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Code of Practice for Foundations – CONCRETE FOUNDATIONS

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1.1.1                            CONCRETE FOUNDATIONS

Provisions for corrosion protection of concrete foundations should be given in the foundation plans where:

  • sulphate, chloride, aggressive chemical or other agents causing deterioration is present in the ground;
    • alkalis are present in the concrete and a high moisture content environment exists;
    • the foundations are constructed on a landfill site; or
    • damage by abrasion may occur.

To avoid the alkali-aggregate reaction occurring in reinforced concrete structures, the reactive alkali of concrete expressed as the equivalent sodium oxide per cubic metre of concrete should not exceed 3.0 kg.