SISAL

About: SISAL is a research topic. Over the lifetime, 1878 publications have been published within this topic receiving 55528 citations.

Comparative experimental investigation of natural fibers reinforced light weight concrete as thermally efficient building materials

Abstract: The building insulation is one of the needed element or component in building construction; it protects the construction against heat leakage for saving energy. The current research work aims to utilize natural fibers in concrete and develop such type of environmentally friendly material that has better thermal insulation properties. Thermal conductivity test, scanning electronic microscope tomography (SEM) and microscopic images for interfacial bonding of fibers with concrete were performed for plain concrete and natural fibres light weight reinforced concrete (RC) samples. Thermo-gravimetric analysis (TGA) was performed to check the thermal stability of natural fibres RC. The compressive strength was also measured to investigate the mechanical cost at which thermal insulation is achieved. Thermal conductivity results showed that by increasing the percentage of natural fibres (Jute, Coconut, Sugar cane, Sisal, Basalt) in concrete the thermal insulation characteristics increased while compressive strength decreased. TGA indicated that Jute, Sugarcane and Basalt fibres RC have better thermal stability as compared with plain concrete up to 50 °C which is suitable for South Asian countries climate but Sisal and Coconut fibres reinforced samples have comparatively a bit lower thermal stability. However, at 2.5% mixing of coconut and jute we were able to achieve improvement in both compressive strength and thermal insulation.

Mechanical Properties of Natural Fibre (Banana, Coir, Sisal) Polymer Composites

Abstract: Natural fibres have been used to reinforce materials for over 3000 years. More currently they have been employed in combination with plastics. Many types of natural fibres have been investigated for use in plastics including flax, hemp, jute, sisal and banana. Natural fibres have the advantage that they are renewable resources and have marketing appeal. These agricultural wastes can be used to prepare fibre reinforced polymer composites for commercial use. Application of composite materials to structures has presented the need for the engineering analysis the present work focuses on the fabrication of polymer matrix composites by using natural fibres like coir,banana and sisal which are abundant nature in desired shape by the help of various structures of paterns and calculating its material characteristics(flexural modulus, flexural rigidity, hardness number,% gain of water) by conducting tests like flexural test, hardness test, water absorption test, impact test, density test, and their results are measured on sections of the material and make use of the natural fibre reinforced polymer composite material for automotive seat shell manufacturing.

Characterization of sisal/cotton fibre woven mat reinforced polymer hybrid composites:

Abstract: The present research work addressed the results of experimental investigation on the mechanical properties and free vibration behaviours of sisal/cotton fabric reinforced polyester hybrid composites. Influence of fibre content and changing layer pattern (CLP) on the mechanical properties and free vibration characteristics are analysed. Hybrid composites are fabricated with simple hand lay-up method followed by compression moulding process. Natural frequency and modal damping values of hybrid composites are analysed by experimental modal analysis. Mechanical properties of composites are measured according to ASTM standards. It is found that an increase in the lamina content in the composite increase the mechanical and damping properties. The maximum mechanical properties are obtained for 40% fibre volume fraction (Vf) in sisal and cotton direction. Maximum natural frequency is found at 40% fibre Vf. By CLP, mechanical properties and damping characteristics are found intermittence of sisal and cotton direct...