1. Mechanisms of air entrainment in concrete;Du;Cem. Concr. Res.,2005
2. Durability of Concrete in Cold Climates;Pigeon,1995
3. Pore Structure;Verbeck,1966
4. Why is there air in concrete?;Hover;Concr. Constr.,1993
5. Concrete: Microstructure, Properties, and Materials;Mehta,2006