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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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 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%