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Title: Evaluation of commercially available screeds for finishing of rapid-setting concrete
Authors: Carruth, William D.
Keywords: Rapid-setting concrete
Crater repair
Military bases
Air bases
Runways (Aeronautics)--Maintenance and repair
Concrete construction--Equipment
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/GSL TR-19-4
Abstract: The U.S. Air Force Civil Engineer Center (AFCEC) began the Rapid Airfield Damage Recovery (RADR) Modernization Program to develop technologies to address operational limitations of current RADR equipment, materials, and tactics. One of the most critical activities in the crater repair process is the finishing of rapid-setting concrete material used to cap repairs. Finished repairs must meet roughness quality criteria (RQC) in order to prevent damage to fighter aircraft. The concrete screeds used previously were consistently able to meet this criteria, however they required three dedicated personnel to operate. The quantity of crater repair team members is limited, so AFCEC desires a reduction in manpower requirements for rapid-setting concrete finishing. To address this shortfall, five commercially available screeds were evaluated by conducting a total of 14 crater repairs. Screeds were ranked according to the following attributes: (1) speed, (2) ease of setup and operation, (3) ease of transport, (4) operator exertion level, (5) cost, and (6) quality of finish. The number of personnel required to operate each screed was also recorded. The AutoSkreed® was recommended for consideration as a suitable screed, but several modifications are recommended. The vibratory manual screed and magnesium bar screed were recommended as preferred alternatives.
Description: Technical Report
Gov't Doc #: ERDC/GSL TR-19-4
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Technical Report

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