Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 50 for “"Superpave"”.
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Investigation of cracking resistance of recycled Superpave mixtures
… cracking. This research evaluated four recycled Superpave mixtures with different RAP and RAS contents from Kansas Department of Transportation projects. Two of the mixtures contained 10% RAP and 5% RAS, while the other two mixtures contained 25% RAP but no RAS. Illinois semicircular bending and …
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Design of Cold-In-Place Recycling using Superpave gyratory compactor
The main objective of this study is to validate the proposed performance based seven step mix design procedure for Cold-In-Place Recycling using RAP from different sources and to evaluate the mechanical characteristics and performance of the designed CIR mixtures.The representative samples of …
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Evaluation of 4.75 mm Superpave mix criteria for West Virginia
… in two phases. During Phase I, evaluation of Superpave criteria for 4.75 mm LAMAS mixes, a variety of 4.75 mm NMAS limestone mixes were developed following Superpave methodology for low traffic volume. In Phase II, natural sand evaluation for 4.75 mm mixes; three approved Marshall designs were …
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Evaluation of Superpave mixtures in West Virginia using the asphalt pavement analyzer
The Superpave mix design method is widely implemented in the Unites States. Fundamental tests have been developed to assess a pavement's distress; however, those tests are time-consuming and require special equipment. Simpler tests, such as wheel tracking devices, have been developed. The most …
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Comparison of 19mm Superpave and Marshall Base II mixes in West Virginia
The Superior Performing Asphalt Pavements (Superpave(TM)) asphalt concrete mix design method was developed through Strategic Highway Program (SHRP) in 1993. With the introduction of Superpave mix design, the Marshall method of mix design is becoming obsolete for highway pavements. Superpave …
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Investigation of compaction characteristics of subbase material using the superpave gyratory compactor
… Administration's (FAA) full-scale testing and Superpave Gyratory Compactor testing to determine if the SGC is a valuable tool for the prediction of airport pavement performance and design. The practicality of the SGC was based on extensive laboratory and field testing of three unbound materials …
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Investigation of Fatigue Properties of Superpave HMA at the Virginia Smart Road
… through laboratory fatigue testing of eleven Superpave hot mix asphalt (HMA) mixtures in use at the Virginia Smart Road. Mixtures were sampled from the plant and produced in the laboratory to investigate the influence of production method. Specimens were cut from the in-situ pavement and …
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Development of a rapid test to determine moisture sensitivity of HMA (Superpave) mixtures
… cylindrical samples were fabricated using the Superpave Gyratory Compactor. Results show that although most mixes without any additive show stripping behavior, APA results do not indicate any stripping inflection points. The HWTD results show stripping inflection points. The APA results show …
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Automation of the Superpave mix design process for the West Virginia Division of Highways
… The Superior Performing Asphalt Pavements (Superpave)(TM) method was later developed to address the issues of increased traffic volumes and heavier loads on the nation's roadways. This new mix design process relies on volumetric calculations and graphs, which are cumbersome to perform by …
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Short-term Comparison of Frictional Properties of Superpave and Balance Mix Design Hot Mix Asphalt Mixes
… Currently, many state agencies use the Superpave mix design method. While the Superpave mix design improved rutting, the implemented level 1 only considered volumetric properties and not mixture performance tests. Therefore, development in the asphalt community has addressed some of the …
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Comparison of Marshall Compactor and Superpave Gyratory Compactor for Mix Design and Control of Airport Asphalt Mixtures
… compaction by either the Marshall hammer or Superpave Gyratory Compactor (SGC). The specifications require a compaction level of 50 blows or gyrations for asphalt mixtures for airfield pavements serving aircraft of 60,000 pounds or less, and 75 blows or gyrations for mixtures to support …
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Comprehensive Evaluation of Asphalt Mixtures in Arid Climatic conditions
… very recently, Kuwait has adopted the Qatari Superpave mix design procedure to improve the current condition of the asphalt pavement performance. In this study, a comprehensive evaluation of the existing Superpave mix design was undertaken, and the recommended modifications for the mix design …
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Evaluation of binder grades on rutting performance
… specifications for all paving projects and Superpave for high volume road projects. The standard binder specified in the state is a PG 64-22; for high volume roads a PG 70-22 is specified. These binders appear to be working well for most projects in the state. The Superpave guidelines have …
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Comprehensive Simulation for End -Result Specification Development
… of the old and new MOT pay factor equation for Superpave asphalt ERS was conducted, which highlighted the pros and cons of the new pay factor formula. Specific examples of how IDOT's existing ERS for Superpave HMA could be modified to reduce contractor and agency testing are also presented. An …
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Inter-laboratory variability of the Marshall test method for asphalt concrete
… be replaced as the Division transitions to the Superpave method, in the interim, the Division will continue to use the Marshall method. The objective of this project was to determine multi-laboratory precision statements for the Marshall method that the WVDOH can use in developing statistically …
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Improving the Laboratory Design of Asphalt Mixtures to Enhance Asphalt Pavement Durability
… including Indiana’s, currently use the Superpave mixture design method to design asphalt mixtures. This method specifies that the optimum asphalt content for a given gradation be selected at 4 percent air voids. During construction, these mixtures are typically compacted to 7-8 percent …
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Evaluation of the compacted aggregate resistance test
… the developing process of replacing the current Superpave standard for fine aggregate angularity.;The primary objective of this paper is to determine if there is a direct correlation between the results from the CAR test and the quality of asphalt that corresponds to the results from an Asphalt …
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Correlation between multiple stress creep recovery (MSCR) results and polymer modification of binder
… however, but in many cases traditional Superpave testing is not sensitive enough to quantify the impact of modification, dimensioning its use. Superpave Performance Grade Plus tests, are sensitive to polymer modification but are time intensive and costly, leading the New Jersey …
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Estudo do comportamento mecânico de misturas asfálticas a quente com diferentes faixas granulométricas e métodos de compactação com e sem geogrelhas
… foram realizadas através dos métodos Marshall e Superpave. Definidos os teores de projeto de ligante asfáltico para cada uma das misturas asfálticas analisadas, foram moldados corpos de prova compostos (metade do corpo de prova com a mistura asfáltica da faixa granulométrica C e a outra metade …
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