Memoria tratta da "The New Boundaries of Structural Concrete: Session C - New Scenarios for Concrete", ACI IC - Ancona 2011
This paper investigates mechanical properties of concrete reinforced by polymeric fibers at relatively low volume fractions, by comparing them with those of concrete without fibers. Two fiber volume fractions were considered: 0.33% and 0.44% by weight of concrete. Tests to evaluate workability, compressive strength, splitting tensile strength, and flexural tensile strength were carried out. Experimental results show that flexural properties of the polymeric fiber-reinforced concrete permit secondary reinforcement to be reduced; and, in some cases, avoid,, even in the presence of low amount of fibers. Results show that fibers inside the concrete matrix were uniformly distributed.
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