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Structural Assessment of Reinforced Concrete Beams Incorporating Waste Plastic Straws

Abstract

The behavior of reinforced concrete beams containing fibers made of waste plastic straws (WPSs) under the three point bending test is examined. The effect of WPS fiber addition on the compressive and split tensile strength is reported. Four concrete mixes were prepared. The control mix PS-0 had a proportion of 1 cement: 1 sand: 2 coarse aggregate and a water cement ratio of 0.4. In the other three mixes PS-0.5, PS-1.5 and PS-3, 0%, 0.5%, 1.5% and 3% of WPS fiber (by volume) was added respectively. The results show that at 0.5% WPS, there is slight increase in compressive strength. However, beyond 0.5% addition, a decrease in compressive strength is observed. The split tensile strength shows a systematic increase with the addition of WPS fibers. The reinforced concrete beams containing WPS fibers show higher ductility as demonstrated by the larger ultimate tensile strain and ductility index (Δu/Δy). There is a tendency to have more fine cracks with the presence of WPS fibers.

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Authors (5)

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
Environments no. 7,
ISSN: 2076-3298
Language:
English
Publication year:
2020
Bibliographic description:
Khatib J. M., Jahami A., Elkordi A., Abdelgader H., Sanebi M.: Structural Assessment of Reinforced Concrete Beams Incorporating Waste Plastic Straws// Environments -Vol. 7,iss. 11 (2020), s.96-
DOI:
Digital Object Identifier (open in new tab) 10.3390/environments7110096
Sources of funding:
  • COST_FREE
Verified by:
Gdańsk University of Technology

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