Journal of Engineering Science and Technology Vol. 14, No. 3 (2019) 1482 - 1496 © School of Engineering, Taylor’s University 1482 MECHANICAL AND DURABILITY PROPERTIES OF COIR FIBRE REINFORCED CONCRETE ADEWUMI JOHN BABAFEMI 1, *, JOHN TEMITOPE KOLAWOLE 1 , OLADIMEJI BENEDICT OLALUSI 2 1 Department of Building, Obafemi Awolowo University, Ile-Ife, Nigeria 2 Department of Civil Engineering, Stellenbosch University, South Africa *Corresponding Author: [email protected] Abstract The need to use sustainable materials for construction is growing. This study investigated the effect of incorporating 0.5 and 1% coir fibre content on the workability, density, compressive strength, splitting tensile strength, and durability of concrete. The splitting tensile strength was determined at 7, 14 and 28 days while the compressive strength was determined up to 56 days following relevant code procedures. The durability of coir fibre reinforced concrete was investigated by subjecting hardened cube specimens to 1, 3 and 5% magnesium sulphate solutions for 28 and 56 days after curing in water for an initial period of 28 days. The compressive strength loss and mass losses were determined with reference to the control mixes. The incorporation of coir fibre in concrete reduced its workability and seemed to have no effect on the density. Coir fibre slightly improved the compressive and tensile strength of concrete, especially at 0.5% while its resistance to sulphate attack was only improved at 1% coir fibre content. Keywords: Coir fibre, Compressive strength, Durability, Fibre reinforced concrete, Tensile strength.
MECHANICAL AND DURABILITY PROPERTIES OF COIR FIBRE REINFORCED CONCRETE
Jun 15, 2023
The need to use sustainable materials for construction is growing. This study
investigated the effect of incorporating 0.5 and 1% coir fibre content on the
workability, density, compressive strength, splitting tensile strength, and
durability of concrete. The splitting tensile strength was determined at 7, 14 and
28 days while the compressive strength was determined up to 56 days following
relevant code procedures.
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The durability of coir fibre reinforced concrete was investigated by subjecting hardened cube specimens to 1, 3 and 5% magnesium sulphate solutions for 28 and 56 days after curing in water for an initial period of 28 days. The compressive strength loss and mass losses were determined with reference to the control mixes. The incorporation of coir fibre in concrete reduced
its workability and seemed to have no effect on the density. Coir fibre slightly improved the compressive and tensile strength of concrete, especially at 0.5% while its resistance to sulphate attack was only improved at 1% coir fibre content.
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