Experimental and Analytical Studies on Interface between Tire and Pavement

Jafari, Khashayar | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49773 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Toufigh, Vahab
  7. Abstract:
  8. Understanding and defining mechanical behavior of engineering materials play an important role in the prediction of material response as well as analysis and design of engineering structures. In this investigation, polymer concrete (PC) with three different epoxy resin contents, ordinary cement concrete (OCC), lightweight concrete (LWC) and lime-mortar soil (LMS) have been studied under uniaxial and triaxial compression tests to determine their mechanical behavior by measuring axial stress-strain and volumetric strain versus axial strain curves. According to the results, PC showed higher strength, ductility and energy absorption than that of OCC and LWC. Nowadays, waste tire rubber is used in concrete and has economic and environmentally benefits. Here, different percentages of waste tire rubber were utilized to replace fine and coarse aggregate in polymer concrete (PC). Destructive and non-destructive tests were carried out to evaluate the mechanical properties of specimens. Based on results, the use of waste tire rubber reduced the workability and increased the porosity of the mixture. However, adding waste tire rubber to PC reduced density and improved ductility and cost effectiveness. Furthermore, an experimental study of interface between tire and pavement surface were carried out. Three types of pavement surfaces, asphalt concrete (AC), cement concrete (CC), and polymer concrete (PC), and two types of tires, ribbed and smooth, were used in this investigation. Direct shear test (DST) device was modified and proposed to determine sliding friction coefficient under dry and wet conditions. Results obtained from DST was compared with British Pendulum Number (BPN) and a high correlation was obtained. Afterward, a loaded wheel tester (LWT) was designed and utilized to measure the abrasion resistance of pavement surfaces. According to DST and BPN results, PC under dry and wet conditions had the highest and lowest sliding friction coefficient, respectively
  9. Keywords:
  10. Triaxial Compression Test ; Mechanical Properties ; Polymer Concrete ; Waste Tire Rubber ; Tire and Pavement Interface

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