Advances in Computed Tomography for Geomaterials: GeoX 2010

Deformation Characteristics of Tire Chips-Sand Mixture in Triaxial Compression Test by Using X-ray CT Scanning

Y. Kikuchi¹ — T. Hidaka² — T. Sato³ — H. Hazarika⁴

¹Port and Airport Research Institute3-1-1, Nagase, Yokosuka, Kanagawa 239-0826, [e-mail]

 

²Toa Corporation1-3, Anzen-cho, Tsurumi-ku, Yokohama 230-0035, [e-mail]

 

³Kumamoto University2-39-1, Kurokami, Kumamoto City, Kumamoto 860-8555, [e-mail]

 

⁴Akita Prefectural University84-4, Aza Ebinokuchi, Tsuchiya, Yurihonjo City, Akita 015-0055, [e-mail]

ABSTRACT. In this paper, the deformation characteristics of a mixture of tire chips and sand are discussed. First a series of drained triaxial compression tests (CD tests) on a rubber sphere specimen and the tire chips specimen was conducted to observe the deformation behavior of a rubber particle aggregate. From the movement of the rubber sphere traced on computer tomography (CT) images, the basic deformation characteristics of the rubber particle aggregate were considered. Then, a series of CD tests on the tire chips and sand mixture was conducted and the changes in the shape of each specimen before and after compression were shown by CT images. Moreover, the Particle Image Velocimetry (PIV) method was applied to CT images scanned during the test, and the deformation characteristics of the tire chips and sand mixture based on the PIV results were shown. The effect that adding tire chips had ...