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 20 for “"shingles"”.
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Impact of recycled asphalt shingles on asphalt concrete characteristics
… (RAP) and more recently recycled asphalt shingles (RAS) have become widely accepted in the United States as a replacement for virgin asphalt binder or virgin aggregates. However, the economics and the challenges of using them were not viable until recently. The use of RAP and RAS thus …
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Environmental analysis of using recycled asphalt shingles in pavement applications.
Recycled asphalt shingles have been used in paving applications for more than two decades and have growing acceptance in the industry. The cost of asphalt binder has steadily increased, fueling pressure to find suitable recycled materials to supplement virgin materials. The Minnesota Department of …
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Influence of Recycled Asphalt Shingles on Asphalt Binder Content, Mixture Stiffness, and Laboratory Rutting Performance
<p>Recycled asphalt shingles (RAS) is a technology in which pavement costs can be reduced significantly and pavement properties may be enhanced. Also, incorporating shingles into pavements reduces the impacts of waste shingles in landfills, preserving our environment. However, for this new …
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Quantitative evaluation of low-temperature performance of sustainable asphalt mixtures and binders containing recycled asphalt shingles (RAS) and rejuvenators
The utilization of recycled asphalt shingles (RAS) in HMA pavement applications was investigated via Disk-shaped Compact Tension (DC(T)) mixture testing and an acoustic emission (AE) based technique for estimating the embrittlement temperature of RAS-modified mixtures and asphalt binders prepared …
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Investigating and Understanding the Effects of Reclaimed Asphalt Pavement and Shingles on the Rheology and Performance Grading of Asphalt Cement.
… of Recycled Asphalt Pavements (RAP) and Shingles (RAS) into neat asphalt binder is a useful development towards environmental sustainability apart from its economic savings benefits, which comes as a relief to the finances of the transportation sector. Recycling of pavements reduces the …
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Economic evaluations of vaccines in Canada: Exploring the epidemiologic and economic impact of chickenpox vaccine strategies in Canada using an agent-based model
… to aid in the understanding of chickenpox and shingles disease dynamics, to measure the cost-effectiveness of chickenpox vaccination and to help guide health policy decision-making. Chickenpox is a childhood disease caused by varicella-zoster virus (VZV), which can reactivate as shingles in …
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Development of protein microarrays for the investigation of host-pathogen interactions
… is a human herpesvirus (causing chickenpox and shingles upon reactivation) whose diagnosis is particularly important in pregnancy and immunocompromised patients. Current sérodiagnostic assays are either based on crude whole cell lysates or glycoprotein preparations lacking high specificity and …
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Anti(-)bodies for Physical Education: An embodied studying with 'ignorant schoolmasters'
… entry relating to the researcher’s bout with shingles were collected and analysed postqualitatively and reflexively in two stages. An emergent method called ‘embodied studying’, which combines Sheets-Johnstone’s (2011) perspective on kinaesthesia and Tyson Lewis’s (2013) notion of studying, …
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Investigation of cracking resistance of recycled Superpave mixtures
… asphalt pavement (RAP) and recycled asphalt shingles (RAS) are typically used in hot-mix asphalt, increasing the amount of RAP and RAS materials increases the potential for premature pavement distresses, especially cracking. This research evaluated four recycled Superpave mixtures with …
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Materia medica and care : a study of the uses of medicinal herbs and remedies as a form of treatment and negotiating social relationships in Cape Town and surroundings
… infections such as tuberculosis, thrush and shingles in the Western Cape. The study stems from twelve months fieldwork in Strand, Western Cape and the collection of plants from Mpoza, Eastern Cape for a variety of reasons. The study ethnographically documents when, under which circumstances …
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Cracking potential of short- and long-term aged binder with various levels of ABR
… asphalt pavement (RAP) and recycled asphalt shingles (RAS) could improve the sustainability of asphalt concrete (AC), in terms of cost savings and environmental factors. This should be only valid when short- and long-term pavement performance are not compromised. This thesis presents an …
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Investigating Climate Impacts of Urbanization and the Potential for Cool Roofs to Mitigate the Kansas City Metropolitan Area’s Urban Heat Island Effect
… to conventional materials (e.g. dark asphalt shingles). In this study, we utilize the Weather Research and Forecasting (WRF) model to investigate the UHI under different scenarios during the same heat wave event (i.e. July 2012) in the Kansas City metropolitan area (KCMA). First a suite of …
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Performance analysis of asphalt mixtures modified with ground tire rubber and recycled materials
… and an increased amount of recycled asphalt shingles (RAS) on mix performance. The products were incorporated into Illinois Tollway’s approved Stone Matrix Asphalt (SMA) Surface Friction Warm Mix Asphalt designs using a base binder (PG 58-28), a softer binder (PG 46-34), and softer binder …
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Determining the Mobility of Metals Through Coal Combustion Byproducts in Surface Impoundments by Analyzing Leachate From Modified Saturated Hydraulic Conductivity Tests
… aggregate, Portland cement substitute, asphalt shingles, etc. would require separating the CCBs into their components (fly ash, bottom ash, boiler slag, and flue gas desulfurization (FGD) material). It is recommended that an economic feasibility study be conducted on the ash pond(s) at GPC's …
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Evaluation of viscous effects in crack tip fields in recycled asphalt pavement materials using digital image correlation
… and the loading rate and RAS (Recycled Asphalt Shingles) content affected viscous response. The second part of this work focused on comparing different mixes regarding energy dissipation, strain recovery, crack propagation and fracture process zone (FPZ). Energy dissipation was studied on two …
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An analysis of impact factors on the Illinois flexibility index test
… asphalt pavement (RAP) and recycled asphalt shingles (RAS) have been incorporated into the material design of typical pavements. The use of these materials is both economically and environmentally friendly, at least initially. However, asphalt concrete materials with high recycled content …
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Asphalt mixture evaluation using performance space diagrams, digital image correlation, and discrete element modeling
… such as recycled asphalt pavement (RAP) and shingles (RAS), have limited long term field performance data. As a result, traditional and enhanced laboratory performance tests are necessary to determine their potential use in asphalt concrete applications. The characterization of asphalt …
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Worker's Behavioral Adaptation to Safety Interventions and Technologies: Empirical Evidence and Theoretical Considerations Through The Case of Simulated Residential Roofing Task
… subjects' behavioral changes while installing shingles on a 27-degree sloped roof under three levels of safety interventions (i.e., with no fall-safety intervention, with an injury-reducing fall-safety intervention—i.e., fall-arrest system—and with an injury-preventing fall-safety intervention— …
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Effect of specimen geometry and test configuration on the fracture process zone for asphalt materials
… asphalt pavement (RAP) and recycled asphalt shingles (RAS) have resulted in asphalt mixtures prone to early cracking. In addition, Superpave volumetric design requirements are no longer sufficient to design asphalt mixtures because of the inconsistent properties of RAP or RAS. Consequently, …
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If You Don’t Want to Talk About Food, Don’t Sit Next to Me
<p><em>If You Don’t Want to Talk About Food, Don’t Sit Next to Me</em> has as its main characters the same qualities taken from the new philosophy of <em>Le Cordon Bleu: “Aspire, Discover, Flourish, Delight, and Thrive,</em><em>”</em> and the memories made while a full-time student. </p>