Protecting Steel at High Temperatures.
Protecting Steel at High Temperatures.
(738 K)
Bentz, D. P.; White, C. C.
Modern Steel Construction, Vol. 49, No. 10, 49-52,
October 2009.
Keywords:
steels; high temperature; fire resistive materials;
steel structures; gypsum; color; test methods; thermal
conductivity; intumescent coatings; calorimeters; ASTM E
2584; methodology
Abstract:
Fire-Resistive Materials (FRMS) perform a critical,
life-saving function in buildings and structures, yet
have received surprisingly little attention from the
scientific community. At the National Institute of
Standards and Technology (NIST), our goals have been to
provide the measurement science infrastructure for
assessing FRM performance and optimizing the abilities
of these materials to protect steel structures during
fires. Some examples of FRMs are low-density gypsum or
cement-based materials containing fibers or lightweight
fillers. Other examples include intumescent coatings
that may expand up to 40 time in thickness during
exposure to a fire.