![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
Functionality of concrete pavements can be restored through conventional diamond grinding (CDG) that improves ride quality and friction. Recently, an alternative diamond grinding configuration was proposed by the Institute for Safe Quiet and Durable Highway at Purdue University as part of a nationwide interest in quiet pavements. This paper discusses the field-testing of the CDG and alternative (innovative) diamond grinding as well as the pre-existing transverse tined (TT) texture at the MnROAD research facility. Acoustic properties, ride quality and friction performance of the diamond ground surfaces are compared to data obtained in the pre-existing TT surface. The initial performance of the innovative grind over a period of 3 years is also compared to that of the conventional grind and the TT surface. Test results, analysis, merits and demerits of the grinding types are also accentuated.
Acknowledgements
Minnesota Department of Transportation provided the equipment to measure OBSI, friction and IRI in this study. Erland Lukanen provided useful comments. Larry Scofield of American Concrete Paving Association, Terrence Kraemer of Diamond Surface Incorporated and International Grinding and Grooving Association as well as Mark Swanlund of FHWA facilitated the diamond grinding initiative at the MnROAD research facility.
Disclaimer: This paper neither promotes nor purports to promote any standard for material and/or process. It represents results of research conducted by the authors and not necessarily the opinion of the University of Minnesota or the Minnesota Department of Transportation or other agency.