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Temperature Field of Mass Concrete in a Pipe Lattice
Publisher: American Society of Civil Engineers
Abstract: Removing heat from mass concrete at initial construction is important for assuring the quality of the concrete after curing. It serves two main purposes, preventing the excessive stress development within the concrete when ...
Van Der Waals Force and Asphalt Concrete Strength and Cracking
Publisher: American Society of Civil Engineers
Abstract: Van der Waals force between neutral molecules is employed to characterize the interaction among molecules in asphalt cement. Several important consequences emerge from the consideration. The brittle strength of the asphalt ...
Road Profiles, Vehicle Dynamics, and Human Judgment of Serviceability of Roads: Spectral Frequency Domain Analysis
Publisher: American Society of Civil Engineers
Abstract: The serviceability rating of roads has been an interesting and important subject ever since it was introduced to measure the road performance. The present paper analytically addresses this problem—namely, linking a static ...
Temperature Distribution in Layered Road Structures
Publisher: American Society of Civil Engineers
Abstract: An analytic framework dealing with heat movement in a three-layer pavement structure is set up based on the Fourier-Biot heat conduction equation. Exact analytic solution is obtained. The thermal characteristic frequencies ...
Surface Roughness Effect on Dynamic Response of Pavements
Publisher: American Society of Civil Engineers
Abstract: By modeling a pavement structure as a beam rested on a viscoelastic foundation, we have constructed a physical picture linking together vehicle dynamics, road profile characteristics, and pavement response in a theoretical ...
Road Profile, Vehicle Dynamics, and Ride Quality Rating
Publisher: American Society of Civil Engineers
Abstract: A great deal of research has been carried out over the past few decades in seeking explanatory variables to understand various human judgmental indices of road quality. The essential question is, What is a rater sensing ...
New Approach to Roadway Performance Indices
Publisher: American Society of Civil Engineers
Abstract: In 1964, Carey and Irick defined the present serviceability index (PSI) by assuming that the PSI can be expressed on a scale of 0 to 5 as the sum of a logarithmic function of slope variance, a quadratic function of mean ...
China: Innovative Use of Materials for Highway Construction
Publisher: American Society of Civil Engineers
Heat Conduction Waves in Bilayer Cement Concrete Structures
Publisher: American Society of Civil Engineers
Abstract: The temperature propagation in a layered structure is of great importance in determining the thermal induced strain in the structure, and in particular the thermal induced stress along the interfaces of the structure due ...
Development of a Computer System for Simulation of Traffic Models
Publisher: American Society of Civil Engineers
Abstract: In this paper, a computer system named Advanced Emulator (AE), which is developed for simulation of traffic models, is presented. Unlike traditional transportation programs such as PARAMICS and VISSIM, AE has no built-in ...