Nowadays, the construction industry has been thinking more and more about sustainability, seeking to make the technologies offered nowadays walk along with practices that have the least impact on the environment. The main purpose of this project was to evaluate the replacement of the small aggregate (sand) by the saw dust in a sustainable concrete. In this line of reasoning, cylindrical concrete proof bodies were carried out with different levels of substitution of the aggregate, 5%, 10%, 15% and 20%, in an attempt to analyze the effects caused by the sawdust on the properties of the concrete, and, in addition, to verify the new results of resistance of the concrete with substitution of the sand. The results of the compression resistance tests showed that concrete shafts with aggregate substitution content of 15% and 20% did not meet the requirements of NBR 8953 (ABNT, 2015), which considers a characteristic compressive strength of at least 20 MPa for concrete for structural purposes. With regard to workability, the results showed that besides conventional concrete, only the substitution traits of 5% and 10% showed good numbers, once again the other traits did not obtain the expected results for structural concrete. The results show that the smaller the substitution of the small aggregate by the sawdust is, the greater the resistance to the compression of the concrete. The same goes for the workability of concrete.