HASSAAN M Y, EL-DESOKY M M, ABOU ZEID Y M. Estimation of the solubility limit of iron in tricalcium aluminate using different techniques [J]. Mater Sci Eng A, 2000, 276(1): 147-151. [2] KAMTUDDIN M, DASH S. Nanocrystalline and metastable phase formation in vacuum thermal decompo- sition of calcium carbonate [J]. Thermochim Acta, 2000, 63(3): 129. [3] WANG Haibin. The influences of slag on the formation kinetics of portland cement clinker [J]. J Southeast Inst Technol (in Chinese), 1996, 11(1): 36-39. [4] HUSEM Metin. The effects of bond strengths between lightweight and ordinary aggregate-mortar, aggregate- cement paste on the mechanical properties of concrete [J]. Mater Sci Eng A, 2003, 363(1): 152-158. [5] MA Suhua, SHEN Xiaodong, GONG Xueping. Influence of additives on the sintering of portland cement containing calcium sulphoaluminate mineral [J]. Bull Chin Ceram Soc, 2006, 25(1): 13. [6] MA Suhua, SHEN Xiaodong, GONG Xueping. Influence of CuO on mineral formation and solid solution of high cementing clinker [J]. J Southeast Univ (in Chinese), 2005, 35(1): 155-167. [7] DEMIR F, D?NMEZ B, OKUR H, et al. Calcination kinetic of magnesite from thermogravimetric data [J]. Chem Eng Res Des, 2003, 81(6): 618-622. [8] YE Qing, CHEN Huxing, WANG Yuqing. Effect of MgO and gypsum content on long-term expansion of low heat Portland slag cement with slight expansion [J]. Cem Concr Compos, 2004, 26(4): 331-337. [9] STAN K T, SULOVSKY P. The influence of the alite polymorphism on the strength of the Portland cement [J]. Cem Concr Res, 2002, 32(7): 1169-1175. [10] MAO Sen, LANG Er. New-type Cement and Concrete [M](in Chinese). Beijing: China Build Mater Ind Publish House, 1982: 28. [11] AKIN ALTUN I. Effect of CaF2 and MgO on sintering of cement clinker [J]. Cem Concr Res, 1999, 29: 1847-1850.