Analysis of the mechanical properties of mortar made with blast furnace slag and calcined clay aggregates

الملخص EN

The main objective of this research is to investigate the possibility to substitute partially or completely the natural fine aggregate by the blast furnace waste (slag fine aggregate) and waste bricks (claimed clay fine aggregate) in relation to the weight of the dune fine aggregate at different proportions (0, 25, 50, 75 and 100 %).

The effects of blast furnace slag aggregates (slag fine aggregate) and waste bricks (claimed clay fine aggregate) on the density, workability and mechanical properties of the mortars were analyzed.

In the same way for this study, the physical and chemical properties of dune fine aggregate, blast furnace waste (slag fine aggregate), waste bricks (claimed clay fine aggregate) and cement were investigated.

After crushing, the artificial fine aggregate (blast furnace slag and claimed clay fine aggregate) was sifted in order to use it as fine aggregate.

The results obtained show that at a mass of slag fine aggregate and claimed clay fine aggregate 25 % in relation to the weight of the natural fine aggregate, the mortar tested has an acceptable mechanical strength.

The reuse of this recycled material (blast furnace waste and waste bricks) in the industry would contribute to the protection of the environment.