9.20.3.1.(1)

Objective

OS1 Fire Safety

Attribution

[F20,F80-OS1.2]Applies to assemblies required to provide fire resistance.

Intent

Intent 1:

To limit the probability that the performance of cement and aggregate under expected structural and environmental loads will fall significantly below expectations, which could lead to cracking at mortar joints and inadequate bonding to masonry units.

Where assemblies are required to provide fire resistance, this is to limit the probability of compromised fire resistance of the assembly, which could lead to harm to persons.

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