January 29, 1999

ENGINEERING PROFESSOR TO RECEIVE AWARD FOR EXCELLENCE

LAWRENCE - Stephen Alan Cross, University of Kansas associate professor of civil and environmental engineering, has been selected as the recipient of the Asphalt Recycling and Reclaiming Association's (ARRA) Award for Excellence in Cold In-Place Recycling.

Cold in-place recycling (CIR) is a method of reconstructing pavement on-site without the application of heat. An asphalt emulsion is typically added as a recycling agent or binder. CIR creates a long lasting, cost-effective pavement that can be constructed with a minimum of new material.

Cross has been conducting research at KU with support from the Kansas Department of Transportation and ARRA member companies since 1992. The research has set criteria that help government agencies and private companies determine which pavement projects are suitable for CIR.

New and innovative additives including type C fly ash, a byproduct of coal combustion, and hydrated lime slurry, which both improve CIR pavement performance, are other benefits of the research. Use of the research results have doubled the life expectancy of CIR-rehabilitated pavements in Kansas road projects.

ARRA presents the annual award to public officials and consulting engineers who make outstanding contributions to the asphalt industry. Cross will receive the award at ARRA's 23rd annual meeting Feb. 20 in Tempe, Ariz.

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