Composite Portland cement

Composite Portland cement is a hydraulic cementitious material made of Portland cement clinker, two or more specified mixed materials, and an appropriate amount of gypsum grinding, which is called composite Portland cement (referred to as composite cement), code P.C. The total dosage of mixed materials in cement should be greater than 20% and not more than 50% according to the mass percentage.

Component Materials:

Portland cement clinker is the same as GB175

Reactive mixed materials

It refers to granulated blast furnace slag in accordance with GB203, pozzolana mixed materials in accordance with GB2847 and fly ash in accordance with GB1596, as well as newly developed active mixed materials in accordance with Appendix A, such as iron slag, refined ferrochrome slag, etc