After smoothing the wall, would casting against it still create bond, or do we think the secant concrete is weak enough to not be an issue? and my chamber can shrink vertically without restraint? DO people usually use a liner material when casting against a secant wall?
I have a postage stamp of a construction site, where we are placing a 7m deep chamber. We have used secant shoring walls with the intent of casting against the shoring. During my site visit i noted hat the shaving of the secant walls is very rough leaving some hollows and gaps 150 to 200mm...
