Document Type

Data Set

Publication Date

Winter 2024

Abstract

Every year, the United States invests billions of dollars in maintaining its roads and enhancing road safety, especially during severe weather conditions. Challenges such as flooding, snow, ice formation, and low visibility significantly affect road infrastructure and safety. The aim of this study was to develop a novel approach to create a new generation of multifunctional asphalt surfaces with enhanced water repellency and luminescent properties. To achieve this objective, two types of asphalt emulsions (BC-1HT and CSS-1H), one type of superhydrophobic nanomaterial (PTFE), and one SMA mix design were evaluated through various laboratory tests. These tests included scanning electron microscopy (SEM), water contact angle (WCA), asphalt mix permeability, and luminescent measurements. The results were statistically analyzed to determine the influence of the superhydrophobic materials' dosage rate and the type of emulsion on the water repellency performance of the modified asphalt emulsions. SEM images revealed that the superhydrophobic material could enhance the water repellency of asphalt emulsions. All tested emulsions showed increased water resistance after the addition of the superhydrophobic material, with BC-1HT residual asphalt emulsion coatings performing better than CSS-1H coatings in repelling water. Generally, a higher PTFE content led to improved water repellency. Luminescent measurements revealed that CSS-1H emulsions had greater Effective Luminescent Area Ratios (ELAR) compared to BC-1HT emulsions. All the formulated asphalt emulsions exhibited luminescent properties, indicating the potential for creating modified asphalt emulsions with integrated hydrophobic and luminescent characteristics.

Comments

Tran-SET Project 22ALSU27

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