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Title: Rejuvenators, rejuvenator/sealers, and seal coats for airfield pavements
Authors: United States. Air Force Civil Engineer Support Agency.
Shoenberger, James E.
Keywords: Asphalt rejuvenation
Pavement sealers
Seal coats
Bituminous pavement rejuvenation
Pavement rejuvenator
Asphalt pavements
Asphalt concrete
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/GSL TR ; 03-1.
Description: Technical Report
Abstract: There are a number of proprietary rejuvenator, rejuvenator/sealer, and a seal coat materials currently available. It should be noted that throughout this report the term rejuvenator will be used to describe both rejuvenator and rejuvenator/sealer materials, because the primary purpose in this study was to use these materials to rejuvenate the asphalt pavement. Because of the proprietary nature of these materials, specifications that use performance-based requirements rather than material requirement specifications are highly preferred. One important requirement in the development of this type of specification is a field performance comparison of the various materials with known application and material property parameters. The objective of this study was to investigate the comparative field performance of various rejuvenators and seal coat materials. The field performance of these materials was evaluated over a period of more than 1 year. The materials evaluated in this study were proprietary products. The study was not intended to determine the best or optimum rejuvenator or seal coat material but was intended to provide information for the development or updating of guide specifications for the use of these types of materials. The scope of this study was to evaluate several types of coal-tar- and petroleum-based rejuvenators and seal coat materials. The materials were placed at two airfields and their effect on the binder properties of the treated pavement was compared to untreated areas. The field performance of the rejuvenator and seal coat materials was evaluated through their effects on skid resistance, texture, and changes on visual appearance. This report covers the placement and performance of the materials included in this study. To better evaluate the performance of both the rejuvenators and seal coat materials, the field sections should be periodically evaluated over the next several years. The guide specification for bituminous rejuvenation (Appendix C) should be used and evaluated in the U.S. Air Force project. Additional investigation is required for further development of a test method for determining the effectiveness of a rejuvenator. This would involve the development of an effective means of aging both coal-tar- and asphalt-based rejuvenated asphalt cements. The rejuvenator and rejuvenator/sealer products that leave residual material on the pavement surface would require investigation to determine how much and what component of the product enters into the pavement to provide rejuvenation.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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