Mechanical and shrinkage properties of hybrid steel and polypropylene fibre reinforced concrete composite

Wan Jusoh, Wan Amizah and Syahrizal Ibrahim, Izni and Mohd Sam, Abdul Rahman and Sarbini, Noor Nabilah (2016) Mechanical and shrinkage properties of hybrid steel and polypropylene fibre reinforced concrete composite. Jurnal Teknologi, 78 (9). pp. 93-103. ISSN 0127-9696

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Abstract

An experimental study had been carried out to investigate the mechanical properties, expansion and shrinkage of fibre reinforced concrete composite (FRC). However, instead of using single type fibre of either steel (SF) or polypropylene (PPF), this study also combined the two types in one mix.The mechanical properties investigated in this study include compressive strength, splitting tensile strength and flexural strength. Three different FRC mix proportions and one normal concrete (control) were casted which includes (a) 75% SF, (b) 75% SF + 25% PPF, (c) 25% PPF, and (d) 0% fibre for control (PC). Meanwhile, the volume fraction, Vf for the FRC was fixed at 1.5% and the concrete strength was designed to achieve grade C60 at 28 days. The results show that the use of fibres in concrete decreased the workability of concrete. In addition, concrete mix with both SF and PPF produced the highest splitting tensile and flexural strengths by an increase of 75.9% and 86.5%, respectively as compared with the control. Furthermore, expansion and shrinkage of FRC was found to be less than the control. It can be concluded that the combined SF and PPF in concrete gives the most appropriate combination as regards to the highest flexural and splitting tensile strengths, and also reduced the shrinkage strain.

Item Type: Article
Uncontrolled Keywords: Shrinkage; mechanical properties; steel fibre; polypropylene fibre; fibre reinforced concrete
Subjects: T Technology > TH Building construction > TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
Divisions: Faculty of Engineering Technology > Department of Civil Engineering Technology
Depositing User: Miss Afiqah Faiqah Mohd Hafiz
Date Deposited: 26 Jan 2022 04:39
Last Modified: 26 Jan 2022 04:39
URI: http://eprints.uthm.edu.my/id/eprint/6070

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