Freeze–Thaw and Salt Crystallization Durability of Silica Acid Ester Consolidated Porous Limestone from Hungary

The durability of consolidated highly porous limestones was tested after salt and freeze–thaw cycles. Three limestone lithotypes that were commonly used in construction the Central-European region during previous centuries selected for tests. Specimens Miocene with four different types ethyl silica-based consolidants (KSE 100, KSE 300, 300 E, HV). After consolidation, samples exposed to freeze thaw cycles crystallization Water saturation under atmospherically pressure, capillary water absorption splitting tensile strength measured on treated untreated assess change attributed consolidation open porosity mechanical parameters. increase medium-grained higher than fine-grained lithotypes. effect treatment very terms pore-size distribution as obtained by Mercury intrusion porosimetry (MIP). Untreated subjected 10 sodium sulphate (EN 12370) 12371) Experiments concluded addition initial conservation, modified pore structure is crucial factor evaluate long-term efficiency stone conservation.