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DESCRIPTIONAnti-icing Study at O’Hare International Airport Professor: Barry J. Dempsey Graduate Asst.: Nathan M. Carroll. BRIEF HISTORY. Winter of 2002, phase I testing began on textured aggregate coatings. These Anti-icing Smart Pavement Overlays were evaluated for durability. - PowerPoint PPT Presentation
Anti-icing Study at OHare International Airport
Professor: Barry J. DempseyGraduate Asst.: Nathan M. Carroll
BRIEF HISTORYWinter of 2002, phase I testing began on textured aggregate coatings.These Anti-icing Smart Pavement Overlays were evaluated for durability.Preliminary observations demonstrate feasibility of installation process and durability.Phase II began with installation of observation bed at OHare.
THE THEORYThe pavement overlay is placed on an existing pavement surface.Anti-icing chemical is applied prior to icing conditions.Icing conditions occur.Anti-icing chemical are released from pavement.Ice melts.
OUR GOALTo perform a comprehensive observation of the test pavement under controlled conditions.
To perform complete analysis of all recovered data to determine the durability, performance and surface friction characteristics of the anti-icing pavement.
Operations & Maintenance
VisualOn-sight observation of entire test bed.
Real time video feed of taxiway (24/7).
Weather ConditionsDaily climatic data collected from NOAA.
Climatic data utilized in the Enhanced Climatic Model (ECM).
Surface temperatures monitored with existing sensors.
Operations and MaintenanceUse of observational video to determine all activities that occur on the pavement along with quantity and duration of activities.
Documentation of O & Ms daily log of activities for correlation with video observation.
Equipment: De-icer and Brushes
INITIAL ACTIVITESCamera system installed and fully operational by end of October
Run friction tests to establish baseline for anti-icing pavement and control.
Take core samples from test site
TIMELINENovember 1, 2004Begin complete observations of test pavementJanuary 1, 2005Submit interim report on findingsApril 1, 2005Begin intense analysis of all accumulated dataAugust 2005Submit Final Report
Preliminary research conducted at the FAA Willliam J. Hughes Technical Center and the Michigan Technological University Keweenaw Research Center (KRC).