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Strengthening of Reinforced Concrete Beams Using Bamboo Fiber/Epoxy Composite Plates in Flexure

Chin, Siew Choo and Moh, Jacky Neing Sheng and Doh, Shu Ing and Fadzil, Mat Yahaya and Jolius, Gimbun (2019) Strengthening of Reinforced Concrete Beams Using Bamboo Fiber/Epoxy Composite Plates in Flexure. Key Engineering Materials, 821. pp. 465-471. ISSN 1013-9826 (print); 1662-9795 (online)

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Fiber reinforced polymer (FRP) is widely used in the construction industry for structural strengthening due to their outstanding mechanical properties. However, the production of synthetic fibers such as FRP is detrimental to the environment. Alternatively, natural fiber composite may be used as external strengthening material. This paper presents the potential of bamboo fiber composite plate (BFCP) to strengthen the reinforced concrete (RC) beams in flexure. The bamboo of species Dendrocalamus asper was used to produce the fiber and fiber-to-volume ratio was set at 2:5. The composite plate was fabricated by binding bamboo fibers with epoxy using a hand-lay-up method. The flexural and tensile strength of the BFCP was measured and all the beams were tested to failure under four-point bending test. It was found that BFCP exhibited a higher flexural and tensile strength compared to pure epoxy samples. Meanwhile, the RC beams strengthened using BFCP exhibited an increment of 10-12 in beam structural capacity compared to the un-strengthened beams. Bonding of BFCP in the flexure zone was able to divert the vertical cracks into diagonal at the edge of the composite plate. Findings from this work may serve as a useful guide to strengthen RC beams using a BFCP.

Item Type: Article
Uncontrolled Keywords: Strengthening, Flexure, Structural, Natural Fibers, Reinforced Concrete Beams, Bamboo Fiber Composite
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Civil Engineering & Earth Resources
Depositing User: P. M. Dr. Jolius Gimbun
Date Deposited: 03 Oct 2019 06:14
Last Modified: 03 Oct 2019 06:14
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