Skip to main content

ORIGINAL RESEARCH article

Front. Mater.
Sec. Structural Materials
Volume 11 - 2024 | doi: 10.3389/fmats.2024.1411558

Study on Anti-Segregation Performance of Cement Stabilized Macadam and Its Impact on Mechanical and Shrinkage Properties

Provisionally accepted
Xiaokun chen Xiaokun chen 1Caihong deng Caihong deng 2Xinming zhai Xinming zhai 2wenjin di wenjin di 3*Xuanhao Cao Xuanhao Cao 4Bowen Guan Bowen Guan 4*
  • 1 Qinghai Traffic Control Construction Engineering Group Co., Ltd., Xining, 810001, China, Xining, China
  • 2 Qinghai Guoluo Highway Engineering Construction Co., Ltd., Xining, 810000, China, Xining, China
  • 3 Xinjiang Agricultural University, Ürümqi, China
  • 4 School of Materials Science and Engineering, Chang’an University, Xi’an, China

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

    This study systematically explores the relationship between the mechanical and shrinkage properties of cement-stabilized macadam (CSM) stone base layers and their resistance to segregation to address the issue of segregation in wide and thick base layers. It establishes three cement dosage levels and five aggregate gradation types (GW1, GW2, GW3, GW4, and GW5). This research evaluates the antisegregation performance of the mixtures by introducing the shape segregation coefficient L and the sieving segregation coefficient Seg and investigates how these properties influence segregation resistance. The findings revealed that mixtures with GW3 and GW4 gradations exhibit superior segregation resistance, with the most concentrated gradation curves in each zone. These mixtures form a robust force chain structure that resists segregation tendencies during descent. With a 5% cement content, the shape segregation coefficient L decreases by an average of 3.1%, and the sieve segregation coefficient Seg reduces by 14.0%. In addition, mixtures with GW3 and GW4 gradations show optimal drying shrinkage properties. Effective segregation-resistant gradations can significantly reduce the dry shrinkage coefficient of the specimens.

    Keywords: Cement-stabilized macadam, Segregation resistance, mechanical property, Shrinkage property, Correlation analysis

    Received: 04 Apr 2024; Accepted: 05 Aug 2024.

    Copyright: © 2024 chen, deng, zhai, di, Cao and Guan. 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:
    wenjin di, Xinjiang Agricultural University, Ürümqi, China
    Bowen Guan, School of Materials Science and Engineering, Chang’an University, Xi’an, 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.