Mechanical properties and durability analysis of coir fibre reinforced composites – State of art report

• Main Authors: Chandrasekaran, Raj Govind, Gudimella, Ramakrishna
• Format: Conference Proceeding
• Language: English
• Subjects: Cement reinforcements; Coir; Durability; Failure mechanisms; Fiber composites; Fiber reinforced cements; Fiber reinforced concretes; Fibers; Heat generation; Mechanical properties; Reinforced cements; Reinforcing steels; Water absorption
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0139778

In the present era of concrete innovations, natural fibres hold an important role due to their abundance in tropical countries like India and their eco-friendly nature. They out-shadow the synthetic or steels fibre with its cost-effectiveness, environmental friendliness, unhazardous production, nil heat generation to medium, and many property-oriented benefits. Amongst natural fibres, coir fibres dominate the local availability and have better mechanical and durability properties, hence the comparative analysis on former parameters of coir fibre reinforced cement composite (CFRCC), along with the general failure of natural fibre and countermeasures are reported in this paper. CFRCC with high compressive, tensile, and bond strengths and also least water absorption of cement medium at saturation made to take over the rest of local coastal natural fibre reinforced concrete. CFRCC was found to possess a predominant strength under impact loadings due to the hard nature and appreciable setup of constituent materials in the coir fibre. Here, is an overview of the mechanism behind attaining corresponding strength studied on the elementary level. Further, the predominant terminologies and models of mechanical behaviour for understanding material performance without mathematical details are discussed. Additionally, the general failure mechanism of natural fibre with specific improvement based on coir fibre was dealt with in the work. References from the authors of various time scales included as a means of comparing durability enhancement methods are discussed in this work. CFRCC held the appreciable improvement of the properties amongst the other modified natural fibre reinforced cement composite, including the durability aspects.