EVALUATION OF AGRICULTURAL BY-PRODUCT NATURAL FIBERS FOR THE DEVELOPMENT OF SUSTAINABLE THERMAL INSULATION COMPOSITES

Abstract

To satisfy expanding economic and sustainability needs, there is an increasing demand for cutting-edge novel materials in the building sector. Natural fibers are a viable option for creating sustainable constructions as they are less expensive to produce than synthetic fibers and have better mechanical and thermal insulation properties. In addition, natural fibers are accessible, inexpensive, and have no impact on the environment, which makes them an appropriate green material option. While certain natural fibers, like kenaf or wood fiber, are somewhat commercialized, others are still being researched and are just in the early stages of development. The main goal of this study is to perform a comprehensive research on acceptable natural fibers for the building sector from agricultural by-products using multivariable analysis including analytical hierarchy approach, and a multi-criteria decision analysis. Analysis of the existing literature was done in comparisons according to the following criteria: availability, cost, modulus of elasticity, moisture content, compressive strength, morphology, and thermal conductivity. The study includes various natural fibres, while agricultural byproducts received special consideration because these preferences decrease the effects of disposal and transportation, respectively. Based on analysis, reed, banana and bagasse were proved to be the most favourable natural fibres for incorporation in development of green materials for the building industry.