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.
Where concrete is used in an environmental separator, this
is to limit the probability of:
- the compromised integrity of the environmental separator,
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.