Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system

The existing reinforced concrete structures may require rehabilitation and strengthening to overcome deficiencies due to defect and environmental deterioration. Fibre Reinforced Polymer (FRP)-concrete bonding systems can provide solution for the deficiencies, but the durability of the bonded joint n...

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Main Authors: Mohd Hashim, Mohd. H., Mohd Sam, Abdul R., Hussin, Mohd W.
Format: Article
Language:English
Published: Taylors University 2016
Subjects:
Online Access:http://eprints.utm.my/72659/1/AbdulR.Mohd2016_Experimentalinvestigationontheeffect.pdf
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author Mohd Hashim, Mohd. H.
Mohd Sam, Abdul R.
Hussin, Mohd W.
author_facet Mohd Hashim, Mohd. H.
Mohd Sam, Abdul R.
Hussin, Mohd W.
author_sort Mohd Hashim, Mohd. H.
collection ePrints
description The existing reinforced concrete structures may require rehabilitation and strengthening to overcome deficiencies due to defect and environmental deterioration. Fibre Reinforced Polymer (FRP)-concrete bonding systems can provide solution for the deficiencies, but the durability of the bonded joint needs to be investigated for reliable structural performance. In this research the interfacial bonding behaviour of CFRP-concrete system under tropical climate exposure is main interest. A 300 mm concrete prism was bonded with CFRP plate on its two sides and exposed for 3, 6, and 9 months to laboratory environment, continuous natural weather, and wet-dry exposure in 3.5% saltwater solution at room and 40 °C temperature. The prisms were subjected to tension and compression load under bonding test to measure the strain and determine stress distribution and shear stress transfer behaviour. The results of the bonding test showed that load transfer was fairly linear and uniform at lower load level and changed to non-linear and non- uniform at higher load level. The force transfers causes the shear stress distribution being shifted along the bonded length. The combination of climate effects may have provided better curing of the bonded joints, but longer duration of exposure may be required to weaken the bond strength. Nevertheless, CFRP-concrete bonding system was only minimally affected under the tropical climate and salt solution.
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spelling utm.eprints-726592017-11-22T12:07:38Z http://eprints.utm.my/72659/ Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system Mohd Hashim, Mohd. H. Mohd Sam, Abdul R. Hussin, Mohd W. TA Engineering (General). Civil engineering (General) The existing reinforced concrete structures may require rehabilitation and strengthening to overcome deficiencies due to defect and environmental deterioration. Fibre Reinforced Polymer (FRP)-concrete bonding systems can provide solution for the deficiencies, but the durability of the bonded joint needs to be investigated for reliable structural performance. In this research the interfacial bonding behaviour of CFRP-concrete system under tropical climate exposure is main interest. A 300 mm concrete prism was bonded with CFRP plate on its two sides and exposed for 3, 6, and 9 months to laboratory environment, continuous natural weather, and wet-dry exposure in 3.5% saltwater solution at room and 40 °C temperature. The prisms were subjected to tension and compression load under bonding test to measure the strain and determine stress distribution and shear stress transfer behaviour. The results of the bonding test showed that load transfer was fairly linear and uniform at lower load level and changed to non-linear and non- uniform at higher load level. The force transfers causes the shear stress distribution being shifted along the bonded length. The combination of climate effects may have provided better curing of the bonded joints, but longer duration of exposure may be required to weaken the bond strength. Nevertheless, CFRP-concrete bonding system was only minimally affected under the tropical climate and salt solution. Taylors University 2016 Article PeerReviewed application/pdf en http://eprints.utm.my/72659/1/AbdulR.Mohd2016_Experimentalinvestigationontheeffect.pdf Mohd Hashim, Mohd. H. and Mohd Sam, Abdul R. and Hussin, Mohd W. (2016) Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system. Journal of Engineering Science and Technology, 11 (4). pp. 584-604. ISSN 1823-4690 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84982267483&partnerID=40&md5=a9492d9171461271d06171658fd40758
spellingShingle TA Engineering (General). Civil engineering (General)
Mohd Hashim, Mohd. H.
Mohd Sam, Abdul R.
Hussin, Mohd W.
Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system
title Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system
title_full Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system
title_fullStr Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system
title_full_unstemmed Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system
title_short Experimental investigation on the effect of natural tropical weather on interfacial bonding performance of CFRP-concrete bonding system
title_sort experimental investigation on the effect of natural tropical weather on interfacial bonding performance of cfrp concrete bonding system
topic TA Engineering (General). Civil engineering (General)
url http://eprints.utm.my/72659/1/AbdulR.Mohd2016_Experimentalinvestigationontheeffect.pdf
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