Intent 1:
To limit the probability of:
- insufficient compressive strength to resist expected
gravity loads, or
- the excessive shrinkage, cracking and premature failure
of concrete.
Where concrete is used in an environmental
separator, this is to limit the probability of:
- the compromised integrity of the environmental separation
elements, or
- an inadequate resistance to air and moisture transfer
through the concrete.
This is to limit the probability of:
- pollutant ingress (from the exterior, including soil
gas)
- condensation,
- the ingress of moisture from the ground, or
- the compromised thermal performance of components intended
to provide resistance to heat transfer.
This is to limit the probability of:
- the generation of pollutants from biological growth
or from materials that become unstable on wetting,
- deterioration, which could lead to further compromised
integrity of environmental separators, or
- an inadequate control of indoor air and surface temperatures,
drafts, relative humidity, or water accumulation.
This is to limit the probability of:
- negative effects on the air quality of indoor spaces,
- the inadequate thermal comfort of persons, and
- contact with moisture.
This is to limit the probability of harm to persons.