Structural and environmental benefits of concrete inlays for pavement preservation

Sushobhan Sen, Daniel King, Jeffery R. Roesler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Advances in concrete technology have allowed Flowable Fibrous Concrete (FFC) inlays to be an option for pavement preservation through rapid placement, thin-lift construction, durability, and material ductility. By incorporating titanium dioxide (TiO2) cement, these FFC inlays can also mitigate vehicular greenhouse gas emissions and the Urban Heat Island (UHI) as well as meet structural requirements. A concrete mix incorporating this modified FFC was lab-tested for strength and fracture properties at 7 days and was found to be acceptable for pavement preservation applications. The FFC albedo was measured as 0.26 and the predicted hourly surface temperatures of hypothetically-aged asphalt concrete pavements with and without the FFC inlay were compared over a ten-year period using weather data from Chicago, IL. With a lower surface temperature in 94% of daytime hours, the inlay was effective in mitigating daytime UHI but less effective in nighttime.

Original languageEnglish (US)
Title of host publicationAirfield and Highway Pavements 2015
Subtitle of host publicationInnovative and Cost-Effective Pavements for a Sustainable Future - Proceedings of the 2015 International Airfield and Highway Pavements Conference
EditorsJohn T. Harvey, Katie F. Chou
PublisherAmerican Society of Civil Engineers (ASCE)
Pages697-707
Number of pages11
ISBN (Electronic)9780784479216
DOIs
StatePublished - Jan 1 2015
Event2015 International Airfield and Highway Pavements Conference: Innovative and Cost-Effective Pavements for a Sustainable Future - Miami, United States
Duration: Jun 7 2015Jun 10 2015

Publication series

NameAirfield and Highway Pavements 2015: Innovative and Cost-Effective Pavements for a Sustainable Future - Proceedings of the 2015 International Airfield and Highway Pavements Conference

Other

Other2015 International Airfield and Highway Pavements Conference: Innovative and Cost-Effective Pavements for a Sustainable Future
CountryUnited States
CityMiami
Period6/7/156/10/15

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

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