The mechanical properties of steel-polypropylene fibre composites concrete (HyFRCC)

Ibrahim, Izni Syahrizal and Wan Jusoh, Wan Amizah and Mohd Sam, Abdul Rahman and Mustapa, Nur Ain and Sk Abdul Razak, Sk Muiz (2014) The mechanical properties of steel-polypropylene fibre composites concrete (HyFRCC). In: International Integrated Engineering Summit (IIES 2014), 1-4 December 2014, Universiti Tun Hussein Onn Malaysia, Johor.

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Abstract

This paper discusses the experimental results on the mechanical properties of hybrid fibre reinforced composite concrete (HyFRCC) containing different proportions of steel fibre (SF) and polypropylene fibre (PPF). The mechanical properties include compressive strength, tensile strength, and flexural strength. SF is known to enhance the flexural and tensile strengths, and at the same time is able to resist the formation of macro cracking. Meanwhile, PPF contributes to the tensile strain capacity and compressive strength, and also delay the formation of micro cracks. Hooked-end deformed type SF fibre with 60 mm length and fibrillated virgin type PPF fibre with 19 mm length are used in this study. Meanwhile, the concrete strength is maintained for grade C30. The percenta xcge proportion of SF-PPF fibres are varied in the range of 100-0%, 75-25%, 50-50%, 25-75% and 0-100% of which the total fibre volume fraction (Vf) is fixed at 0.5%. The experimental results reveal that the percentage proportion of SF-PPF fibres with 75-25% produced the maximum performance of flexural strength, tensile strength and flexural toughness. Meanwhile, the percentage proportion of SF-PPF fibres with 100-0% contributes to the improvement of the compressive strength compared to that of plain concrete

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:hybrid; steel fibre; polypropylene fibre; mechanical properties; composite concrete
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
Divisions:Faculty of Civil and Environmental Engineering > Department of Structural and Material Engineering
ID Code:6607
Deposited By:Mrs. Nurhayati Ali
Deposited On:04 Jun 2015 14:27
Last Modified:04 Jun 2015 14:27

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