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http://dx.doi.org/10.4334/IJCSM.2007.1.1.003

Cracking of Fiber-Reinforced Self-Compacting Concrete due to Restrained Shrinkage  

Kwon, Seung-Hee (Center for Advanced Cement-Based Materials, Northwestern University)
Ferron, Raissa P. (Center for Advanced Cement-Based Materials, Northwestern University)
Akkaya, Yilmaz (Civil Engineering Dept. Istanbul Technical University)
Shah, Surendra P. (Center for Advanced Cement-Based Materials, Northwestern University)
Publication Information
International Journal of Concrete Structures and Materials / v.1, no.1, 2007 , pp. 3-9 More about this Journal
Abstract
Fiber-reinforced self-compacting concrete (FRSCC) is a new type of concrete mix that can mitigate two opposing weaknesses: poor workability in fiber-reinforced concrete and cracking resistance in plain SCC concrete. This study focused on early-age cracking of FRSCC due to restrained drying shrinkage, one of the most common causes of cracking. In order to investigate the effect of fiber on shrinkage cracking of FRSCC, ring shrinkage tests were performed for polypropylene and steel fiber-reinforced SCC. In addition, finite element analyses for those specimens were carried out considering drying shrinkage based on moisture diffusion, creep, cracking resistance of concrete, and the effect of fiber. The analysis results were verified via a comparison between the measured and calculated crack width. From the test and analysis results, the effectiveness of fiber with respect to reducing cracking was confirmed and some salient features on the shrinkage cracking of FRSCC were obtained.
Keywords
cracking; fiber-reinforced self compacting concrete; shrinkage; creep;
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