The compressive strength of concrete is an important factor in mechanical properties. In most building structures, concrete strength is used to resist compressive forces and support the load placed on buildings. Compressive strength could be one of the basic measurements to evaluate the overall quality of concrete. Mindess et.al. (2003) states that the water/cement ratio (water/c) has a significant impact on the strength of concrete. The higher the water/c ratio, the lower the compressive strength. The lower the water/c, the higher the compression