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Evaluation on Strength Properties of Lime–Slag Stabilized Loess as Pavement Base Material

Author

Listed:
  • Liang Jia

    (College of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

  • Li Zhang

    (College of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

  • Jian Guo

    (College of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

  • Kai Yao

    (Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore)

  • Sin Mei Lim

    (Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore)

  • Bin Li

    (School of Transportation, Wuhan University of Technology, Wuhan 430063, China)

  • Hui Xu

    (Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
    School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, China)

Abstract

This study aimed to investigate the feasibility of using lime–slag stabilized loess as base-course material by assessing its unconfined compressive strength (UCS). Loess stabilized with various mix ratios were compacted and cured to three, five, seven, and 28 days, respectively, for further strength tests. The effects of binder content, lime-to-slag (L/S) ratio, porosity, and curing time on the UCS of stabilized loess were addressed in detail. The test results show that UCS increases with the increase in binder content or curing time, and it gains strength rapidly within the first seven days of curing. At the same binder content, UCS decreases with the decrease in L/S ratio or porosity. Finally, the correlations of UCS with binder content, porosity, and curing time were derived, which exhibited reasonable correlation coefficients R 2 (from 0.86 to 0.97).

Suggested Citation

  • Liang Jia & Li Zhang & Jian Guo & Kai Yao & Sin Mei Lim & Bin Li & Hui Xu, 2019. "Evaluation on Strength Properties of Lime–Slag Stabilized Loess as Pavement Base Material," Sustainability, MDPI, vol. 11(15), pages 1-15, July.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:15:p:4099-:d:252755
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    References listed on IDEAS

    as
    1. Maria Criado & Brant Walkley & Xinyuan Ke & John L. Provis & Susan A. Bernal, 2018. "Slag and Activator Chemistry Control the Reaction Kinetics of Sodium Metasilicate-Activated Slag Cements," Sustainability, MDPI, vol. 10(12), pages 1-14, December.
    2. Yang-Hee Kwon & Sung-Hoon Kang & Sung-Gul Hong & Juhyuk Moon, 2018. "Enhancement of Material Properties of Lime-Activated Slag Mortar from Intensified Pozzolanic Reaction and Pore Filling Effect," Sustainability, MDPI, vol. 10(11), pages 1-14, November.
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    Cited by:

    1. Liang Jia & Jian Guo & Yanbin Jiang & Yong Fu & Zhidong Zhou & Sin Mei Lim & Xiushao Zhao, 2019. "Experimental Investigation on Shear Strength Parameters of Lime Stabilized Loess," Sustainability, MDPI, vol. 11(19), pages 1-16, September.

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