Particle size distribution in suspension for the creation of repair and restoration compounds
Abstract
Particle size distribution in suspension for the creation of repair and restoration compounds
Incoming article date: 20.11.2025This article presents the results of a study of the particle size distribution (PSD) in aqueous suspensions of eight natural and artificial minerals, including gypsum, limestone, marl, shale, anhydrite, dolomite, bentonite, and cement. The analysis was conducted using sedimentation in a particle size range from submicron to hundreds of micrometers, revealing significant differences in distribution depending on the mineralogical composition. A study of the particle size distribution revealed that samples with narrower distributions, such as anhydrite and bentonite, exhibit high stability and predictable kinetic characteristics, while the polymodal distributions of marl and cement suggest their suitability for use as fillers. The obtained data allow us to predict their influence on the properties of binders, including hydration rate, packing density, pozzolanic activity, and tendency to aggregation. The results may be useful for optimizing technological processes in the development of repair and restoration compounds and binders.
Keywords: particle distribution, size, suspension, binders, sedimentation, colloidal stability, repair and restoration compounds, median, distribution width