98. Experimental investigation on slabs on grade: steel fibers vs. conventional reinforcement

Title: 98. Experimental investigation on slabs on grade: steel fibers vs. conventional reinforcement
Author(s): L. Sorelli, A. Meda, G.A. Plizzari, B Rossi
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 1083 - 1092
Total Pages: 10
Nb references: 14
Language: English

Abstract: Fracture behavior of Steel Fiber Reinforced Concrete (SFRC) slabs on grade was experimentally studied on full scale concrete specimens reinforced either with steel fibers or with conventional steel mesh. A Winkler soil was reproduced by means of several steel supports positioned in a uniform grind underneath the concrete slab, while three different loading configurations were considered, i.e. a concentrated load in the slab center, in the mid-span board and in one of the slab corners.
Fibers were found to effectively increase the bearing capacity of the slabs and to ensure a ductile failure mechanism with crack surface approximately localized along the median and diagonal lines of the square slabs. For the sake of comparison, some slabs reinforced with welded mesh were also tested; the latter exhibits the highest peak load, involving a crack pattern characterized by several cracks radially distributed.

Online publication: 2004-08-30
Publication type : full_text
Public price (Euros): 0.00