Suitability of coir fibre as a raw material for geotextiles.

Abstract

Geotextiles are used in many geotechnical works as support in reinforcement structures. In practice geotextiles made of synthetic polymers such as polyester, polyamide and polypropylene are used. The synthetics are preferred because of their strength, extensibility and resistance to microorganisms when used in various applications usually in contact with soil particles. The natural geotextiles are expected to be less strong and less in durable while resistance to microorganisms is expected to be less than in synthetics. The suitability of jute in short-term functionality is fairly well established. The paper examines the feasibility of using coir geotextiles manufactured as a local cottage industry in geotechnical applications. The strength and extensibility parameters are comparable with those of synthetic polymers although the type of textile made of synthetic fibres differ significantly from the woven mat made of coir ropes. The moisture absorption character adds to the stability of using coir in geotechnical operations.