PORTLAND CEMENT CONFORMING TO
EN 197-1:2011/CEM I 52,5 N
Items | Units | Specification | Test Results | Test Method |
SiO2 | % | ≤ 22.0 | 21.00 | EN 196-2 |
Al2O3 | % | - | 5.00 |
Fe2O3 | % | - | 3.10 |
CaO | % | ≥ 60.0 | 61.00 |
MgO | % | ≤ 5.00 | 2.75 |
SO3 | % | ≤ 3.5 | 2.75 |
K2O | % | - | 0.45 |
Na2O | % | - | 0.15 |
R2O (TOTAL ALKALI) | % | - | 0.45 |
Loss on Ignition, (LOI) | % | ≤ 5.00 | 2.50 |
Insoluble Residue | % | ≤ 5.00 | 0.55 |
Chloride content | % | ≤ 0.10 | 0.02 | EN 196-21 |
Physical and Mechanical Properties |
Finess test | | | | EN 196-6 |
- Blaine | cm2/g | ≥ 3200 | 4100 |
- Retained content on sieve45mm | % | < 12.0 | 10.3 |
Time of setting - Initial set - Final set | Minutes | ≥ 75 < 420 | 130 200 | EN 196-3 |
Soundness (LeChatelier) | mm | < 10.0 | 1.0 | EN 196-3 |
Compressive strength | MPa | | | EN 196-1 |
2 Days | ≥ 20.0 | 29.0 |
3 Days | - | 36.0 |
7 Days | - | 50.0 |
28 Days | ≥ 52.5 | 60.0 |
Note: R2O = %Na2O + 0.658 X % K2O
