Restrained shrinkage cracking of fiber-reinforced self-consolidating concrete


Kwon S. H. , Ferron R. P. , Shah S. P. , Akkaya Y.

6th RILEM International Conference on Cracking in Pavements, Illinois, United States Of America, 16 - 18 June 2008, pp.179-180 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Illinois
  • Country: United States Of America
  • Page Numbers: pp.179-180

Abstract

Fiber-forced self-consolidating concrete (FRSCC) is a new type of concrete mix that can mitigate two opposing weaknesses: poor workability in fiber-rein forced concrete and cracking resistance in plain concrete. This study focused on 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 concrete. In addition, a finite element analysis for those specimens was 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.