Portland cement is a common type of cement that is widely used in the construction and engineering sectors. Ordinary Portland cement is a special type of Portland cement, and there are some differences in their composition and properties compared to ordinary Portland cement.
The main differences are as follows:
Composition: Ordinary Portland cement is mainly made of limestone (a mixture of limestone and clay) and auxiliary materials (such as gypsum) that are calcined and ground into powder. Portland cement, on the other hand, is prepared on the basis of ordinary Portland cement by adding an appropriate amount of siliceous materials (such as silica, quartz, etc.).
Characteristics: Ordinary Portland cement and Portland cement have similar characteristics in terms of strength, compressive resistance, durability, etc. However, due to the addition of siliceous materials to Portland cement, it may be improved in terms of chemical resistance, permeation resistance, and fire resistance.
Uses: Ordinary Portland cement is widely used in concrete and mortar in buildings, roads, bridges and other projects. Portland cement is often used in some special engineering needs, such as marine engineering, chemical plants, etc., due to its good chemical attack resistance.
It should be noted that although there are some differences between ordinary Portland cement and Portland cement, the difference between the two may not be obvious to the average user in general construction and engineering applications. When choosing the right type of cement for your specific project, it's best to consult with a specialist building material supplier or engineer.