Abstract
Because of the high amount of concrete used everywhere in the world, and the big necessity of aggregates and cement the science community has to come with a solution for this problem. The article presents a study of self compacting concrete using recycled aggregates, in this case brick dust, for satisfaction of mechanical properties. Self compacting concrete seems to be the best solution to stop pollution when we talk about concrete because it doesn’t need compacting technologies and offers the opportunity to add to it in limited dosage recycled aggregates or fly ash as substitution of a small portion of cement. The study presents a number of 18 recipes who are using brick dust divided in three categories according to the dimensions of particles such as: 0-4mm; 4-8mm; 8-16mm. The brick dust is replacing the same category of aggregate in three separate percentages: 10%, 20% and 30%. The replacement of cement with fly ash has also been done for the 18 recipes in two percentages: 5% and 10% and the results for fresh state and mechanical properties and density is discussed.