Abstract
Nano-refined epoxy paste is formulated using the optimum fractions of nano-silica fume and graphite powder to effectively encapsulate the aggregate storing phase change materials. The refined recipe offered delays in setting by 3–3.5 hrs accompanied with 15 times reduction in the thickness of coated layer, contributing in added workability, reduced consumption and strong adhesion to the established interfacial bond. The developed macro encapsulated phase change materials were found to be thermally stable, chemically compatible and thermally reliable. The melting and freezing temperatures were determined as 17.12 °C and 32.90 °C respectively with the latent heat storage capacity of 12.6 J/g. The developed thermocrete via 100% integration of macro-encapsulated aggregates showed compressive strength of more than 15 MPa and owed the potential to conserve energy by lowering the internal temperature (6.4 °C), resistance to high fluctuation in temperature while maintaining a narrow range (22 °C−30.2 °C) and by shifting the energy loads during peak periods (15-min).
| Original language | English |
|---|---|
| Article number | 116768 |
| Journal | Construction and Building Materials |
| Volume | 228 |
| DOIs | |
| Publication status | Published - Dec 20 2019 |
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Keywords
- Macro-encapsulated phase change materials
- Nano-silica fume
- Paraffin
- Phase change materials
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Materials Science(all)
Cite this
Development of structural thermal energy storage concrete using paraffin intruded lightweight aggregate with nano-refined modified encapsulation paste layer. / Afgan, Sher; Khushnood, Rao Arsalan; Memon, Shazim; Iqbal, Naseem.
In: Construction and Building Materials, Vol. 228, 116768, 20.12.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of structural thermal energy storage concrete using paraffin intruded lightweight aggregate with nano-refined modified encapsulation paste layer
AU - Afgan, Sher
AU - Khushnood, Rao Arsalan
AU - Memon, Shazim
AU - Iqbal, Naseem
PY - 2019/12/20
Y1 - 2019/12/20
N2 - Nano-refined epoxy paste is formulated using the optimum fractions of nano-silica fume and graphite powder to effectively encapsulate the aggregate storing phase change materials. The refined recipe offered delays in setting by 3–3.5 hrs accompanied with 15 times reduction in the thickness of coated layer, contributing in added workability, reduced consumption and strong adhesion to the established interfacial bond. The developed macro encapsulated phase change materials were found to be thermally stable, chemically compatible and thermally reliable. The melting and freezing temperatures were determined as 17.12 °C and 32.90 °C respectively with the latent heat storage capacity of 12.6 J/g. The developed thermocrete via 100% integration of macro-encapsulated aggregates showed compressive strength of more than 15 MPa and owed the potential to conserve energy by lowering the internal temperature (6.4 °C), resistance to high fluctuation in temperature while maintaining a narrow range (22 °C−30.2 °C) and by shifting the energy loads during peak periods (15-min).
AB - Nano-refined epoxy paste is formulated using the optimum fractions of nano-silica fume and graphite powder to effectively encapsulate the aggregate storing phase change materials. The refined recipe offered delays in setting by 3–3.5 hrs accompanied with 15 times reduction in the thickness of coated layer, contributing in added workability, reduced consumption and strong adhesion to the established interfacial bond. The developed macro encapsulated phase change materials were found to be thermally stable, chemically compatible and thermally reliable. The melting and freezing temperatures were determined as 17.12 °C and 32.90 °C respectively with the latent heat storage capacity of 12.6 J/g. The developed thermocrete via 100% integration of macro-encapsulated aggregates showed compressive strength of more than 15 MPa and owed the potential to conserve energy by lowering the internal temperature (6.4 °C), resistance to high fluctuation in temperature while maintaining a narrow range (22 °C−30.2 °C) and by shifting the energy loads during peak periods (15-min).
KW - Macro-encapsulated phase change materials
KW - Nano-silica fume
KW - Paraffin
KW - Phase change materials
UR - http://www.scopus.com/inward/record.url?scp=85071399767&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85071399767&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2019.116768
DO - 10.1016/j.conbuildmat.2019.116768
M3 - Article
VL - 228
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
M1 - 116768
ER -