Postech Screw Piles – Extensively Tested in Winnipeg, MB Clay (Famous Gumbo)

In August of 2014 Postech Screw Piles undertook extensive third-party engineer led and supervised testing in Winnipeg’s famous gumbo / clay soils.

The testing site was not ideal, in fact the soil was downright terrible at ~30kPa, highly moist and plastic soft clay soil. The soil content was 83% clay, 15% silt and 2% sand.

Testing Site Geotech

Some companies might have chosen another test site to ensure their products performed at an optimal level, however, we were thrilled to have found less than desirable soil for our testing. It’s one thing to prove your product works in ideal conditions, it’s another to ensure your data remains true when the soil is less than ideal.

One of our goals was to determine the relationship between the torque applied during installation and the overall capacity of the piles. The result was that torque was a reliable indication of capacity.

Once all the data was crunched by another ISO certified third party engineering firm, it was submitted to the National Research Council for review and consideration in revising the Postech Screw Piles CCMC report 13102-R.

In March 2015 we received our revised CCMC report 13102-R which now includes the data collected, reviewed and verified from the testing conducted in Winnipeg, MB as well as other testing conducted in Eastern Canada.

Postech Screw Piles does not take the position that their shafts and bearing plates offer higher capacity than other screw piles on the market, but they do offer a conservative approach. If you don’t want to leave your clay soils project to chance, be skeptical of the company claiming highest capacities.

Locally tested and nationally approved, Postech Screw Piles Manitoba – 1-855-4-PILING or 204-793-0653. Visit

About screwpiling

We install premium pile foundations which are guaranteed against movement due to frost heaving. Our piles are affordable and professionally installed according to torque, this means you get a perfect install every time! We proudly serve the Greater Winnipeg Area, Steinbach, South-East Manitoba and Interlake regions. Start off on a solid foundation with a Postech Thermal Piles, the most solid and stable piles ever designed.
This entry was posted in Manitoba Soils and Screw Piles, Screw Pile Engineering, Uncategorized and tagged , , , . Bookmark the permalink.

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