Moderate-heat Portland Cement
A Portland cement containing a lower content of alite (C3S) and tricalcium aluminum phase (C3A) to suppress the heat of hydration. The Moderate Heat Portland Cement is particularly suitable for mass concrete used in dam construction for example.
Properties
Excellent long term strength,
Minimal dry shrinkage, and
Great chemoresistance to chemicals, such as hydrosulfate.
Applications
Moderate Heat Portland Cement is suitable for large-scale construction works, such as dams, bridge beams and nuclear power plants.
Testing result (example)
| Item | Moderate-heat Portland Cement | JIS * Standards (JIS R 5210) |
|
| Density (g/cm3) | 3.21 | – | |
|---|---|---|---|
| Specific Surface Area (cm2/g) | 3650 | More than 2500 | |
| Setting | Initial Set h-min Final Setting h-min |
3-00 4-25 |
More than 60min Less than 10h |
| Soundness (Pat Test) | Qualified | Qualified | |
| Compressive Strength (N/mm2) | 3d 7d 28d |
22.5 31.8 55.1 |
More than 7.5 More than 15.0 More than 32.5 |
| Heat of hydration(J/g) | 7d 28d |
275 328 |
Less than 290 Less than 340 |
| Chemical Composition (%) | Magnesium oxide Sulfur trioxide Ignition loss Total alkali Chloride ion |
1.28 2.22 0.92 0.45 0.008 |
Less than 5.0 Less than 3.0 Less than 3.0 Less than 0.75 Less than 0.02 |
| Mineral composition(％) | Tricalcium silicate Tricalcium aluminate |
45 4 |
Less than 50 Less than 8 |
* : JIS: Japanese Industrial Standards
Note : If Portland Blast Furnace Slag Cement is used for soil improvement, elution tests should be conducted with soil to be used in advance.
Availability
Our Portland Blast Furnace Slag Cement is available in bulk.
Note : Availability of products and packing types varies from region to region. Please contact your nearest branch office for further information.
Safe Application Guide for Flexible Containers
When using flexible containers, please refer to the diagram and warnings shown in this Safe Application Guide and use them with full care.