Concrete is a secure building material due to outstanding characteristics of which used in different constructions all over the world. A number of scientists examined the use of different waste products in building material manufacture in order to economize the input of energy and natural resources. On the basis of conducted tests, we can maintain that after 28 days of consolidation, the strength of concrete in the process of manufacturing of which the coarse aggregate of concrete waste was used is close to the strength of concrete produced using natural coarse aggregate. 

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