Examining the effects of microencapsulated phase change materials on early-age temperature evolutions in realistic pavement geometries

Zhenyu She, Zhenhua Wei, Benjamin A. Young, Gabriel Falzone, Narayanan Neithalath, Gaurav Sant, Laurent Pilon

Research output: Contribution to journalArticle

Abstract

This study examines experimentally and numerically the effects of microencapsulated phase change material (PCM)additions on temperature rise and cool-down rate, and the associated impact on reducing the risk of thermal cracking in concrete pavements. Specimens representative of a realistic pavement geometry were exposed to diurnal temperature cycling at early ages while internal temperature evolutions were monitored. In spite of the fact that the lower thermal conductivity of the PCM inhibited heat dissipation, the results showed the presence of PCMs can reduce considerably the temperature rise and cool-down rate in the first 24 h following placement provided the PCM melting temperature is chosen suitably. A transient one-dimensional thermal model of a pavement section suitably captured experimental temperature evolutions and thereby offers the ability to inform the design of concrete pavements containing PCMs that feature early-age thermal cracking resistance.

Original languageEnglish (US)
Pages (from-to)149-159
Number of pages11
JournalCement and Concrete Composites
Volume103
DOIs
StatePublished - Oct 1 2019
Externally publishedYes

Fingerprint

Phase change materials
Pavements
Geometry
Concrete pavements
Pulse code modulation
Temperature
Heat losses
Melting point
Thermal conductivity
Hot Temperature

Keywords

  • Cement hydration
  • Concrete pavement
  • Early-age cracking
  • Microencapsulated phase change materials
  • Water-reducing admixture

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

Cite this

Examining the effects of microencapsulated phase change materials on early-age temperature evolutions in realistic pavement geometries. / She, Zhenyu; Wei, Zhenhua; Young, Benjamin A.; Falzone, Gabriel; Neithalath, Narayanan; Sant, Gaurav; Pilon, Laurent.

In: Cement and Concrete Composites, Vol. 103, 01.10.2019, p. 149-159.

Research output: Contribution to journalArticle

She, Zhenyu ; Wei, Zhenhua ; Young, Benjamin A. ; Falzone, Gabriel ; Neithalath, Narayanan ; Sant, Gaurav ; Pilon, Laurent. / Examining the effects of microencapsulated phase change materials on early-age temperature evolutions in realistic pavement geometries. In: Cement and Concrete Composites. 2019 ; Vol. 103. pp. 149-159.
@article{b7449c3b8f1648ce85f11035d289a130,
title = "Examining the effects of microencapsulated phase change materials on early-age temperature evolutions in realistic pavement geometries",
abstract = "This study examines experimentally and numerically the effects of microencapsulated phase change material (PCM)additions on temperature rise and cool-down rate, and the associated impact on reducing the risk of thermal cracking in concrete pavements. Specimens representative of a realistic pavement geometry were exposed to diurnal temperature cycling at early ages while internal temperature evolutions were monitored. In spite of the fact that the lower thermal conductivity of the PCM inhibited heat dissipation, the results showed the presence of PCMs can reduce considerably the temperature rise and cool-down rate in the first 24 h following placement provided the PCM melting temperature is chosen suitably. A transient one-dimensional thermal model of a pavement section suitably captured experimental temperature evolutions and thereby offers the ability to inform the design of concrete pavements containing PCMs that feature early-age thermal cracking resistance.",
keywords = "Cement hydration, Concrete pavement, Early-age cracking, Microencapsulated phase change materials, Water-reducing admixture",
author = "Zhenyu She and Zhenhua Wei and Young, {Benjamin A.} and Gabriel Falzone and Narayanan Neithalath and Gaurav Sant and Laurent Pilon",
year = "2019",
month = "10",
day = "1",
doi = "10.1016/j.cemconcomp.2019.04.002",
language = "English (US)",
volume = "103",
pages = "149--159",
journal = "Cement and Concrete Composites",
issn = "0958-9465",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Examining the effects of microencapsulated phase change materials on early-age temperature evolutions in realistic pavement geometries

AU - She, Zhenyu

AU - Wei, Zhenhua

AU - Young, Benjamin A.

AU - Falzone, Gabriel

AU - Neithalath, Narayanan

AU - Sant, Gaurav

AU - Pilon, Laurent

PY - 2019/10/1

Y1 - 2019/10/1

N2 - This study examines experimentally and numerically the effects of microencapsulated phase change material (PCM)additions on temperature rise and cool-down rate, and the associated impact on reducing the risk of thermal cracking in concrete pavements. Specimens representative of a realistic pavement geometry were exposed to diurnal temperature cycling at early ages while internal temperature evolutions were monitored. In spite of the fact that the lower thermal conductivity of the PCM inhibited heat dissipation, the results showed the presence of PCMs can reduce considerably the temperature rise and cool-down rate in the first 24 h following placement provided the PCM melting temperature is chosen suitably. A transient one-dimensional thermal model of a pavement section suitably captured experimental temperature evolutions and thereby offers the ability to inform the design of concrete pavements containing PCMs that feature early-age thermal cracking resistance.

AB - This study examines experimentally and numerically the effects of microencapsulated phase change material (PCM)additions on temperature rise and cool-down rate, and the associated impact on reducing the risk of thermal cracking in concrete pavements. Specimens representative of a realistic pavement geometry were exposed to diurnal temperature cycling at early ages while internal temperature evolutions were monitored. In spite of the fact that the lower thermal conductivity of the PCM inhibited heat dissipation, the results showed the presence of PCMs can reduce considerably the temperature rise and cool-down rate in the first 24 h following placement provided the PCM melting temperature is chosen suitably. A transient one-dimensional thermal model of a pavement section suitably captured experimental temperature evolutions and thereby offers the ability to inform the design of concrete pavements containing PCMs that feature early-age thermal cracking resistance.

KW - Cement hydration

KW - Concrete pavement

KW - Early-age cracking

KW - Microencapsulated phase change materials

KW - Water-reducing admixture

UR - http://www.scopus.com/inward/record.url?scp=85065516303&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065516303&partnerID=8YFLogxK

U2 - 10.1016/j.cemconcomp.2019.04.002

DO - 10.1016/j.cemconcomp.2019.04.002

M3 - Article

VL - 103

SP - 149

EP - 159

JO - Cement and Concrete Composites

JF - Cement and Concrete Composites

SN - 0958-9465

ER -