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RISEvaluation of Aging Characteristics of High-Viscosity Asphalt: Rheological Properties, Rutting Resistance, Temperature Sensitivity, Homogeneity, and Chemical Composition
Publisher: ASCE
Abstract: The purpose of this paper was to study the aging behaviors of high-viscosity asphalt (HVA). Three kinds of asphalt binders [base asphalt, styrene-butadiene-styrene-modified asphalt (SBSMA), and HVA] were treated with rolling ...
Modeling Strength of High-Performance Concrete Using an Improved Grammatical Evolution Combined with Macrogenetic Algorithm
Publisher: American Society of Civil Engineers
Abstract: The main purpose of this paper is to propose an incorporating improved grammatical evolution (GE) into the genetic algorithm (GA), called GEGA, to estimate the compressive strength of high-performance concrete (HPC). The ...
Spectral Finite Element Analysis of Random Shrinkage in Concrete
Publisher: American Society of Civil Engineers
Abstract: The spectral method, previously generalized for aging linear systems, is applied in conjunction with the finite element method to analyze shrinkage stresses in aging viscoelastic structures exposed to random environmental ...
Under Cover Transport and Accumulation of Frazil Granules
Publisher: American Society of Civil Engineers
Abstract: The process of frazil jam evolution in ice-covered rivers is not well understood. In this paper, under cover transport of frazil granules and its relation to frazil jam evolution in rivers are studied. A concept of ice ...
Condensation in Microchannels: Detailed Comparisons of Annular Laminar Flow Theory With Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A relatively simple theory of annular laminar film condensation in microchannels, based on the Nusselt approximations for the condensate film and a theoretically based approximation for the vapor shear stress, has no ...
Algorithm for Aging Viscoelastic Structures Under Periodic Load
Publisher: American Society of Civil Engineers
Abstract: A numerical step‐by‐step algorithm for the analysis of concrete structures exposed to a periodic history of environmental humidity or temperature is presented. The creep law of concrete is assumed to be linear, and the ...
Low-Temperature and Fatigue Characteristics of Degraded Crumb Rubber–Modified Bitumen Before and After Aging
Publisher: ASCE
Abstract: The high viscosity and poor storage stability of crumb rubber–modified asphalt (CRMA) can be partially addressed by the appropriate degree of degradation of the crumb rubber modifier. However, the low-temperature and fatigue ...
Structural Health-Monitoring System Based on Multidimensional Coupling Self-Check and Remote-Control Strategy
Publisher: ASCE
Abstract: The structural health-monitoring system for a large bridge is a huge intelligent and integrated information system. Thus, conferring it with a self-checking function through a remote control is an important and difficult ...
Influence of SBS on the Aging Properties of High-Content Terminal Blend Rubber Modified Asphalt
Publisher: ASCE
Abstract: The goal of this study was to investigate the effect of styrene-butadiene-styrene (SBS) polymer on the aging properties of high-content terminal blend rubber modified asphalt (HCTBMA). All asphalt was tested for chemo-rheological ...
Nonlinear Interaction of an Elastic Pulse With a Frictional Contact Interface Between Two Anisotropic Dissimilar Media
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper analyses the interaction of an elastic pulse of arbitrary form with a frictional contact interface between two anisotropic solids which are pressed together and at the same time ...