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RISSensitivity of Oklahoma Binders on Dynamic Modulus of Asphalt Mixes and Distress Functions
Publisher: American Society of Civil Engineers
Abstract: For designing pavements many state agencies, including those in Oklahoma, use the 1993 AASHTO Guide for Design of Pavement Structures, which is empirical in nature. However, the Mechanistic-Empirical Pavement Design Guide ...
Effects of Aging and Rejuvenation on Surface-Free Energy Measurements and Adhesion of Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: This paper presents the results of a study that was conducted to understand the impacts of aging and rejuvenation on fundamental properties of asphalt binders. A Performance Grade (PG) 64-22 binder was aged to simulate the ...
Impact of Nanoclays on Chemical Fractions and Mechanical Performance of Asphalt Binders
Publisher: American Society of Civil Engineers
Abstract: Asphalt binder often is modified to obtain better performance of the pavement. Some recent studies have considered nanoclay as an alternative to currently practiced styrene-butadiene-styrene (SBS) modification to reduce ...
Ranking of the Commonly Used Aggregate and Asphalt Binder Systems in Arkansas
Publisher: American Society of Civil Engineers
Abstract: The Arkansas Department of Transportation (ARDOT) Maintenance Division is concerned about the use of certain aggregates in asphalt mixture because of their durability and performance issues. Good performance of the pavements ...
Investigation of Modified Asphalt Binders through Fourier Transformation Infrared Spectroscopic Analysis
Publisher: American Society of Civil Engineers
Abstract: Modification of asphalt binders causes changes in asphalt chemistry that can impact performance. The main goal of this study was to look for any appreciable alterations in asphalt chemistry brought on by aging and modification. ...
Morphological and Nanomechanical Characterization of Industrial and Agricultural Waste–Modified Asphalt Binders
Publisher: American Society of Civil Engineers
Abstract: For the past several decades, researchers around the world have used nanoindentation techniques to characterize different materials for biological, medical, and polymer science applications. In recent years, nanoindentation ...
Evaluation of Moisture Susceptibility of Nanoclay-Modified Asphalt Binders through the Surface Science Approach
Publisher: American Society of Civil Engineers
Abstract: Due to an increasing rate of traffic volume and truckloads in recent years, asphalt binders are often modified with synthetic polymers to increase stiffness and sustain excessive heat during hot summer days. However, the ...
Relationship between Rank of Laboratory Testing Results and Field Performance of Asphalt Interstate Pavement
Publisher: ASCE
Abstract: This study investigates the performance of multiple sections of the interstate system in Arkansas through the laboratory testing of 270 field cores taken from ten sections of I-30 and I-40. These roadway sections are defined ...
Relative Compatibility Analysis of Aggregate-Binder Systems in Arkansas against Stripping
Publisher: ASCE
Abstract: Compatibility holds great importance because it can predict the overall performance of asphalt mixtures. Incompatible aggregate-binder duos can result in a weak and friable mix as well as increase mixtures’ stripping ...
Evaluation for Warm-Mix Additive-Modified Asphalt Binders Using Spectroscopy Techniques
Publisher: American Society of Civil Engineers
Abstract: The recent increased interest in “fingerprinting” or identifying commonly used construction materials such as asphalt binders is expected to continue in years to come. To capture the basic fingerprint of asphalt binders, ...