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ERDC/GSL TR-16-13 Flatliner Cold Planer Evaluation for Airfield Pavement Maintenance Geotechnical and Structures Laboratory John F. Rushing, Anthony J. Falls, and Craig A. Rutland June 2016 Approved for public release; distribution is unlimited. The U.S. Army Engineer Research and Development Center (ERDC) solves the nation’s toughest engineering and environmental challenges. ERDC develops innovative solutions in civil and military engineering, geospatial sciences, water resources, and environmental sciences for the Army, the Department of Defense, civilian agencies, and our nation’s public good. Find out more at www.erdc.usace.army.mil. To search for other technical reports published by ERDC, visit the ERDC online library at http://acwc.sdp.sirsi.net/client/default. ERDC/GSL TR-16-13 June 2016 Flatliner Cold Planer Evaluation for Airfield Pavement Maintenance John F. Rushing and Anthony J. Falls Geotechnical and Structures Laboratory U.S. Army Engineer Research and Development Center 3909 Halls Ferry Road Vicksburg, MS 39180-6199 Craig A. Rutland, PhD Engineering Division Civil Engineering Branch Air Force Civil Engineer Center 139 Barnes Drive, Suite 1 Tyndall AFB, FL 32403 Final report Approved for public release; distribution is unlimited. Prepared for Headquarters, Air Force Civil Engineer Center Tyndall Air Force Base, FL 32403-5319 Under Airfield Damage Repair Modernization Program Project Number 333159 ERDC/GSL TR-16-13 ii Abstract The U.S. Army Engineer Research and Development Center evaluated tools and procedures for removing small surface irregularities in airfield pavement repairs that cause unacceptable roughness for aircraft. A desirable tool could grind pavement surfaces smooth and flush. A Flatliner cold planer skid steer attachment was identified as a potential device and was used in a field evaluation. The field evaluation considered production rate, smoothness of the treated pavement, and tooth wear for airfield pavement repairs made on Portland

The U.S. Army Engineer Research and Development Center recently began a research project to evaluate pavement preservation techniques for asphalt pavements on Army airfields. Three field sites were selected for testing. Field sites represented the following climatic regions: hot and wet, hot and dry, and cold. Each of the test sites was on a taxiway or parking apron pavement on an Army airfield. Commercially available products marketed for pavement preservation were placed at each site. Existing pavements were in good condition, and all exhibited only minor longitudinal or transverse cracking and limited weathering. Preliminary data were collected by evaluating pavement surface properties and by extracting pavement cores prior to placement of the surface treatment. Additional tests were performed after product placement. Annual evaluations will provide comparable data to quantify the benefit of the treatment based on its ability to reduce environmental distresses. This report provides information on the products placed at each site as well as pavement conditions before product placement., The original document contains color images.