1. A working hypothesis for further studies of frost resistance of concrete;Powers;Journal Proceedings,1945
2. The air requirement of frost resistant concrete;Powers;Highway Research Board Proceedings,1950
3. Void space as a basis for producing air-entrained concrete;Powers;Journal Proceedings,1954
4. Theory of volume changes in hardened Portland-cement paste during freezing;Powers;Proc. Highway Res. Board,1953
5. The significance of critical degrees of saturation at freezing of porous and brittle materials;Fagerlund;Spec. Publ.,1975