Composite Cement
| Product name | Composite Cement |
|---|---|
| Cement designation | CEM II/A-M (T-L) 42,5 R |
| Standard | EVS-EN 197-1:2011 |
| Standard name of cement | Portland Composite Cement |
| Strength class of cement | 42,5 R |
| No of the certificate of constancy of performance | 1504-CPR-0490 |
| Issued by and No | Tallinna Sertifitseerimisasutus OÜ1504 |
| Declaration of performance | 1504 CPR-0490 |
| Characteristics | |
| Compressive strength, Mpa | |
| After 1 day | 21 |
| After 2 days | 35 |
| After 28 days | 58 |
| Setting time, min | 110 |
| Portland cement clinker with gypsum, % | 85 |
| Burnt shale, % | 9 |
| Limestone, % | 6 |
| Fineness m2/kg | 490 |
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The letter R in the strength class designation of cement refers to high early strength of the cement. The letter N in the strength class designation refers to ordinary early strength of the cement. |
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