Ordinary Portland cement (OPC) is by far the most important type of cement.
The OPC was classified into three grades, namely 33 grade, 43 grade and
53 grade.
High heat of hydration
Initial...
In 1824 Joseph Aspdin, a British stonemason, obtained a patent for a cement he produced in his kitchen. The inventor heated a mixture of finely ground limestone and clay on his kitchen stove and...