Analysis of Coal Combustion By-Products (CCBs) in Mongolia in Consideration of the Characteristics to be suitable for Backfilling and Securing of abandoned Small Scale Coal Mines
| dc.contributor.advisor | Baasandorj Myagmarsuren | |
| dc.contributor.advisor | Temuulen Purevdorj | |
| dc.contributor.author | Khangai Gerelsukh | |
| dc.contributor.supervisor | Peter Vossen | |
| dc.contributor.supervisor | Martin Knippertz | |
| dc.date.accessioned | 2024-11-11T09:44:57Z | |
| dc.date.available | 2024-11-11T09:44:57Z | |
| dc.date.issued | 2019-05-07 | |
| dc.description.abstract | The research aimed to evaluate the possibility to use CCBs and industrial wastes for backfilling material for underground mines. Hundreds of thousand tons of CCBs in Mongolia is being landfilled despite its economical and beneficial properties. Following tests and analyses were made to evaluate CCBs and industrial wastes: sieve analysis, SEM analysis, radioactivity detection, moisture content analysis, XRF chemical content analysis, uniaxial compression test, elution test and FTIR analysis. Total of 9 CCBs and 1 electric-arc furnace slag from 7 different location/plant have been evaluated to represent Mongolian CCBs. Backfill mix designs were designed to compare the materials and to choose the best suited material for backfilling purpose. During the research, fly ash from the thermal plant #4 and ger district bottom ash had been proven as a suitable material for backfilling while other material can be utilized but, other binder additives such as portland cement must be used. Any of the evaluated materials in this research are investigated not being harmful to environment and to human health. Fly ash and ger district ash are the most common CCBs in Mongolia. More than 200 thousand tons of fly ash and another 200-230 thousand tons of ger district bottom ash are being generated annually. | |
| dc.identifier.uri | https://gmitlibrary.net/handle/123456789/90 | |
| dc.language.iso | en | |
| dc.publisher | German Mongolian Institute for Resouce and Technology | |
| dc.title | Analysis of Coal Combustion By-Products (CCBs) in Mongolia in Consideration of the Characteristics to be suitable for Backfilling and Securing of abandoned Small Scale Coal Mines | |
| dc.type | Thesis |