Giá : ~47 VND
Portland cement is made of quality material that makes it recommended for building commercial and residential building . It is also suitable for construction of pavements , Briges, roads, highways, airstrips and others
Portland cement is made of quality material that makes it recommended for building commercial and residential building . It is also suitable for construction of pavements , Briges, roads, highways, airstrips and others
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 42,5R
3. American standards (ASTM)
- ASTM C150 TYPE-1
- ASTM C1157 TYPE- GU
- ASTM C1157 TYPE- HE
Items | CHARACTERISTICS | Units | SPECIFICATION LIMIT | TEST RESULT | TEST METHODS |
ASTM C150-TYPE I | |||||
1 | SiO2 | % | 22 max | 20.26 | ASTMC114 |
2 | Al2O3 | % | - | 5.16 | |
3 | Fe2O3 | % | - | 3.18 | |
4 | CaO | % | 60 min | 63.28 | |
5 | MgO | % | 6 max | 1.05 | |
6 | SO3 | % | 3 max | 2.55 | |
7 | Loss on Ignition, (LOI) | % | 3 max | 2.71 | |
8 | Insoluble Residue | % | 0.75 max | 0.69 | |
9 | Chloride conten | % | A | - | |
10 | Total Alkali Na2Ot®= Na2O + 0.658 K2O | % | 0.75 max | 0.55 | |
11 | C3S | % | A |
| BY |
12 | C2S | % | A |
| |
13 | C3A | % | A |
| |
14 | C4AF | % | A |
| |
15 | Specific surface or Blaine | cm2/g | 3200 min | 3537 | ASTM C204 |
16 | Retained content on sieve 45mm | % | A |
| ASTM C430 |
17 | Setting time |
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18 | - Initial Setting Time | Minute | 45 min | 125 | ASTMC191 |
19 | - Final Setting Time | Minute | 375 max | 185 | |
20 | Heat of hydration: |
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21 | 7 Days | KJ/kg | A |
| ASTM C 186 |
22 | 28 Days | KJ/kg | A |
| ASTM C 186 |
23 | Mass density | g/cm | A |
| ASTM C 188 |
24 | Sulfate resistance, 14 days expansion | % | A |
| ASTM C 452 |
25 | Air content of mortar | % | ≤ 12.0 |
| ASTM C 185 |
26 | Autoclave expansion | % | < 0.80 |
| ASTM C 151 |
27 | Compressive strength |
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28 | - 3 days | MPa | 12 min | 16.8 | ASTMC109 |
29 | - 7 days | 19 min | 25.3 | ||
30 | - 28 days | 28 min | 37.2 | ||
31 | Fineness |
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32 | Retained content on sieve 0.09mm | % | 3 max | 0.12 | ASTM C430 |
33 | Chloride content | % | 0.1 max | 0.04 | ASTMC114 |
34 | CaO free | % | 1.5 max | 0.65 | ASTMC114 |
SPECIFICATIONS FOR ORIDINARY PORTLAND CEMENT AS PER EN 197-1:2011/CEM I 42.5 | ||||||
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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 |
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1 | Blaine | cm2/g | ≥ 3200 | 3800 | EN 196-6 | |
2 | Retained content on sieve 75mm | % | < 15.0 | 0.1 | ||
| Time of setting |
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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 |
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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 |
Note :
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