Coconut Fiber Reinforced Cement-Based Composites

Abstract:

The aim of this research was to study the properties of cement reinforced with coconut fiber. The coconut fiber addition that uses in this research were 5, 10 and 15% by weight of cement. The cement paste and coconut fiber were mixed together and packed into an iron mold. Then, the specimens were kept at room temperature for 24 hours and were moist cured in the water bath at 3, 7 and 28 days. After that, the physical properties i.e. water absorption and density were examined. The microstructure was characterized by scanning electron microscopy (SEM). The results showed the surfaces of the coconut fibers were not smooth, spread with nodes and irregular stripes, which is covered with substances and other impurities. The compressive strength and flexural strength were also investigated. From the results, the mechanical properties were decreased with increasing coconut fiber content due to reducing density and higher porosity and water absorption compared to non-fiber cement paste and physical properties of fiber had been flexibility and smoother caused poor binding with cement. The best compressive strength and flexural strength results were obtained with the percentages of coconut fiber as 5% which value as 26.67 N/mm² and 5.08 N/mm² respectively.

• Periodical: Solid State Phenomena (Volume 302)
• Pages: 101-106
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.302.101
• Online since: April 2020
• Authors: Siriphorn Rabma, Suparut Narksitipan, Nittaya Jaitanong*
• Keywords: Cement, Coconut Fiber, Composite Materials

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