Title:
Behavior of Steel Fiber Reinforced Concrete in Multiaxial Loading
Author(s):
Jenn-Chuan Chern, Hong-Jen Yang, and HongG-Wen Chen
Publication:
Materials Journal
Volume:
89
Issue:
1
Appears on pages(s):
32-40
Keywords:
axial loads; bond (concrete to concrete); compressive strength; fiber reinforced concrete; hydrostatic pressure; loads (forces); strains; steel fibers; tensile strength; Materials Research
DOI:
10.14359/1242
Date:
1/1/1993
Abstract:
Experimental investigations were carried out to study the strength and deformational behavior of steel fiber reinforced concrete subjected to multiaxial stresses. A triaxial cell was installed in a displacement-controllable servo-hydraulic testing system so that the post-peak stress-strain response of specimens under cylindrical state of stress could be obtained. The test results show that better behavior of steel fiber reinforced concrete was found, as compared to plain concrete, particularly when tensile stresses are involved. Under triaxial compressive tests, using fibers increases the strength and ductility when the confining pressure increases; this is regarded as the increase of interfacial bond strength due to the confining pressure on fibers. As the confining pressure is applied up to 70 MPa, the addition of fibers to concrete has insignificant effect on the mechanical behavior of concrete subjected to hydrostatic compression.