The most intense reflection of the inert quartz filler (26.4 • ) is similar for all samples. The main reflection of C 3 A at 33.2 • is reduced to varying degrees (highlighted in gray). C 3 A is almost completely consumed in the reference sample after 3 h. Furthermore, the reflection of C 3 A shows the highest intensity for the sample in the presence of Na 2 SO 4 , followed by NaCl and NaNO 3 .