Figure 1

Three-point bending strength of weak dolomitic lime mortar (laboratory specimens, average of 3 specimens) before and after treatment with CaLoSiL nanosols: 0 = untreated, 1–1: Calosil E25 (3 applications), 2–1: E25, diluted with ethanol, increase of concentration during 6 applications (5/7.5/10/12.5 15/25 g/L), 5–1: E50 diluted with acetone and ethanol (60%/40%), increase of concentration during 5 applications (5/12.5/12.5/25/25 g/L), 6–1: NP25, diluted in n-propanol (12,5 g/L) + HPC-gel, 6 applications, 7–1: E25 + Micro 100 + 1 w/w, 3 applications.