Rehabilitation of Pre-Damaged RC Beam Containing Recycled Plastic Waste Using CFRP

Section: Research Paper
Issue
Vol. 30 No. 1 (2025): Volume 30 Issue 1
Published
Mar 1, 2025
Pages
164-174

Abstract

Over the past few decades, the utilization of fiber-reinforced polymer (FRP) composites for the purpose of strengthening and rehabilitating reinforced concrete (RC) structures has become widely recognized as a very effective approach to improving structural integrity and increasing lifespan. Ageing structures frequently require maintenance and repair as a result of severe environmental conditions, natural disasters, alterations in applied loads, corrosion of reinforcement, and insufficient maintenance. In this study, two aspects were considered. The first is to study the behavior of preloaded RC beams after rehabilitation using CFRP composite. The second aspect is to find the effects of waste plastic Polypropylene (PP) on the behavior of preloaded RC beams. Thus, three mixes were prepared with two different PP fiber plastic lengths 30 and 50 mm with a constant ratio equal to 1% as recommended by the literature. A total of ten RC beams with dimensions of (100 x 160 x 1600) mm were cast two of them played as control and the other were preloaded to 70% of the ultimate load calculated based on the control sample. Results showed adding waste plastic waste as PP fiber leads to an enhancement in overall concrete properties. Furthermore, retrofitting the pre-damaged RC beams with CFRP composite application resulted in a 70% enhancement in load-carrying capacity when U CFRP anchorage is used at both ends.

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Authors

Mand Kamal Askar

Highways and Bridges Engineering, Technical College of Engineering, Duhok Polytechnic University, Duhok, Kurdistan Region, Iraq

ORCID

Identifiers

https://doi.org/10.33899/arej.2024.152874.1370
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How to Cite

[1]
M. Kamal Askar and مند, “Rehabilitation of Pre-Damaged RC Beam Containing Recycled Plastic Waste Using CFRP”, AREJ, vol. 30, no. 1, pp. 164–174, Mar. 2025.
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