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Data Analysis Session 4

Thermal Integrity Profiling of Concrete Deep Foundations. Data Analysis Session 4. Data Analysis Overview. Background (aka. theory) Analysis Software Sample Data Sets Time of testing calculations. Single Shaft Heat Signature. Elevated Shaft Concrete Temperature Distribution.

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Data Analysis Session 4

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  1. Thermal Integrity Profiling of Concrete Deep Foundations Data Analysis Session 4

  2. Data Analysis Overview • Background (aka. theory) • Analysis Software • Sample Data Sets • Time of testing calculations

  3. Single Shaft Heat Signature Elevated Shaft Concrete Temperature Distribution Higher Temperature Elevated Soil Temperature as well

  4. Single Shaft Heat Signature Higher Temperature

  5. Effects of Alignment or Radius Temperature (F) Radial Position (ft) Shaft Radius (ft)

  6. X axis (independent) Y axis

  7. Cage Offset • Compare Radii • T2 smaller than T4 • T3 smaller than T1 • Cage must be offset to the SE

  8. TIP Reporter Software

  9. TIP Data Setup • Field data input has limited input requirements • Update field data in TIP computer prior to starting the TIP Reporter software • Most significant • Tube length and stickup • Shaft and cage radius

  10. End Effect Time Factor

  11. Predicting Temperature Rise for time of testing Must know mix design with detailed cement and flyash reports (can change monthly) Must know geometry of shaft or other concrete element in question Must know environmental conditions (e.g. air temp, soil type, soil temp, etc.)

  12. Hydration Energy(Schindler, 2005) Cement Energy Production Total Energy Production

  13. Hydration Energy(Schindler, 2005) Degree of Hydration Rate of Energy Production

  14. Input Parameters(from concrete supplier)

  15. Heat Source Calculator

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