Durability Evaluation of Intumescent Coating for Steel Frames

This paper reports on the results of experimental studies on the durability of intumescent coating for steel frames. Intumescent coatings are fireproof materials that provide the thermal insulation of steel structures. They start to foam when the surface temperature reaches about 300°C by heating and form a layer of carbonaceous char 25 to 50 times thicker than at room temperature. However, their durability or long-term fireproofing is not clear. Preliminary accelerated tests and small-scale heat tests were conducted, and it was found that water is the principal environmental factor that affects the durability of intumescent coatings. Another series of accelerated tests and exposure tests was then performed mainly for water resistance. The fire resistance of specimens after degradation was verified in full-scale heat tests. As a result of these tests, a new testing method was proposed for evaluating the durability of intumescent coatings by considering the high-temperature and high-humidity weather conditions of Japan.

• Record URL:
  https://doi.org/10.1061/(ASCE)0899-1561(2001)13:4(274)
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • © 2001 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Sakumoto, Y
  • Nagata, J
  • Kodaira, A
  • Saito, Y
• Publication Date: 2001-7

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 274-281
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 13
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Accelerated tests; Degradation (Thermodynamics); Fire resistant coatings; Heat insulating materials; High temperature; Humidity; Steel structures
• Geographic Terms: Japan
• Subject Areas: Bridges and other structures; Highways; Materials; I30: Materials;

Filing Info

• Accession Number: 01562319
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Apr 11 2015 3:11PM