Evaluation of thin epoxy system overlays for concrete bridge decks : final report.

Details

• Alternative Title:
  Evaluation of thin epoxy system overlays for concrete bridge decks.
• Creators:
  Rasoulian, Masood ; Rabalais, Nick
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  Louisiana. Dept. of Transportation and Development ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Concrete bridges
  • Bridge decks
  • Friction course
  • Overlays (Pavements)
  • Thin epoxy aggregate overlay systems
  • skid resistance
  • friction number
  • concrete bridge deck
• Publication/ Report Number:
  FHWA/LA-91/243
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  Four overlay systems were applied to concrete bridge decks in north Louisiana in May 1995 to evaluate their performance as friction surface and also as concrete sealers. Dural Flexolith, Poly-Carb Flexogrid, and Con/Chem Con/Crete were placed on three separate bridge deck; sand and Dural epoxy were placed on the fourth deck. Friction numbers were measured with the British Portable Tester and the E-274 Skid Trailer. The sealing characteristics of each system were checked with electrical resistivity measurements. ; A five-year evaluation determined that Dural Flexolith and basalt aggregate and Poly-Carb Flexogrid (broadcast systems) provided very good friction characteristics. They were also crack resistant and remained bonded to the concrete. The use of sand and Dural epoxy produced a less effective surface for skid resistance, but its use is more intended for low ADT applications. The mortar system (Con/ChemCono/Crete) produced low skid numbers initially but improved slightly over the evaluation period.
• Format:
  PDF
• Funding:
  La.HPR Study #84-2C
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/22184/dot_22184_DS1.pdf
• File Type:
  [PDF - 4.31 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:3764e2c53b9be9d5761c0126519f866af963f832d53442535de2a299a8a0be62099e3c2b8498f55e98b5058f5abc6b41e0e017a4b30e96e001d22de4d8834dbb