Drying shirinkage of gunny fabric fibre (GFF) concrete

Md Noor, Nurazuwa and Ahmad, Mohd Hilton and Abd Hamid, Noor Azlina and Shahidan, Shahiron (2010) Drying shirinkage of gunny fabric fibre (GFF) concrete. In: 3rd Conference On Southeast Asia Natural Resources & Environment Management (SANREM 2010), 3-5 August 2010, Kota Kinabalu, Sabah.

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Abstract

Gunny sack is made from natural fiber which is flexible, has high tensile strength, low extensive and environmentally friendly. All these advantages gave potential to gunny to be utilized in concrete as fiber. This paper discussed the potential ofgunny fabric fiber (GFF) with size 1 cm and 4 cm as an additive fiber in concrete to improve drying shrinkage behavior. Drying shrinkage is the concrete long term behavior which could lead to crack problem. Three series of beam with size 500 mm x 100 mm x 100 mm were mix and batch according to Department of Environmental (DOE) and tested for 3, 7, 14, 28, 56 and 72 days. The series includes control mix, 1 cm GFF with addition of 1 %, 3% and 5%, and 4 cm GFF with addition of 1%, 3% and 5% in concrete. Fly ash was added 10% to all series of concrete mix as cement replacement. It showed the addition of 1% of 1 cm GFF gave the lowest drying shrinkage value compared with all other series. This series of mix has the potential as discrete fiber reinforcement to reduce the concrete shrinkage hence minimize the concrete crack.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:additive; DOE method; drying shrinkage; fiber reinforcement; fly ash
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Faculty of Civil and Environmental Engineering > Department of Material and Structure Engineering
ID Code:1843
Deposited By:Faizul Sahari
Deposited On:05 Oct 2011 09:54
Last Modified:05 Oct 2011 09:54

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