Portland Cement 42.5 For Constructions

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CEMENT STANDARD
1.Vietnam standard (TCVN)
- Quality of Cement as per TCVN 6260 - 2009
2. European standards (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 42,5
3. American standards (ASTM
- ASTM C150 TYPE-1
- ASTM C1157 TYPE- GU
- ASTM C1157 TYPE- HE
SPECIFICATIONS FOR ORIDINARY PORTLAND CEMENT AS PER EN 197-1:2011/CEM I 42.5
Items CHARACTERISTICS Units SPECIFICATION LIMIT TEST RESULT TEST METHODS
1 SiO2 % ≤ 26.00 23.41 EN 196-2
2 Al2O3 % ≤ 6.50 5.5
3 Fe2O3 % ≤ 4.50 3.6
4 CaO % ≥ 54.00 57
5 MgO % ≤ 5.00 2.75
6 SO3 % ≤ 3.5 2.56
7 Loss on Ignition, (LOI) % ≤ 10.00 7.00
8 Insoluble Residue % ≤ 12.00 6.00
Physical and Mechanical Properties
* Finess test
1 Blaine cm2/g ≥ 3200 3800 EN 196-6
2 Retained content on sieve 75mm % < 15.0 0.1
* Time of setting
1 Initial set Minutes ≥ 75 145 EN 196-3
2 Final set Minutes < 420 200
3 Soundness (LeChatelier) mm < 10.0 1.0 EN 196-3
* Compressive strength
1 2 Days MPa ≥ 20.0 23.0 EN 196-1
2 3 Days MPa 27.0
3 7 Days MPa 37.0
4 28 Days MPa ≥ 42.5 50.0



 

 


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0.006 s.