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RISEffects of Layer Interfacial Bonding Conditions on the Mechanistic Responses in Asphalt Pavements
Publisher: American Society of Civil Engineers
Abstract: The bonding condition between pavement layers plays an important role in the performance of pavement structures. In this paper, a three dimensional finite-element (3D-FE) program was used for modeling the mechanistic ...
Alternative Structure and Material Designs for Cost-Effective Perpetual Pavements in Texas
Publisher: ASCE
Abstract: Since the perpetual pavement (PP) concept was introduced, many countries and states, including Texas, have constructed PP roadways. To date, 10 PP sections in Texas have been in service since 2003. With the oldest section ...
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 ...
Proposed Loading Waveforms and Loading Time Equations for Mechanistic-Empirical Pavement Design and Analysis
Publisher: American Society of Civil Engineers
Abstract: Under the same applied traffic loading, time is traditionally assumed to be a function of only the vehicle speed and the depth beneath the pavement surface. Additionally, no definite loading waveform has been established ...
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 ...
Development of Multiple-Choice Default Load Spectra Inputs Based on Road Types for the Texas Mechanistic-Empirical Flexible Pavement Design System
Publisher: ASCE
Abstract: Traffic loading is one of the key factors considered in pavement design. It is anticipated that the use of axle load spectra provides more accurate traffic-loading inputs than the traditional equivalent single-axle load ...
Correlating the Asphalt-Binder MSCR Test Results to the HMA HWTT and Field Rutting Performance
Publisher: ASCE
Abstract: Asphalt binder is one of the key constitutive components of hot-mix asphalt (HMA) that considerably affects its rutting performance. In particular, the high-temperature rheological properties measured from the multiple ...
Moisture-Induced Deterioration Mechanism of Asphalt Mortar Using Different Fillers
Publisher: American Society of Civil Engineers
Abstract: The effect of different filler types on the properties of asphalt mortar before and after water saturation was studied by laboratory tests. Under both dry and water-saturated circumstances, four alternative fillers, limestone ...
Characterization of Rutting (Permanent Strain) Development of A-2-4 and A-4 Subgrade Soils under the HVS Loading
Publisher: American Society of Civil Engineers
Abstract: As part of a national pool funded study 208 on pavement subgrade performance, 12 full-scale test sections (four soil types and three moisture contents) were constructed and tested under the heavy vehicle simulator (HVS) ...
Development, Calibration, and Verification of a New Mechanistic-Empirical Reflective Cracking Model for HMA Overlay Thickness Design and Analysis
Publisher: American Society of Civil Engineers
Abstract: The purpose of this paper is to present a new mechanistic-empirical (ME) reflective cracking model developed for hot-mix asphalt (HMA) overlay thickness design and analysis. After reviewing existing models, the reflective ...