Study on the Influence of Mix Design Parameters on the Properties of Self-Compacting Concrete

Abstract:

the influence of mixing amount of mineral admixture, volume content of fine and coarse aggregate have been systematical studied on the workability, mechanical properties and volume stability of self-compacting concrete. Test results showed that with the fly ash content increased, the workability of self-compacting concrete improved significantly, early compressive strength decreased, but increase rate of later strength improved remarkably, and the mixing amount of fly ash inhibited significantly the dry shrinkage of self-compacting concrete; with the volume content of coarse aggregate increased, the workability of self-compacting concrete decreased significantly, but the volume stability of self-compacting concrete improved obviously, thus the optimum volume content of coarse aggregate of self-compacting concrete was range from 0.30 to 0.34; when the volume content of fine aggregate varied at the range of 0.40~0.50, there may be little effects on the workability of self-compacting concrete, but the increase self-compacting concretes volume content could reduce obviously the dry shrinkage of self-compacting concrete. Moreover, the variation in the volume content of coarse and fine aggregate should have slight influence on the early strength of self-compacting concrete, and the influence of the volume content variety on the later strength of self-compacting concrete could be neglected eventually.

• Periodical: Advanced Materials Research (Volume 857)
• Pages: 10-19
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.857.10
• Online since: December 2013
• Authors: Ji Liang Wang*, Xiang Qian Wen, Jun Hong Shan, Ying Liu
• Keywords: Dry Shrinkage, Mix Proportion, Self-Compacting Concrete, Workability

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