Results 141 to 150 of about 2,121 (180)

Quality Assurance of Hot-Mix Asphalt

Transportation Research Record: Journal of the Transportation Research Board, 2006
Quality assurance is the process by which highway construction elements are sampled and tested to ensure compliance with specifications and other project requirements. The results of contractor-performed tests, originally performed for quality control purposes, are increasingly used in the acceptance decision in many states.
Rod E. Turochy, J. Richard Willis, Frazier Parker   +2 more
openaire   +1 more source

Changes of asphalt fumes in hot-mix asphalt pavement recycling

Journal of Cleaner Production, 2020
Abstract 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, Yuhong Wang, Feng Xiong, Chunjin Ai, Dawei Wang, Giin Yu Amy Tan   +5 more
openaire   +1 more source

Long term performance of warm mix asphalt versus hot mix asphalt

Journal of Central South University, 2013
The fatigue behavior, indirect tensile strength (ITS) and resilient modulus test results for warm mix asphalt (WMA) as well as hot mix asphalt (HMA) at different ageing levels were evaluated. Laboratory-prepared samples were aged artificially in the oven to simulate short-term and long term ageing in accordance with AASHTO R30 and then compared with ...
Ziari Hasan, Behbahani Hamid, Izadi Amir, Nasr Danial   +3 more
openaire   +1 more source

Utilization of an Asphalt Pavement Analyzer for Hot Mix Asphalt Laboratory Mix Design

Journal of ASTM International, 2005
Abstract The Superpave volumetric mix design system, developed by SHRP in the 1990s, has continued to gain widespread acceptance across the United States. Although it is widely believed to be an improvement over past mix design systems, it does have an inherent flaw.
RC Williams, DW Hill, MP Rottermond
openaire   +1 more source

Airborne Emissions Assessment of Hot Asphalt Mixing Methods and Limitations

Road Materials and Pavement Design, 2010
Hot 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, Gaudefroy, Vincent, Ventura, Anne, de La Roche, Chantal, Paranhos, Régis, Moneron, Pierre   +5 more
openaire   +1 more source

The spatial approach of hot mix asphalt

Sixth International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials, 2003
Asphalt structures have to comply with requirements from different parties involved and for changing conditions. This compliance is realised by properties and composition of the basic materials. Several methods have been developed for defining these properties and optimising composition. Broad classes that can be distinguished are: empirical models for
openaire   +1 more source

New Approach to Recycling Asphalt Shingles in Hot-Mix Asphalt

Journal of Materials in Civil Engineering, 2012
AbstractThe objective of this study is to introduce a new approach to recycling asphalt shingles in asphalt paving construction in which recycled asphalt shingles (RAS) are ground to ultrafine particle sizes and blended with asphalt binder through a wet process.
Mostafa A. Elseifi, Saman Salari, Louay N. Mohammad, Marwa Hassan, William H. Daly, Samer Dessouky   +5 more
openaire   +1 more source

Cracking Performance of Lower Asphalt Binder Coarse Hot Mix Asphalt Mixes

2016
Historically, asphalt mixtures in Minnesota have been produced to be fine-graded in nature. Recently, there are increasingly more coarse-graded mixtures being produced with relatively low asphalt binder content as compared to fine-graded mixtures. The performance of the coarser low asphalt content mixes is not known; therefore, the objective of this ...
Eshan V. Dave, Chelsea Hoplin, Benjamin Helmer   +2 more
openaire   +1 more source

Performance of Hot-Mix Asphalt Containing Recycled Asphalt Pavement

Transportation Research Record: Journal of the Transportation Research Board, 2011
The 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%.
Tran, Binh T., Hassan, Rayya A.
openaire   +2 more sources

Oxidative Aging of Asphalt Binders in Hot-Mix Asphalt Mixtures

Transportation Research Record: Journal of the Transportation Research Board, 2011
This study evaluated the effect of different aggregate sources along with their Corresponding change in mixture characteristics to determine the influence of both on binder oxidation rates and changes in mixture stiffness when compacted mixtures were exposed to laboratory aging conditions.
Nathan Morian, Elie Y. Hajj, Charles J. Glover, Peter E. Sebaaly   +3 more
openaire   +1 more source