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Crack intensity of the damaged RC beam repaired with epoxy injection using acoustic emission technique

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Published under licence by IOP Publishing Ltd
, , Citation M N Soffian Noor et al 2019 IOP Conf. Ser.: Mater. Sci. Eng. 615 012100 DOI 10.1088/1757-899X/615/1/012100

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ida_nsn@uitm.edu.my

ida_nsn@uitm.edu.my

ida_nsn@uitm.edu.my

ida_nsn@uitm.edu.my

ida_nsn@uitm.edu.my

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1 Faculty of Civil Engineering, Universiti Teknologi MARA, 13500 Permatang Pauh, Pulau Pinang, Malaysia

2 School of Civil Engineering, Universiti Sains Malaysia, Engineering Campus, Universiti Sains Malaysia (USM), Seri Ampangan, Seberang Perai Selatan, 14300 Nibong Tebal, Pulau Pinang, Malaysia

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1757-899X/615/1/012100

Abstract

This paper presents the intensity crack zones of a damaged reinforced concrete (RC) beam with the size of 200 mm x 300 mm x 1500 mm repaired with an epoxy injection under monotonic loading. The acoustic emission (AE) technique concurrent with three-point loading was used to monitor the behaviour of the beam. The intensity analysis based on AE signal strength was carried out on CH6 and CH7 at each crack mode. It was found that the intensity plots are well matched with the progression of the crack in the beam. It is inferred that the intensity zones can be utilised to characterise the damage in the beam.

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10.1088/1757-899X/615/1/012100