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Effect of fibers on concrete fresh, mechanical and transport properties

This research aim to investigate the effects of fibers on fresh, mechanical, mass transport properties of fibered concrete. The addition of fibers to conventional and high performance concrete had been utilized effectively in sustainable construction due to the reported enhancement of the concrete properties. This paper is part of intensive experimental investigation on the effects of the three most used fibers in construction industry (steel, polythene and fiberglass) on concrete structure during its life cycle. Fresh concrete mixes containing different embedded types and volumes of fibers were tested for workability. Hardened concrete specimens subjected to harsh curing and conditioning methods simulating UAE construction site setting were tested for compressive, splitting tensile and flexural strength. The transport properties were measured then specimens to pressure impregnated with fluorescent dye to study the extent and spatial distribution of dye intrusion. Image analysis was utilized for fibers and crack distribution.