Optimum mix design of concrete made with dune sand as fine aggregate

F. Luo, Z. Pan, W. H. Duan, X. L. Zhao, F. Collins

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    Abstract

    ![CDATA[The use of dune sand for replacing ordinary fine aggregate in concrete has environmental benefits and the feasibility has been demonstrated in China and some Middle East countries. However, the use of dune sand tends to decrease the engineering properties (compressive strength and workability) of concrete. To improve engineering properties of dune sand concrete (DSC), the current paper is to check which strength and slump levels can be obtained by obtained by optimization of mix proportions. Results show that the ratio of cement to sand (C/S) has significant influence on the engineering properties of DSC. At low C/S ratio, the engineering properties of DSC are inferior to those of concretes made with normal sand (NSC). However, when C/S ration exceeds 0.75, DSC has comparable tensile splitting strength and elastic modulus to its reference NSC. Based on the experimental results, the Australia dune sand can be used as fine aggregate whenever mix proportion are properly controlled.]]
    Original languageEnglish
    Title of host publicationProceedings of the 6th International Composites Conference (ACUN-6): Composite & Nanocomposites in Civil, Offshore and Mining Infrastructure, Monash University, Clayton, Australia, 14th-16th November 2012
    PublisherMonash University
    Pages233-239
    Number of pages7
    ISBN (Print)9780646585895
    Publication statusPublished - 2012
    EventInternational Composites Conference -
    Duration: 14 Nov 2012 → …

    Conference

    ConferenceInternational Composites Conference
    Period14/11/12 → …

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