8Saucier F, Pigeon M, Cameron G. Air void stability, Part Ⅴ: temperature,general analysis and performance index[J]. ACI Materials Journal, 1991,88 ( 1 ) : 25.
9Attiogbe K. Mean spacing of air void in hardened concrete [ J ]. ACI Materials Journal, 1993, (2) : 174.
10Johnston D. Deicer salt sealing resistance and chloride permeability and code requirements for air content, spacing factor [J]. Concrete International, 1994, (8) :48.