 Summary
In this research, the reactivity of the slags (as a substitute of clinker in the cement) is studied. This, in order to understand, more about the blast-furnace cements, also called CEM III and their hydration mechanisms. The studied slags are of different origin and ages. The interest of this PhD study resides in the fact that the different chemical and mineral compositions of the slag influence the mechanical and rheological compositions, the chemical reactivity and the porosity of concrete made with these CEM III-type cements. Besides, this work promotes the actual increasing use of this type of cement. Indeed, CEM III has different advantages: an increase of the structures durability, a decrease of the amount of CO2 through the substitution of clinker by slag and also better mechanical resistance at longer terms. |