Mechanical and thermal properties of artificial stone finishing materials mixed with PCM impregnated lightweight aggregate and carbon material

Young Uk Kim, Ji Hun Park, Beom Yeol Yun, Sungwoong Yang, Seunghwan Wi, Sumin Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

In this study, lightweight aggregates and carbon materials were impregnated with a phase change material (PCM) to improve the thermal performance of artificial stone used as an interior finishing material. The PCM used was n-octadecane; the carbon materials used in the mixture were exfoliated graphite nanoplatelets, activated carbon, and biochar. The compressive strength was slightly lower in the specimens with PCM; it was found that PCM can affect the adhesion of the cement paste and aggregate. When carbon materials are used in the mixtures, the thermal conductivity is improved. Depending on the type and amount of carbon material added, the thermal conductivity can be improved and the peak temperature adjusted. The combination of PCM and carbon materials allows for high latent heat capacity, efficient use of thermal energy through efficient storage and release, sustainable thermal stability and durability, and peak temperature control.

Original languageEnglish
Article number121882
JournalConstruction and Building Materials
Volume272
DOIs
Publication statusPublished - 2021 Feb 22

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (No. 2019R1A2C4100284).

Publisher Copyright:
© 2020 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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