Figure 3

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).
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).