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Project PPT Rev2.pptx

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Project PPT Rev2.pptx

  1. 1. Cost effective and efficient mechanized techniques for rectification of pavement defects. Marthota Ashok Kumar 2020CEC2790 Institute Guide: Dr. Deepak Kumar (ITMEC)
  2. 2. Literature review on different defects observed in Flexible and Rigid pavements Alligator Cracking Block cracking Longitudinal (Linear) Cracking Transverse Cracking Edge Cracks Joint Reflection Cracks Slippage Cracks Potholes Depressions (bird baths) Rutting Shoving Upheaval Oil Spots
  3. 3. Severity levels Low level of intensity (L): fine, longitudinal hairline cracks running parallel to each other with one or only a few interconnecting cracks. The cracks are not spalled. (Average width less than 0.25 inch) Average level of intensity (M): further development of light alligator cracks into a pattern or network of cracks that may be lightly spalled. (Average width 0.25 – 0.75 inch) Higher level of intensity (H): network or pattern cracking has progressed so that the pieces are well defined and spalled at the edges. Some of the pieces may rock under traffic .Potholes of all sizes are recorded as high severity alligator cracking. (Average width more than 0.75 inch)
  4. 4. Types of Repair Options • Slurry Seal • Depth Patch • Overlay • Reconstruction • Crack Seal • Recycle Surface • Thin Overlay • Milling and Repave • Base repair and repave
  5. 5. Detection and Monitoring of Bottom-Up Cracks in Road Pavement Using a Machine-Learning Approach • The method considers the road pavement as a filter of the acoustic and seismic waves. • These latter are generated by a mechanical source (i.e., the vehicular trac), travel into the medium (i.e., the road pavement), and finally are detected by a receiver (i.e., a microphone isolated from the airborne noise, attached on the road surface in a nondestructive way, connected to an external soundcard, in turn connected to a laptop running the MATLAB code used to record sounds). • Consequently, the related data set consists of the acoustic responses (ARs) of the road pavements to the loads induced by the vehicles.
  6. 6. Road repair conditions Loading conditions & effect of environment. Driving force for the cracks. • Airport runways - impact • National Highways - cyclic • Bridges • Service Roads • Racetracks • Earthquake prone areas • Volcanos erupted areas
  7. 7. Objectives • Odd Semester: Failure Data Collection with respect to loading conditions and crack type on the Pavements. Data collection regarding repair options and cost effectiveness. • Even Semester: Studying the effectiveness and optimization of rectification techniques used and the cost effectiveness of Pavements. • A few case scenarios will be analyzed with the help of guide from the L&T.
  8. 8. Thank You

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