TITLE:
Study and Modeling of the Grinding Kinetics of Reactive Rocks in a Cement Laboratory
AUTHORS:
Seke Vangu Max, Pongo Pongo Charles, Pongo Pongo Kalang Hochéà, Musuamba Kabengele Nathalie, Kisonga Manuku Eric, Mungyeko Bisulandu Baby-Jean Robert
KEYWORDS:
Cementitious Materials, Blaine, Grindability, Modeling, Rittinger, Van Der Waals
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.11 No.6,
November
8,
2023
ABSTRACT: This article focuses on the study of crushing rocks that can replace clinker in low-carbon cement. A laboratory ball mill was used, varying the duration of the grinding. It has been observed that the specific surface of rocks changes in a nonlinear way with time, due to the agglomeration of particles. To this end, a mathematical model describing this evolution, which considers van der Waals forces, has been proposed. And finally, the model was adjusted regarding the experimental data. The results found show that the present model is more accurate than the classical models, because it considers the agglomeration phenomenon.