Title: Shrinkage Cracking of Fiber Reinforced Concrete

Author(s): Miroslaw Grzybowski, and Surendra P. Shah

Publication: Materials Journal

Volume: 87

Issue: 2

Appears on pages(s): 138-148

Keywords: bonding; cracking (fracturing); creep properties; curing; damage; drying shrinkage; fiber reinforced concretes; metal fibers; microcracking; microscopy; models; polypropylene fibers; tests; Materials Research

DOI: 10.14359/1951

Date: 3/1/1990

Abstract:
Tests were conducted using a ring-type specimen to simulate restrained shrinkage cracking. The effect of two types of fibers (steel and polypropylene), amounts of fibers (0.1 to 1.5 percent by volume), age of concrete (2 hr or 4 days), and period of drying (up to six weeks) under a given environment {40 percent relative humidity and 20 C (68 F)} were studied. The results were compared satisfactorily with a theoretical model developed by the authors.