Compressive, tensile and thermal properties of epoxy grouts subjected to underwater conditioning at elevated temperature

Shamsuddoha, M. and Islam, M. M. and Aravinthan, T. and Manalo, A. and Djukic, L. P. (2014) Compressive, tensile and thermal properties of epoxy grouts subjected to underwater conditioning at elevated temperature. In: 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), 9-12 Dec 2014, Byron Bay, Australia.

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Abstract

Oil and gas pipes are susceptible to failure initiated by corrosion due to their operating pressure under adverse atmospheric conditions. Repairs, comprising a composite shell assembled around the pipe with a small gap, which is then infilled with grout, are considered a suitable option for corroded pipelines. This paper presents the investigation on the mechanical (compression, tension) properties and glass transition temperatures of two infill grouts, after 1000 hour of hot/wet conditioning. An extended investigation on the moisture absorption behaviour was also carried out, revealing the highest absorption to be about 6% after 2520 hours of immersion. The glass transition temperatures of the grouts are reduced by approximately 20ºC. The results suggest that the grouts underwent significant reduction of strength and stiffness due to hot/wet conditioning when tested at an elevated temperature, compared to room temperature. This reduced strength and stiffness is the result of the grouts being tested in close proximity to their glass transition temperatures.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: This work is licensed under the Creative Commons Attribution 4.0 International License. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - No Department
Date Deposited: 02 Apr 2015 02:06
Last Modified: 13 Jun 2017 05:21
Uncontrolled Keywords: epoxy grout; repair; infill; hot/wet conditioning; properties
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: B Economic Development > 88 Transport > 8899 Other Transport > 889903 Pipeline Transport
B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870303 Polymeric Materials (e.g. Paints)
URI: http://eprints.usq.edu.au/id/eprint/26668

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