Volume 3, Issue 3 (March 2006)

    The Effect of Aggregate Gradation on Engineering Properties of High Performance Concrete

    (Received 23 May 2005; accepted 28 September 2005)

    Published Online: 2005

    CODEN: JAIOAD

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    Abstract

    The main theme of this paper is to study the effects of aggregate packing types on the engineering properties of high performance concrete (HPC). Three types of aggregate packing (primitive, dense, gap gradation) and five kinds of paste amount (1.2, 1.4, 1.6, 1.8, 2.0 of void content within aggregate) are the major parameters to evaluate the properties of HPC. The test result indicates that the denser the aggregate packing the better the workability and engineering properties are under sufficient paste content. The application of the densified mixture design algorithm (DMDA) on designing HPC for every aggregate packing type can obtain high flowability and suitable strength growth. The strength efficiency of HPC designed by DMDA is much higher than that by the traditional one. The significant contribution of the aggregate packing to the performance of hardened HPC is obvious. The conclusion is that by applying DMDA, the gap-graded aggregate or other marginal material may be utilized to produce HPC.


    Author Information:

    Tasi, CT
    Ph.D. Candidate and Professor, National Taiwan University of Science and Technology, Taipei,

    Li, LS
    Associate Professor, Hwa-Sha Institute of Technology, Taipei County,

    Hwang, CL
    Ph.D. Candidate and Professor, National Taiwan University of Science and Technology, Taipei,


    Stock #: JAI13410

    ISSN: 1546-962X

    DOI: 10.1520/JAI13410

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    Author
    Title The Effect of Aggregate Gradation on Engineering Properties of High Performance Concrete
    Symposium , 0000-00-00
    Committee C09