Mixed-mode fracture properties of concrete reinforced with ... .pdf

Mixed-mode fracture properties of concrete reinforced

with low volume fractions of steel and

polypropylene fibers 

Parviz Soroushian, Hafez Elyamany, Atef Tlili, Ken Ostowarid 

Abstract:

Mixed-mode fracture characteristics of plain con- crete and concrete with 0.3% volume fraction of polypropylene and steel fibers were investigated experimentally. Different test configurations and notch locations were used. The test results were interpreted using linear and nonlinear fracture mechanics concepts. Nonlinear fracture param- eters appropriately described the positive effects of low volume fractions of jibers on the mixed-mode fracture characteristics of concrete. The results help assess the eflectiveness of fibers in controlling the opening and slippage of cracks. 0 1998 Pub- lished by Elsevier Science Ltd. All rights reserved.