1. Rankin GA, Wright FE (1915) Am J Sci 39:1
2. Lea F (1998) Lea’s chemistry of cement and concrete, 4th edn. P.C. Hewlett, London
3. Taylor HFW (1997) Cement chemistry, 2nd edn. Thomas Telford Edition, London
4. Butt YM, Timashev VV (1974) 6th international congress on the chemistry of cement, Moscow, September 1974, p 2
5. Timashev VV (1980) 7th international congress on the chemistry of cement, Paris, p 1