Characterizing asphalt aging behaviors and rheological properties based on spectrophotometry
TL;DR: In this article, the authors developed a more comprehensive and straightforward method to distinguish asphalt aging degree, a potential new technique namely Spectrophotometry was introduced in order to develop a more straightforward method for quantitatively characterize the aging degree of asphalt.
About: This article is published in Construction and Building Materials.The article was published on 2020-09-30. It has received 27 citations till now. The article focuses on the topics: Dynamic shear rheometer & Asphalt.
Citations
More filters
TL;DR: Wang et al. as mentioned in this paper reviewed the application and development of pavement materials in sponge city and found that the permeable pavements were not necessarily more environmentally friendly than traditional pavement, but they did have some obvious benefits such as water purification, traffic noise reduction, Urban Heat Island mitigation, and waste materials recycling.
51 citations
TL;DR: In this paper, the low-temperature properties of polyethylene (PE) modified asphalt have long been a controversial issue and the state-of-the-art performance and evaluation methods of PE modified asphalt mixture were discussed as well as the factors that affect the low temperature performance of PEmodified asphalt mixture.
47 citations
TL;DR: In this article, the feasibility of waterborne acrylate and polyurethane, as novel potential modifiers, to further enhance performances of SBR/SBS modified asphalt emulsion was investigated.
33 citations
TL;DR: In this article, the effects of long-term aging on waste tire rubber (WTR) and amorphous poly alpha olefin (APAO) modified asphalt binder and mixtures were studied.
21 citations
TL;DR: In this paper, Fourier Transform Infrared Spectroscopy was used to evaluate the blending degree of virgin and aged asphalts involved warm mix additive, and some factors such as blending time, blending temperature, and RAP content on the blending efficiency were investigated in the study.
14 citations
References
More filters
TL;DR: In this paper, the role of asphaltenes in asphalt viscoelastic properties is investigated and it is shown that a temperature dependent solid fraction exists within a liquid (or glassy) matrix.
Abstract: Viscoelastic properties of paving grade asphalt cements (AC) were measured on a Rheometrics RDA II. Thermal properties were studied with a Mettler TA 2000 B differential scanning calorimeter. A review of the literature showed that most authors proposed that the time‐temperature superposition principle applies to asphalt over the whole temperature range. However, the results presented herein demonstrate that it indeed fails at high temperature, especially for high asphaltene content and high crystalline content materials. This paper focuses on the role of asphaltenes, which are, by definition, insoluble in n‐heptane. Asphaltenes are suspended in a colloidal manner within the AC matrix and are peptizided by the species called resins. Thus, a temperature dependent solid fraction exists within a liquid (or glassy) matrix. This paper shows that the viscoelastic properties of asphalt are bimodal: they are governed by both solid and continuous phases.
220 citations
TL;DR: In this paper, staged extraction is performed on an asphalt mixture blend on the premise that individual layers of asphalt binder can be removed from the mixture until all that remains is the aggregate Each binder layer is then tested and compared quantitatively using Gel Permeation Chromatography (GPC) and Fourier Transform Infrared Spectroscopy (FTIR) to identify the extent to which RAP and virgin binder blend.
197 citations
TL;DR: In this paper, Fourier transform infrared spectroscopy (FTIR) has been widely used as a fast and accurate tool for detecting and analyzing organic materials for several decades since it was initially introduced to study the asphalt material.
170 citations
TL;DR: In this paper, a review focused on the emerging Life Cycle Assessment (LCA) and Life Cycle Cost Analysis (LCCA) studies concerning the recycling of solid waste in highway pavement.
158 citations
TL;DR: In this paper, the properties of the Evotherm-DAT modified asphalt rubber (AR) binders (Evo-AR) were analyzed by characterizing the rheological properties and chemical compositions.
154 citations