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Article

Structural Assessment of Reinforced Concrete Beams Incorporating Waste Plastic Straws

1
Faculty of Engineering, Beirut Arab University, Beirut 11 5020, Lebanon
2
Department of Civil Engineering, University of Tripoli, Tripoli 83038, Libya
3
Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Ul. Bbriela Narutowisza 11/12, 80-233 Gdansk, Poland
4
School of Natural and Built Environment, Queens University of Belfast, Belfast BT9 5AG, UK
*
Author to whom correspondence should be addressed.
Environments 2020, 7(11), 96; https://doi.org/10.3390/environments7110096
Received: 20 August 2020 / Revised: 15 October 2020 / Accepted: 26 October 2020 / Published: 29 October 2020
(This article belongs to the Special Issue Feature Papers in Environments in 2020)
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. View Full-Text
Keywords: waste plastic straws; load; deflection; strain measurements; concrete damage; ductility waste plastic straws; load; deflection; strain measurements; concrete damage; ductility
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MDPI and ACS Style

Khatib, J.M.; Jahami, A.; Elkordi, A.; Abdelgader, H.; Sonebi, M. Structural Assessment of Reinforced Concrete Beams Incorporating Waste Plastic Straws. Environments 2020, 7, 96. https://doi.org/10.3390/environments7110096

AMA Style

Khatib JM, Jahami A, Elkordi A, Abdelgader H, Sonebi M. Structural Assessment of Reinforced Concrete Beams Incorporating Waste Plastic Straws. Environments. 2020; 7(11):96. https://doi.org/10.3390/environments7110096

Chicago/Turabian Style

Khatib, Jamal M., Ali Jahami, Adel Elkordi, Hakim Abdelgader, and Mohammed Sonebi. 2020. "Structural Assessment of Reinforced Concrete Beams Incorporating Waste Plastic Straws" Environments 7, no. 11: 96. https://doi.org/10.3390/environments7110096

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