Cement Products
Portland Sulfate Resisting Cement CEM I 42.5 N
Portland Sulfate Resisting Cement is designed to improve the durability of concrete and reduce the risk of structural deterioration in an environment of sulphate attacks such as foundations, sanitation works, sewage pipeline treatment and rehabilitation, as well as agricultural and industrial uses.
Chemical Composition | |
|---|---|
Sulphate resisting cement clinker | 90% to 95 % |
Limestone | 0% to 5% |
Gypsum | 4% to 6% |
Advantages
01
Relatively delayed initial setting time, which extends the time limit needed for the transportation, pumping, compacting and leveling processes of both of the ready mix and site mixed concretes.
02
The possibility of concrete plastic shrinking and cracking is reduced due to the reduced C₃A content, which consequently reduces the release of heat of hydration. This in turn participates in the enhancing of the overall concrete water impermeability.
Uses and
Applications
Minya Al Mokawm Sulphate Resistant Cement can be used in all types of concrete construction that is exposed to potential damaging effect of sulphate salts in the following:
01
Concrete work in sewage treatment projects
02
Reinforced concrete construction in agricultural land with poor agricultural drainage.
03
Concrete work in agricultural and industrial drainage projects.
04
Concrete work in irrigation construction like dams and barrages.
05
The foundation work of bridges and different types of piles.
06
Concrete work of tunnels.
07
Plain concrete foundation work in coastal areas and costal protection concrete blocks.
08
The production of precast and pre-fabricate concrete elements like tunnel segments and sewage pipes
Typical Results | Portland Cement | ES NO. 4756-1/2013 | |
|---|---|---|---|
Physical & Mechanical Properties | |||
Fineness by Blaine – Test method BS EN 196-6 | Cm²/g | 3050-3200 | |
Setting Behavior and Expansion BS EN 196-3 | |||
Initial setting time | minutes | 200-240 | Min 60 minutes |
Final setting time | minutes | 270-300 | |
Compressive strength BS EN 196-1 | |||
After 2 days | N/mm² | 15-20 | Minimum 10 N/mm2 |
After 7 days | N/mm² | 30-35 | |
After 28 days | N/mm² | 47-52 | Minimum 42.5 N/mm2 |
Expansion (Le Chatelier) | mm | 0.1 | Maximum 10 mm |