Publisher : The Korean Institute of Building Construction
DOI : 10.5345/JKIBC.2016.16.1.025
Title & Authors
Evaluation of the Exothermic Properties and Reproducibility of Concrete Containing Electro-conductive Materials Song, Dong-Geun; Cho, Hyeong-Kyu; Lee, Han-Seung;
From 1990`s, a study on the development of exothermic concrete, a concrete which electro-conductive material is mixed, has been proceeded. However, due to the difficulty of exothermic reproducibility of concrete specimen, the study has been unable to continuously carried out. Accordingly, this study was focused on developing an exothermic concrete for the purpose of snow-melting material. Cement paste and mortar specimens mixed with graphite, conductive metal powder and chemical admixture were made. The evaluation of exothermic performance and reproducibility was conducted under of low temperature. In addition, micro-chemical analysis was carried out to investigate a cause of exothermic reproducibility. As a test result, the specimen mixed with graphite and superplasticizer with air entrained showed the best exothermic performance and reproducibility. Through micro-chemical analysis, it is judged that polymer or methacrylic acid (MAA), the contents inside the superplasticizer with air entrained, gave exothermic reproducibility by generating the electrochemical reaction with graphite.
Kang SH, Koo Js. Balyeol konkeuriteuui teukseong-e gwanhan yeongu [A study on the properties of heat generating concrete]. Journal of the Korea Ready Mixed Concrete Industry Association (collection of treatises). 1999;10(61):36-51
Kim SW, Kim JY, Lee KH, Sin YT. Cost analysis of the floor heating system used electric conduction concrete. Seoul (Korea): Korea National Housing Corporation; 1998. 96 p. Report No.: Mono1199809934.
Son YJ. A study on the physical properties of mortar containing conductive materials [mater's thesis]. [Seosan (Korea)]: Hanseo University; 2010. 53 p
Kang SH, Koo JS. Doro-yungseolyong balyeol konkeuriteuui gaebal mit jeokyongsarye [Development and case review of heat generating concrete for road deicing]. Journal of the Korean Society of Civil Engineers. 1999 Jan;47(1):27-35
Yoo HH, Min JH, Jang MS, Park HS, Hong SH, Woo JS, Kim HS, Kim JS, Kim SK, Hong KS (Korea Institute of Energy Research, Daejeon, Korea). R&D of Floor Heating Panel made of Electro-conduction Concrete. Final report Dec 1998-6. Korea: Ministry Commerce, Industry & Energy (Korea):1998. 209 p. Report No.:96-E-BD05-P-66 / KIER-973432. Contract No.: GOVP1200000012.
Park SJ, Won C, Lee SS, Kwon YH, Park CL. A Study on the Electrical Characteristics of Heat-generation Mortar mixing Graphite. Journal of the Concrete Institute of Korea. 1997;9(2):137-42
Park SJ. Jeongi jeondo moleuteoui balyeol teukseong-e gwanhan silheomjeok yeongu [An Experimental Study on Heat-generation Characteristics of electro-conductive Mortar] [mater's thesis]. [Cheongju (Korea)]: Cheongju University; 1997. 80 p
Lee SJ. heukyeonui jongryuwa yongdo [Types and uses of graphite]. Journal of the Mineralogical Society of Korea (Mineral & Industry). 2000;13(2):40-50