Maha – OPC 53 grade cement, is a high strength, best quality cement designed to suit the modern construction practices. It is manufactured with excellent quality clinker, containing high percentage (56-60%) of Tri-calcium Silicate (C3S), and optimum quantity of gypsum.
| Physical Requirements |
Requirement as per IS 269 : 2015 |
Maha Cement OPC 53 |
|
| Fineness | Specific Surface (m2/kg) | 225(min) | 295 |
| Setting Time | a. Initial minutes) | 30 (min) | 165 |
| b. Final (minutes) | 600 (max) | 240 | |
| Soundness | Expansion of unaerated cement | ||
| a. By LeChatelier Method (mm) | 10 (max) | 1.0 | |
| b. By Auto Clave (%) | 0.8 (max) | 0.074 | |
| Compressive Strength | a. 72 ± 1 hr i.e. 3 days (M Pa) | 27 (min) | 38 |
| b. 168 ± 2 hr i.e. 7 days (M Pa) | 37 (min) | 48 | |
| c. 672 ± 4 hr i.e. 28 days (M Pa) | 53 (min) | 60 | |
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