Results 141 to 150 of about 1,967 (159)
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Laboratory Hot-Mix Asphalt Cracking Testing
Transportation Research Record: Journal of the Transportation Research Board, 2013Cracking is one of the predominant distresses occurring in hot-mix asphalt (HMA) pavements and often costs highway agencies millions of dollars in road maintenance and rehabilitation activities. One way to minimize this distress is through material screening and selection of appropriate mix designs that are representative of crack-resistant HMA ...
Lubinda F. Walubita +5 more
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Evaluation of Recycled Asphalt Shingles in Hot Mix Asphalt
Transportation and Development Institute Congress 2011, 2011The objective of this study was to evaluate the performance of asphalt mixtures containing different dosages of recycled asphalt shingles (RAS) using the dynamic modulus (|E*|) test with a universal testing machine and rutting test with the asphalt pavement analyzer (APA). In this study, 5% and 10% RAS were used in the Superpave mixtures.
Shu Wei Goh, Zhanping You
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Low-Energy Asphalt with Performance of Hot-Mix Asphalt
Transportation Research Record: Journal of the Transportation Research Board, 2006The paper presents an original process to produce a warm asphalt mixture: low-energy asphalt (LEA) with the performance of hot-mixasphalt(HMA). The Kyoto agreements continue to divide the planet, while protocol signatories are defining their application conditions.
Alain Romier +4 more
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Performance of Hot-Mix Asphalt Containing Recycled Asphalt Pavement
Transportation Research Record: Journal of the Transportation Research Board, 2011The purpose of this paper is to report the initial findings of an experimental program to design and assess the properties of recycled hot dense graded asphalt mixes. The mixes include Size 14-mm wearing course mix with and without recycled asphalt pavement (RAP). The RAP contents in the recycled mixes were 10%, 20%, and 30%. Laboratory designs of the
Tran, Binh T., Hassan, Rayya A.
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Effects of Reclaimed Asphalt Pavement on Hot-mix Asphalt
Advances in Civil Engineering Materials, 2014Abstract This study examined the effects of reclaimed asphalt pavement (RAP) on the structural properties and performance of hot-mix asphalt (HMA) and the rheological properties of asphalt binder in the laboratory. As a first step, dynamic modulus (|E*|) and indirect tensile strength (ITS) tests were conducted on a set of HMA samples ...
Md Rashadul Islam +3 more
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Changes of asphalt fumes in hot-mix asphalt pavement recycling
Journal of Cleaner Production, 2020Abstract Hot-mix asphalt pavement recycling is widely practiced for its economic and environmental benefits. Existing studies are mainly focused on the engineering properties of reclaimed asphalt pavement (RAP) materials, without considering their impacts on the generated asphalt fumes—a widely recognized environmental hazard.
Shicong Mo +5 more
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Leaching of PAHs from Hot Mix Asphalt Pavements
Environmental Engineering Science, 2007Asphalt has been widely used as the primary bound road construction material, both as road base material and wearing course. Polycyclic aromatic hydrocarbons (PAHs) have commonly been observed in soils near and under roads. However, the contribution from PAH leaching from asphalt to the actual contamination of the soil adjoined to the road has been ...
Birgisdottir, Harpa; id_orcid 0000-0001-7642-4107 +2 more
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Airborne Emissions Assessment of Hot Asphalt Mixing Methods and Limitations
Road Materials and Pavement Design, 2010Hot mix asphalt industries are required to meet airborne emissions thresholds, yet only a few types of emission measurements are available. This study is therefore aimed at evaluating the influence of operating parameters on airborne emissions at the plant stack, especially Gaseous Organic Compounds (GOC), in addition to identifying both the best ...
Jullien, Agnès +5 more
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Performance of Asphalt Rejuvenators in Hot-Mix Asphalt Containing Recycled Asphalt Shingles
Transportation Research Record: Journal of the Transportation Research Board, 2017The use of recycled asphalt shingles (RAS) in asphalt paving construction represents a sustainable approach to reduce virgin material consumption and negative environmental effects, as well as the cost of asphalt pavement. However, many challenges are yet to be addressed about the use of RAS in paving applications.
Max A. Aguirre +4 more
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Quality Management of Hot Mix Asphalt
1996Description Provides real-world examples of how quality management systems can and do operate. 10 peer-viewed papers include • Performance Based Field Quality Control/Quality Assurance for Asphalt-Aggregate Mixtures • Evaluation and Modification of a Statistical Specification for Hot Mix
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