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    Hydration and microstructural properties of cement paste containing nano and microsilica

    Access Status
    Fulltext not available
    Authors
    Chow, P.
    Barbhuiya, Salim
    Date
    2014
    Type
    Conference Paper
    
    Metadata
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    Citation
    Chow, P. and Barbhuiya, S. 2014. Hydration and microstructural properties of cement paste containing nano and microsilica, in Chantawarangul, K. et al (ed), Proceedings of the Second Australasia and South East Asia Conference in Structural Engineering and Construction (ASEA-SEC-2), Nov 3-7 2014, pp. 433-438. Bangkok, Thailand: ISEC Press.
    Source Title
    Sustainable Solutions in Structural Engineering
    Source Conference
    Second Australasia and South East Asia Conference in Structural Engineering and Construction
    Additional URLs
    http://www.isec-society.org/ISEC_PRESS/ASEA-SEC_02/pdf/M-42_v3_321.pdf
    ISBN
    9780996043700
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/14867
    Collection
    • Curtin Research Publications
    Abstract

    The influence of nano- and microsilica addition on ordinary Portland cement (OPC) pastes has been studied in terms of hydration and microstructural properties. Three different combinations of nano- and microsilica mixes were used. A constant water-binder ratio of 0.35 was maintained throughout the experiment. All samples were tested for initial and final setting time and compressive strengths were determined at the age of 3, 7, 28, and 90 days of hydration. The hydration products were examined by SDT and XRD analysis at various curing ages. The inclusion of nano- and microsilica reduced the initial and final setting time significantly, increased the compressive strength of hardened cement paste after 7 days of hydration, and reduced the amount of calcium hydroxide in the hardened paste compared to mixes without these nanoparticles.

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