Study Asphalt Mixture Damage Characteristics Based on X-CT Technology

Abstract:

In order to research the development of the internal cracks and the evolution of damage in asphalt mixture under loads, German Compact-225 type industrial X-ray computerized tomography (X-CT) was used to scan the specimen of asphalt mixture and the visualization of the internal damage process could be achieved, the damage under loads in various stages could be described accurately. Then, the damage evolution process was analyzed by calculating CT numbers, and a curvilinear relationship between the damage variable and the strain-stress was established. The results indicate that X-CT technology can be used as an effective way to detect and analyze the meso-damage of the asphalt mixture and that it further provides an important basis for quantitatively describing the evolution rule of the meso-damage.

• Periodical: Advanced Materials Research (Volume 831)
• Pages: 401-406
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.831.401
• Online since: December 2013
• Authors: Zhi Yong Wu*, Xiao Ning Zhang, Hong You, Cheng Wan
• Keywords: Asphalt Mixture (AC), CT Number, Damage, Highway Engineering, X-CT

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