Develop Surface Aggregate Classification of Reclaimed Asphalt Pavement [Project Summary]

US Transportation Collection2022PDFTech ReportHu, ShengZhou, FujieScullion, TomFernando, EmmanuelSouliman, MenaTexas A&M Transportation InstituteTexas Department of Transportation. Research and Technology Implementation OfficeUnited States. Department of Transportation. Federal Highway AdministrationTexas A&M Transportation InstituteUnited StatesReclaimed asphalt pavementsAggregatesAggregate mixturesTexturePavementsSkid resistance0-7025Project Summary ReportThe aggregate blended DFT value provides a good indication of the skid resistance of the corresponding mixture or pavement surface. A higher aggregate blended DFT implies a higher skid resistance for a given gradation or mixture type. According to the findings, the recommendations are as follows: \u2022 The measured RAP aggregate DFT was suggested to be employed to develop the RAP material SAC rating criteria. \u2022 The minimum required DFT values for RAP aggregate and blended aggregate were determined and recommended. \u2022 Accordingly, the preliminary criteria and guidelines for determining the blended aggregate SAC were proposed. \u2022 The proposed criteria and guidelines provide a quantitative way to evaluate and compare the aggregate and mixture skid resistance.143