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This research employs a hydrothermal aging procedure to simulate indoor environmental conditions, systematically evaluating the durability of intumescent fire-resistant coatings for steel constructions over a projected 10-year service life. The aging behavior of the coatings was thoroughly analyzed through fire resistance time, adhesion strength, as well as XRF, XPS, and FT-IR characterization. The results indicate that most of the coatings exhibit good durability under indoor service conditions and are capable of meeting the requirements for long-term use over a 10-year period.

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Experimental Study on Artificial Hygrothermal Aging of Intumescent Fire-Resistant Coatings for Steel Construction Under Simulated Indoor Environment Conditions

  • 会议论文

  • 发表日期：

    2026年

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  • Tianhao Zhang,
  • Hao Huang,
  • Xinguo Ge

摘要

This research employs a hydrothermal aging procedure to simulate indoor environmental conditions, systematically evaluating the durability of intumescent fire-resistant coatings for steel constructions over a projected 10-year service life. The aging behavior of the coatings was thoroughly analyzed through fire resistance time, adhesion strength, as well as XRF, XPS, and FT-IR characterization. The results indicate that most of the coatings exhibit good durability under indoor service conditions and are capable of meeting the requirements for long-term use over a 10-year period.