详情
CEMENT STANDARD
1.Vietnam standard (TCVN)
- Quality of Cement as per TCVN ***0 - ***9
2. European standards (EN
- Certificate I -EN ****1.****- CEM II *2,5 R
- Certificate II - En ****1.***0 CEM II *2,5N
- Certificate III - EN ****1.***0 CEM I *2,5
3. American standards (ASTM
- ASTM C**0 TYPE*1
- ASTM C***7 TYPE- GU
- ASTM C***7 TYPE- HE
SPECIFICATIONS FOR ORIDINARY PORTLAND CEMENT AS PER EN
****1:***1/CEM I *2.5
Items CHARACTERISTICS Units SPECIFICATION LIMIT TEST RESULT TEST
METHODS
1 SiO2 % ≤ *6.*0 *3.*1 EN ****2
2 Al2O3 % ≤ 6.*0 5.5
3 Fe2O3 % ≤ 4.*0 3.6
4 CaO % ≥ *4.*0 *7
5 MgO % ≤ 5.*0 2.*5
6 SO3 % ≤ 3.5 2.*6
7 Loss on Ignition, (LOI) % ≤ *0.*0 7.*0
8 Insoluble Residue % ≤ *2.*0 6.*0
Physical and Mechanical Properties
* Finess test
1 Blaine cm2/g ≥ ***0 ***0 EN ****6
2 Retained content on sieve *5mm % < *5.0 0.1
* Time of setting
1 Initial set Minutes ≥ *5 **5 EN ****3
2 Final set Minutes < **0 **0
3 Soundness (LeChatelier) mm < *0.0 1.0 EN ****3
* Compressive strength
1 2 Days MPa ≥ *0.0 *3.0 EN ****1
2 3 Days MPa *7.0
3 7 Days MPa *7.0
4 *8 Days MPa ≥ *2.5 *0.0
