| Autor: |
EKER SANLI, Gizem, PINARLI, Vedat |
| Zdroj: |
Proceedings of the International Conference on Waste Technology & Management; 2019, p493-498, 6p |
| Abstrakt: |
Scrap tires and waste oil used as supplementary fuels in cement industry were investigated in this study. Ratios of waste fuels ranging from 2% to 16% in total fuel were combusted in a full-scale cement rotary kiln. Clinker samples were analysed and considerable changes in the chemical composition were not observed. The mortar samples were prepared and their unconfined compressive strengths (UCS) were determined after curing periods of 28 days. It was observed that using of waste fuels in the production of cement did not adversely affect the UCS values comparing with the results of the standard Portland cement. Toxicity Characteristics Leaching Procedure (TCLP) of Environmental Protection Agency (USEPA) was applied to the mortar samples after 28 days of curing. Heavy metal concentrations were measured in the TCLP extracts. The leaching results were compared with the hazardous waste landfilling limits of EPA and Hazardous Waste Control Regulations of Turkey. Heavy metal concentrations leached from the mortars were found to be below the landfilling criteria. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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