Ordinary portland cement

Thatta OPC is unique in its Low Alkali content feature with a total content of alkalies below 0.4 percent. Thatta OPC has an advantage that it can be used in concrete made with aggregates that contain a form of silica which reacts with alkalies if present in high proportion to cause an expansion which disrupts concrete. Another special feature of the Thatta OPC is that it has low contents of Tricalcium Aluminate. This helps to control the effect of spontaneous over-heating in large masses of concrete and resistance to sulfate attack.

Thatta OPC prevents chemical attack and corrosion on RCC. Its low heat of hydration makes it suitable for mass concreting. Its high early strength makes it ideal for use in load bearing structures. Thatta OPC has a higher Blaine value and fineness which facilitates denser concrete. Thatta OPC can be used in concrete mortars and grouts. Thatta OPC is a technically advanced and cost effective solution for construction above or below ground.