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 55
Setting time, min 110
Portland cement clinker with gypsum, % 85
Burnt shale, % 9
Limestone, % 6
Fineness m2/kg 520

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.