SHEAR STRENGTH OF LIGHTWEIGHT CONCRETE ONE-WAY SLABS | |
| Conference | 32nd Our World in Concrete and Structures (OWICs) - 2007 |
| Authors | Y. J. Kum*, National University of Singapore, Singapore T. H. Wee, National University of Singapore, Singapore M. A. Mansur, University Teknologi Malaysia, Malaysia |
| Handle | 100032033 |
| Key Words | Design, Foamed Concrete, Lightweight Concrete, One-Way Slabs, Shear, Tests |
| Abstract | The results of an exploratory test program conducted on reinforced one-way slabs to evaluate the shear performance of structural lightweight concrete (LWC) with or without coarse aggregates are presented in this paper. A total of sixteen shear critical slabs were tested under four-point loading. Major parameters considered include the type of LWC, that is, lightweight aggregate concrete (LWAC), lightweight aggregate-foamed concrete (LWAFC) and lightweight foamed concrete (LWFC) and shear span-to-effective depth ratio, a/d. Conventional normal weight concrete (NWC) was used as reference. Test results indicate that lightweight aggregate concrete closely mimics the response of normal weight concrete at service loads. However, LWC slabs, in general, failed at a lower ultimate load than normal weight concrete, foamed concrete being the weakest. Despite its weakness in shear resistance, analyses presented herein on the overall results have demonstrated that the structural applications of lightweight foam concrete are technically feasible. |
| Full Text |  100032033 |
| Link to this page | www.cipremier.com/100032033 |
