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    Volume 49, Issue 6 (April 2021)

    Experimental Study on the Stress-Strain Behavior of Self-Compacting Concrete Modified by Waste Rubber under Uniaxial Tension with Acoustic Emission Technique

    (Received 24 August 2020; accepted 18 February 2021)

    Published Online: 30 April 2021

    CODEN: JTEVAB

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    Abstract

    Tensile characteristics of concrete play an important role in structures. In this paper, the stress-strain behavior of self-compacting concrete modified by waste tire rubber (rubberized self-compacting concrete [RSCC]) under uniaxial tension is researched. Both monotonic and cyclic tests are conducted for RSCC with different rubber contents. The results demonstrate that the incorporation of rubber aggregate results in a lower uniaxial tensile strength but an improved deformation resistance, a high energy-dissipating ability, and a lower stiffness deteriorating rate. The acoustic emission (AE) technique is employed to detect the damage progression. Although the AE signals decrease with the increase of AE signals, the damage can be well represented by a relatively high emitting rate of AE signals. Furthermore, the load ratio, calm ratio, and relaxation ratio are used to characterize the damage development. It is found that the incorporation of rubber aggregate results in a complicated cracking behavior of specimen under uniaxial tension.

    Author Information:

    Liu, Zhiheng
    College of Civil and Transportation Engineering, Hohai University, Nanjing, Jiangsu

    Chen, Xudong
    College of Civil and Transportation Engineering, Hohai University, Nanjing, Jiangsu

    School of Civil Engineering, Southeast University, Nanjing, Jiangsu

    Chen, Bo
    College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu

    Cheng, Xiyuan
    College of Civil and Transportation Engineering, Hohai University, Nanjing, Jiangsu


    Stock #: JTE20200537

    ISSN:0090-3973

    DOI: 10.1520/JTE20200537

    Author
    Title Experimental Study on the Stress-Strain Behavior of Self-Compacting Concrete Modified by Waste Rubber under Uniaxial Tension with Acoustic Emission Technique
    Symposium ,
    Committee C09