Title:
Impact Resistance of Concrete Containing Both Conventional Steel Reinforcement and Fibrillated Polypropylene Fibers
Author(s):
Sidney Mindness, Arnon Bentur, Cheng Yan, and Gary Vondran
Publication:
Materials Journal
Volume:
86
Issue:
6
Appears on pages(s):
545-549
Keywords:
bending; fiber reinforced concretes; fracture properties; impact strength; impact tests; loads (forces); polypropylene fibers; reinforcing steels; Materials Research
DOI:
10.14359/2181
Date:
11/1/1989
Abstract:
Concrete beams containing both conventional steel reinforcing bars and different volumes of fibrillated polypropylene fibers were tested in an instrumented, drop-weight impact machine. The impact strength and the fracture energy were determined. It was found that the presence of the fibers led to a considerable increase in fracture energy; the peak bending loads were not affected. The increase in fracture energy was much greater than the sum of the effects of polypropylene fibers and reinforcing bars considered separately.