Crack Width Analysis of Reinforced Self-Compacting Concrete Beams

Abstract:

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Self compacting concrete is a concrete mixture specifically designed not to require external energy for compaction. This property results in many advantages for precast as well as ready-mix concrete applications. Especially, dense reinforcements or slender elements can be achieved. However, in current design codes this concrete is treated as traditional concrete although the mix composition is substantially different. Due to a decrease in coarse aggregates, combined with a higher amount of chemical and mineral admixtures, the overall mechanical behavior may differ from that of traditional concrete even when the compressive strength of both mixtures are equal. This is especially visible in the crack formation in the tensile zone of concrete beams. This paper presents results of an analysis of crack formation, distribution and width on reinforced concrete beams with varying reinforcement ratios. Differences in crack properties, favoring self-compacted over traditional concrete are found for all considered reinforcement ratios, although the results are less pronounced for the higher ratios. The results may allow a favorable serviceability limit state criteria for this material.

Info:

Periodical:

Key Engineering Materials (Volumes 452-453)

Edited by:

A. Saimoto and M.H. Aliabadi

Pages:

629-632

DOI:

10.4028/www.scientific.net/KEM.452-453.629

Citation:

W. de Corte and V. Boel, "Crack Width Analysis of Reinforced Self-Compacting Concrete Beams", Key Engineering Materials, Vols. 452-453, pp. 629-632, 2011

Online since:

November 2010

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Price:

$35.00

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