Ingredient | Ingredient content, % of mass | |
---|---|---|
Limestone B | Limestone T | |
LOI | 41.7 | 42.7 |
SiO2 | 4.58 | 1.4 |
Al2O3 | 0.75 | 0.4 |
Fe2O3 | 0.34 | 0.5 |
CaO | 52.43 | 53.2 |
MgO | 0.66 | 1.5 |
SO3 | 0.12 | 0.02 |
Cl- | 0.022 | 0.007 |
Ingredient | Ingredient content, % of cement mass | |||
---|---|---|---|---|
CEM I 42.5R NA | CEM I 52.5R | CEM I 42.5 R “O” | CEM I 42.5N SR5/NA | |
SiO2 | 20.55 | 20.65 | 19.9 | 21.17 |
Al2O3 | 4.67 | 5.13 | 6.2 | 3.56 |
Fe2O3 | 2.8 | 2.61 | 2.7 | 3.23 |
CaO | 64.35 | 64.01 | 62.6 | 66.03 |
MgO | 1.18 | 1.49 | 1.5 | 0.74 |
Na20 | 0.18 | 0.16 | 0.33 | 0.19 |
K2O | 0.43 | 0.77 | 0.72 | 0.34 |
Na2Oeq | 0.46 | 0.67 | 0.8 | 0.41 |
SO3 | 2.79 | 2.21 | 2.6 | 2.55 |
Cl | 0.015 | 0.082 | 0.05 | 0.063 |
Property | Cement designation | |||
---|---|---|---|---|
CEM I 42.5R NA | CEM I 52.5R | CEM I 42.5R “O” | CEM I 42.5N SR5/NA | |
Density [g/cm3] | 3.09 | 3.07 | 3.07 | 3.11 |
Volume constancy [mm] | 0.4 | 0.3 | 0.2 | 1 |
Setting time [min] | 191 | 167 | 183 | 165 |
Blaine’s specific surface [cm2/g] | 3950 | 4917 | 4390 | 3360 |
Phase content, % of cement mass | ||||
---|---|---|---|---|
Phase | CEM I 42.5R NA | CEM I 52.5R | CEM I 42.5R “O” | CEM I 42.5N SR5/NA |
C3S | 62.43 | 64.12 | 60.65 | 57.51 |
C2S | 12.16 | 11.18 | 11.62 | 17.62 |
C3A | 7.64 | 9.18 | 11.87 | 3.98 |
C4AF | 8.51 | 7.93 | 8.21 | 9.82 |
CŜ2H | 4.74 | 3.76 | 4.42 | 4.34 |