Skip to main content

ORIGINAL RESEARCH article

Front. Mater.
Sec. Structural Materials
Volume 11 - 2024 | doi: 10.3389/fmats.2024.1453768
This article is part of the Research Topic Asphalt Pavement Performance under Complex Service Conditions View all 5 articles

Impact of salt erosion on mechanical and drying shrinkage performance of cement stabilized macadam

Provisionally accepted
Chengbin Wang Chengbin Wang 1*Yadi Chen Yadi Chen 2*Baoping An Baoping An 3*Qinglin Guo Qinglin Guo 4*Yibo Wang Yibo Wang 4*
  • 1 Linxia Highway Development Center of Gansu Province, Linxia, China
  • 2 Kanglin Expressway Toll Station of Gansu Province, Linxia, China
  • 3 Gansu Provincial Transportation Planning Survey and Design Institute Co., Ltd., Lanzhou, Gansu Province, China
  • 4 Hebei University of Engineering, Handan, China

The final, formatted version of the article will be published soon.

    Abstract：The arch expansion damage of asphalt pavement is a typical disease in desert Gobi and saline-alkali areas, and the reasons for arch expansion are very complex. Exploring the impact of salt solution on the mechanical and drying shrinkage performances of cement-stabilized macadam helps to clarify the causes of the arch expansion damage. To this purpose, this paper designed a salt solution infiltration experiment, using salt solution infiltration to simulate the transmission and accumulation of salts in cement-stabilized macadam, and carried out the compressive and flexural tests of cement-stabilized mortar and cement-stabilized macadam, and measured the drying shrinkage performance of cement-stabilized mortar and macadam. The results show that the type of salt solution has a significant influence on the weight of the cement-stabilized mortar samples, sulfates will cause the samples to lose weight, while chlorides and mixed solutions cause the increase in weight. Chlorides and sulfates lead to the decrease in the strengths of cement-stabilized mortar and macadam. The salt crystallization will lead to the decline of the drying shrinkage strains of cement-stabilized mortar and macadam, which has a positive action for reducing the drying shrinkage deformation. However, under the combined action of chlorides and sulfates, cement-stabilized macadam expands with the moisture loss. This may be one of the important causes of the arch expansion of asphalt pavement in the Gobi area and saline-alkali area.

    Keywords: Cement-stabilized macadam, Arch expansion, Salt erosion, mechanical property, drying

    Received: 24 Jun 2024; Accepted: 22 Jul 2024.

    Copyright: © 2024 Wang, Chen, An, Guo and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Chengbin Wang, Linxia Highway Development Center of Gansu Province, Linxia, China
    Yadi Chen, Kanglin Expressway Toll Station of Gansu Province, Linxia, China
    Baoping An, Gansu Provincial Transportation Planning Survey and Design Institute Co., Ltd., Lanzhou, Gansu Province, China
    Qinglin Guo, Hebei University of Engineering, Handan, China
    Yibo Wang, Hebei University of Engineering, Handan, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.