White Cement
White Cement is identical to Grey Portland Cement except in colour. White Portland
Cement is used in combination with white aggregates to produce white concrete for
prestige construction projects and decorative work. White concrete usually takes the
form of precast cladding panels, since it is not economical to use White Cement for
structural purposes.
Specifications
Physical Specifications
| Characteristic | Unit | IS (8042 : 1989) | PS (1630 : 1984) | MS (888 : 1991) |
|---|---|---|---|---|
| Fineness | ||||
| Blaine | Cm2/g | 2250 Min | 2250 Min | NR |
| Soundness | ||||
| Le-Chatelier Method | mm | 10 Max | 10 Max | 10 Max |
| Setting Time | ||||
| Initial Final |
Minutes Minutes |
45 Min. 600 Max |
45 Min. 600 Max |
60 Min. NR |
| Compressive Strength | ||||
| 2 Days | (Mpa) | NR | NR | 10.0 Min |
| 3 Days | (Mpa) | 14.4 Min | 12.0 Min | NR |
| 7 Days | (Mpa) | 19.8 Min | 19.0 Min | NR |
| 28 Days | (Mpa) | 29.7 Min | NR | 42.5 Min |
| Whiteness | % | 70 Min | 70 Min | 80 Min |
Chemical Specifications
| Characteristic | Unit | IS (8042 : 1989) | PS (1630 : 1984) | MS (888 : 1991) |
|---|---|---|---|---|
| Lime Saturation Factor | Ratio | 0.66 – 1.02 | 0.66 -1.02 | NR |
| Insoluble Residue | % | 2.00 Max. | 1.50 Max. | 5.00 Max. |
| Iron Oxide | % | 1.00 Max. | 1.00 Max. | 0.5 Max. |
| Magnesia | % | 6.00 Max. | 4.00 Max. | 5.0 Max.(For Clinker) |
| Sulphuric Anhydride | % | 3.00 Max. | 3.00 Max. | 3.00 Max. |
| Loss on Ignition | % | NR | NR | 5.00 Max. |
| Total Chlorides | % | NR | NR | 0.10 Max |