Bond strength of fly ash geopolymer with CFRP fabric after exposure to high temperature

Sarker, Prabir; Borak, A.; Mukherjee, A.; Rangan, V.

Access Status

Fulltext not available

Authors

Sarker, Prabir

Borak, A.

Mukherjee, A.

Rangan, V.

Date

2017

Type

Conference Paper

Metadata

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Citation

Sarker, P. and Borak, A. and Mukherjee, A. and Rangan, V. 2017. Bond strength of fly ash geopolymer with CFRP fabric after exposure to high temperature, SMAR 2017 - Fourth Conference of Smart Monitoring, Assessment and Rehabilitation of Civil Structures: SMAR 2017.

Source Title

http://www.smar-conferences.org/smar/SMAR_2017_Proceedings/

Source Conference

SMAR 2017 - Fourth Conference of Smart Monitoring, Assessment and Rehabilitation of Civil Structures

Additional URLs

http://www.smar-conferences.org/smar/SMAR_2017_Proceedings/

School

School of Civil and Mechanical Engineering (CME)

URI

http://hdl.handle.net/20.500.11937/66166

Collection

Curtin Research Publications

Abstract

ABSTRACT: This paper presents a study on the bond strength of fly ash geopolymer as an alternative to epoxy bonding agent for carbon fibre reinforced polymer (CFRP) fabrics subjected to high temperature. CFRP fabrics of 300 mm bonded length were tested for bond strength by direct shear tests after three hours of exposure to elevated temperature at 100 oC, 200 oC and 400 oC. It was found that the bond strength of fly ash geopolymer was less than that of the epoxy bonding agent at room temperature. However, the bond strength of epoxy was completely lost by the exposure to heat at 200 oC, while the geopolymer retained its full bond strength up to the maximum testing temperature of 400 oC. This shows the superior bonding performance of geopolymer with CFRP fabrics as compared to that of conventional epoxy bonding agent when exposed to high temperature.