Figure 2

Three-point bending strength of weak gypsum lime mortar (laboratory specimens, average of 3) before and after treatment with CaLoSiL nanosols: 0 = untreated, 1–6: E25 (3 applications), 1–7: IP25 (3 applications), 1–8: NP25 (3 applications), 2–2: E25, diluted with ethanol, increase of concentration during 6 applications (5/7.5/10/12.5 15/25 g/L), 3–2: E50 diluted with acetone and ethanol (60%/40%), 6 applications (12.5 g/L), 4–2: E50 diluted with acetone and ethanol (60%/40%), increase of concentration during 6 applications (5/7.5/10/12.5 15/25 g/L).