This type of cement is used to resist hydration process. In order to cater to this process, clinkers are grinded with water repellent film substance like Oleic Acid or Stearic Acid during the transportation or storage phase. These chemicals outline a layer on the cement particle plus do not let water to mix and start the hydration method. When cement and aggregate are systematically mixed in the mixer, shielding layers break and initiate normal hydration with a few air-entrainment which increases workability.
It is normally used in the building of water structures like dams, spillways, or else other submerged structures.
It is too used in the building of underground structures such as tunnel etc.