Laser Scan System to Establish 3-D Surface Texture and Predict Friction of Pavement

Abstract:

Friction of pavement is the most popular tropic which is concerned by drivers and engineers, surface texture are also widely regarded as key factor to influence it. The brief object of this study is to establish the relationship between 3 D texture and friction. In the study, the mixtures include Dense Grade Asphalt Concrete (DGAC), Stone Mastic Asphalt (SMA), and Porous Asphalt (PA). High Definition Scan Texture Machine (HDSTM) with 2D Laser CCD was adopted to measure the 2 D texture of Asphalt concrete specimens, and British Portable Tester (BPN) was also used to evaluate friction of various mixture specimen surfaces. The study was attempted to further create initial 3 D model with data of HDSTM and Computer Simulation Program. Correlation coefficients between the ratio of Surface area in unit area (SA/A) and friction was up to 0.8. SA/A could be regards as the best feasible factor to estimate the mixture surface in the ability of skid resistance, and. Based on above results, 3D texture parameter is remarkable for evaluation of friction and is was worthy of further study.

• Periodical: Applied Mechanics and Materials (Volume 145)
• Pages: 339-343
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.145.339
• Online since: December 2011
• Authors: Shih Huang Chen, Ching Tsung Hung, Chang Hua Yu, Hung Wen Chung, Chia Hao Chen
• Keywords: 2D Laser, 3D Friction, 3D-Texture

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