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Tear tests of glass fibre reinforced polymer skin spray-on liner

Conference Paper


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Abstract


  • Current research into strata support automation in coal mine roadways requires

    development of a strong, tough and effective skin support that can be applied remotely. To investigate

    suitability of a glass fibre reinforced polymeric thin Spray-On Liner (TSL) numerous small and large scale

    samples were tested. These tests include; the tear load due to the lateral movement of TSL to fail in tear

    through the bolts installed in underground roadway roof, and the ‘truser tear’ due to the differential

    movement of the supported strata. The laboratory experiments suggested that a polymer based TSL can

    withstand substantial tear loads and despite the tear failure, the remaining TSL sheet can maintain strata

    support effectively. The tear strength tests were conducted using a standard 22 mm diameter steel bolt

    tearing the 5 mm thick polymer sheets reinforced with two or three glass fibre layers. The trouser tear

    tests were conducted with two and three layers of glass fibre reinforcement. The bolt tear tests indicated

    load bearing capacities in the range of 7.4 to 13.8 kN depending on the amount of reinforcement, while

    the trousers tear strength ranged from approximately 0.4 to 1.1 kN.

Publication Date


  • 2013

Citation


  • Nemcik, J., Porter, I. & Baafi, E. (2013). Tear tests of glass fibre reinforced polymer skin spray-on liner. Proceedings of the 2013 coal operators’ conference (pp. 170-175). Wollongong, Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2113&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/452/

Start Page


  • 170

End Page


  • 175

Abstract


  • Current research into strata support automation in coal mine roadways requires

    development of a strong, tough and effective skin support that can be applied remotely. To investigate

    suitability of a glass fibre reinforced polymeric thin Spray-On Liner (TSL) numerous small and large scale

    samples were tested. These tests include; the tear load due to the lateral movement of TSL to fail in tear

    through the bolts installed in underground roadway roof, and the ‘truser tear’ due to the differential

    movement of the supported strata. The laboratory experiments suggested that a polymer based TSL can

    withstand substantial tear loads and despite the tear failure, the remaining TSL sheet can maintain strata

    support effectively. The tear strength tests were conducted using a standard 22 mm diameter steel bolt

    tearing the 5 mm thick polymer sheets reinforced with two or three glass fibre layers. The trouser tear

    tests were conducted with two and three layers of glass fibre reinforcement. The bolt tear tests indicated

    load bearing capacities in the range of 7.4 to 13.8 kN depending on the amount of reinforcement, while

    the trousers tear strength ranged from approximately 0.4 to 1.1 kN.

Publication Date


  • 2013

Citation


  • Nemcik, J., Porter, I. & Baafi, E. (2013). Tear tests of glass fibre reinforced polymer skin spray-on liner. Proceedings of the 2013 coal operators’ conference (pp. 170-175). Wollongong, Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2113&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/452/

Start Page


  • 170

End Page


  • 175