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Workability of Hot-Mix Asphalt
Transportation Research Record: Journal of the Transportation Research Board, 2004The term "workability" has been used to describe several properties related to the construction of hot-mix asphalt (HMA). For this study, workability was defined as a property describing the ease with which HMA can be placed, worked by hand, and compacted.
Jagan M. Gudimettla +2 more
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Long term performance of warm mix asphalt versus hot mix asphalt
Journal of Central South University, 2013The 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 +3 more
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Laboratory Investigation of Mixing Hot-Mix Asphalt with Reclaimed Asphalt Pavement
Transportation Research Record: Journal of the Transportation Research Board, 2005This paper presents a laboratory study in which the blending process of reclaimed asphalt pavement (RAP) with virgin mixture was analyzed through controlled experiments. One type of screened RAP was blended with virgin (new) coarse aggregate at different percentages.
Baoshan Huang +4 more
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Bimodular Analysis of Hot-Mix Asphalt
Road Materials and Pavement Design, 2010In this paper, the bimodular (different tensile and compressive moduli) stress distribution in the IDT specimen is determined for different compressive to tensile modulus ratios. The difference between the modulus calculated from the IDT test assuming Hondros' linear elastic stress distribution, and the compressive and tensile moduli is then obtained ...
Samer W. Katicha +2 more
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Microstructure Index of Hot Mix Asphalt
Road Materials and New Innovations in Pavement Engineering, 2011Digital image processing technique is used to quantify the impact of aggregate gradation and compaction method on air voids distribution and aggregate orientation and distribution. The air voids distribution was found to be sensitive to water permeability than traditional volume indexes.
Yue-jing Lv, Lei Zhang, Xing-lin Zhou
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2015
Hot mix asphalt recycling has become common practice all over the world since the 1970s because of the crisis in oil prices. In the Netherlands, hot recycling has advanced to such an extent that in most of the mixtures more than 50% of reclaimed asphalt (RA) is allowed. These mixtures with such a high RA content are produced in a batch plant to which a
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Hot mix asphalt recycling has become common practice all over the world since the 1970s because of the crisis in oil prices. In the Netherlands, hot recycling has advanced to such an extent that in most of the mixtures more than 50% of reclaimed asphalt (RA) is allowed. These mixtures with such a high RA content are produced in a batch plant to which a
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Laboratory Hot-Mix Asphalt Performance Testing
Transportation Research Record: Journal of the Transportation Research Board, 2014Reliable and repeatable laboratory testing of hot-mix asphalt (HMA) mixes is of paramount importance to ensure proper HMA mix-design characterization and ultimately to ensure satisfactory field performance. The study reported in this paper was undertaken to evaluate the comparability, repeatability, and reliability of two testing systems, namely, the ...
Lubinda F. Walubita +4 more
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Micromechanical Simulation of Hot Mix Asphalt
Journal of Engineering Mechanics, 1997A model based on the discrete element method (DEM), ASBAL, was developed by modifying the TRUBAL program to simulate hot mix asphalt (HMA). To represent asphalt cement, several viscoelastic elements (i.e., Maxwell, Kelvin-Voigt, and Burger's elements) were considered. The research results from the Strategic Highway Research Program (SHRP) were used for
Kuo-Neng G. Chang, Jay N. Meegoda
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Cracking Performance of Lower Asphalt Binder Coarse Hot Mix Asphalt Mixes
2016Historically, 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 +2 more
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Quality Assurance of Hot-Mix Asphalt
Transportation Research Record: Journal of the Transportation Research Board, 2006Quality 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 +2 more
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