Re-cementation of Crushed Material in Pavement Bases

L. Chai, C. L. Monismith and J. Harvey

Institute of Transportation Studies, Working Paper Series from Institute of Transportation Studies, UC Davis

Abstract: When recycled crushed concrete and crushed cement-treated materials have been used in pavement bases and subbases, increases in stiffness have been observed. This stiffness increase has been attributed to re-cementation of these materials. To evaluate this phenomenon, four projects that used these recycled materials and for which data are available have been studied. Two of the projects are pavements that had been subjected to Heavy Vehicle Simulator (HVS) testing at University of California Pavement Research Center (UCPRC) test sites at the Richmond Field Station, the third is an HVS study conducted by Council for Scientific and Industrial Research (CSIR) on an in-service pavement in South Africa (2004), and the fourth is the periodic evaluation of the Phase One rehabilitation of the I-710 Freeway in Long Beach, California, which has been subjected to traffic over a five-year period (2003–2008). This technical memorandum presents the results of these studies with recommendations for design parameters to use with these materials in pavement design methodologies.

Keywords: Engineering (search for similar items in EconPapers)
Date: 2009-10-01
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