Journal
ENERGY AND BUILDINGS
Volume 62, Issue -, Pages 190-195Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2013.02.053
Keywords
PCM; Silica fume; Thermal properties; Cement; Heat storage
Funding
- National Research Foundation of Korea (NRF) grant
- Korea government (MEST) [2012-0005188]
- Advanced Track of Green Production Processing for Reducing Greenhouse Gas Emission of the KETEP grant
- Ministry of Knowledge Economy [20114010203140]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20114010203140] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Silica fume has been used as a replacement for cement, due to its high early compressive strength, high tensile and flexural strength, high bond strength, and enhanced durability of concrete. This study examined enhanced thermal performances of silica fume by incorporating organic PCMs, for applying to concrete. Three kinds of organic PCMs were incorporated into the silica fume. The silica fume/PCM composites were prepared by the vacuum impregnation method. Because silica fume has a high porous structure compared to cement, it is useful to incorporate the PCM, to enhance its thermal storage performance. The characteristics of the composites were determined by using SEM, DSC, FTIR and TGA. SEM morphology showed the micro-structure of silica fume/PCM. Also, thermal properties were examined by DSC and TGA analyses; and the chemical bonding of the composite was determined by FTIR analysis. Crown Copyright (c) 2013 Published by Elsevier B.V. All rights reserved.
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