1. Prevention of frost damage to green concrete;Powers,1962
2. Sadgrove BM. Freezing of concrete at early age. Cement and concrete association technical report, no. 42.503, London; 1974. p. 12.
3. Gruenwald E. Cold weather concreting with high-early strength cement. RILEM symposium on winter concreting, theory and practice; Session B-1, 1956. p. 34.
4. Considerations in the prevention of damage to concrete frozen at early ages;George;J Am Concr Inst,1983
5. Moller G. Tests of resistance of concrete to early frost action. RILEM symposium on winter concreting, theory and practice, Session B-1; 1956. p. 31.