Volume 20, Issue 2 (December 1998)

    Two-Hour Zero Slump Loss, High-Strength Pumpable Concrete—An Application Case in Dam Structure

    (Received 20 February 1998; accepted 22 August 1996)

    CODEN: CCAOAD

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    Abstract

    About 700 000 m3 of pumpable concrete, which was produced by a high-range water-reducing admixture (HRWRA) and relatively low-strength cement, was used in the Xiao Lang Di water conservancy project. The concrete achieved a 28-day compressive strength as high as 90 MPa, a slump of 20 cm, and almost no slump loss in 2.5 h after mixing, as well as good freeze-thaw durability. The paper describes in detail the mix proportions, the method to control slump loss, and the related mechanical properties.


    Author Information:

    Feng, N
    Tsinghua University, Beijing,

    Zhuang, Q
    Tsinghua University, Beijing,


    Stock #: CCA10416J

    ISSN: 0149-6123

    DOI: 10.1520/CCA10416J

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    Author
    Title Two-Hour Zero Slump Loss, High-Strength Pumpable Concrete—An Application Case in Dam Structure
    Symposium , 0000-00-00
    Committee C09