Vibrated concrete vs. self-compacting concrete: comparison of fracture mechanics propertiesReport as inadecuate




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(2014)Key Engineering Materials.601.p.199-202 Mark abstract This study focuses on the fracture mechanics aspect of self-compacting concrete, compared to vibrated concrete. The most commonly used experiments to investigate the toughness and cracking behaviour of concrete are the three-point bending test (3PBT) on small, notched beams, and the wedge-splitting test (WST) on cubic samples with guiding groove and starter notch. From the resulting P-CMOD curves (applied load versus crack mouth opening displacement), different fracture parameters, such as fracture energy and fracture toughness, can be extracted. Moreover, using inverse analysis, the sigma-w relationship (tensile stress versus crack width) can be derived. This paper lists the results of a series of tests on samples, made of VC, SCC of equal strength, and SCC with identical w/c factor. Subsequently, a comparison of the mechanical characteristics is made, revealing important differences regarding several fracture parameters.

Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-4267787



Author: Sara Korte, Veerle Boel , Wouter De Corte and Geert De Schutter

Source: https://biblio.ugent.be/publication/4267787



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