It can be easily observed that 4 % volume fraction of coconut fibres had given the highest mechanical properties amongst all tested volume fractions. With 4 % volume fraction, the authors also studied the tensile strength of cement paste reinforced with different lengths of coconut fibres. The reported tensile strengths were 2.3, 2.8 and 2.7 MPa with lengths of 25, 38 and 50 mm, respectively. Thus coconut fibres with a length of 38 mm and a volume fraction of 4% gave maximum strength of cement paste composite.