Could water freeze under my slab foundation and crack the foundation?

Answer 1

This is possible but unlikely. You must be familiar with the type of foundation construction you have. If you are in a climate where this would be an issue your foundation should have been constructed to prevent it. If groundwater is coming up under your slab it would not likely freeze- you would have a wet basement.
In a cold climate you should have foundation walls on top of footings that are sufficiently under ground to prevent freezing. If you are getting cracks in the foundation walls, it is possible that your footings are not at the proper depth. This would allow water under the footings to freeze, possibly causing upheaval. However, most cracking and fissuring of foundation walls and slabs are due to improper ground preparation at time of construction. Footings and slabs should be placed on UNDISTURBED soil. If area was backfilled, it will settle under and your foundation will follow. This is the most common cause of foundation cracking.

Answer 2

There should be a plastic barrier to keep moisture out to help prevent this. However, depending on where you live, the ground itself freezing can cause a slab foundation to shift. That is why, according to How Stuff Works:

"Slab - The slab is probably the easiest foundation to build. It is a flat concrete pad poured directly on the ground. It takes very little site preparation, very little formwork for the concrete and very little labor to create. It works well on level sites in warmer climates -- it has problems up north because the ground freezes in the winter and this freezing can shift the slab at worst and at least lead to cold floors in the winter. . . In northern climates, the concrete around the edge has to extend deep enough to remain below the frost line in winter. "

Hope this answers your question!

Answer 3

the way is to insulate it before the concrete is poured. Too previous due for that now. you would possibly want to diminish the concrete and insulate the pipe, notwithstanding the go back is nowhere close to truly certainly worth the money and attempt in touch. i does no longer difficulty with operating a sparkling length until eventually you're having a regular subject with that below-slab pipe freezing, or it is a warm water pipe and it in basic terms loses THAT a lot warmth on its way from right here to there. if it truly is the case, then however you do, insulate the bejeebers out of it. upload some layers.

Answer 4

Under the foundation? Not probable. Your foundation should be installed below the frost line. The earth's crust temp is about 55 degrees F. So water under your foundation below the frost line is not going to go low enough for the water to freeze.

DO you live in an area with expansive soil like texas?