Sentence 9.3.1.7.(1)

Intent 1:

To limit the probability of:

• an inappropriate cement/aggregate ratio, or
• excessive water in concrete.

This is to limit the probability of:

• aggregate segregation,
• reduced compressive strength,
• increased shrinkage and cracking, or
• low resistance to air and moisture transfer for foundation walls and basement floors.

Where concrete supports or is used in chimneys or fireplaces, this is to limit the probability of the compromised integrity of the chimney or fireplace, which could lead to the ignition of combustible building components.

This is to limit the probability of harm to persons.