What is Portland Cement?
The key to concrete is portland cement- the fine gray powder that binds sand and gravel into concrete’s rock-like mass. Portland cement produces highly durable and sound concrete due to a very low percentage of alkalis, chlorides and magnesia in its composition. It is commonly used for high rise buildings, commercial & industrial complexes, roads, runways, bridges and heavy defense structures.
| Type | Description | Common Use |
| I | General purpose | Buildings, pavements |
| II | Moderate sulfate resistance | Drainage structures, foundations |
| III | High early strength | Precast, cold weather |
| IV | Low heat of hydration | Large dams |
| V | High sulfate resistance | Sewage, marine, sulfate-rich soils |