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- W564207615 abstract "The objective of this research project was three-fold: (1) evaluate the performance of South Carolina Department of Transportation (SCDOT) mixtures made with warm mix asphalt (WMA) technologies, (2) evaluate the effect of increased reclaimed asphalt pavement (RAP) contents on SCDOT asphalt mixtures, and (3) evaluate the influence of WMA technologies on SCDOT asphalt mixtures made with RAP. To accomplish the research objectives, the research was divided in to three separate phases, each addressing one of the three specific objectives. Additionally, an extensive literature review was conducted to establish the state-of-the-practice related to the use of WMA and RAP in asphalt mixtures. The effects of WMA technologies and RAP content on asphalt mixtures were evaluated for binders and mixtures. Two different WMA technologies (Evotherm™ and foaming) and five RAP contents (0, 20, 30, 40, and 50%) were selected for this study. SCDOT Surface Type B mix designs were conducted for hot mix asphalt (HMA) and each WMA technology using two binders and two aggregates for a total of 60 mix designs. Once the mix designs were complete, the performance of each mixture was determined by testing the indirect tensile strength, tensile strength ratio, rutting resistance, resilient modulus, and fatigue life. In addition, the effect of the WMA technologies on the relative compactability of the mixtures was also quantified as the number of gyrations required to achieve the specified height of 95 mm for the intelligent transportation system (ITS) specimens. This research yielded several conclusions and recommendations for the implementation of WMA and higher RAP contents in SCDOT asphalt paving operations." @default.
- W564207615 created "2016-06-24" @default.
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- W564207615 date "2012-10-01" @default.
- W564207615 modified "2023-09-27" @default.
- W564207615 title "Investigation of Warm Mix Asphalt (WMA) Technologies and Increased Percentages of Reclaimed Asphalt Pavement (RAP) in Asphalt Mixtures" @default.
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