Clay brick generated from construction project sites is usually delivered to landfills for disposal and thus they can damage environment. The use of crushed clay brick can solve the environmental problem. This paper presents the possible use of crushed clay brick as a construction material. This new material gathered from some construction project sites in Iran is used as 100% aggregate in the production of concrete. The results indicated that the crushed clay brick reduced the unit weight and compressive strength of concrete, and increase the water absorption value. This new concrete can be used in non-structural products.