Evaluation of Combining Heat Induction and Laser Ablation for the Removal of Potentially Hazardous Bridge Coatings

Details

• Creators:
  Sharp, Stephen R ; Provines, Jason T. ; Gillespie, James S. ; Moffat, William ; Wilson, David L ; Rickard-Passaro, Raquel ; Fitz-Gerald, James M ; Agnew, Sean R
• Corporate Creators:
  Virginia Transportation Research Council (VTRC)
• Corporate Contributors:
  Virginia. Department of Transportation
• Subject/TRT Terms:
  Adhesion Bridges Coatings Costs Health Induction Heating Laser Beams Life Cycle Costing Maintenance Maintenance Personnel Safety Zinc Coatings

  More +
• Publication/ Report Number:
  VTRC 26-R10
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Virginia
• Corporate Publisher:
  Virginia. Department of Transportation
• Abstract:
  This project aimed to evaluate whether combining induction coating removal (ICR) and laser ablation coating removal (LACR) could be combined to remove hazardous bridge coatings at practical rates. This study included evaluations of the coating removal rates, surface cleanliness, surface profile, steel substrate mechanical properties, recoating adhesion performance, field demonstrations, and environmental and industrial hygiene evaluations of ICR, LACR, and ICR first plus LACR afterward (ICR+LACR). Coating removal data showed that using ICR+LACR could result in a coating removal rate approximately 10 times faster than using LACR alone. ICR can quickly remove the bulk coating layers but leave the residual primer on the steel surface. LACR can then quickly remove the remaining primer layer to provide a clean surface ready to be recoated.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:098418d18b677a5d8bdcc7a64a90ae599811206600371de662271e63a1672e7dae863e310e07f8ca8872e16139f247e2804dc088068f3076d6e1404a890bb683
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/86594/dot_86594_DS1.pdf
• File Type:
  [PDF - 3.80 MB ]