Volume 4, Issue 2 (January 1982)

    Development of High-Strength Concrete Incorporating a Large Percentage of Fly Ash and Superplasticizers

    CODEN: CCAOAD

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    Abstract

    In this paper results are reported of an investigation performed to develop high-strength concrete incorporating superplasticizers and a large percentage of fly ash as a replacement for normal portland cement. The concrete mix developed had a water to (cement + fly ash) ratio of 0.28, cement and fly ash contents of 390 and 230 kg/m3, respectively, and a large dosage of a superplasticizer. The 28-day compressive strength of 152- by 305-mm cylinders ranged from 51.0 to 53.8 MPa, and the 28-day flexural strength was approximately 8 MPa. The drying shrinkage and creep values were comparable to the corresponding values of the reference mix. It was concluded that the concrete developed was satisfactory in both workability and early age strength and should find uses in precast concrete operations for the production of high-strength structural units.


    Author Information:

    Loughborough, MT
    Research engineer and senior technologist, Ontario Hydro, Toronto,

    Mukherjee, PK
    Research engineer and senior technologist, Ontario Hydro, Toronto,

    Malhotra, VM
    Head, Construction Materials Section, Mineral Sciences Laboratories, CANMET Energy, Mines and Resources Canada, Ottawa,


    Stock #: CCA10232J

    ISSN: 0149-6123

    DOI: 10.1520/CCA10232J

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    Author
    Title Development of High-Strength Concrete Incorporating a Large Percentage of Fly Ash and Superplasticizers
    Symposium , 0000-00-00
    Committee C09