Modeling of Asphalt Concrete

Biological Applications Of Infrared Spectroscopy

Investigating bitumen long-term-ageing in the laboratory by spectroscopic analysis of the SARA fractions

Sustainable and resilient pavement infrastructure is critical for current economic and environmental challenges. In the past 10 years, the pavement infrastructure strongly supports the rapid development of the global social economy. New theories, new methods, new technologies and new materials related to pavement engineering are emerging. Deterioration of pavement infrastructure is a typical multi-physics problem. Because of actual coupled behaviors of traffic and environmental conditions, predictions of pavement service life become more and more complicated and require a deep knowledge of pavement material analysis. In order to summarize the current and determine the future research of pavement engineering, Journal of Traffic and Transportation Engineering (English Edition) has launched a review paper on the topic of “New innovations in pavement materials and engineering: A review on pavement engineering research 2021”. Based on the joint-effort of 43 scholars from 24 well-known universities in highway engineering, this review paper systematically analyzes the research status and future development direction of 5 major fields of pavement engineering in the world. The content includes asphalt binder performance and modeling, mixture performance and modeling of pavement materials, multi-scale mechanics, green and sustainable pavement, and intelligent pavement. Overall, this review paper is able to provide references and insights for researchers and engineers in the field of pavement engineering.

New innovations in pavement materials and engineering: A review on pavement engineering research 2021

Ultraviolet ageing of bituminous materials: A comprehensive literature review from 2011 to 2022

Understanding bitumen ageing by investigation of its polarity fractions

Aging of asphalt binders is one of the main causes of its hardening, which negatively affects the cracking and fatigue resistance of asphalt binders. Understanding asphalt aging is crucial to improve the durability of asphalt pavements. In this regard, this study aims at understanding and differentiating the effect of temperature and oxygen uptake on the aging mechanisms of unmodified asphalt binders. For that, four laboratory aging procedures were employed. The two standardized procedures, rolling thin-film oven test (RTFOT) and pressure aging vessel (PAV), were considered to simulate the short-term and long-term aging of the asphalt binders, respectively. In addition, two thin-film aging test procedures, the nitrogen atmosphere oven aging test (NAAT) and ambient atmosphere oven aging test (OAAT) were employed to assess the effect of thermal and oxidative aging on unmodified asphalt binder properties. The NAAT procedure is based on the principle that the inert gas minimizes the oxidative aging. The rheological and chemical characterization showed that the high temperatures considered during the NAAT procedure did not change the properties of the unmodified asphalt binders. Therefore, it can be hypothesized that no significant thermal and oxidative aging was observed during NAAT aging procedure for the considered binders and that oxidative aging is the main cause for the hardening.

https://www.mdpi.com/1996-1944/13/19/4438/pdf

Effect of Thermal and Oxidative Aging on Asphalt Binders Rheology and Chemical Composition

Asphalt binder ageing alters its chemical and physical properties in a manner to make it brittle and more susceptible to thermal and fatigue cracking. The ageing rate of asphalt binders depends on ...

https://www.tandfonline.com/doi/pdf/10.1080/14680629.2021.1906738

Ingrid Camargo

Papers

Understanding bitumen ageing by investigation of its polarity fractions

Investigating bitumen long-term-ageing in the laboratory by spectroscopic analysis of the SARA fractions

Effect of Thermal and Oxidative Aging on Asphalt Binders Rheology and Chemical Composition

Anti-aging additives: proposed evaluation process based on literature review

Time and Storage Dependent Effects of Bitumen—Comparison of Surface and Bulk