Javad karimi - Ms. of structure engineering, Razi University, Kermanshah, Iran
Mohsen Ahmadvand - Ms. of structure engineering Malayer Branch, Azad University, Malayer, Iran,
M. Nilly - Assistant Professor, Department of Civil Engineering, Bu Ali Sina University, Hamedan, Iran,

According to past research and empirically, concrete production will be more profitable using natural stone materials. On the other hand, the strength of this concrete is less than the concrete resistance of broken stone materials. So in this project, we are looking to know how much and in what conditions we can use broken stone materials to make concrete. And whether for any concrete section, the use of broken stone materials can have the best effect or, in certain circumstances, we can use natural stone materials. This article studies the effects of fracture of aggregates separately and simultaneously with the change in the type of cement and the ratio of water-to-cement (W/C) on compressive strength, indirect tensile strength and bending strength of concrete.

fracture percentage, aggregate, cement type, concrete strength, water-to-cement ratio