Morteza Hassannejad - M.SC student in Construction Engineering and Management of Tabari Institute of Higher Education, Babol, Iran
Javad Berenjian - Assistant Professor and President of Tabari Institute of Higher Education, Babol,Iran.
Mohammad Javad Taheri Amiri - M.SC student in Construction Engineering and Management of Tabari Institute of Higher Education, Babol, Iran

Given the progress of the concrete technology and use of the high strength concrete (HSC), the transformation criterion designing the constructions and the strength of the material used will not be the only construction design criterion and some other considerations such as the tensile strength and the elastic hardness need to be taken account. In this research, among the parameters effective on the concrete properties, we investigate the effect of the aggregate type on the compressing strength property and the elasticity modules of the high strength concrete. In this direction, the concrete samples with the aggregate of Dolomite, Granite, Silica and limestone and with pettling and identical mixing design have been provided. In continuation, the results of the strength experiment in given ages have been presented for studying the characteristics of the tensile strength and elasticity modules in this concrete, the results have been shown that the aggregate type is very important in the strength features and the module elasticity in high-strength concrete but it‟s not very effective in the tensile strength.

aggregate type, the tensile strength, elasticity modules, high strength concrete