The researchers’ primary objective was to evaluate the early-strength characteristics of self-compacting concrete (SCC), which is a type of concrete that can be placed without external vibration, even in congested areas. Two unique characteristics of SCC are its high-percentage substitution of cement with fly ash or slag cement, or with both fly ash and slag cement and a relatively high superplasticizer dosage. Both of these characteristics retard early-strength gain. The impetus was to develop self-compacting concrete with an early strength suitable for precast applications. The major findings are that it is possible to proportion SCC mixtures with high early strength (30 MPa at 16 h under steam curing) and that high slump does not necessarily correlate with self-compaction.


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    Title :

    Early Strength of Self-Compacting Concrete


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2000-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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