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Questions on Piering: Hollow Pier Tubes

1. I see that your push pier tubes are hollow, why don't they continue to sink into the ground after you install them? Why not fill them with concrete to make them stronger?

The push pier tubes that we use are the very latest in foundation repair technology and have been rigorously tested in our soil conditions.  These pier tubes will fill with several feet of soil during installation, creating a soil plug. The amount of soil will depend upon the  type of soil being penetrated.  For this reason, placing concrete within the pier will not completely fill the shaft to the bottom.

Filling with concrete could, in fact, make the piers stronger but there are a few reasons that it is not usually done in our soil conditions.  The first reason is that the system experiences it's highest load while driving the piers during which the concrete could not be present anyway.  There are a few non-typical applications where concrete filling might be appropriate, but they are rare for our soil conditions and usually involve piers that are partially exposed, otherwise, the added cost of the concrete filling process is not justified.

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Foundation Repair and Basement Wateproofing in greater Colorado Springs. See Full Service Area