Structural behaviour of steel fibre reinforced concrete slabs with class L reinforcement

Tuladhar, Rabin, Lancini, Benjamin J., and Collister, Tony (2011) Structural behaviour of steel fibre reinforced concrete slabs with class L reinforcement. In: Proceedings of Concrete 2011: building a sustainable future, pp. 1-10. From: Concrete 2011: building a sustainable future, 12-14 October 2011, Perth, WA, Australia.

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Abstract

Welded wire mesh with low ductility (Class L) reinforcement is used in concrete ground slabs, footpaths, residential suspended slabs and footings for its ease in construction. The use of Class L reinforcement as a main tensile reinforcement in slabs, however, compromises the ductility of the concrete structure. With the low ductility achieved by Class L reinforcement, usual methods for analysis and design of concrete slabs at ultimate limit state are not valid. This study investigates the structural behaviour of a concrete slab reinforced with Class L reinforcement and steel fibres through the tests carried out on eight simply supported one-way slabs. The different types of steel fibres that were used were mill-cut fibre, hooked end fibre and twincone fibre. The experimental results showed that the ductility behaviour of the slab specimens with Class L reinforcement was improved with the inclusion of 40kg/m3 of twincone fibre. Slab reinforced only with Class L reinforcement failed with a single major crack, however, distribution of cracks were observed in the slab with Twincone fibre.

Item ID: 18453
Item Type: Conference Item (Refereed Research Paper - E1)
Keywords: concrete slabs, class L, ductility, steel fibre, reinforcement
Date Deposited: 10 Sep 2011 21:21
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090506 Structural Engineering @ 80%
09 ENGINEERING > 0905 Civil Engineering > 090503 Construction Materials @ 20%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 60%
87 CONSTRUCTION > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials @ 40%
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