No-fines concrete is a form of lightweight porous concrete, obtained by eliminating the sand from the normal concrete mix. The main advantages of this type of concrete are density, thermal conductivity, drying shrinkage are very low, This report presents the results of an investigation to calculate the performance characteristics of NO-fines concrete mixes with sufficient coir fiber in cement paste. No fine Concrete mix with different % of coir fiber was prepared to find an optimum mix yielding the highest compressive and split tensile strength. It was found that the strength of no-fines concrete is lower than that of normal weight concrete, but sufficient enough for secondary structural use. Due to presence of large number of voids, NO-fines concrete has large range of permeability properties which gives it many application for drainage purposes.

Keywords : No fines concrete, Coir ,Compressive Strength ,Tensile Strength etc.