Generally, concrete exhibits higher fire-resistance properties
than steel does.1,2 Therefore, under fire conditions the
temperature rise in prestressing strands often governs the
fire resistance of hollow-core slabs. In hollow-core slabs,
the presence of void cores affects the thermal inertia of
slabs, influencing temperature transmission through the
slab thickness. The transmission of heat from the fire
source to the slab is through radiation and convection,
Generally, concrete exhibits higher fire-resistance propertiesthan steel does.1,2 Therefore, under fire conditions thetemperature rise in prestressing strands often governs thefire resistance of hollow-core slabs. In hollow-core slabs,the presence of void cores affects the thermal inertia ofslabs, influencing temperature transmission through theslab thickness. The transmission of heat from the firesource to the slab is through radiation and convection,
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