Intent 1:
To limit the probability that concrete block of
inadequate compressive strength will be used, which could lead to:
- an inadequate resistance to water absorption, which
could lead to excessive water absorption, which could lead to blocks
cracking due to freeze-thaw stresses, or
- an inability to support loads, which could lead to blocks
cracking.
This is to limit the probability of:
- compromised structural integrity, or
- where elements support or are part of an environmental
separator, the displacement or failure of required environmental separation
elements, which could lead to the deterioration of building elements.
For floors and elements supporting floors, this is to limit
the probability of excessive deflection, which could lead to rough
or uneven walking surfaces, which could lead to persons tripping or
falling, which could lead to harm to persons.