TITLE:
Study the Critical Role of Admixtures in Cement Production: The Optimum State of Cassiterite (SnO2) Addition as a Natural Mineralizer-Oxide Influencing the Cement Properties
AUTHORS:
Ioannis Baziotis, Andreas Chandrinos
KEYWORDS:
Cement Properties, Cassiterite, Burnability, Hydration
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.1 No.4,
October
26,
2011
ABSTRACT: In this work we evaluate the role of a natural mineralizer-oxide like cassiterite (SnO2) on the cement properties. In particular, we study the effect of different quantities of SnO2 with 0.5, 1.0, 1.5 and 2.0 wt% on burnability of industrial raw mix by free lime evaluation. We obtain four datasets, with successive increase of temperature at 1250℃, 1350℃, 1400℃ and 1450℃. We study the produced cassiterite-added clinker with X-ray diffraction (XRD), thermal analysis (DTA) and scanning electron microscopy (SEM). Though, we characterize the new phases formed and whether, adding excess SnO2 is promote forms of C3S, C2S influencing the final quality of cement.