Research on the Contribution of Copper and Ferro-chrome Slags to the Thermal Conductivity of Buffer Materials Around Energy Geo-structures

Asci C., YÜKSELEN AKSOY Y.

Proceedings of the 3rd International Conference on Environmental Geotechnology, Recycled Waste Materials and Sustainable Engineering (EGRWSE 2022), İzmir, Turkey, 15 - 17 September 2022, vol.370 LNCE, pp.125-132 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 370 LNCE
  • Doi Number: 10.1007/978-981-99-4041-7_13
  • City: İzmir
  • Country: Turkey
  • Page Numbers: pp.125-132
  • Keywords: Copper slag, Energy geo-structures, Ferro chrome slag, Thermal conductivity
  • Dokuz Eylül University Affiliated: Yes

Abstract

In the present study, it was aimed to develop a thermally conductive soil materials for energy geo structures so that increase the performance of energy geostructures. In general, slags are known as high level hazardous waste. However, copper slag and ferro-chrome slag were chosen as soil additives because their contaminant levels are low. In this research, slags were used in sand-bentonite and bentonite mixtures in order to increase thermal conductivity of soils for the geo-energy structures such as heat piles and nuclear waste repositories. The thermal conductivities of the samples were measured at various dry unit weight and optimum water content values and the thermal conductivity range of the mixtures will be given.