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RISCharacterization of Roadway Epoxy Asphalt Binder with Different Epoxy Contents
Publisher: American Society of Civil Engineers
Abstract: The increasing durability demand on pavements has led to the formulation of requirements for broader applications of epoxy asphalt in roadway pavements to achieve supreme performance. However, for decades, epoxy asphalt ...
Performance Evolution Mechanism of Hot-Mix Epoxy Asphalt Binder and Mixture Based on Component Characteristics
Publisher: ASCE
Abstract: In-depth exploration of the performance evolution process of hot-mix epoxy asphalt binder (HEAB) with different components can help control costs and facilitate its promotion and application in engineering. In this study, ...
Reducing Epoxy Resin Content in a Thermosetting Epoxy Asphalt Mixture: A Feasible Method to Facilitate Application
Publisher: ASCE
Abstract: Epoxy asphalt (EA) with an epoxy resin (EP) content of 50 wt% has been widely used in steel bridge decks and airport pavements. However, the high cost of EP and the high EP content in EA limit the application of this ...
Damage Constitutive Model and Acoustic Emission Characteristics of Recycled Composite Micropowder Concrete under Coupling of Freeze–Thaw Cycles and Bending Load
Publisher: American Society of Civil Engineers
Abstract: In order to study the damage evolution characteristics of recycled composite micropowder concrete (RCMC) under the coupling of freeze–thaw cycles and bending load and establish a damage constitutive model, a test of the ...
Performance Evaluation of Thermosetting and Thermoplastic Polyurethane Asphalt Mixtures
Publisher: ASCE
Abstract: Polyurethane (PU) asphalt binders have been proved to be a promising class of paving materials for steel bridge deck or highway road. This study further evaluated the performance of a thermosetting-PU (TS-PU) asphalt mixture ...
Laboratory Investigation of PPG-TDI Polyurethane–Modified Asphalt Binders and Mixtures
Publisher: ASCE
Abstract: Considering the defects of insufficient low-temperature flexibility and high cost of epoxy asphalt binder, low-cost polypropylene glycol (PPG) and toluene diisocyanate (TDI) were used to synthesize two polyurethane (PU) ...
Laboratory Study and Molecular Dynamics Simulation of High- and Low-Temperature Properties of Polyurethane-Modified Asphalt
Publisher: ASCE
Abstract: This study investigated the modification mechanism of polyurethane (PU) on the high- and low-temperature properties of asphalt based on experimental and molecular dynamics (MD) simulations. PU-modified asphalt was prepared ...
Investigation on the High- and Low-Temperature Performance of Organic Rectorite and Polyurethane Composite-Modified Asphalt Binder
Publisher: ASCE
Abstract: Organic rectorite (OREC) can significantly improve the resistance of asphalt to deformation and aging, but it tends to cause low-temperature cracking. To solve this defect, a novel idea that develops an OREC and polyurethane ...
Effects of Polyurethane Thermoplastic Elastomer on Properties of Asphalt Binder and Asphalt Mixture
Publisher: ASCE
Abstract: Polyurethane (PU) is a synthetic material available for researchers to be designed in terms of their demands. This study prepared a novel polyurethane thermoplastic elastomer (PUTE) as an asphalt modifier through the ...