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RISPrediction of Hot Mix Asphalt Stability Using the Superpave Gyratory Compactor
Publisher: American Society of Civil Engineers
Abstract: A method is developed to assess hot mix asphalt (HMA) stability during compaction in the mix design process, and prior to conducting further expensive and time consuming testing. The method consists of a mathematical ...
Development of an Elastoviscoplastic Microstructural-Based Continuum Model to Predict Permanent Deformation in Hot Mix Asphalt
Publisher: American Society of Civil Engineers
Abstract: Permanent deformation in hot mix asphalt is caused by a combination of densification (decrease in volume and hence increase in density) and shear deformation. The primary objective of this paper is to develop an ...
Numerical Study on Design and Installation of Energy-Harvesting Modules Embedded within a Flexible Pavement Structure
Publisher: ASCE
Abstract: Previous analytical and experimental works have shown that the power output of a piezoelectric-based energy-harvesting module is nonlinearly proportional to compressive stresses. This study aims to identify an optimal set ...
Study of the Performance of Warm-Mix Asphalt Containing Recycled Concrete as a Coarse Aggregate in Egypt and the Middle East
Publisher: American Society of Civil Engineers
Abstract: This paper aims to evaluate the possibility of using recycled concrete aggregate (RCA) as an alternative to coarse natural aggregates (NAs) in warm-mix asphalt (WMA). The index engineering characteristics of the RCA used ...
Laboratory Evaluation of the Workability and Compactability of Asphaltic Materials prior to Road Construction
Publisher: American Society of Civil Engineers
Abstract: Asphalt mix compaction is dependent on many factors, particularly gradation, asphalt grade and content, aggregate size, temperature, and compactor manufacturer. The new development in polymer-modified asphalt has a major ...
Linear Viscoelastic Modeling for Hot-Poured Crack Sealants at Low Temperature
Publisher: American Society of Civil Engineers
Abstract: To understand the behavior of hot-poured bituminous-based crack sealants at low service temperatures and to predict their field performance, a constitutive stress-strain relationship must be described. This would allow ...
Finite-Element Analysis of Hot Mix Asphalt Microstructure Using Effective Local Material Properties and Strain Gradient Elasticity
Publisher: American Society of Civil Engineers
Abstract: This paper presents the development of a methodology for microstructure analysis and modeling of hot mix asphalt (HMA). This methodology relies on using effective local material properties and strain gradient theory in the ...
Correlating the Asphalt-Binder BBR Test Data to the HMA (ML-OT) Fracture Properties
Publisher: ASCE
Abstract: An asphalt-binder is one of the key constituent elements that significantly influences and controls the fracture behavior and cracking performance of hot-mix asphalt (HMA). In particular, the low-temperature rheological ...
Intelligent Prediction of Asphalt Concrete Air Voids during Service Life Using Cubist and GBRT-Ensemble Learning Approaches Hybridized with an Equilibrium Optimizer Algorithm
Publisher: ASCE
Abstract: There are four critical factors that affect air voids (VA) of asphalt concrete over time: traffic loads and repetitions, environmental regimes, compaction, and asphalt mix composition. Because of the high as-construct VA ...
New Approach to Recycling Asphalt Shingles in Hot-Mix Asphalt
Publisher: American Society of Civil Engineers
Abstract: The 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 ...