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 80 for “"Asphalt Binder"”.
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Estimation of asphalt binder viscosity using ultrasonic guided waves
The viscosity of asphalt binder is of significant interest to those in the pavement industry. When a particular binder is selected for use in a pavement design, it must be rigid enough to support traffic loads and maintain its shape throughout its service life. However, it must not be so rigid that …
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Evaluation of performance graded asphalt binder equipment and testing protocol
The testing and grading of asphalt cement has progressively changed to meet the demanding needs for quality hot mix asphalt pavements. From October 1987 through March 1993, the Strategic Highway Research Program (SHRP) conducted a {dollar}50 million research effort to improve asphalt pavement …
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Performance of hot mix asphalt using peat modified asphalt binder
… among others, are introduced to be mixed with asphalt. This study was conducted to investigate the use of parit Nipah peat (PNpt) to be mixed with asphalt, both of unaged and aged conditions to improve the performance of asphalt mix. The physical properties, storage stability and rheological …
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The effect of mica on the aging of asphalt binder
Asphalt Concrete (AC) consists of approximately 95% aggregate, by weight. Of this 95%, about 6% is smaller than 0.075 mm in size (passing the #200 sieve and called fines). The fines often contain mica. Mica is a formation of silicate minerals having perfect basal cleavage. It can be peeled apart in …
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Computational Analysis of Asphalt Binder based on Phase Field Method
The mechanical performance evaluation of asphalt binder has always been a challenging issue for pavement engineers. Recently, the Phase Field Method (PFM) has emerged as a powerful computational tool to simulate the microstructure evolution of asphalt binder. PFM analyzes the structure from the …
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A new asphalt binder parameter to predict asphalt concrete fatigue behavior
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-12-01
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Asphalt binder and mixture performance using Batu Pahat soft clay as modifier
… the use of BPSC particles as additive in Hot Mix Asphalt (HMA) mixture which was previously introduced in powder form. The experimental work for this survey included the use of four BPSC ratios (2, 4, 6 and 8%) according to the weight of bitumen. A design for the hot mix asphalt was executed by …
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Optimizing asphalt binder chemistry and rheology to control potential flexible pavement cracking
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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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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A micro-scale method to associate the fatigue properties of asphalt binder, mastic and mixture
… of the most common distresses observed on the asphalt concrete pavement. The initiation and propagation of the fatigue damage is a complicated phenomenon and very difficult to detect. In order to thoroughly understand the fatigue of asphalt concrete, the behaviors of the key components of …
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Use of phase angle in lieu of critical crack tip opening displacement for asphalt binder specification
… a significant problem with the construction of asphalts demonstrating less than optimal long-term performance. Therefore, attention should be paid to the asphalt binder acceptance criteria used. This study considers how phase angle specification limits can be used in lieu of Critical Crack Tip …
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Investigation of factors affecting use of the poker chip test for asphalt binder and mixture performance
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Development of a pavement life cycle assessment tool utilizing regional data and introducing an asphalt binder model
… of Illinois, the relevant region in this study. Asphalt binder is one of the major materials contributing to the environmental impact of asphalt pavements. Therefore, in order to improve the accuracy of the inventory, life cycle models for the production of asphalt binder are also developed for …
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A Laboratory Study on the Effect of High Rap and High Asphalt Binder Content on the Performance of Asphalt Concrete
This thesis investigates the effect of added asphalt binder content on the performance and volumetric properties of asphalt concrete mixes containing Reclaimed Asphalt Pavement (RAP). Mixes with three different percentages of RAP (0%, 20%, 40%) obtained from an asphalt producer and three different …
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The Effect of High RAP and High Asphalt Binder Content on the Dynamic Modulus and Fatigue Resistance of Asphalt Concrete
… effects of using various percentages of RAP and asphalt binder contents on the dynamic modulus and fatigue resistance of asphalt concrete. Two RAP percentages (20% and 40%) and three binder percentages (plant-mixed, plant-mixed + 0.5%, and plant-mixed + 1.0%) were evaluated. A Superpave gyratory …
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Impact of recycled asphalt shingles on asphalt concrete characteristics
The use of recycled materials in asphalt mixtures such as reclaimed asphalt pavements (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 …
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Performance Evaluation of Asphalt Mixtures with Tire Rubber Modified Binder
… for recycling scrap tires is to use them as an asphalt modifier for paving applications.The necessity of recognizing the performance of terminal blend tire rubber modified asphalt binder (TTR) hot mix asphalt (HMA) mixtures is imperative to keep improving the overall conditions of the roads …
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The effects of micro and nano size bauxite particles in modified asphalt binders and asphaltic mixtures
… to focus how to improve the characteristics of asphalt mix in order to reduce the pavement deteriorations. This study aims to evaluate the effects of Malaysian Micro bauxite powders (MBP) and Nano bauxite powders (NBP) with 3%, 5% and 7% by mass of bitumen. Conventional bitumen 80/100 …
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