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The effect of PVA (polyvinylalcohol) fiber and carbon fiber addition on the mechanical properties of the fiber reinforced cement was studied. The experimental variations were fiber length (3, 6, 9mm) and fiber weight fraction (0.25, 0.5, 0.75, 1.0wt%). The compressive, tensile and flexural strength of the PFRC (PVA fiber reinforced cement) and CFRC (carbon fiber reinforced cement) tend to increase with the addition of the fiber. The compressive strength of PFRC was the highest when the length of PVA fiber was 3mm, and that of CFRC was the highest when the length of carbon fiber was 6mm. The tensile and flexural strength of PFRC and CFRC were increased with increase of the fiber length and fiber content.