Strength behaviours of biomass fiber-reinforced concrete slab

Chai , Teck Jung and Lee , Yee Loon and Tang , Hing Kwong and Koh , Heng Boon Strength behaviours of biomass fiber-reinforced concrete slab. In: The International Conference on Civil and Environmental Engineering Sustainability (IConCEES 2011), 3-5 April 2012, Johor Bahru, Malaysia.

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Abstract

This paper investigates the compressive strength and flexural strength of biomass fibre-reinforced concrete slab. The main objective of this study is to examine the effect of biomass aggregate and fibre glass on the concrete slab strength. The biomass aggregate is used to replace the natural aggregates. A total of 36 slab samples (250 mm x 600 mm x 50mm thick) and 36 numbers of 150 mm cube samples containing 0%, 30%, 60% and 100% biomass aggregate were prepared. The Eclass fibre and Supracoat SP800 were added to increase the strength and to achieve the required workability. All the samples were cured in water with room temperature and tested at the age of 7, 14 and 28 days respectively. The result showed that cube specimens containing 30% biomass aggregate achieved minimum strength for structural use of 15 MPa at 28 days. The flexural strength for slab specimens containing 30% biomass aggregate, Supracoat SP 800 and fibre glass gained higher strength compared with control specimens. The 100% biomass slab achieved 88% of the control specimen strength. The workability is between 150 mm to 170mm slump which can become self-compacting biomass aggregate concrete. The density of the specimens was reduced 20% for cube and 28% for slab compared with control specimens. From the finding, it can be concluded that the biomass aggregate has good potential as aggregate replacement in slab construction combine with the use of glass fibre and superplasticizer. However, more research needs to be carried out to verify it.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:biomass aggregate; compressive strength; flexural strength; fibre-reinforced; self-compacting
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
ID Code:2543
Deposited By:Normajihan Abd. Rahman
Deposited On:06 Nov 2012 14:21
Last Modified:06 Nov 2012 14:21

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