you need
  • - extruded polystyrene
  • - sand
Guide
1
excess moisture in the soil under the structure of the freeze and significantly increased with the soil in the volume.These processes generate forces that can push the foundation of the earth.And at thawing the ground becomes pliable and durable.The result is that sags and foundation, with all the consequences for the structure.
2
If there is excess moisture in the soil should provide drainage.Reducing the forces of frost heaving with conventional sand cushions under the base thickness within a hundred millimeters does not solve the problem completely.An effective way to deal with freezing soil as a cause of swelling are insulation works on the perimeter of the building foundations:
Make a notch on the perimeter of the house depth of 400 or 500 mi
llimeters.
3
bottom dredging sand to fill two hundred millimeters and well compacted.
4
with a slight slope away from the wall to fit into the recess extruded polystyrene, and the width of the plate should be less than the depth of freezing soils in the region.This type of insulation material is resistant to the presence of a moist environment without losing its properties.
5
In the area of ​​the corners put a layer thickness and a half times thicker, given the fact that the loss of heat to the outside corners is much higher than in the plane of the wall.
6
insulation on the top layer of sand to fill about 300 millimeters.
7
After completing work with insulation on the perimeter around the house is filled with blind area of ​​concrete.
8
This method of insulation will prevent freezing of the soil and the ejector force heaving soils will not have destructive effects on the foundation, as well as reduce heat cellar.At the same time it creates a constant temperature during the summer in the ground recessed space that prevents condensation.