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Table 1 Pore size distribution: Pore alterations on HAP treated and TEOS treated samples

From: Consolidation of porous carbonate stones by an innovative phosphate treatment: mechanical strengthening and physical-microstructural compatibility in comparison with TEOS-based treatments

Sample OP% < 0.1 μm 0.1 μm < OP% < 1 μm OP% > 1 μm
GL-UT 2.1 9.3 25.2
GL-H 4.8 8.4 23.5
GL-T 2.5 3.3 22.5
GS-UT 2.3 2.2 17.0
GS-H 1.8 2.1 16.4
GS-T 1.3 2.7 13.5