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 15 of 15 for “"Accelerated Pavement Testing"”.
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Evaluation of Balanced Asphalt Surface Mixtures with Conventional and High RAP Contents Using Laboratory and Accelerated Pavement Testing
… volumetric parameters with performance-based 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 …
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Mechanistic-Empirical Modeling of Permanent Deformation in Asphalt Concrete Layers
… respect to traffic, climate and materials using accelerated pavement testing and long-term pavement performance studies. The mechanistic-empirical pavement design guide (M E PDG), the incremental-recursive mechanistic-empirical CalME model (CalME), and the PErmanent Deformation of asphalt …
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Performance evaluation of unconventional aggregates from primary and recycled sources for construction platform and low volume road applications
… of recycled materials, e.g. reclaimed asphalt pavement (RAP) and recycled concrete aggregate (RCA) with possible large particle sizes, are not readily available in current engineering literature. The main objective of this research study was to evaluate engineering applications and field …
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Performance Analysis and Modeling of Pavements with a Cold Central Plant Recycled Base under Accelerated Loading Testing
… to save material, money, time, and energy in pavement construction and rehabilitation. The objectives of this thesis were to: (1) perform an instrumented verification analysis, (2) evaluate the response and performance of two pavement configurations with a CCPR base layer through accelerated …
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Methodology to Validate Traffic Speed Deflection Devices (TSDDs) Measurements Using Laser Doppler Vibrometers (LDV) Sensors
Pavement structural evaluation is important for effective pavement management and design. Traffic Speed Deflection Devices (TSDDs) provide an efficient way to collect pavement structural condition data at the network-level. However, the integration of TSDD measurements into pavement management and …
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Evaluating Pavement Response and Performance with Different Simulative Tests
Simulative tests refer to the Full-scale accelerated pavement testing (APT) and laboratory wheel tracking testing, which are widely used for evaluation of pavement responses and performance under a controlled and accelerated damage conditions in a compressed limited time. This dissertation focuses …
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Evaluation of field performance of fine-graded hot mix asphalt on Illinois' roadways
… tested in order to compare CG HMA and FG HMA. Accelerated pavement testing also took place in order to compare both FG HMA and CG HMA. In all performance tests, FG HMA performed either equal or better than CG HMA. Among the concerns that transportation agencies have stated about CG HMA are its …
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Performance-based evaluation of unbound aggregates affecting mechanistic response and performance of flexible pavements
… construction to replace unsuitable soil, prepare pavement working platform or construct pavement foundation layers. Their primary function in flexible pavements is to distribute wheel loads and provide adequate protection of the subgrade. However, the empirical strength based quality evaluations …
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Optimizing the Use of Reclaimed Asphalt Pavement (RAP) in Hot Mix Asphalt Surface Mixes
The most common use of reclaimed asphalt pavement (RAP) is in the lower layers of a pavement structure, where it has been proven as a valid substitute for virgin materials. Instead, the use of RAP in surface mixes is more limited, with a major concern being that the high RAP mixes may not perform …
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Enhancing Network-Level Pavement Macrotexture Assessment
Pavement macrotexture has been shown to influence a range of safety and comfort issues including wet weather friction, splash and spray, ambient and in-vehicle noise, tire wear, and rolling resistance. While devices and general guidance exist to measure macrotexture, the wide-scale collection and …
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Biocementation of Road Foundations: Element Testing, Physical Modelling, and Micro-Scale Characterisation
… uncemented and biocemented aggregates. Finally, accelerated pavement testing (APT) was carried out using the Cambridge APT facility to assess the practicality of applying biocementation to improve road foundations. Two three-layer foundation models, one uncemented and one biocemented, were …
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Performance of Silty Sands and their Use in Flexible Airfield Pavement Design
Traditionally, flexible pavement design relies on past experience and semi-empirical methods developed through a combination of element testing and modelling. Element testing in this area especially, has centred on the performance of clean sands. This is in conflict with actual practice where a …
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Sustainable pavement applications utilizing quarry by-products and recycled/nontraditional aggregate materials
… virgin or recycled aggregate materials in pavements. The selected QB applications were evaluated through the construction of full-scale pavement test sections utilizing QB in targeted sustainable applications, and testing them with heavy wheel loads through Accelerated Pavement Testing …
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Analyses and prediction of granular layer rutting trends in airport pavements due to heavy aircraft wheel loading and wander patterns
… in unbound layers of airfield flexible pavement. As such, the challenge is to investigate and propose proper rut prediction models that can capture such influences from full-scale accelerated pavement test studies. This was achieved by studying pavement test sections constructed and full …
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Aggregate characteristics affecting response and performance of unsurfaced pavements on weak subgrades
"Design of low volume roads and unsurfaced pavements traditionally involves covering the prepared subgrade with an unbound aggregate layer of sufficient thickness such that traffic-induced wheel loads are adequately distributed and stresses on the subgrade can be tolerated. Aggregate gradation and …