本文为财政部矿山保护项目(编号财建[2OO3]328号)资助的成果。
- 成都理工大学地球科学学院，610059
- College of Earth Sciences，Chengdu University of Technology，610059
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我国大量堆存和正在排放的煤矸石，既是一种矿业排量最大的废弃物，又可以被认为是一种可利用的巨型资源。阜新煤矸石主要由石英、长石、伊利石等矿物组成，化学成分含6O ～67 SiOz，13 ～18 AIz0s，具有高硅低铝特征，属于目前难以利用煤矸石。本文实验采用了c。s—c A。S—czs—c4AF体系，利用煤矸石的Alz0。煅烧成无水硫铝酸钙而不是铝酸三钙。添加Baso 、CaFz和铬渣，使硅酸三钙和无水硫铝酸钙能在1300 1360~C共生，制备出了阿利特一硫铝酸盐水泥。水泥熟料在1360℃ ，保温1小时烧成。研制的煤矸石水泥3天和28天抗压强度分别达到了34．7～36．8 MPa和52．2～54．4 MPa，达到了525 早强型高性能水泥指标。
Voluminous wastes—coal gangues—have been discharged from innumerable coal mines in China， whichproduce a great deal of environm ent problem ． The coal gangues from the coal mines of Fuxing district．Liaoning Provence，are mainly composed of quartz，illite，and feldspar，with a chemical composition of 6 0 9／5～7O SiOz，13 ～ 18 A1203，belonging to the high—silica／low alumina type coal gangues．This type of coalgangue has been considered difficult to use as a raw material for high—quality cement． A system C3S—C4A3S—C2S—C4AF has been designed in which the alumina of gangue has been taken to form sulphoaluminate(C4A3S)other than aluminate (C3A ) and thus form alite—sulphoaluminate cement． The C3S and C4A3S can be inparagenesis at 13OO～ 1360 C in using BaSO4，CaF2，Cr2O3 in industrial waste as activating agent． The clinkershave been prepared at 1 360 C for 1 hour． The compressive strength of the prepared alite—sulphoaluminatecement has been measured up to 34．7～ 36．8 M Pa and 52． 2～ 54．4 M Pa for 3 and 28 days。respectively．
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王国平,孙传敏,张平萍,王自有,苏小丽,钟素华.2005.用阜新煤矸石制备阿利特一硫铝酸盐水泥的试验研究[J].地质论评,51(5):600-605,[DOI].
W ANG Guoping, SUN Chuanmin, ZHANG Pingping, W ANG Ziyou, SU Xiaoli, ZHONG Suhua.2005. Experim ent Study on Al ite—sul phoal uminate Cement Using Coal Gangues from Fuxing District，Liaoning Provence，China[J]. Geological Review,51(5):600-605.
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