The mechanical properties of several kinds of coal gangue calcined with limestone were Researched so as to find the optimum way of calcinations with limestone. Mierostructure and property of hydration process of cement pastes containing added-calcium coal gangue were analyzed by means of scanning electron microscope (SEM) and method of mercury in trusion poremeasurement (MIP), etc. The experiment can approve those results: when proper amounst of gypsum and fluorite were taken as mineralizers in the course of calcinations of added-calcium coal gangue, activity of coal gangue can be effectively improved. The results of mechanical property and structural characteristic such as hydration process, hydration product and microstructure etc. of cement pastes containing added-calcium coal gangue are consistent.
参考文献
| [1] | National Economic Trading Committee and Department of Science and Technology Unitedly Issue that Outline of Policy of Comprehensive Utilization of Coal Gangue[J].Technology of Clean Coal,2000(01):56. |
| [2] | 王海平.煤矸石的综合利用与煤炭企业可持续发展[J].山西煤炭,2003(01):59,62. |
| [3] | 冯彬.煤矸石活性的研究[J].上海环境科学,2000(07):349-351,353. |
| [4] | Yang Z Q;Zhang R S .Characteristic of Coal Gangue and its Usage[J].Journal of Shandong Mining Institute,1994,13(01):67-71. |
| [5] | Yang Z Q.The Experimental Research on Activation of Coal Gangue[J].Building Material of China,1993(09):45-46. |
| [6] | G.Kakali;T. Perraki;S. Tsivilis .Thermal treatment of kaolin: the effect of mineralogy on the pozzolanic activity[J].Applied clay science,2001(1/2):73-80. |
| [7] | Palomo A;Glasser F E .Chemically-bonded Cementious Materials Based on Metakaolin[J].British Ceramic Transactions,1992,91:107-112. |
| [8] | Armesto L.;Merino J.L. .Characterization of some coal combustion solid residues[J].Fuel,1999(5):613-618. |
| [9] | Li A S.Application of Compound Mineralizer in Cement Plant with Vertical Kiln[J].Building Materials of Shanxi,1995(01):19-23. |
| [10] | Lian H Z;Tong L;Chen E Y.Research Foundation of Crystalline Phases of Building Materials[M].北京:清华大学出版社,1996:105-130. |
| [11] | Li D X .Study on High Content Blast Furnace Slag and/or Phosphorous Slag Ecological Cement[D].Nanjing:Nanjing University of Technology,1998. |
| [12] | Li D X;Mao L X;Wu X Q .The Influence of Admixtures on Strength and Pore Structure of High Phosphorous Slag Cement[J].Journal of Nanjing University of Chemical Technology,1998,20(02):44-48. |
| [13] | Y.Fan;S.Yin .Activation of fly ash and its effects on cement properties[J].Cement and Concrete Research,1999(4):467-472. |
| [14] | 石明霞,谢友均,刘宝举.水泥-粉煤灰复合胶凝材料的水化性能研究[J].建筑材料学报,2002(02):114-119. |
| [15] | Bryan K M;Robert L D .Pozzolanic and Cementitious Reactions of Fly Ash in Blended Cement Pastes[J].Cement and Concrete Research,1988,18:301-310. |
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