Distribution of the phases in the sample cured for six months. From left to right, the distribution maps integrate the contribution of all the identified phases, the amorphous phase, calcite, the C-S-H plus the calcite and the amorphous phase, and the ettringite, mullite, portlandite and quartz phases. Red values indicate a higher content of the phase in the distribution map. Black values indicate voids (Total map) and voids or absence of phase (all other maps). The typical ratio of counts for black values to red values is 0.2. Because all the maps were constructed from the number of counts integrated according to the procedure described in the Materials and methods section, they were scaled individually, and the sum of the colours for each map for the individual phases does not equal the colour of the total intensity map. The three slices were collected, from top to bottom, at vertical positions z0 (arbitrarily chosen in the sample), 10 µm below z0 and 20 µm below z0. As the beam size was 10 µm, the slices collected at z0 and z0 − 10 µm are thus adjacent in the sample, as are those collected at z0 − 10 µm and z0 − 20 µm. The white circle of 1.6 mm diameter corresponds to the limit of the sample.