Experimental behavior and analysis of high strength concrete beams reinforced with PET waste fiber

摘要

This paper describes material properties of high strength concrete containing different PET waste fiber in terms of fiber volume and length. Structural behavior of reinforced concrete beams made of this newly developed concrete has been fairly investigated. Cracking performance of beams was found to improve as a result of using PET waste fiber, but there is no chance to increase the ultimate load capacity. There is some strength loss of the beam mainly attributed to the degradation take place in compressive strength of concrete, but mode of failure of tested concrete beams was almost identical to that of control beam without PET waste fiber. Ultimate moment capacity of concrete section with PET fiber can be calculated accurately following the recommendation of the ACI 318 code. The results are interested and can encourage researchers to work on this kind of recycled high strength concrete for structural applications in future. (C) 2020 Elsevier Ltd. All rights reserved.