Table 2 Semi-quantitative SEM–EDS micro-chemical analyses (wt%) of binder and lime lumps for the HI calculation.
From: A new multi-analytical procedure for radiocarbon dating of historical mortars
TC26 | Lime lump | Lime lump | Lime lump | Binder | Binder | Â | Â |
|---|---|---|---|---|---|---|---|
SiO2 + Al2O3 + Fe2O3 | 10.0 | 11.1 | 17.5 | 17.6 | 12.6 |  |  |
CaO + (MgO) | 90.1 | 89.0 | 82.5 | 82.4 | 87.4 |  |  |
HI | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | Â | Â |
TC27 | Lime lump | Lime lump | Binder | Binder | Binder | Binder | Binder |
|---|---|---|---|---|---|---|---|
SiO2 + Al2O3 + Fe2O3 | 17.6 | 11.9 | 21.8 | 19.5 | 10.7 | 22.8 | 8.7 |
CaO + (MgO) | 82.1 | 88.1 | 78.2 | 80.5 | 89.3 | 77.2 | 91.3 |
HI | 0.2 | 0.1 | 0.3 | 0.2 | 0.1 | 0.3 | 0.1 |
