Paper Title
Comprehensive Study Effect Steel Waste Into Mechanical Properties Of Concrete

Abstract
Concrete is one option as a structural material in building construction. Improved climate change is happening requires an innovation in the world of construction. In order to create a concrete constituent materials are friendly to the environment, one way to use the waste production of steel called the PS Ball. This study aims to determine the effect of the use of PS Ball on concrete compressive strength and flexural strength of concrete. The method used in this study is replacing sand with PS Ball with the percentage of 0-100% and using the PS Ball as filler (filler) with the percentage of 0-100% is used in the concrete matrix, either for testing or testing press bending. Based on the results obtained by analysis concluded that PS Ball can be used as filler and sand replacement material in the concrete mixture. This can be seen in the concrete matrix obtained, that the use of PS Ball can enhance the compressive strength and flexural strength of the concrete Keywords- Compressive strength, Concrete, Flexural strength, Precious Slag Ball , Steel waste