Properties of Concrete at Elevated Temperatures

TLDR

Concrete’s fire response depends on its thermal, mechanical, and deformation properties, which vary with temperature, mix composition, heating rate, and environmental conditions. The chapter outlines key concrete characteristics that influence fire resistance performance. It presents how thermal, mechanical, deformation, and spalling properties vary with temperature across different concrete types.

Abstract

Fire response of concrete structural members is dependent on the thermal, mechanical, and deformation properties of concrete. These properties vary significantly with temperature and also depend on the composition and characteristics of concrete batch mix as well as heating rate and other environmental conditions. In this chapter, the key characteristics of concrete are outlined. The various properties that influence fire resistance performance, together with the role of these properties on fire resistance, are discussed. The variation of thermal, mechanical, deformation, and spalling properties with temperature for different types of concrete are presented.