INTRODUCTION The environmental concerns, including dwindling crude oil resources, high oil prices, pollution, greenhouse CO2 emissions, and toxicity in the environment, married to societal pressures towards sustainable development are currently making countries around the world turn to biomass as a renewable resource for a variety of products: fuels, lubricants, chemicals, polymers, fibers, neu...

Natural fibers, including mineral and plant fibers, are increasingly used for polymer composite materials due to their low environmental impact. In this paper, thermographic non-destructive inspection techniques were used to evaluate and characterize basalt, jute/hemp and bagasse fibers composite panels. Different defects were analyzed in terms of impact damage, delaminations and resin abnormal...

Unwanted sound reflection can create acoustic discomfort and lead to problems of speech comprehensibility. Contemporary building techniques enable highly finished internal walls resulting in sound reflective surfaces. In contrast, sustainable construction materials using natural and vegetal materials, are often more porous and absorptive. Hemp shiv is used as an aggregate and when mixed with li...

Cannabis sativa L. is an annual herbaceous crop grown for the production of long extraxylary fibers, the bast fibers, rich in cellulose and used both in the textile and biocomposite sectors. Despite being herbaceous, hemp undergoes secondary growth and this is well exemplified by the hypocotyl. The hypocotyl was already shown to be a suitable model to study secondary growth in other herbaceous ...

The agricultural industry is one of the main economic contributors in developing countries, especially tropical regions. Extensive land clearing has led to severe erosion within watersheds, which increases vulnerability water catchments natural disasters, such as floods. Cellulosic fibers, jute, sisal, kenaf, hemp, and coir, are gaining increasing worldwide attention for their potential applica...

Over time, many researchers have conducted studies to investigate the construction sector by assessing those related energy, environmental and economic problems find ways improve global sustainability. The on use of natural fibers: wheat, date palm hemp as an insulating material in concrete panel yields been through ten previous research studies. In market, there are various types thermal insul...

The chemical composition of several non-woody plant fibers (bast fibers from flax, hemp, kenaf, jute; leaf fibers from sisal, abaca and curaua; and giant reed), which are used as raw materials for pulp and papermaking, has been evaluated. Particular attention was paid to the composition of the lipophilic compounds and the structure of the lignin polymer since they are important components of th...

The final features of natural fiber composites (NFCs) depend on the integrated characteristics of their constituents. In the industry today, natural agro waste fibers are evaluated using a limited number of criteria. In this work, a combined multi-criteria evaluation stage technique (CMCEST) is introduced as a simple efficient systematic indicator to enhance evaluation of the available natural ...

Abstract Polypropylene, steel, and carbon fibers are used to increase the ductility toughness of concrete materials. In recent years, studies on use natural have increasingly continued. Among fibers, hemp fiber has highest tensile strength value. The aim this study was discuss present results experimental cement-based shives mortars. Another is in construction field by using more economical fib...