Pack Bentonite Between Basement Floor And Foundation Wall

This helps keep them properly aligned.

Pack bentonite between basement floor and foundation wall.

The high bonding bentonite clay expands into the structure s cracks and fissures forming a watertight membrane from below grade to the structure s footer. Our exclusive bentonite injection service has allowed our company to put a warranty on basement walls below grade for more than 30 years. Bentonite applied to foundation walls can t prevent water from entering your basement along the most common leak area. Like you i have never heard of the use of bentonite on the interior side of a basement wall.

One of the most common places to find water in a residential basement is in a puddle right next to the wall. If there is no drain tile outside the foundation fixing the crack may develop into a frustrating experience. The crack between the basement slab floor and the basement wall. During wet weather high hydrostatic pressure can easily force water up through cracks in the basement floor and along the floor to wall joint.

That is reason enough at least for me not to try it. When your walls have cured the basement floor itself is then poured. After your foundation footings are built your basement walls are poured so that they slot into a keyway. This leaves a small gap between the floor and the walls known as the cove joint.

When the slab or basement floor is directly adjoining the stem foundation wall sitting upon the footing it is subject to the same movement that the wall is. If the slab is touching the stem walls. This doesn t happen because the wall itself is leaking water or because the basement floor has low points around the edges. The corner leaks along floor wall joint due to exterior cracks and some other openings between top of wall and bricks.

The process of bentonite injection has been around commercially for more than 80 years and was a prime method for sealing earthen dams and maintaining cofferdams for temporary water containment. Sep 30 2015 by matthew stock. Leaking cracks in basement walls are a fairly common problem. For example almost all basement waterproofing companies will use sodium bentonite to seal a seeping wall crack that is inaccessible from inside the basement and therefore cannot be injected with expanding polyurethane.

There are standard measures available. Don t seal the gap between basement wall and floor to keep out water. A simple and effective method of sealing off the leak is with the use of bentonite.