Influence factors of deicing and thaw performance of asphalt mixture with low freezing point

Authors

ZHOU Shuiwen, Sichuan Highway Planning, Survey, Design, and Research Institute Ltd, Chengdu, Sichuan 611141, China; 2. Research and Development Center of Transport Industry of Technologies, Materials and Equipments of Highway Construction and Maintenance, Chengdu, Sichuan 611130, China; 3. Sichuan Provincial Laboratory of Pavement Structural Materials and Maintenance Engineering, Chengdu, Sichuan 611130, ChinaFollow
LIN Fang, Liangshan Highway Administration Bureau, Xichang, Sichuan 615000, China
ZHANG Xiaohua, Sichuan Highway Planning, Survey, Design, and Research Institute Ltd, Chengdu, Sichuan 611141, China; 2. Research and Development Center of Transport Industry of Technologies, Materials and Equipments of Highway Construction and Maintenance, Chengdu, Sichuan 611130, China; 3. Sichuan Provincial Laboratory of Pavement Structural Materials and Maintenance Engineering, Chengdu, Sichuan 611130, China
ZHANG Lingbo, Sichuan Highway Planning, Survey, Design, and Research Institute Ltd, Chengdu, Sichuan 611141, China; 2. Research and Development Center of Transport Industry of Technologies, Materials and Equipments of Highway Construction and Maintenance, Chengdu, Sichuan 611130, China; 3. Sichuan Provincial Laboratory of Pavement Structural Materials and Maintenance Engineering, Chengdu, Sichuan 611130, China
JIANG Haoqiu, Sichuan Highway Planning, Survey, Design, and Research Institute Ltd, Chengdu, Sichuan 611141, China; 2. Research and Development Center of Transport Industry of Technologies, Materials and Equipments of Highway Construction and Maintenance, Chengdu, Sichuan 611130, China; 3. Sichuan Provincial Laboratory of Pavement Structural Materials and Maintenance Engineering, Chengdu, Sichuan 611130, China

Abstract

The conductivity test was used to study the release law of thawing and deicing components. The freezing test was used to study the cooling law of the mixture, and the thawing rate test was used to study the thawing and deicing performance. The results show that the release of thawing and deicing components of materials with a low freezing point is temperature-dependent, and the release at the high temperature is 3.49–3.77 times that at the low temperature. The granular materials tend to dissolve in water, which results in the release rate of thawing and deicing components faster than that of the filler materials. The freezing process is divided into three stages. The freezing point and duration of the freezing stage are affected by the type and amount of material, as well as the water content, and the freezing point of ZG-10S is the lowest. Increasing the dosage and decreasing the water content are equivalent to increasing the concentration of the solution, which can effectively reduce the freezing point. The melting time has the greatest and most significant influence on the thawing and deicing performance, followed by temperature because the temperature dependence of the release rate determines the limited effect of thawing and deicing.

Publication Date

3-17-2023

DOI

10.14048/j.issn.1671-2579.2023.01.037

First Page

207

Last Page

214

Submission Date

March 2025

Recommended Citation

Shuiwen, ZHOU; Fang, LIN; Xiaohua, ZHANG; Lingbo, ZHANG; and Haoqiu, JIANG (2023) "Influence factors of deicing and thaw performance of asphalt mixture with low freezing point," Journal of China & Foreign Highway: Vol. 43: Iss. 1, Article 81.
DOI: 10.14048/j.issn.1671-2579.2023.01.037
Available at: https://zwgl1980.csust.edu.cn/journal/vol43/iss1/81