Durability of basalt rebars under alkaline environment

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Abstract

Basalt Fibre Reinforced Polymer (BRRP) is a new composite material made from basalt fibre, and resin matrix. It has been introduced to replace steel rebars as the main component of reinforced concrete structures because of their corrosion resistance under aggressive environments. This study investigates the mechanical properties of BFRP and the degradation state exposed to the alkaline environment and compares the corrosion rate with steel rebars. The flexural strength properties are tested as the parameter of mechanical properties. The results show that the flexural strength of BFRP is affected by immersion time (100h, 500h, 1000h) significantly. SEM results show mechanism of corrosion state that cracked resin matrix occurred and EDS results indicate the percentage components especially silicon elements that detected increased after corrosion. This research identifies a current knowledge gap and can be serve as a reference point for further studies on the properties of BFRP bars to replace steel bars for safe and economic reinforced concrete structures in alkaline environments.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Basalt Fibre Reinforced Polymer; Corrosion; Gradation rate; Flexural strength; Damage mechanism
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction
Faculty/Division:	Faculty of Civil Engineering Technology
Depositing User:	PM Dr. Ramdhansyah Putra Jaya
Date Deposited:	16 May 2023 01:31
Last Modified:	14 Sep 2023 07:00
URI:	http://umpir.ump.edu.my/id/eprint/37586
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