STP1568

    Experimental Study on Dynamic Properties of Clay Modified by Aught-Set Solidifying Agent Subjected to Freeze-Thaw Cycles

    Published: Oct 2013


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    Abstract

    Clay modified by a solidifying agent has been used in the recent construction of high-speed rails in northern China because of a lack of good fill material. In this study, the dynamic properties of a clay modified by “aught-set” solidifying agent (a Chinese product) subjected to freeze-thaw cycles were analyzed. Dynamic triaxial tests were carried out on clay modified by aught-set solidifying agent that had been subjected to freeze-thaw cycles. The variation of the critical dynamic stress (CDS) with the cycles and freezing temperature during freeze-thaw was obtained. The results show that the CDS of modified clay decreased with the number of freeze-thaw cycles and decreasing freezing temperature.

    Keywords:

    freeze, thaw, solidifying agent, modified soil, mechanical properties


    Author Information:

    Liu, Jiankun
    School of Civil Engineering, Beijing Jiaotong Univ., Beijing,

    Zhang, Jiannan
    School of Civil Engineering, Beijing Jiaotong Univ., Beijing,

    Chen, Mengqiao
    School of Civil Engineering, Beijing Jiaotong Univ., Beijing,

    Wang, Tianliang
    School of Civil Engineering, Shijiazhuang Railway Univ., Shijiazhuang,


    Paper ID: STP156820120141

    Committee/Subcommittee: D18.19

    DOI: 10.1520/STP156820120141


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