Long-term flexural cracking control of reinforced self-compacting concrete one way slabs with and without fibres

Farhad Aslani, Shami Nejadi and Bijan Samali

Abstract

In this study experimental result of a total of eight SCC and FRSCC slabs with the same cross-section were monitored for up to 240 days to measure the time-dependent development of cracking and deformations under service loads are presented. For this purpose, four SCC mixes are considered in the test program. This study aimed to compare SCC and FRSCC experimental results with conventional concrete experimental results. The steel strains within the high moment regions, the concrete surface strains at the tensile steel level, deflection at the mid-span, crack widths and crack spacing were recorded throughout the testing period. Experimental results show that hybrid fibre reinforced SCC slabs demonstrated minimum instantaneous and time-dependent crack widths and steel fibre reinforced SCC slabs presented minimum final deflection.

Key Words

self-compacting concrete; fibre-reinforced self-compacting concrete; crack control; time-dependent; flexural cracking; deformations

Address

Farhad Aslani: Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, University of New South Wales, Australia Shami Nejadi: School of Civil and Environmental Engineering, University of Technology Sydney, Australia Bijan Samali: Institute for Infrastructure Engineering, University of Western Sydney, Australia

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