1. 1) H. M. Jennings:Refinements to colloid model of C-S-H in cement:CM-II, Cem. Concr. Res., 38, pp.275-289(2008)
2. 2) T. C. Powers, and T. L. Brownyard:Studies of the physical properties of hardened Portland cement paste. Part 2. Studies of water fixation, J. Am. Concr. Inst. 18(3), pp.249-303(1946)
3. 3) T. C. Powers:The air requirement of frost-resistant concrete, Proc. Highway Res. Board, 29, pp.184-211(1949)
4. 4) M. Pigeon, and R. Pleau:Durability of Concrete in Cold Climates, E & FN Spon, London(1995)
5. 5) S. H. Kosmatka, and W. C. Panarese:Design and Control of Concrete Mixtures, 13th ed. Portland Cement Association, Skokie, IL, Ch. 8(1988)