[CCMC 13059-R] CCMC Canadian code compliance evaluation
From: National Research Council Canada
Techno Metal Post™
|Compliance:||NBC 2015, OBC|
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It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as an auger-installed steel pile foundation system in accordance with the conditions and limitations stated in this evaluation, complies with the following code:
National Building Code of Canada 2015
|ID||Code provision||Solution type|
|04-02-03-08-01-e-00||22.214.171.124.(1)(e) CSA G40.21, "Structural Quality Steel."||Acceptable|
|04-02-03-10-00-0-00||126.96.36.199.(1) Where conditions are corrosive to steel, ...||Acceptable|
|04-02-04-01-00-0-00||188.8.131.52.(1) The design of foundations, excavations a ...||Acceptable|
|09-04-01-01-01-c-01||184.108.40.206.(1)(c)(i) Part 9, or||Acceptable|
Ontario Building Code
Ruling No. 03-06-95 (13059-R) authorizing the use of this product in Ontario, subject to the terms and conditions contained in the Ruling, was made by the Minister of Municipal Affairs and Housing on 2003-06-06 (revised 2018-03-07) pursuant to s.29 of the Building Code Act, 1992 (see Ruling for terms and conditions). This Ruling is subject to periodic revisions and updates.
The above opinion(s) is/are based on the evaluation by the CCMC of technical evidence provided by the evaluation holder, and is bound by the stated conditions and limitations. For the benefit of the user, a summary of the technical information that forms the basis of this evaluation has been included.
Techno Metal Post™
Techno Pieux™/Techno Metal Post™ is an earth anchor constructed of single, double or triple helical-shaped circular steel blades welded to a steel shaft.
The steel blades conform to CAN/CSA-G40.21-M98 and are available in diameters of 150 mm to 600 mm. They are constructed as a helix with a carefully controlled pitch. The diameter and number of blades are chosen based on the bearing capacity of the soil and the load that the auger-installed steel pile is designed to support.
The steel shaft conforms to ASTM A 500/A 500M-10a, grade C and is available in diameters of 47.6 mm, 60.3 mm and 88.9 mm, with a wall thickness of 3.7 mm, 3.9 mm, 5.5 mm or 7.6 mm, respectively. The shaft is covered with a ribbed polyethylene pipe, which acts as a frost sleeve to isolate the pile from being jacked up by annual frost heave in the surrounding soil. The central shaft is used to transmit torque during installation and to transfer axial loads to the helical blades.
The foundation system comes with various accessories, such as support plates to adapt it to the building structure, extension shafts and connectors, which conform to CAN/CSA-G40.21-M98.
The piles are screwed into the ground using mechanized equipment. Sufficient downward pressure (crowd) is applied to advance the anchor one pitch distance per revolution until the applied torque attains a specified value. Extensions are added to the central shaft as needed. The applied loads may be tensile (uplift) or compressive (bearing). The piles are rapidly installed in a variety of soil formations and are immediately ready for loading after installation.
Figure 1 shows a typical steel pile with a single helix.
This evaluation is valid only for products produced at the following plant:
|Product name||Manufacturing plant|
|Thetford Mines, QC, CA|
|Techno Metal Post™||Product evaluated by the CCMC|
Product evaluated by the CCMC Indicates that the product from this manufacturing facility has been evaluated by the CCMC
Conditions and limitations
The CCMC’s compliance opinion is bound by this product being used in accordance with the conditions and limitations set out below.
- The product under this evaluation is intended to be used as a foundation system to support the following types of construction:
- Single storey residential buildings within the scope of Part 9 of NBC 2015;
- Accessory buildings such as sheds, gazebos, sunrooms, carports, and decks/porches within the scope of Part 9 of NBC 2015.
Other applications are beyond the scope of this evaluation, wherein a professional engineer skilled in such design and licensed to practice under the appropriate provincial or territorial legislation must determine the pile capacity and other design parameters.
- Techno Pieux™/Techno Metal Post™ may be used as a foundation system to support various constructions, provided that it is installed according to the manufacturer’s current instructions and within the scope of this Evaluation Report. A certificate attesting to the conformity of the installation and the allowable loads for the piles must be provided.
- Where the Techno Pieux™/Techno Metal Post™ is installed in granular or cohesive soils or silt, there is a direct relationship between the applied torque and the allowable compressive and tensile loads, which are indicated in the Allowable compressive and tensile loads for the Techno Pieux™/Techno Metal Post™ auger-installed pile in granular or cohesive soils or silt table.
- Where the allowable compressive and tensile loads exceed those stated in the Allowable compressive and tensile loads for the Techno Pieux™/Techno Metal Post™ auger-installed pile in granular or cohesive soils or silt table, site specific engineering by a professional engineer skilled in such design and licensed to practice under the appropriate provincial or territorial legislation of the project site is required to determine the pile capacity and other design parameters.
- In all cases, a registered professional engineer skilled in such design and licensed to practise under the appropriate provincial or territorial legislation must determine the number and spacing of the auger-installed steel piles required to carry all the loads.
- Where conditions (soil and environmental) are determined to be corrosive to steel, protection of the steel shall be provided. The determination of the presence of corrosive conditions and the specification of the corrosion protection shall be carried out by a registered professional engineer licensed to practise under the appropriate provincial or territorial legislation. If the determination of the presence of corrosive conditions is not completed before installation, the product, including all its accessories, is required to be hot-dipped galvanized, meeting the requirements of CAN/CSA-G164 (ASTM A123/A123M-17) with a minimum thickness of 610 g/m2, or another method that provides an equivalent level of protection and abrasion resistance deemed acceptable by the CCMC.
- The installer of the Techno Pieux™/Techno Metal Post™ auger-installed steel piles must be certified by Techno Pieux Inc. Using approved equipment, the installer must follow the manufacturer’s installation instructions and the uses and limitations specified in this Report. Each installer must carry a certification card bearing their signature and photograph.
- Each Techno Pieux™/Techno Metal Post™ auger-installed steel pile must be identified with a label containing the following information:
- manufacturer’s identification; and
- the phrase “CCMC 13059-R.”
This evaluation is based on demonstrated conformance with the following criteria:
|Criteria number||Criteria name|
|CCMC-TG-316615.13-15A||CCMC Technical Guide for Augered-Installed Steel Piles|
Below is the NBC 2015 compliance data for Techno Pieux™/Techno Metal Post™ on which the CCMC based its opinion in the Code compliance opinion.
Techno Pieux™/Techno Metal Post™ auger-installed steel piles were tested to:
- ASTM D 1143/D 1143M-07, “Standard Test Methods for Deep Foundations Under Static Axial Compressive Load,” and
- ASTM D 3689-07, “Standard Test Methods for Deep Foundations Under Static Axial Tensile Load.”
A total of 66 tests were conducted at 12 different sites in Canada, the United States and France on a variety of granular, silt-based and cohesive soils. Of the 66 tests performed, 37 were in compression and 29 in tension. The intent of the testing was to determine a correlation between the torque applied during installation and the allowable loads.
The test results indicated a factor of safety greater than 2 for 61/66 of the cases. This safety factor was obtained for both the compressive and tensile loads and for all three types of soil. For the other 5 tests (5/66), the factor of safety was 1.8 to 1.9, which was deemed acceptable because the displacement associated with these allowable loads was minimal (1 mm to 8 mm).
|Applied torque||Allowable loads|
|678||500||10.0||2 250||5.0||1 125|
|1 017||750||15.0||3 375||7.5||1 688|
|1 356||1 000||20.0||4 500||10.0||2 250|
|1 695||1 250||25.0||5 625||12.5||2 813|
|2 034||1 500||30.0||6 750||15.0||3 375|
|2 373||1 750||35.0||7 875||17.5||3 938|
|2 712||2 000||40.0||9 000||20.0||4 500|
|3 051||2 250||45.0||10 125||22.5||5 063|
|3 390||2 500||50.0||11 250||25.0||5 625|
|3 729||2 750||55.0||12 375||27.5||6 188|
|4 067||3 000||60.0||13 500||30.0||6 750|
|4 406||3 250||65.1||14 625||32.5||7 313|
|4 745||3 500||70.1||15 750||35.0||7 875|
|5 084||3 750||75.1||16 875||37.5||8 438|
|5 423||4 000||80.1||18 000||40.0||9 000|
|5 762||4 250||85.1||19 125||42.5||9 563|
|6 101||4 500||90.1||20 250||45.0||10 125|
|6 440||4 750||95.1||21 375||47.5||10 688|
|6 779||5 000||100.1||22 500||50.0||11 250|
Use of Canadian Construction Materials Centre (CCMC) assessments
This assessment must be read in the context of the entire CCMC Registry of Product Assessments, any applicable building code or by-law requirements, and/or any other regulatory requirements (for example, the Canada Consumer Product Safety Act, the Canadian Environmental Protection Act, etc.).
It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.
The National Research Council of Canada (NRC) has evaluated only the characteristics of the specific product described herein. The information and opinions in this evaluation are directed to those who have the appropriate degree of experience to use and apply its contents (such as authorities having jurisdiction, design professionals and specifiers). This evaluation is valid when the product is used as part of permitted construction, respecting all conditions and limitations stated in the evaluation, and in accordance with applicable building codes and by-laws.
This evaluation is provided without representation, warranty or guarantee of any kind, expressed or implied, and the NRC provides no endorsement for any evaluated product. The NRC accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained herein or the use of any evaluated product. The NRC is not undertaking to render professional or other services on behalf of any person or entity nor to perform any duty owed by any person or entity to another person or entity.
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© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2023
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