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    Effect of nano-CaCO3 on compressive strength development of high volume fly ash mortars and concretes

    199362_119897_HVFA_nano-CaCO3-compressive_strength.pdf (2.195Mb)
    Access Status
    Open access
    Authors
    Supit, S.
    Shaikh, Faiz
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Supit, S. and Shaikh, F. 2014. Effect of nano-CaCO3 on compressive strength development of high volume fly ash mortars and concretes. Journal of Advanced Concrete Technology. 12 (6): pp. 178-186.
    Source Title
    Journal of Advanced Concrete Technology
    DOI
    10.3151/jact.12.178
    ISSN
    1347-3913
    URI
    http://hdl.handle.net/20.500.11937/39779
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents the experimental results on the effect of nano-CaCO3 on compressive strength development of mortars and concretes containing high volume fly ash (HVFA). The effect of various nano-CaCO3 contents such as 1, 2, 3and 4% (wt.%) as partial replacement of cement on the compressive strength of mortars are evaluated in the first part. The nano-CaCO3 content which exhibited the highest compressive strength above is used in high volume fly ash mortars and concretes containing 40% and 60% class F fly ash. The results show that among four different nano-CaCO3contents, the addition of 1% nano-CaCO3 increased the compressive strength of mortars and concretes. The addition of1% nano-CaCO3 also increases the early age and 28 days compressive strengths of HVFA mortars and concretes. The X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) analysis results also support the above findings.

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