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Assessment of PCM/SiC-based composite aggregate in concrete: Mechanical, physical and microstructural properties

Title
Assessment of PCM/SiC-based composite aggregate in concrete: Mechanical, physical and microstructural properties
Author
유재석
Keywords
Composite aggregate; Thermal energy storage; Paraffin wax; Silicon carbide; Compressive strength; FTIR; XRD; SEM
Issue Date
2020-07
Publisher
ELSEVIER SCI LTD
Citation
CONSTRUCTION AND BUILDING MATERIALS, v. 262, article no. 120088
Abstract
This study used PCM/SiC-based composite aggregates made using slag aggregate, paraffin wax, and silicon carbide. Concrete samples were prepared by replacing natural coarse aggregates with PCM/SiC-based composite aggregates at various replacement ratios. Compressive strength tests, Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, and scanning electron microscopyenergy dispersive microscopy analysis were carried out to investigate the mechanical, physical, and microstructural properties of concrete samples. The results reveal that physical properties of the concrete samples made with PCM/SiC-based composite aggregate were less desirable than those made without PCM/SiC-based composite aggregates. However, the targeted designed strength was not compromised with the addition of PCM/SiC-based composite aggregate. The results of microstructural analyses confirmed the presence of various hydration products, paraffin wax, and SiC particles in the cement composites.
URI
https://www.sciencedirect.com/science/article/pii/S0950061820320936?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/169401
ISSN
0950-0618; 1879-0526
DOI
10.1016/j.conbuildmat.2020.120088
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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