Profile Features of Emulsified Asphalt Mixture Containing Steel Slag Based on Laser Scanning

Wang, Rui; Cui, Peide; Zhang, Xiaoshan; Yunusa, Mujaheed; Xiao, Yong

doi:10.3390/ma13122679

Cited by 12 publications

(3 citation statements)

References 37 publications

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“…Ames Engineering has developed a laser scanner SLP, which uses the principle of laser triangulation reflection to obtain the function of the fluctuation amplitude of the measured pavement surface changing with the moving distance. Wang et al [24] developed a laser texture device to test the profile of different micro surfacing pavements and indicated that the use of steel slag can benefit the skid resistance of pavement. However, considering the current measurement and evaluation of asphalt pavement texture, the low scanning accuracy limited to the scale of macro pavement texture still exists.…”

Section: Introductionmentioning

confidence: 99%

Assessing Surface Texture Features of Asphalt Pavement Based on Three-Dimensional Laser Scanning Technology

Chen

Xiong

et al. 2021

Buildings

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Pavement surface texture features are one of key factors affecting the skid resistance of pavement. In this study, a set of stable and reliable texture measurement equipment was firstly assembled by using the linear laser ranging sensor, control system and data acquisition system. Secondly, the equipment was calibrated, and the superposition error of sensor and control system was tested by making a standard gauge block. Thirdly, four different kinds of asphalt mixture were designed, and their surface texture features were obtained by leveraging a three-dimensional laser scanner. Therefore, the surface texture features were characterized as one-dimensional profile features and three-dimensional surface features. At the end of this study, a multi-scale texture feature characterization method was proposed. Results demonstrate that the measurement accuracy of the laser scanning system in the x-axis direction can be controlled ranging from −0.01 mm to 0.01 mm, the resolution in the XY plane is 0.05 mm, and the reconstructed surface model of surface texture features can achieve a good visualization effect. They also show that the root mean square deviation of surface profiles of different asphalt pavements fluctuates greatly, which is mainly affected by the nominal particle size of asphalt mixture and the proportion of coarse aggregate, and the non-uniformity of pavement texture distribution makes it difficult to characterize the roughness of asphalt pavement effectively by a single pavement surface profile. This study proposed a texture section method to describe the 3D distribution of road surface texture at different depths. The macrotexture of the road surface gradually changes from sparse to dense starting from the shallow layer. The actual asphalt pavement texture can be characterized by a simplified combination model of “cone + sphere + column”. By calculating the surface area distribution of macro and microtextures of different asphalt pavements, it was concluded that the surface area of asphalt pavement under micro scale is about 1.8–2.2 times of the cutting area, and the surface area of macrotexture is about 1.4 times of the cutting area. Moreover, this study proposed texture distribution density to characterize the roughness of asphalt pavement texture at different scales. The SMA index can represent the macroscopic structure level of different asphalt pavements to a certain extent, and the SMI index can well represent the friction level of different asphalt pavements.

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Section: Introductionmentioning

confidence: 99%

Assessing Surface Texture Features of Asphalt Pavement Based on Three-Dimensional Laser Scanning Technology

Chen

Xiong

et al. 2021

Buildings

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show abstract

“…At present, many researchers are focusing on this topic, and construction and building materials have been considered as the best way to reuse such an enormous amount of industry silicate solid wastes [ 1 ]. For instance, steel slag has been successfully used in pavement engineering [ 2 , 3 , 4 ], fly ash is widely reused as cementitious materials in concrete [ 5 , 6 , 7 ], and waste tire rubber can be reused to improve the rutting resistance of asphalt pavement [ 8 , 9 , 10 ]. Along with these developments, there are still many challenges that should be further discussed.…”

mentioning

confidence: 99%

“…Steel slag, a by-product from the steel-making industry treated as a typical solid waste, was reused in pavement engineering as aggregate. Feng used steel slag for pavement micro-surfacing and characterized its surface profile by laser scanning [ 3 ]. They found that steel slag can improve the skid resistance of pavement micro-surfacing due to its advantages of excellent polish resistance.…”

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confidence: 99%