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 9 of 9 for “"Repeated load triaxial"”.
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Performance-based evaluation of unbound aggregates affecting mechanistic response and performance of flexible pavements
… in flexible pavements is to distribute wheel loads and provide adequate protection of the subgrade. However, the empirical strength based quality evaluations and current “recipe-based” specifications have little direct consideration of the actual performance of materials used in unbound …
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Permanent Deformation Behaviour of Unbound Granular Materials in Pavement Constructions
… be described that utilizes test results from the Repeated Load Triaxial Apparatus to establish the risk level of permanent deformations in the unbound granular layers (UGL) in pavement constructions under consideration of the seasonal effects. From this data a serviceability limit line (plastic …
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Comparative Evaluation of Field and Laboratory-Produced Foamed Asphalt Mixture from Reno, Nevada
… deformation was evaluated through the use of the repeated load triaxial (RLT) to measure the flow number (FN). The low-temperature cracking resistance of the mixtures was evaluated using the thermal stress restrained specimen test (TSRST). From this study it was determined that the HMA had better …
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Impact of Lime on the Mechanical Properties of HMA Mixtures in Nevada
… The asphalt pavement analyzer test and the repeated load triaxial test were used to evaluate the permanent deformation of the mixtures. The flexural beam test was used to assess the fatigue resistance and the thermal stress restrained specimen test was conducted to evaluate thermal cracking …
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Hveem Mix Design and Engineering Properties of Cold In-Place Recycling Mixtures
… resistance to permanent deformation using the Repeated Load Triaxial test (RLT). Dynamic modulus tests were conducted using the Asphalt Mixture Performance Tester (AMPT) device and the master curves were built using AASHTO-R84 standard procedure for asphalt mixtures with few modifications. RLT …
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Permanent Deformation Behavior of Airport Flexible Pavement Base and Subbase Courses
… thick granular layers, a comprehensive set of repeated load triaxial tests, considering both constant and variable confining pressure (CCP and VCP) conditions, were conducted on the NAPTF P209 base and NAPTF P154 subbase granular materials. Based on the laboratory test results, both CCP and VCP …
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Development of a Mechanistic-Based Approach to Evaluate Critical Conditions of Hot Mix Asphalt Mixtures
… and the imposed environmental and traffic loading conditions. In particular, hot mix asphalt (HMA) mixtures are believed to have a critical combination of temperature and traffic loading rate which will result in excessive permanent deformation. Designing the appropriate mixture type and …
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Permanent deformation behavior of unbound granular materials and rutting model development
… take into account the effects of applied load, applied stress in relation to material’s strength and number of load cycles through a well-established laboratory test matrix for mechanical properties. Sixteen (16) different unbound granular materials commonly used in the state of North …
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Targeting aggregate marginality from a chemical and materials perspective to improve pavement performance
… strong compaction, continuous in-service traffic loading, and direct interaction with the surrounding environment, the process of weathering can be significant in unbound aggregates. This topic is of even higher relevance for New Zealand, where there is a high demand for unbound aggregates and its …