Mechanical Behaviour of Normal Concrete using Fibre of Pine Tree Needle Leaves

M O M Mashri,Civil Engineering Department, Faculty Of Engineering, Elmergib University, Al-Khums (Libya) ,Otman M M Elbasir,Zainal Arifin Ahmad, ,Megat Azmi Megat Johari*,M.J.A Mijarsh

doi:10.35940/ijeat.c2173.0210321

M O M Mashri, Civil Engineering Department, Faculty Of Engineering, Elmergib University, Al-Khums (Libya) + Show 5 more

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https://doi.org/10.35940/ijeat.c2173.0210321

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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.

Highlights

Pines are the most prevalent species in the Pinaceae family, and 109 species are recognized and contribute to forest systems and are widely distributed in the Northern Hemisphere [1]. they are widely spread, from tropical areas to northern areas in America and Eurasia
Ordinary Portland cement (OPC) complying with the specifications of ASTM [12] was used as the main binder, while, the fibre of pine tree needle leaves was used at 1% and 2% of the total weight of the mixture
The results show an increasing value of flexural strength with an increase in the quantity of brown pine fibre (BPF) in the samples while the strength decreases with an increase in the amount of green pine fibre (GPF) in the concrete

Summary

Introduction

Pines are the most prevalent species in the Pinaceae family, and 109 species are recognized and contribute to forest systems and are widely distributed in the Northern Hemisphere [1]. they are widely spread, from tropical areas to northern areas in America and Eurasia. Pines are the most prevalent species in the Pinaceae family, and 109 species are recognized and contribute to forest systems and are widely distributed in the Northern Hemisphere [1]. They are widely spread, from tropical areas to northern areas in America and Eurasia. In Africa, there are areas close to the Mediterranean in Central America and China, and there are 43 species in Mexico [2,3]. On that, these trees are produced in some waste such as leaves, various agro-industrial sectors [4-5] that, through its ccumulation in landfills and unregulated burning, generates serious environmental and social problems. Revised Manuscript received on January 25, 2021.

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