Effect of mixing on properties of SCC

Mette Rica Geiker, John Peter Ekstrand, Rune Hansen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The method of mixing may affect the degree of agglomeration of particles in cement-based materials and thus the properties of the materials in their fresh, hardening, and hardened state. The larger the external force applied during mixing, the larger surface forces can be overcome and the smaller agglomerates will remain. The paper focuses on the effect of mixing schedule on self-compacting concrete properties. Workability and micro structure of a typical Danish self-compacting concrete mixed at varying intensity and with addition of superplasticizer in either one or two batches are described. The observations indicate that the most homogeneous concrete does not necessarily exhibit the lowest rheological properties.
    Original languageEnglish
    Title of host publicationSelf-Compacting Concrete SCC 2007 : Proceedings of the Fifth International RILEM Symposium
    Number of pages1055
    Volume1
    Place of PublicationFrance
    PublisherRILEM Publishing S.A.R.L.
    Publication date2007
    Edition1
    Pages231-238
    ISBN (Print)978-2-35158-050-9
    Publication statusPublished - 2007
    Event5th International Symposium on Self-Compacting Concrete - Ghent, Belgium
    Duration: 3 Sep 20075 Sep 2007
    Conference number: 5
    http://www.rilem.net/gene/main.php?base=500218&id_publication=59

    Conference

    Conference5th International Symposium on Self-Compacting Concrete
    Number5
    Country/TerritoryBelgium
    CityGhent
    Period03/09/200705/09/2007
    Internet address

    Bibliographical note

    Invited paper

    Keywords

    • Particle suspensions, cement, rheology, dispersion, coagulation, mixing procedure.

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