Utilization of Fly Ash in Mine Stowing

Devi Prasad Mishra

ISBN 10: 3846598046 / ISBN 13: 9783846598047

Published by LAP LAMBERT Academic Publishing Dez 2011, 2011

About this Item

Neuware -In recent years, fly ash is a subject of worldwide concern due to considerable environmental importance. It has been recognised that use of fly ash in stowing or backfilling of mines is an attractive solution to its disposal problems. Characteristics of fly ash and its response to imposed load must be studied beforehand for its effective utilization in stowing. This research work presents the physico-chemical characterization of fly ash of two thermal power stations located in the eastern part of India utilizing Talcher coal as fuel for power generation to assess their suitability for stowing in underground coal mines. An effort has been made to enhance the settling of fly ash particles and water drainage from the hydraulically stowed pond ash using polymeric flocculant. Besides, the geotechnical properties, viz. the compaction and consolidation properties of the fly ash are studied in this research. Lastly, the competency of stowed pond ash in taking load of the overlying strata has also been predicted. This research will be useful for the mining professionals, researchers, and students as a guide to assess the suitability of fly ash for stowing and help in its bulk utilization.Books on Demand GmbH, Überseering 33, 22297 Hamburg 172 pp. Englisch.

Seller Inventory # 9783846598047

Bibliographic Details

• Title: Utilization of Fly Ash in Mine Stowing
• Publisher: LAP LAMBERT Academic Publishing Dez 2011
• Publication Date: 2011
• Language: English
• ISBN 10: 3846598046
• ISBN 13: 9783846598047
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 11D millimeters 220 millimeters width by 150 millimeters height by 11 millimeters depth
• Weight: 274 grams

About this title

Synopsis

In recent years, fly ash is a subject of worldwide concern due to considerable environmental importance. It has been recognised that use of fly ash in stowing or backfilling of mines is an attractive solution to its disposal problems. Characteristics of fly ash and its response to imposed load must be studied beforehand for its effective utilization in stowing. This research work presents the physico-chemical characterization of fly ash of two thermal power stations located in the eastern part of India utilizing Talcher coal as fuel for power generation to assess their suitability for stowing in underground coal mines. An effort has been made to enhance the settling of fly ash particles and water drainage from the hydraulically stowed pond ash using polymeric flocculant. Besides, the geotechnical properties, viz. the compaction and consolidation properties of the fly ash are studied in this research. Lastly, the competency of stowed pond ash in taking load of the overlying strata has also been predicted. This research will be useful for the mining professionals, researchers, and students as a guide to assess the suitability of fly ash for stowing and help in its bulk utilization.

About the Author

Devi Prasad Mishra, Assistant Professor, Dept. of Mining Engg., ISM, Dhanbad received his Ph.D in Mining Engg. from IIT, Kharagpur and M.Tech in Mine Planning and Design from ISM. His areas of specialization are stowing with fly ash, mine ventilation and environmental Engg. He is a recipient of Dr. Rajendra Prasad Memorial Prize from IE (India).