Effects of Coir Fiber on Self Compacting Concrete

Experimental investigation has been carried out to study the effect of coir fiber on Self Compacting Concrete. M20 grade concrete mix ratio of 1:1.42:3.10 was designed. The main objective of this study is to find appropriate percentage addition of super plasticizer with constant addition of 0.5% volume fraction of coir fiber. The amount of super plasticizer added is 0.40%, 0.60% and 0.80% of weight of cement. Coir fiber is added based on volume fraction of 0.5%. The addition of coir fiber decreases the workability; to impart workability super plasticizer is added. The various workability tests for Self-Compacting Concrete were conducted and their results were compared with Self Compacting Concrete limiting value. The compressive and split tensile strength tests were conducted on 7, 14 and 28 days. The test results shows that addition of 0.80% of super plasticizer satisfies the Self Compacting Concrete limiting value, with maximum increase in strength.