Guoxiong Wu's research while affiliated with Chongqing Jiaotong University and other places

Publications (8)

Article
Bitumen’s evolution during aging includes oxidation, aromatization, chain scission, and carbonation, which alter bitumen’s properties of diffusivity and thermal conductivity and consequently bitumen’s healing capacity. To improve bitumen’s healing capacity after aging, there is a need to revitalize aged bitumen and restore its properties. This stud...
Article
Full-text available
Based on the promoting effect of metal material on the healing property of asphalt binder, this study evaluated the merits of using taconite (an iron-containing filler from iron-mine tailings) to promote the healing performance of asphalt binder. Samples of asphalt binder modified with three different dosages of taconite were tested by a thermal co...
Article
This article presented the latest development of testing methods concerning surface textures and skid resistance of asphalt pavements. A review of the repeatability and harmonization of field-testing methods for macrotexture is outlined. Measuring methods of skid resistance both in lab and in situ are reviewed. The harmonization research on the lab...
Article
This study examines the healing capacity of an asphalt mixture after the introduction of an iron-based additive (iron slag). It is hypothesized that iron-based additives can facilitate healing of asphalt pavement by enhancing the thermal conductivity of the asphalt pavement. To study the healing capacity of asphalt mixtures containing iron slag, sp...
Article
This study proposes a newly developed real-time testing system, namely, a tire-pavement dynamic friction analyzer (TDFA), to measure the dynamic friction coefficient between tire and pavement. Based on the self-developed TDFA, the friction coefficient between tire and pavement can be measured in real-time in the lab. A number of working conditions...
Article
Full-text available
The skid-resisting performance of pavement is a critical factor in traffic safety. Recent studies primarily analyze this behavior by examining the macro or micro texture of the pavement. It is inevitable that skid-resistance declines with time because the texture of pavement deteriorates throughout its service life. The primary objective of this pa...

Citations

... However, what is characterized by this model is usually the pavement friction coefficient under full-locked state, and large errors exist in the practical application [11]. In addition, the microtexture has not been fully considered in the above commonly used pavement friction coefficient models, which will influence the prediction accuracy of friction coefficient [12][13][14][15][16][17]. ough applicable to engineering detection, they are not accurate enough when used in evaluation and research on pavement antiskid performance. ...
... The relationship between road texture profile and its friction coefficient is an active area of research in pavement engineering [19]. Rajaei et al. [20] have reviewed the literature on the contribution of pavement micro-texture surface to surface friction. ...
... Compared to the parameters of the other five molecular components, although the correlation among the LMS and CII of asphalt, asphaltenes and the rheological properties of asphalt decreased, it was kept between 0.6 and 0.7. The grey relation theory suggested that the correlation was considered prominent if the correlation between two indicators is greater than 0.6 [43]. Based on the test results, the correlation between parameters of eight molecular components and three asphalt rheological indicators was greater than 0.6. ...
... The anti-skid performance of pavement is one of the major influencing factors of traffic accidents. Inadequate skid-resistance may decrease the braking efficiency of vehicles, contributing to accidents, including collisions [1,2]. Whether exhibiting the pure skidding behavior of lock slip or the usual simultaneous rolling-skidding state of vehicles, the tirepavement friction behavior is the control factor of the braking effect since the braking force of the tire on the pavement is significantly higher than the rolling resistance in the braking process [3,4]. ...
... Subsequently, the partial 3D model and an integrated threedimensional model of the tire can be generated in turn in ABAQUS, as shown in Figure 1. the tire-pavement contact behaviors were defined, accompanied with the set of loading and boundary conditions, to realize the tire-pavement assembly, as illustrated in Figure 2. More details on modeling and assembly can be found in Reference [21]. In addition, the construction steps of the pavement texture model are illustrated as follows. ...