Assessment of the ability of MGO based binary binders for the substitution of Portland cement for mortars manufacturing

This article evaluates the ability of a magnesia kiln dust (PC-8) and commercial calcined MgO (MCB100), combined with ground granulated blastfurnace slag (GGBS), as constituents binary M-S-H binders. Mortars pastes were manufactured their properties compared to those Portland Cement (PC). MgO-based mortars showed an increase in setting time higher fresh consistency. At earlier ages lower mechanical properties. 90 days both overcame PC flexural strength PC-8 + GGBS also its compressive strength. X-Ray Diffraction Thermogravimetry tests demonstrated presence pastes.