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RISTest Method on Adhesive Property of Joint Sealant in Supporting Layer of Ballastless Slab Track
Publisher: ASCE
Abstract: The current test method cannot predict the properties of a joint sealant accurately, and therefore this paper proposes a new test method to evaluate its adhesive property. Field investigation was conducted to examine the ...
Safety Performance Evaluation of the New Mega Elliptical Roundabout Interchanges Using the Surrogate Safety Assessment Model
Publisher: ASCE
Abstract: Mega elliptical roundabouts are considered a new kind of intersection and can be found on rural multilane highways. Their form is that of an elongated ellipse. They combine the best advantages of an unconventional median ...
Water-Pressure Synergy Mechanisms of Pressure-Driven Geopolymer Granulation of Solid Waste
Publisher: American Society of Civil Engineers
Abstract: Using solid waste to produce artificial aggregate (AA) to replace natural aggregate has attracted extensive research interest. This study proposes pressure granulation under minor water to produce AA. The strength formation ...
Analysis of Critical Structure Responses for Flexible Pavements in NCHRP 1-37A Mechanistic-Empirical Pavement Design Guide
Publisher: American Society of Civil Engineers
Abstract: Accurate determination of critical structure responses plays a vital role in the ability of the
Design and Performance Evaluation of Cold Recycled Mixture with Emulsified Asphalt
Publisher: American Society of Civil Engineers
Abstract: Given the raveling sensitive characteristics of cold recycled mix (CRM) with emulsified asphalt (EA), new procedure of mix design and performance evaluation was proposed. For the mix design, modified Superpave mix-design ...
Developing Rules of Adhesive Properties and Mechanism of Ballastless-Track Sealants in Shear-Fatigue Loading
Publisher: ASCE
Abstract: There is no method for evaluating the shear-fatigue resistance of sealants installed in the supporting layer of ballastless track, and the degradation mechanism of sealants under shear-fatigue loading has not been studied ...
Skeleton Filling System Evaluation Method of Asphalt Mixture Based on Compressible Packing Model
Publisher: ASCE
Abstract: Asphalt mixtures are composed of skeleton aggregate and filling mortar. Skeleton stability and mortar filling state are of great significance to asphalt mixture performance. First, the aggregate in asphalt mixture is ...
Reversibility of Macroperformance of Virgin Asphalt Binder at Various Aging-Regeneration Stages Based on Rheology
Publisher: ASCE
Abstract: In order to effectively evaluate the regeneration effects of different rejuvenators on aged asphalt binder, this study carried out a series of tests and evaluations on the macroperformance of virgin asphalt binder at various ...
Characterization of Phase Structure and Performance Degradation of Aged SBS-Modified Asphalt
Publisher: ASCE
Abstract: Although previous studies have broadly explored the aging process of styrene-butadiene-styrene (SBS)-modified asphalt, there still is a lack of understanding of the precise evolution patterns of its phase structure during ...
Thermoregulation Performance and Mechanical Properties of Phase Change Asphalt Mortars
Publisher: American Society of Civil Engineers
Abstract: This study investigated the effects of a diatomite/tetradecane composite shaped phase change material (CSPCM) on the mechanical properties and thermoregulation performance of styrene-butadiene-styrene (SBS)- and ...