Ordinary Portland cement:
1) P.II52.5R, P.II52.5, P.II52.5 (R): high grade concrete, great span bridges and beams
2) P.II42.5R, P.II42.5: large area concrete, such as airplane runways, and viaducts
3) P.O42.5R, P.O42.5, P.L42.5, P.C42.5: bridges, roadways, high-rise buildings, normal industry and living buildings
4) P.O32.5, P.C32.5, P.L32.5: normal industry and living buildings
5) Portland cement with sulfate resistance: seaports, water conservancy, and subterranean water conservancy
6) Road Portland cement: high level roadways, freeways, airline runways, and projects requiring for high friction and shrink resistance
7) Middle-heat and low-heat Portland cement: mass concrete projects, e.g. dams