When the pier foundation can not bury?
If in previous article we looked at a rather complex process of building a pier foundation raft, in this article we will talk about situations where you can without any extra effort to equip not flush columnar foundation.
So, when the pier foundation can not bury?
Provided that the step of supporting pillars of your foundation will be located within the range of 1.5-2.5 meters, you can do without his burial in the following cases:
- on your site or nepuchinisty slabopuchinisty ground, that is, it is not heavily saturated with moisture, which expands and pushes the concrete elements in the winter.
- you are going to build a house on rock or krupnokamennom basis.
- when replacing the heaving soils on sandy-dumping pillow.
The main feature of an unburied foundation that blocks / poles lie on the ground, sometimes - on a small
(10-15 cm) sand cushion.
That can be used for the erection of pillars?
- Concrete - the undisputed leader in building mixtures;
- Rubble concrete - concrete, "enriched" with large stones;
- Peskobeton - rapidly gaining strength material;
- Foundation blocks (usually builders selected dimensions 20:20:40);
- Brick (most importantly - do not buy the silicate or ceramic bricks, because they have low resistance to frost).
Important!In rare cases (e.g., when building foundation bath) supporting pillars can be made of wood - oak, pine 20-30 -th diameter, impregnated with lubricating oil, bitumen or tar birch. To increase the strength of a tree structure is immersed in a small layer of concrete.