Low Alkali Cement
Maple Leaf’s Low Alkali Cement is of the highest quality available in Pakistan. It benefits concrete in resisting the alkali silica reaction and is primarily used in a construction that needs to be moisture resistant, such as airports, runways and dams.
Specifications
Physical Specifications
| Characteristic | Unit | PS 232 : 1983 |
|---|---|---|
| Fineness | ||
| Blaine | Cm2/g | 2250 Min |
| Soundness | ||
| Le-Chatelier Method | mm | 10 Max |
| Setting Time | ||
| Initial Final |
Minutes Minutes |
45 Min. 600Max |
| Compressive Strength | ||
| 3 Days 7 Days 28 Days |
(Mpa) (Mpa) (Mpa) |
15.0 Min. 23.5 Min. 34.5 Min. |
Chemical Specifications
| Characteristic | Unit | PS 232 : 1983 |
|---|---|---|
| Lime Saturation Factor | Ratio | 0.66 – 1.02 |
| Insoluble Residue | % | 1.50 Max. |
| Magnesia | % | 4.00 Max. |
| Sulphuric Anhydride | % | 3.00 Max. |
| Loss on Ignition | % | 3.00 Max. |
| Total Alkalies as Na2o | % | 0.60 Max (ASTM C-150) |