1. Hu, H.et al., ‘Manufacture and Applications of Cement’, (Shandong Keji Press, Jinan, 1993), 173.
2. Jawed, I. and Skalny, J., ‘Alkalies in cement: a review—II. Effects of alkalies on hydration and performance of Porland cement’,Cement Concrete Research (8) (1978) 37–52.
3. Lea, F.M., ‘The Chemistry of Cement and Concrete’, (Chem. Publ. Corp., 2nd Edition, New York, 1971).
4. Locher, F.W., ‘Setting of cement. Part I: Reaction and development of structure’,Zement-Kalk-Gips, (29) (1976) 435–442.
5. Peter, J.J., ‘Lea's Chemistry of Cement and Concrete’, (4th Edition, edited by P.C. Hewlett, London, 1998) 65.