Title :
Study on preparation of alite-sulphoaluminate cements by utilizing coal gangue
Author :
Xu, Guanli ; Sun, Yao
Author_Institution :
Coll. Of Earth Sci., Chengdu Univ. of Technol., Chengdu, China
Abstract :
Coal gangue is a kind of solid waste which is discharged by coal mining and coal washing. Dumped gangue does not only take lots of occupation of land but also pollute air and water. Treatment and utilizing of coal gangues is conducive to regional economic development and environment protection. Alite-Sulphoaluminate cement can be made at 1330oC in using coal gangue, limestone and a little of gypsum fluorite and barite. It is proved by compressive strength tests that Alite-Sulphoaluminate cement´s purified pulp is up to 45.6MPa in 3 days, 72.72MPa in 28days.
Keywords :
cement industry; cements (building materials); coal; compressive strength; compressive testing; industrial waste; alite-sulphoaluminate cement; barite; cement purified pulp; coal gangue; coal mining; coal washing; compressive strength test; environment protection; gypsum fluorite; regional economic development; solid waste; temperature 1330 degC; Coal; Earth; Economics; Educational institutions; Presses; Stability analysis; Three dimensional displays; Alite-Sulphoaluminate Cement; Coal gangue; Waste residue Utilization;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5964165
