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Alternative Function to Represent Relaxation Modulus of Viscoelastic Materials
Publisher: American Society of Civil Engineers
Abstract: The generalized Maxwell model has been widely adopted for the prediction of relaxation modulus of viscoelastic materials, specifically asphalt materials. For practical reasons, relaxation modulus is rarely measured; instead ...
Axial Dispersion Coefficients in Laminar Flows of Water-Distribution Systems
Publisher: American Society of Civil Engineers
Abstract: Because longitudinal dispersion is becoming increasingly germane to the problem of accurately determining water quality, water-resource managers and engineers seeking to represent solute transport in drinking-water systems ...
Relating Laboratory and Natural Aging of Asphalt Mixtures Based on Low-Temperature Performance
Publisher: ASCE
Abstract: Thermal cracking of asphalt pavements is primary distress in cold regions. The Bending Beam Rheometer (BBR) can be used as a thermal cracking prediction tool for asphalt mixtures based on AASHTO TP 125. This study investigates ...
Characterization of Intermediate Temperature Fracture Properties of Asphalt Mixtures as Measured with Different Tests
Publisher: ASCE
Abstract: Different test methods have been used to predict the performance of asphalt pavement by addressing the cracking mechanism. Based on the preference shown by highway agencies, the two most prevalent tests are the Indirect ...
Experimental Verification of Incomplete Solute Mixing in a Pressurized Pipe Network with Multiple Cross Junctions
Publisher: American Society of Civil Engineers
Abstract: Water quality models based on accurate mixing data at cross junctions are important for estimating concentrations of chemical species in municipal water distribution systems. Recent studies indicate that the instantaneous ...
The Representative Sample Size for Field Application of the Bending Beam Rheometer as a Low-Temperature Performance Test of Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: The development of tests, standards, and specifications necessitates the establishment of technical validity while concurrently optimizing costs associated with the testing requirements. AASHTO TP 125-16 recommends the ...
Practicality of Driven Parameters of Semicircular Bending Test at Intermediate Temperature
Publisher: ASCE
Abstract: The semicircular bending (SCB) test characterizes crack resistance by determining the fracture toughness of asphalt mixtures. This test has been favored by many researchers due to the easy sample preparation and the ...