The purpose of this study is to estimate basic mechanical properties of steel fiber reinforced Alkali-Activated Slag(AAS) concrete. Principle variable is the fiber volume fraction: 0, 0.5, 1%. Two type cement composites were used: Steel Fiber Reinforced Concrete(SFRC) and AAS. Mechanical properties of AAS concrete and SFRC, including compressive strength, elastic modulus, flexural strength, splitting tension.