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http://dx.doi.org/10.14481/jkges.2016.17.6.5

Thermal Resistance Characteristics of the Backfill Material with Bottom Ash  

Jung, Hyuksang (Department of Railroad and Civil Engineering, Dongyang University)
Cho, Sam-Deok (Geotechnical Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Kim, Ju-Hyong (Geotechnical Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Park, Jongsik (Daewoo Shipbuilding & Marine Engineering R&D Institute (DSME))
Kong, Jin-Young (Geotechnical Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Korean GEO-environmental Society / v.17, no.6, 2016 , pp. 5-12 More about this Journal
Abstract
This paper deals with the result of thermal resistance test with backfill materials as bottom ash by using backfill material. Bottom ash, one of coal ashes, can be reused to replace sand because of its similar engineering properties. But without considering the thermal property, the abuse of bottom ash resulted in damage for existing structures. To investigate the thermal conductivity of bottom ash, laboratory tests for thermal resistance of that were carried out in this study. Thermal properties of bottom ash was compared with those of in-situ soil, sand, backfill material which can be applied as filling material. The tests were classified by water contents defined as the major influence factor. The beneficial use method of bottom ash was suggested as backfilling material.
Keywords
Coal ash; Bottom ash; Thermal resistance; Thermal conductivity;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 IEC (1999), IEC60287-3-1, Electric cables, pp. 4-6.
2 IEEE Std. 442 (1981), IEEE guide for soil thermal resistivity measurements, pp. 2.
3 IEEE Std. 525 (2007), IEEE guide for the design and installation of cable systems in substations, pp. 26.
4 Kersten, M. S. (1949), Thermal properties of soil report, Bulletin of the Universty of Minnesota, Institute of Technology, pp. 55.
5 Lee, C. H., Lee, K. J., Choi, H. S. and Choi, H. B. (2009), Thermal conductivity and viscosity of graphite-added bentonite grout for backfilling ground heat exchanger, Korea Society of Geothermal Energy Engineers, Vol. 5, No. 1, pp. 19-24 (in Korean).
6 Lee, S. J., Lee, J. H., Cho, H. S. and Chun, B. S. (2012a), An experimental study on thermal conductivity of controlled low strength materials with coal ash, Korean Society of Civil and Environmental, Vol. 32, No. 3C, pp. 95-104 (in Korean).
7 Lee, J. C., Kim, G. H., Lee, Y. C., Kim, S. D., Choi, Y. K. and Kim, C. F. S. (2012b), Studying soil thermal resistivity in accordance with international standards, The Korean Institute of Illuminating and electrical Installation Engineers, Proceedings of KIIEE Annual Conference, pp. 250-260 (in Korean).
8 Oh, G. D. and Kim, D. H. (2010), Thermal resistant characteristics of flowable backfill materials using surplus soil for underground power utilities, Korean Geo-Environmental Society Vol. 11, No. 10, pp. 15-24 (in Korean).
9 Seoul Metropolitan Government (2016), Urban road subsidence cause and reinforcement, Workshop book, pp. 5-26 (in Korean).
10 Yoshinari, N., Hironori, M., Makoto, U., Hiroshi, S., Takeshi, I. and Satoshi, M. (2007), Development on the mortar material for cable systems in a directional drilling, 7th International Conference on Insulated Power Cable, Jicable, Versailles-France, pp. 684-689.