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I. CEMENT STANDARD
1.Vietnam standard (TCVN)
- Quality of Cement as per TCVN 6260 - 2009
2.European standard (EN)
- Certificate I -EN 197-1.2000- CEM II 42,5 R
- Certificate II - En 197-1.2000 CEM II 42,5N
- Certificate III - EN 197-1.2000 CEM I 42,5R
3.American standard (ASTM)
- ASTM C150 TYPE-1
- ASTM C1157 TYPE- GU
- ASTM C1157 TYPE- HE
II. SPECIFICATIONS FOR ORIDINARY PORTLAND CEMENT AS PER EN 197-1:2000/CEM II 42.5
Items | Units | Specification | Test Results | Test Method |
SiO2 | % | ≤ 26.00 | 23.41 | EN 196-2 |
Al2O3 | % | ≤ 6.50 | 5.50 | |
Fe2O3 | % | ≤ 4.50 | 3.60 | |
CaO | % | ≥ 54.00 | 57.00 | |
MgO | % | ≤ 5.00 | 2.75 | |
SO3 | % | ≤ 3.5 | 2.56 | |
Loss on Ignition, (LOI) | % | ≤ 10.00 | 7.00 | |
Insoluble Residue | % | ≤ 12 | 6.00 | |
Physical and Mechanical Properties | ||||
Finess test |
|
|
| EN 196-6 |
- Blaine | cm2/g | ≥ 3200 | 3800 | |
- Retained content on sieve 75mm | % | < 15.0 | 0.10 | |
Time of setting - Initial set - Final set | Minutes |
≥ 75 < 420 |
145 200 | EN 196-3 |
Soundness (LeChatelier) | mm | < 10.0 | 1.0 | EN 196-3 |
Compressive strength | MPa |
|
| EN 196-1 |
2 Days | ≥ 20.0 | 23.0 | ||
3 Days | - | 27.0 | ||
7 Days | - | 37.0 | ||
28 Days | ≥ 42.5 | 50.0 | ||
