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RISLinear and Nonlinear Rheological Properties of Bituminous Mastics under Large Amplitude Oscillatory Shear Testing
Publisher: American Society of Civil Engineers
Abstract: This paper studies the linear viscoelastic behavior under small strain amplitudes and the nonlinear behavior using large amplitude oscillatory shear (LAOS) tests performed at strains beyond the linear viscoelastic regime ...
Developing Global Warming Potential Criteria for Balanced Asphalt Mixes with Emerald Eco-Label EPDs
Publisher: American Society of Civil Engineers
Abstract: AbstractThis study integrates balanced mix design (BMD) thresholds with Environmental Product
Declarations (EPDs) for asphalt mixtures at three nominal maximum aggregate sizes
(NMAS): 9.5, 12.5, and 19 mm. The primary ...
Performance Evaluation of High-Content Rubber Asphalt Mixtures Using Superpave and Balanced Mix Design via Dry and Semi-Wet Processes
Publisher: American Society of Civil Engineers
Abstract: AbstractGrowing environmental concerns and the rising costs of raw materials have driven increased
interest in using high crumb rubber content in asphalt pavements. This study investigates
mixtures containing 20% and 24% ...
Aggregate Morphological Characterization with 3D Optical Scanner versus X-Ray Computed Tomography
Publisher: American Society of Civil Engineers
Abstract: In quantifying the morphological features of aggregate, X-ray computed tomography (CT) is one of the most popularly used approaches for capturing aggregate images that is considered accurate and reliable. In this study, ...
Refining the Calculation Method for Fatigue Failure Criterion of Asphalt Binder from Linear Amplitude Sweep Test
Publisher: American Society of Civil Engineers
Abstract: The objective of this paper is to refine the calculation method for improving the regression accuracy of fatigue failure criterion of asphalt binder using the linear amplitude sweep (LAS) test, especially for the highly ...
Untitled
Publisher: American Society of Civil Engineers
Abstract: The morphology of aggregates has a significant effect on the mechanical performance of aggregate-based materials such as asphalt concrete and cement concrete. This paper obtains shape indexes of aggregates, including ...
Laboratory Testing of Rheological Behavior of Water-Foamed Bitumen
Publisher: American Society of Civil Engineers
Abstract: From the rheological behavior of bitumen, one can understand the physical properties of water-foamed bitumen used in warm mix asphalt. Previously, rheological behaviors of water-foamed bitumen such as apparent viscosity, ...
Thermal Storage Stability of Bio-Oil Modified Asphalt
Publisher: American Society of Civil Engineers
Abstract: This study investigates and evaluates the storage stability of asphalt binder modified by bio-oil at high temperature. Five bio-asphalts are prepared by adding 1, 15, 2, 25, and 3% bio-oil into 7# petroleum asphalt. The ...
Characteristics of Water-Foamed Asphalt Mixture under Multiple Freeze-Thaw Cycles: Laboratory Evaluation
Publisher: American Society of Civil Engineers
Abstract: A major concern with the application of water-foamed asphalt mixtures is the possible performance degradation caused by the presence of inclusion water during production. Inclusion water left in the asphalt mixture after ...
Aggregate Morphology and Internal Structure for Asphalt Concrete: Prestep of Computer-Generated Microstructural Models
Publisher: American Society of Civil Engineers
Abstract: The reconstruction of microstructural models is the prerequisite step for the micromechanical simulation of asphalt concrete. Computer-generated microstructural models have been developed because the traditional X-ray ...