详情

原文传递 RED MUD - FLY ASH MIX AS AN EMBANKMENT FILL MATERIAL

题名：	RED MUD - FLY ASH MIX AS AN EMBANKMENT FILL MATERIAL
正文语种：	英文
作者：	PARVATHI GEETHA SREEKANTAN; DR. ANIL KUMAR SINHA; DR. VASANT G. HAVANGI
作者单位：	Geotechnical Engineering Department, CS1R-Central Road Research Institute, New Delhi
关键词：	application；permeability；industrial；emba；specification；centration；proportion；bank；present；production
摘要：	Red mud is an industrial waste which is being generated by Bayer process of alumina production. It is generally dumped near the plant in a pond without any usage, occupying costly land. However, it has the potential for application in the construction of road embankment. It has also the potential for application in raising embankment height for the disposal of industrial waste pond itself. Thus, capacity augmentation of waste pond is also possible by mass recycling of red mud which leads to conserve the conventional soil. Considering this, red mud sample was collected from Hindalco, Muri, Jharkhand. Chemical and geotechnical characterization was carried out for its application in embankment construction. As its natural moisture content is very high due to disposal in a lean slurry form, with solid concentration in the range of 25% to 50%, it is very difficult to use in the field for the construction of embankment. Accordingly, it was blended with fly ash in the different proportion varying from 5 to 50% which is abundantly available near the plant. Detailed laboratory investigation was carried out on red mud-fly ash mixes viz. Modified Proctor, permeability and triaxial shear tests. Suitability of red mud and its mixes as an embankment material was derived as per Indian standard specifications. Paper presents the geotechnical characterization of red mud and its mixes with fly ash. Design and stability analysis were also presented for a typical red mud embankment with or without fly ash mix. It was inferred that red mud alone and mixes with fly ash are suitable for the embankment construction.
出版年：	2019
期刊名称：	Indian Highways
卷：	47
期：	3
页码：	20-25