How dense is once it's set up? It looks like something a friend used to patch a hole in his basement floor, although it expands way more. As long as the hole is filled, and the product is non-permeable I can't see any reason this wouldn't work, although the weight of concrete adds an anchoring factor which this product wouldn't have. I'd like to try and pull one of those posts to see how sturdy it is before I get all gung ho.
|