During the migration of the cement slurry to the molding surface, the water-binder ratio of the molding surface will increase, and the evaporation process will cause a larger porosity.
During the migration of cement slurry to the forming surface, the water binder ratio of the forming surface will increase, and the evaporation process will cause large porosity.
During the migration of cement slurry to the molding surface, the water-binder ratio of the molding surface will increase, and the evaporation process will cause larger porosity.