International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 01 | Jan 2024
p-ISSN: 2395-0072
www.irjet.net
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE. P. LALITHA , Dr .P . JYOTSNA DEVI PG STUDENT, PROFESSOR AND HEAD OF THE DEPARTMENT, DEPARTMENT OF CIVIL ENGINEERING, GAYATRI VIDYA PARISHAD COLLEGE FOR DEGREE AND PG COURESES (A) RUSHIKONDA, VISAKHAPATANAM. ----------------------------------------------------------------------------***-------------------------------------------------------------------------ABSTRACT: Processed Coconut fibre (coir) is one of the Natural fibers abundantly available in tropical regions, and is extracted from the husk of coconut fruit. The waste material obtained from the coconut fruit is utilized and used in constructions. The use of coconut fiber in concrete will reduce the massive amount of the waste produced and also increases the tensile properties in the concrete . Coconut fibre is cheap and has more resistant to thermal conductivity . The addition of coconut fibre significantly improved many of the engineering properties of the concrete like , toughness and tensile strength . It also has the ability to resist to cracking and spalling of concrete . From previous studies observed that mixing of coconut fibre in concrete a significant rise in tensile strength is observed and restraining the development of crack, Similarly the results were also obtained for each different volume fraction of 1%,2%,3%,4%,5% with different lengths of20,30,40, 50 mm and grade of concrete M20,M30,M40 AND M60 were used .Among all these the volume fraction of 2%,3%,4%,5% and length of 20,30,40,50mm gives the best results for improving the strength of concrete . By taking these reviews as reference ,the volume fraction of 4% and 5% with length of 30 and 40mm and M30 and M60 grade of concrete were considered in this study. KEYWORDS: Fiber reinforced concrete, coconut fiber ,compression strength, tensile strength, torsion and toughness.
INTRODUCTION: Coconut fiber is treated as natural fiber before using in concrete. Coconut fiber is extracted from the outer shell of the coconut. There are two types of coconut fibers, brown fiber extracted from matured coconut and white fibers extracted from immatured. These coconut fibers are easily available in large quantity and also cheap. The use of coconut fiber can lead to improvement in properties of cement concrete in addition providing a proper solution for disposal of natural waste. In most cases , this coconut fibers are dumped as agricultural waste, so can be easily available in large quantities hence making them cheap. Coconut fiber , obtained from unripe coconut fruit is a natural fiber . The coconut is steeped in hot sea water and subsequently, the fibers are removed from the shell by combing and crushing .The coconut husk is composed of 75% fiber and 25% pith with high lignin and phenolic content . Due to the high lignin content , Coconut fiber is very elastic ,durable , and resistant to rotting When coconut husk are being processed , The coco dust is separated from the fibre . The long fibre of coir extracted from the coconut husk are used in manufacture of industrial products , For example mats and ropes making. The advantages of using such fibers provides generally elimination of the need for waste disposal in landfills . Utilization of these fibers in concrete leads to an effective solid waste management technique .
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