Preparation and evaluation of thermal enhanced silica fume by incorporating organic PCM, for application to concrete

Su Gwang Jeong, Jisoo Jeon, Junghoon Cha, Junhyun Kim, Sumin Kim

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

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

Original languageEnglish
Pages (from-to)190-195
Number of pages6
JournalEnergy and Buildings
Volume62
DOIs
Publication statusPublished - 2013 Apr 17

Fingerprint

Silica fume
Pulse code modulation
Concretes
Composite materials
Cements
Scanning electron microscopy
Impregnation
Bending strength
Compressive strength
Hot Temperature
Durability
Tensile strength
Thermodynamic properties
Vacuum
Microstructure

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Jeong, Su Gwang ; Jeon, Jisoo ; Cha, Junghoon ; Kim, Junhyun ; Kim, Sumin. / Preparation and evaluation of thermal enhanced silica fume by incorporating organic PCM, for application to concrete. In: Energy and Buildings. 2013 ; Vol. 62. pp. 190-195.
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Preparation and evaluation of thermal enhanced silica fume by incorporating organic PCM, for application to concrete. / Jeong, Su Gwang; Jeon, Jisoo; Cha, Junghoon; Kim, Junhyun; Kim, Sumin.

In: Energy and Buildings, Vol. 62, 17.04.2013, p. 190-195.

Research output: Contribution to journalArticle

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AB - 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

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