STRUCTURAL PERFORMANCE EVALUATION OF CONCRETE REINFORCED WITH SPONGE GOURD (LUFFAAEGYPTIACA) FIBRE
Abstract
In today's society, engineers and researchers are driven by the desire for sustainable lightweight structures. They are constantly looking into other materials to make up for the problems with concrete buildings. To improve efficiency, composite materials or fibers are often mixed into the concrete base. The fiber makes the concrete particles stronger against different kinds of stress. The study aims to examine the structural characteristics of concrete that has been reinforced with sponge gourd fibre (SGF) and the objectives are to determine the fresh state and hardened properties of concrete reinforced with SGF, and know the optimum addition in order to make appropriate recommendation. Different percentages by weight of cement (0.2%, 0.4%, 0.6%, 0.8%, 1.0%, and 1.2%) of the sponge gourd fibre were incorporate in a total of 125 cube and cylinder samples measuring 150mm x 150mm x 150mm, and 200mmlong x 100mm daimeter respectively and 70 beam samples measuring 100mm x 100mm x 500mm. A total of 18 cube samples, 18-cylinder samples, and 10 beam samples of identical sizes were cast as the control mix. The samples were cast, cured, and tested on specific days to evaluate various parameters such as workability, density, compressive strength, and tensile strength. Results showed that workability reduces with increase in the SGF content, (ii) specimens without fibre are lower in density, specimens containing SGF up to 0.4% developed higher compressive and tensile strengths, the deflection was higher. It can be concluded that the use of SGF up to 0.4% by weight of concrete will results in better concrete.
KEYWORDS: Concrete, Fiber, Sponge gourd Fibre, concrete optimization
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