STRENGTH PROPERTIES OF COIR FIBER CONCRETE

The rising cost of construction material is a matte r of concern. The reason for increase in cost is high demand of concrete and scarcity of raw mate rial. Hence the concrete technologists are researching on alternative materials in the construction world. In this study, M 20 grade of concrete was produced by adding coconut fiber (coir). Forty five cylinders were casted and their split tensile strength and workability’s were evaluated at 7, 14 and 28 days. The workability and tensile strength of concrete increased to some extent as the coir in creased. Concrete produced by 1%, 2%, 3%, 4% & 5% addition attained 28 days tensile strength of 2. 68, 2.90, 3.11, 3.25, 2.33 respectively. These results showed that Coir Fiber Concrete can be used in reinforced concrete construction. Its utilization is eco-friendly.