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    Volume 48, Issue 3 (May 2020)

    Special Issue Paper

    A Metakaolin-Based Slurry Additive for Marine Concrete: Preparation and Properties Evaluation

    (Received 21 February 2019; accepted 3 September 2019)

    CODEN: JTEVAB

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    Abstract

    This article investigates the rheology, working performance, volume stability, carbonation resistance, and microstructure of marine concrete incorporated with metakaolin-based slurry additive. The effects of metakaolin-based slurry additive on the properties of concrete are studied. The results show that metakaolin-based slurry additive presents higher flowability than powdered additive. The slurry additive helps to improve the volume stability and resistance to carbonation and reduce the porosity of marine concrete. Compared to the powder additive, slurry additive presents better modification regarding the durability issues. Also, the interface transition zone (ITZ) of marine concrete with metakaolin-based slurry additive is more homogeneous than that of the powdered one.

    Author Information:

    Sun, Yu
    State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei

    School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, Hubei

    Yu, Rui
    State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei

    Shui, Zhonghe
    State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei

    Gao, Xu
    State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei

    Zheng, Li
    China Railway Major Bridge Engineering Group Co., LTD, Wuhan, Hubei

    Qian, Diao
    State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei

    School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, Hubei

    Huang, Jie
    State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei

    School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, Hubei


    Stock #: JTE20190136

    ISSN:0090-3973

    DOI: 10.1520/JTE20190136

    Author
    Title A Metakaolin-Based Slurry Additive for Marine Concrete: Preparation and Properties Evaluation
    Symposium ,
    Committee D34