Figure 3From: Consolidation of porous carbonate stones by an innovative phosphate treatment: mechanical strengthening and physical-microstructural compatibility in comparison with TEOS-based treatments Samples pore size distribution before and after treatment: Pore size distribution, open porosity (OP) and average pore radius r a of untreated, HAP-treated and TEOS-treated samples of Globigerina Limestone a) and Giallo Terra di Siena b). Back to article page