Characterization of mine overburden and fly ash as a stabilized pavement material
| Autor: | Mahasakti Mahamaya, Sarat Kumar Das |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Cement
Waste management business.industry General Chemical Engineering 0211 other engineering and technologies Coal mining Thermal power station 02 engineering and technology California bearing ratio Overburden Compressive strength Surface mining Fly ash 021105 building & construction Environmental science business 021101 geological & geomatics engineering |
| Zdroj: | Particulate Science and Technology. 35:660-666 |
| ISSN: | 1548-0046 0272-6351 |
| DOI: | 10.1080/02726351.2016.1194344 |
| Popis: | Mine overburden removed during surface mining is considered as “waste” or “spoil” that is consuming a vast tract of land for storage. Due to high ash content (30–50%) of Indian coals, 130 million tons of fly ash per year is generated with less than 50% of it is being used. Many a time thermal power plants are close to coal mines. Hence, in the present study it is proposed that a mixture can be prepared using fly ash and coal mine overburden with or without cement, which can be used as a stabilized pavement material. The present study deals with characterization of cement stabilized mine overburden fly ash mixture as a pavement material. Mixtures with varying cement percentage of 4–7% were prepared. Based on the unconfined compressive strength and California Bearing ratio values of the stabilized mixture, it was observed that it can be used as a stabilized pavement material. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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