Potential External Strengthening of Reinforced Concrete Beam Using Natural Fiber Composite Plate

Chin, Siew Choo and Foo, Sheng Tong and Doh, Shu Ing and Jolius, Gimbun and Yuen, Kei Foo and Siregar, J. P. (2017) Potential External Strengthening of Reinforced Concrete Beam Using Natural Fiber Composite Plate. In: 3rd International Conference on Civil, Architectural, Structural and Constructional Engineering (ICCASCE 2017) , 14-16 July 2017 , Seoul, Korea. . (Unpublished)

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Abstract

Natural fiber composites have been extensively studied due to its low environmental impact, low cost and available under a wide range of applications. A study has been conducted to investigate the potential use of mengkuang leaves or Pandanus atrocarpus bonded with epoxy resin as external strengthening material for the strengthening of reinforced concrete (RC) beams. Physical and mechanical properties as well as structural properties of the mengkuang leaves-epoxy composite plate (MLECP) was evaluated in this study. Chemical treatment was performed on the dried mengkuang leaves using sodium hydroxide (NaOH) with concentration of 2%, 5% and 8%. Scanning electron microscope (SEM) and flexural strength tests were conducted on the treated and untreated mengkuang leaves and flexural specimens, respectively. Strengthening of RC beams using MLECP were conducted and tested to failure under four-point loading. Results showed that the flexural strength of the composites with 0.3 fiber volume ratio exhibited the highest flexural strength, about 96% higher than the unreinforced-epoxy plate. In terms of structural properties, it was found that the strengthened beam using MLECP managed to increase the beam capacity to about 10% higher than the control beam.

Item Type:	Conference or Workshop Item (Speech)
Uncontrolled Keywords:	Beam; Composite; External strengthening; Natural fiber; Reinforced concrete
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery
Faculty/Division:	Faculty of Civil Engineering & Earth Resources Faculty of Mechanical Engineering
Depositing User:	Mrs. Neng Sury Sulaiman
Date Deposited:	15 Nov 2017 01:24
Last Modified:	18 Apr 2018 01:45
URI:	http://umpir.ump.edu.my/id/eprint/18902
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