Determining the Particle Size Distribution and Specific Surface Area of Binder Components for Repair and Restoration Mortars
Abstract
Determining the Particle Size Distribution and Specific Surface Area of Binder Components for Repair and Restoration Mortars
Incoming article date: 20.11.2025Using sedimentation analysis, we studied the particle size distribution of natural binders (dolomite, limestone, marl, shale, gypsum, anhydrite, bentonite, and cement) used as repair and restoration mortars. We determined their particle size distribution, calculated their specific surface area, and proposed hypotheses regarding the influence of grinding on the reactivity of natural materials. It was noted that optimal dispersion promotes accelerated hardening, increased strength, and improved compatibility with historical materials, while excessive grinding can increase water demand and cause shrinkage deformations.
Keywords: repair and restoration compounds; specific surface area; particle size distribution; dispersion; dolomite; limestone; gypsum; bentonite; anhydrite; sedimentation analysis