Mix designs for cold recycled pavement materials considering local weather and traffic conditions Konrad Mollenhauer 1, a , Diana Simnofske 1, b , Jan Valentin 2, c , Zuzana Čížková 2, d , Jan Suda 2, e , Fátima Batista 3, f , Ciaran McNally 4, g 1 Department for Road Construction and Maintenance, University of Kassel, Kassel, Germany 2 Department of Road Structures, Czech Technical University in Prague, Faculty of Civil Engineering, Praha, Czech Republic 3 Laboratório Nacional de Engenharia Civil, I.P., Lisabon, Portugal 4 University College Dublin, Dublin, Ireland a [email protected] b [email protected] c [email protected] d [email protected] e [email protected] f [email protected] g [email protected] Digital Object Identifier (DOI): dx.doi.org/10.14311/EE.2016.357 ABSTRACT Cold recycling is a road rehabilitation procedure/technique, where the reclaimed road material from rehabilitated pavements is recycled completely and used in the new structure with only small contents of new road materials. This is done preferably in-situ to save time, costs and environment. However, internationally various mix design procedures were developed since decades resulting in diverse contents of bituminous binders (emulsion or foamed bitumen) and/or mineral binders (cement or hydraulic road binder). The different material compositions result in diverse mechanical material properties and demand for different pavement designs. Based on an international comparison of cold recycling experience, commons and differences were elaborated during European CoRePaSol project funded by the CEDR. The existing definitions of various cold recycled materials were assessed and supplemented in order to introduce clear material definitions in future European specification documents. Based on intensive test campaigns suitable assessment procedures are proposed to address these materials. At the same time based on local traffic and weather conditions as well as availability of source materials, a decision model is proposed for choosing the optimum cold recycling material for the given rehabilitation project. Keywords: Design Mix, In-situ Recycling, Performance testing, Reclaimed asphalt pavement (RAP) Recycling E&E Congress 2016 | 6th Eurasphalt & Eurobitume Congress | 1-3 June 2016 | Prague, Czech Republic
Mix designs for cold recycled pavement materials considering local weather and traffic conditions
Jun 24, 2023
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