Critical Factors Governing the Fire Performance of High Strength Concrete Systems.
Critical Factors Governing the Fire Performance of High
Strength Concrete Systems.
(778 K)
Kodur, V. K. R.; Phan, L.
Fire Safety Journal, Vol. 42, No. 6-7, 482-488,
September/October 2007.
Keywords:
concretes; fire resistance; reinforced concretes;
concrete columns; spalling; structural members;
temperature; fire endurance tests; silica fume; moisture
content; aggregates; density effects
Abstract:
High strength concrete (HSC), is being increasingly used
in a number of building applications, where structural
fire safety is one of the major design considerations.
Many research studies clearly indicate that the fire
performance of HSC is different from that of normal
strength concrete (NSC) and that HSC may not exhibit
same level of performance (as NSC) in fire. This paper
discusses the material, structural and fire
characteristics that influence the performance of HSC
under fire conditions. Data from earlier experimental
and numerical studies is used to illustrate the impact
the concrete (material) mix design and structural
detailing (design) has on fire performance of HSC
systems. An understanding of various factors influencing
fire performance will aid in developing appropriate
solutions for mitigating spalling and enhancing fire
resistance of HSC members.
