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Showing 1 to 20 of 27 for “"rutting resistance"”.
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Evaluation of rutting resistance of coarse graded aggregate asphaltic concrete mixes in Clark County, Nevada
… in asphaltic concrete pavements for reducing rutting in Clark County, Nevada. Previous specifications used for asphaltic concrete mix designs in the Clark County area allowed for a wide range of aggregate gradations. The aggregate gradations in the asphaltic concrete mixes produced from these …
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A Laboratory Study on the Effect of High Rap and High Asphalt Binder Content on the Performance of Asphalt Concrete
… criteria: stiffness (dynamic modulus), fatigue resistance (flexural beam), and rutting resistance (flow number). Results showed that a 0.5% increase in binder content improved both the fatigue and rutting resistance of the 0% and 20% RAP mixes with only slight decreases in dynamic modulus. …
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Evaluation of Nevada's Warm Mix Asphalt Mixtures with Recycled Asphalt Pavements
… four WMA mixtures satisfied all the criteria for resistance to moisture damage with or without RAP for all the aggregate sources used. In terms of fatigue, the WMA mixtures showed better results than the HMA mixture. But for the rutting resistance all of the WMA mixtures showed lower values than …
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Optimizing the Use of Reclaimed Asphalt Pavement (RAP) in Hot Mix Asphalt Surface Mixes
… to optimize the design of the mix, in terms of rutting and fatigue resistance, when more RAP is used. In the first study, a high RAP control mix and an optimized mix designed using different design compaction energy (65 and 50 gyrations respectively) were compared. The optimization process …
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Analysis of Fine Asphalt Concrete Mixture Gradations from Various Sources to Enhance Durability
… content and therefore higher moisture damage resistance. This is because the finer aggregates tend to fill the voids that were otherwise not filled by the coarse aggregates. This will lead to enhanced durability because less water and air can penetrate the mix, leading to less oxidation and …
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Characterization of Polymer Modified Asphalt Binders Containing Processed Oil
… workability, while the modifiers improve the rutting resistance of them, however, the addition of processed oil reduces the binder’s rutting performance due to decrement of viscosity. The study also found that the conjugating of modifying polymers and processed oil improves the low temperature …
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Performance Characterization of Recycled Asphalt Pavements with Warm Mix Asphalt Technologies
… designed mixtures were evaluated for moisture resistance, dynamic modulus, rutting resistance and thermal resistance behavior. Moisture resistance of the mixtures were evaluated by performing the indirect tensile strength test for 0 and 1 freeze-thaw cycles. Resistance to rutting was evaluated …
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Laboratory assessment of asphalt concrete durability utilizing balance mix design
… This study focused on assessing the cracking and rutting potential of the studies mixes using the Illinois Flexibility Index Test (I-FIT) and the Hamburg Wheel Track Test (HWTT). Additionally, mix stiffness and moisture damage susceptibility were evaluated using the output data from I-FIT and …
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The Development of Initial Asphalt Mixture Acceptance Criteria Using the SCB test and the I-FIT Test
… other states have implemented a test to measure rutting resistance. This paper presents research to implement a cracking resistance test to further modify the Superpave volumetric asphalt mixture design method in Arkansas. The Illinois Flexibility Index Test (I-FIT) was the test chosen to analyze …
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Evaluation of Balanced Asphalt Surface Mixtures with Conventional and High RAP Contents Using Laboratory and Accelerated Pavement Testing
… to address predominant distresses such as rutting and cracking. This approach offers an avenue to properly design and produce engineered asphalt mixtures, including those with high reclaimed asphalt pavement (HRAP) contents, recycling agents (RAs), fibers, and polymer-modified binders. …
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Laboratory Evaluation of Warm Mix Asphalt Mixtures in South Dakota, USA
… may be more susceptible to moisture damage and rutting than traditional HMA mixtures.The objective of this research was to evaluate various types of WMA paving technologies relative to HMA mixtures to determine their suitability for use in South Dakota in various applications. This objective was …
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Design of Cold-In-Place Recycling using Superpave gyratory compactor
… superposition principle. Furthermore, the rutting resistance of all the CIR mixtures were also evaluated in term of the flow number.
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Balanced Mix Design of Asphalt Mixtures for Intersections
Rutting and shoving are the most common distresses found at intersections. Realizing the need for different asphalt mixtures at or near intersections, a past cooperative research between University of Nevada, Reno (UNR) and Nevada Department of Transportation (NDOT) recommended a new gradation …
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Performance Characteristics of Polyethylene Terephthalate (PET) Modified Asphalt
… tests included Asphalt Pavement Analyzer (APA) rutting test, retrofitted APA Hamburg test, Indirect Tensile Strength (ITS), and Asphalt mixture Performance Tester (AMPT) dynamic modulus. The results showed: 1) the addition of PET increased the high temperature performance resulting in a bump in …
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Development and validation of a novel testing procedure for the evaluation of rutting susceptibility of bituminous binders.
… reported herein deals with evaluation of rutting susceptibility of different asphalt binders thorough various parameters and correlating them with parameters resulted from tests carried out on their corresponding mixtures. Several factors influence the occurrence of rutting in asphalt …
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Performance of recycled polymeric fiber as reinforcement in bituminous mixture for road maintenance works
… RPET FC mixture has improved by 120% whereas for rutting resistance of RPET FC mixture has improved by 32% compared to control mixture. A field test was also conducted in this research. After 500 vehicular passes at service temperature (45oC), deformation resistance in the reinforced test pit has …
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Performance of hot mix asphalt using peat modified asphalt binder
… weight peat substructure. Based on the SHRP rutting parameters, adding PNpt decreases rutting for the binder at high temperature rheological properties indicated that 5% PNpt or PNpt.M.A. 5 is the optimum content as a modifier with asphalt. After the optimum content of PNpt, tests were …
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Performance of advera® warm mix asphalt with reclaimed asphalt pavement materials
… total mass were evaluated for resilient modulus, rutting and moisture susceptibility. The results show that Advera®. modified binder significantly reduced mixing and compaction temperatures. Modified binder with 5% Advera® show significant increase in rutting resistance for both unaged and short …
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Performance evaluation of warm mix asphalt mixtures incorporating reclaimed asphalt pavement
… WMA technologies can increase moisture and rutting susceptibility while RAP significantly increases the stiffness of the resulting mixture. Consequently, quality performance of sustainable asphalt pavements may require the combined use of WMA and RAP to produce mixtures with sufficient …
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Mechanistic-Empirical Evaluation of the Mn/ROAD Low-Volume Road Test Sections
… and permanent deformation tests show that the rutting potential of a granular material can be characterized from rapid shear test at 15-psi confining pressure. The rapid shear test results at 15-psi confining pressure reflect the rutting trends observed in the field. There is no significant …
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