The problem with entrapped air content in PCC is initial mix and distresses - faulting, cracking and spalling. The main concern of cracking, over the years the

The problem with entrapped air content in PCC is initial mix and distresses - faulting, cracking and spalling. The main concern of cracking, over the years the porous bits that held air will all likely micro crack and equalize with the atmosphere, as well as things like freeze/thaw and salting severely affecting trapped air