Effect of Enset Fiber Length on Mechanical Properties of Concrete

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Date

2021-02

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Addis Ababa University

Abstract

In light of the fact that natural fibers are used, since many centuries for different purpose at the beginning of civilization. They have been used for ropes, toughening of pots etc. Considering global environmental warming problems, research and innovation in natural fiber reinforced concrete has been rising rapidly at present. Interest is warranted due to the advantage of natural fiber compared to others, such as synthetic fiber, which includes low environmental impact and low cost and support their potential across a wide range of applications. Natural fibers are categorized in to two. Those are natural inorganic fibers like carbon Asbestos and so on and the other are the natural organic fibers likes coconut, palm, kenaf, jute, sisal, Enset, pine, sugarcane, bamboo etc. The natural fibers are investigated by a lot of particular researchers as construction materials that could be used in cement paste/mortar/concrete. Much effort has long been made to improve their mechanical performance in order to expand fiber capacities and applications. The present work is carried out to evaluate the compressive, tensile as well as flexural strength of concrete using enset fibers. Fiber length is the essential factor that influences the properties of fiber reinforced concrete. Hence the prediction of effective fiber length becomes important. Results on compressive strength, split tensile strength and flexural strength of concrete samples for quite a number of combinations are analyzed with the use of different fiber length. Fibers used with length of 10mm, 15mm and 20mm with constant percentage of 1.5% by weight had been used for the work. Natural fiber reinforced concrete is suitable for low-cost construction, which is very desirable for developing countries. Normal C -20 mixes was used for the study. It is observed that enset fiber length can affect significantly the mechanical properties of concrete.

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Keywords

Concrete, Enset Fiber

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