the moisture transport during drying is determined by the capillary pressure, Water evaporates first from the pores with the lowest capillary pressure, i.e., the largest pores. In this sample the largest pores (~100 mm) are present in。。。During the second drying stage(1-4h) these pores are empty and now only the pores in the range 1–10 μm present in the 。。。During the third drying stage (t > 4 h),。。。A significant decrease of the total drying rates observed at t=7h