[CCMC 13353-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

In most jurisdictions this document is sufficient evidence for approval by Canadian authorities.

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Code compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as an auger-installed steel pile in a foundation system in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2015

Code provision Solution type
4.2.3.10.(1) Where conditions are corrosive to steel, ...Acceptable
4.2.3.8.(1)(e) CSA G40.21, "Structural Quality Steel."Acceptable
4.2.4.1.(1) The design of foundations, excavations a ...Acceptable
9.4.1.1.(1)(c)(i) Part 9, orAcceptable

Ontario Building Code

Ruling No. 15-02-323 (13353-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 2015-01-05 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 is 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.

Product information

Product name:

Pieux Xtreme

Product description

The product is an earth anchor constructed of helical-shaped circular steel blades that are welded to a steel shaft. The blades are constructed as a helix with a carefully controlled pitch.

The product is available in blade diameters of 175 mm with a thickness of 6.3 mm, and in diameters of 200 mm, 250 mm and 300 mm with a thickness of 8.0 mm. The anchors come with a single helical blade. The diameter of the blade is chosen based on the bearing capacity of the soil and the load that the auger-installed steel pile is designed to support. The central shaft is used to transmit torque during installation and to transfer axial loads to the helical blades. The diameter of the shaft is either 48 mm or 60 mm with a wall thickness of 4.8 mm. The foundation system comes with other accessories such as support plates to adapt to the building structure, extension shafts and connectors.

The steel shaft, blades and accessories of the product conform to CSA-G40.21-04(R2009), “General Requirements for Rolled or Welded Structural Quality Steel/Structural Quality Steel.” They also have a galvanic coating of 610 g/m2 that meets the requirements of CAN/CSAG164-M92(R2003), “Hot Dip Galvanizing of Irregularly Shaped Articles.”

The figure below shows a typical auger installed steel pile with a single helical blade.

Illustration of Pieux Xtreme.
Figure 1. Pieux Xtreme
  1. Shaft
  2. Helical blade

Manufacturing plant

This certification is valid only for products produced at the following plant:

  • Danville, Québec, Canada

  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 geotechnical 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.

  • The product may be used as part of a foundation system to support various structures and must be installed according to the manufacturer’s current instructions.
  • The structural application of this product must be in strict accordance with the design analysis as prepared for Pro Pieux Inc. by Labo S.M. Inc. and included in Report No. 02465 (N/Ref. F098278-001), February 2010, from which the table under Technical information is reproduced.
  • When the product is installed in granular soil or silt, there is a direct relationship between the applied torque and the allowable compressive load. The table under Technical information indicates the allowable compressive loads as a function of the applied torque.
  • When the auger-installed steel pile is installed in a cohesive soil such as clay, the relationship between the applied torque and the allowable compressive load is not predictable. As a result, the allowable compressive loads have to be confirmed by on-site load tests. These load tests are also required if the allowable loads need to be greater than those stated in the table under Technical information. The tests must be conducted under the direct supervision of a professional geotechnical engineer skilled in such design and licensed to practise under the appropriate provincial or territorial legislation.
  • 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.
  • The installation of the auger-installed steel pile must be carried out as per the manufacturer’s instructions. The anchors must be screwed into the ground using mechanized equipment. The anchor must be rotated into the ground with sufficient applied downward pressure (crowd) to advance the anchor one pitch distance per revolution. The anchor must be advanced until the applied torque value attains a specified value. Extensions must be added to the central shaft as needed. The applied loads may be tensile (uplift), or compressive (bearing). Helical anchors are rapidly installed in a wide variety of soil formations using a variety of readily available equipment. They are immediately ready for loading after installation.
  • 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.
  • To be permitted to install Pieux Xtreme auger-installed steel piles, the installer must be certified by Pieux Xtreme Foundation Inc. Using approved equipment, the installer must follow the manufacturer’s installation instructions and heed the conditions and limitations specified in this Report. Each installer must carry a certification card with their signature and photograph.
  • Each Pieux Xtreme auger-installed steel pile must be identified with a label that contains the manufacturer’s identification and the phrase “CCMC 13353-R.”

  Technical information

This evaluation is based on demonstrated conformance with the following criteria:

Evaluation requirements
Criteria number Criteria name
CCMC-TG-316216.01-15ACCMC Technical Guide for Augered-Installed Steel Piles

Pieux Xtreme auger-installed steel piles were tested in accordance with the requirements of:

  • ASTM D 1143/D 1143M-07, “Standard Test Methods for Deep Foundations Under Static Axial Compressive Load,” and
  • ASTM D 3689/D 3689-08, “Standard Test Methods for Deep Foundations Under Static Axial Tensile Load.”

A series of 17 tests were conducted on two different sites, one with granular soil and the other cohesive soil. The intent of the testing was to determine a correlation between the torque applied during installation and the allowable compressive and tensile loads. The results showed that in granular soils there was a correlation between the torque applied during installation and the allowable load. For the compressive loads noted in the table below, the factor of safety varied from 2.0 to 3.2. For the tensile loads, the factor of safety varied from 1.8 to 3.2.

Table 1. Allowable compressive loads and tensile loadsTable footnote footnote (1) for the Pieux Xtreme auger-installed pile in granular soil Table footnote footnote (2) or siltTable footnote footnote (3)
Applied torque Allowable loads
Compression Tension
Nm lbf kN lb kN lb
678 500 12 2 700 5 1 125
1 017 750 16 3 600 8 1 800
1 356 1 000 22 4 950 10 2 250
1 695 1 250 26 5 850 13 2 925
2 034 1 500 30 6 750 15 3 375
2 373 1 750 34 7 650 18 4 050
2 712 2 000 38 8 550 20 4 500
3 051 2 250 42 9 450 22 4 950
3 390 2 500 48 10 800 25 5 625
3 728 2 750 50 11 250 28 6 300
4 067 3 000 54 12 150 30 6 750
4 406 3 250 58 13 050 32 7 200
4 745 3 500 62 13 950 35 7 875
5 084 3 750 66 14 850 38 8 550
5 424 4 000 70 15 750 40 9 000

 

Return to footnote referrer

 

Administrative information

Disclaimer

This evaluation is issued by the Canadian Construction Materials Centre (CCMC), a part of the Construction Research Centre at the National Research Council of Canada (NRC). The evaluation must be read in the context of the entire CCMC Registry of Product Assessments and the legislated applicable building code in effect.

The CCMC was established in 1988 on behalf of the applicable regulator (i.e., the provinces and territories) to ensure—through assessment—conformity of alternative and acceptable solutions to regional building codes as determined by the local authority having jurisdiction (AHJ) as part of the issuance of a building permit.

It is the responsibility of the local AHJs, design professionals, and specifiers to confirm that the evaluation is current and has not been withdrawn or superseded by a later issue. Please refer to the website or contact:

Canadian Construction Materials Centre
Construction Research Centre
National Research Council of Canada
1200 Montreal Road
Ottawa, Ontario, K1A 0R6
Telephone: 613-993-6189
Fax: 613-952-0268

The NRC has evaluated the material, product, system or service described herein only for those characteristics stated 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 (i.e., AHJs, design professionals and specifiers). This evaluation is only valid when the product is installed in strict compliance with the stated conditions and limitations of evaluation and the applicable local building code. In circumstances where no applicable local building permit is issued and that no confirmation of compliance ‘for use in the intended field application’ is undertaken, this evaluation is null and void in all respects. This evaluation is provided without representation, warranty, or guarantee of any kind, expressed, or implied, and the NRC provides no endorsement for any evaluated material, product, system or service described herein. The NRC accepts no responsibility whatsoever arising in any way from any and all use and reliance on the information contained in this evaluation with respect to its compliance to the referenced code(s) and standard(s). 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.

Language

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In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

© 2021 Her Majesty the Queen in Right of Canada, as represented by the National Research Council of Canada.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the CCMC.

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