Mechanical Behaviour of Normal Concrete using Fibre of Pine Tree Needle Leaves
Mohamed O. M. Mashri1, Megat Azmi Megat Johari2, M. J. A. Mijarsh3, Zainal Arifin Ahmad4, Otman M. M. Elbasir5

1M. O. M. Mashri, School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang (Malaysia), and College of Technical Sciences-Bani Walid (Libya).
2Megat Azmi Megat Johari*, School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang (Malaysia).
3M.J.A.Mijarsh, Civil Engineering Department, Faculty of Engineering, Elmergib University, Al-Khums (Libya).
4Zainal Arifin Ahmad, Structural Materials Niche Area, School of Materials and Mineral Resources, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang (Malaysia).
5Otman M. M. Elbasir, High Institute of Science and Technology, Civil Engineering Department, Qaser bin Gashear (Libya).

Manuscript received on January 18, 2021. | Revised Manuscript received on January 25, 2021. | Manuscript published on February 28, 2021. | PP: 99-102 | Volume-10 Issue-3, February 2021. | Retrieval Number: 100.1/ijeat.C21730210321 | DOI: 10.35940/ijeat.C2173.0210321
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: This research was carried out to study the behaviour of concrete, specifically flexural strength, by incorporating two types of pine needle leaves (green, and brown) recycled as fibre reinforcement in the concrete. The other goal of the study is to compare the two types of fibre and determine the maximum proportion of fibre to be added in the normal concrete. OPC concrete with 0%, 1% and 2% pine needle leaves fibre (green, and brown) was prepared based on the total weight of the mixture. At an ambient temperature of 28 ± 2°C, the specimens were checked for flexural strength (FS). Laboratory test results based on short term investigation reveals that the flexural strength of concrete containing brown pine fibre (BPF) is higher than that of Green pine fibre (GPF), and also higher than normal (OPC) concrete. The optimum proportion of pine needle leaf fibre is the brown fibre (fallen leaves) to be added in the concrete as fibre is 1% by the total weight of the mixture, which gave a positive reaction from the test that was performed. 
Keywords: Brown pine fibre, Green pine fibre, Flexural strength, Density, Normal concrete.