This work presents part of a study whose main objective is to observe the behavior of the physical and mechanical properties of the materials (raw material) and of products made for the civil construction from the precast concrete industry, such as concrete blocks and pavers for interlocking floors. Through the investigation, was identified the potential of using the concrete blocks waste of the production as aggregates added to the concretes utilized to produce pavers. Thus, it is expected that this work contributes as a basis for obtaining scientific and technical knowledge regarding the materials and procedures that must be adopted for the manufacture of pavers, allowing their production for commercialization.

The manufacturing process of concrete blocks has showed high production costs and high waste generation from their own manufacturing. This paper evaluates the viability of production of recycled concrete blocks using recycled aggregate from manufacturing process industry. This way, the aim of this experimental work was to evaluate the compressive strength, of munufactured concretes blocks using in replacement of natural aggregate the recycled aggregate (20% replacement by mass). The concrete blocks were produced with brazilian Portland cement (CP II F) and meassured for compressive strength in the age of 14 days. The results showed that the shape aggregate and porcentage replacement influenced the durability and compressive strength of the concretes.