1. Fast hardening cement: This is very similar to ordin […]
1. Fast hardening cement:
This is very similar to ordinary Portland cement (OPC). It contains a higher C3S content and finer grinding. The strength of cement at 3 days of age and 7 days of strength OPC has the same cement ratio as water.
2. Low heat cement:
This kind of cement is mainly used for large-volume concrete construction, and its initial setting time is longer than OPC. Making low-heat cement by increasing the proportion of C2S and reducing the content of C3S and C3A
3. Portland Volcanic Cement:
Compared with OPC, it generates less heat for hydration and is more resistant to attack by chemical agents. Therefore, concrete made with PPC is considered to be particularly suitable for seawater, hydraulic engineering and large-scale concrete projects. Portland Volcanic Cement:
Compared with OPC, it generates less heat for hydration and is more resistant to attack by chemical agents. Therefore, concrete made with PPC is considered to be particularly suitable for seawater, hydraulic engineering and large-scale concrete projects.
4. White cement:
Due to its white color, this cement is mainly used for interior and exterior decoration work, such as exterior decoration of buildings, veneers, floors, decorative concrete products, garden paths, swimming pools, etc.
5. Sulfate-resistant cement:
Sulfate-resistant cement is made by reducing C3A and C4AF content. Cement having this composition has excellent resistance to sulfate attack. This type of cement is used for foundation construction in soils with high sulfate content in the soil.
6. Air-entraining cement:
It is made of air entraining agents such as resins, glues, sodium salts of sulfates and ordinary portland cement.
7. Colored cement:
The cement is made by adding 5-10% mineral pigments to Portland cement during the grinding process. Due to various color combinations, this cement is mainly used for interior and exterior decoration works.
8. Expansive cement:
The cement does not shrink during this time and after the hardening time, but slightly expands over time and is called expanded cement. This type of cement is mainly used for grouting anchor bolts and prestressed concrete pipes.
9. High alumina cement:
High alumina cement (HAC) is a special cement made by mixing bauxite (aluminum ore) and lime at a certain temperature. This cement is also called calcium-aluminum cement (CAC). This cement has very high compressive strength and is easier to process than ordinary portland cement.
10. Hydrophobic cement:
Hydrophobic cement is a process by grinding ordinary Portland cement, which makes water repellent chemicals. Therefore, the cement stored during the monsoon does not deteriorate. The cement is also said to be unaffected during rainy transportation. Hydrophobic cement is mainly used to construct water structures such as dams, water tanks, spillways, and water retaining structures.
11. Waterproof Portland Cement:
Waterproof cement is prepared by mixing with ordinary or fast hardening cement, a small amount of metal stearates (Ca, Al, etc.) during grinding. This cement is used to construct water retaining structures such as pools, reservoirs, retaining walls, swimming pools, dams, bridges, docks, and the like.
12. Portland Blast Furnace Cement:
In this case, ordinary cement clinker is mixed with 65% of the blast furnace slag for final grinding. This type of cement can be used in bulk concrete work, such as dams, foundations, abutments of bridges, retaining walls, and buildings in seawater.