Earticle

This study performed to quantify material homogeneity in order to evaluate the properties of concrete by conducting ultrasonic pulse experiments and developing/applying homogeneity index algorithm. Parameters that can affect the homogeneity evaluation are recognized, and the homogeneity variation according to the influencing factors is investigated. In addition, the homogeneity variation according to compressive strength and age is calculated to check the material homogeneity sensitivity in the case of plain concrete and fiber-reinforced concrete. The experimental results of steel fiber reinforced concrete show that the calculated homogeneity is proportional to the compressive strength and age. In addition, the surface treatment of concrete for compressive strength measurement affects the homogeneity, and the moisture content also affects the homogeneity. These relationships can be clarified in future studies by conducting experimental and analytical studies considering various variables.