’an, Shaanxi, China
Liu, Qing
Guangdong Nanyue Transportation Investment and Construction Co., Ltd., Guangzhou, China
Zhou, Wen
Anhui Transport Consulting & Design Institute Co., Ltd., Hefei, China
Li, Yifeng
Highway Administration Bureau of Rizhao City, Rizhao, Shandong, China
Ma, Zonghui
Highway Administration Bureau of Dezhou City, Dezhou, Shandong, China
Pages: 28
Price: $25.00
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Details
Stock #: ACEM20200026
ISSN: 2379-1357
DOI: 10.1520/ACEM20200026