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9.3.1.6.(1)
OS2OP2OH1OH4OS3OS1OS2OP2OH1OS3OS2OP2OS3
ObjectiveOP2 Structural Sufficiency of the Building
Attribution
Application
Application 1: 
Minimum compressive strength of cast-in-place concrete that is not required to be reinforced that is used in garage and carport floors and exterior steps, including steps providing structural support (to guards or handrails, for example), where exposure to de-icing salts, water from rain or melting snow, freezing and thawing stresses, traffic, abrasion or other severe exposure conditions is likely.
This applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability of an inadequate resistance to freeze-thaw stresses, de-icing salts, abrasion or traffic, which could lead to the excessive shrinkage, cracking and premature failure of concrete.
This is to limit the probability of compromised structural integrity, which could lead to structural failure.
This is to limit the probability of:
  • the space being unsuitable for its intended use, and
  • damage to the building.
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