| 4.2.3. |
Materials Used in Foundations |
| 4.2.3.1. |
Wood
- Wood used in foundations or in support of soil or rock shall conform with the appropriate requirements of Subsection 4.3.1.
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| 4.2.3.2. |
Preservation Treatment of Wood
- Wood exposed to soil or air above the lowest anticipated groundwater table shall be treated with preservative in conformance with CAN/CSA-O80 Series, "Wood Preservation," and the requirements of the appropriate commodity standard as follows:
- CAN/CSA-O80.2, "Processing and Treatment,"
- CAN/CSA-O80.3, "Preservative Formulations," or
- CSA O80.15, "Preservative Treatment of Wood for Building Foundation Systems, Basements, and Crawl Spaces by Pressure Processes."
- Where timber has been treated as required in Sentence (1), it shall be cared for as provided in AWPA M4, "Care of Preservative-Treated Wood Products," as revised by Clause 6 of CAN/CSA-O80 Series, "Wood Preservation."
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| 4.2.3.3. |
Plain and Reinforced Masonry
- Plain or reinforced masonry used in foundations or in support of soil or rock shall conform with the requirements of Subsection 4.3.2.
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| 4.2.3.4. |
Prevention of Deterioration of Masonry
- Where plain or reinforced masonry in foundations or in structures supporting soil or rock may be subject to conditions conducive to deterioration, protection shall be provided to prevent such deterioration.
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| 4.2.3.5. |
Concrete
- Plain, reinforced or pre-stressed concrete used in foundations or in support of soil or rock shall conform with the requirements of Subsection 4.3.3.
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| 4.2.3.6. |
Protection Against Chemical Attack
- Where concrete in foundations may be subject to chemical attack, it shall be treated in conformance with the requirements in CSA A23.1, "Concrete Materials and Methods of Concrete Construction."
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| 4.2.3.7. |
Steel
- Steel used in foundations or in support of soil or rock shall conform with the appropriate requirements of Subsection 4.3.3. or 4.3.4., unless otherwise specified in this Section.
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| 4.2.3.8. |
Steel Piles
- Where steel piles are used in deep foundations and act as permanent load-carrying members, the steel shall conform with one of the following standards:
- ASTM A 252, "Welded and Seamless Steel Pipe Piles,"
- ASTM A 283/A 283M, "Low and Intermediate Tensile Strength Carbon Steel Plates,"
- ASTM A 1008/A 1008M, "Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable,"
- ASTM A 1011/A 1011M, "Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength," or
- CSA G40.21, "Structural Quality Steel."
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| 4.2.3.9. |
High Strength Steel Tendons
- Where high strength steel is used for tendons in anchor systems used for the permanent support of a foundation or in the erection of temporary support of soil or rock adjacent to an excavation, it shall conform with the requirements of CSA A23.1, "Concrete Materials and Methods of Concrete Construction."
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| 4.2.3.10. |
Corrosion of Steel
- Where conditions are corrosive to steel, adequate protection of exposed steel shall be provided. (See Article 1.2.1.1. of Division A for use of other materials.)
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