Defects in the foundation and ways to address them

The foundation could lose strength for several reasons: - age - substandard materials; -0 poor quality of construction works. The main defect of foundations - the uneven subsidence. Outwardly, this is reflected in the appearance of cracks of different shapes and different directions as the very foundation, and on the walls of the house, various distortions of the house. Depending on the design of the house and type of foundation, the reasons may be: 1. Incorrectly selected the depth of laying the foundation. Correct this defect is very difficult and sometimes impossible to do. If sagging slightly, you can make bank filling the soil around the perimeter of the foundation, thereby artificially increase the depth of burial. 2. The rise of groundwater is difficult to predict, but the fix is ??possible by arranging a drainage system or to put such a plant variety, which is effectively taken away the moisture from the soil. Drainage system is best to lay the foundation at the same time. 3. Uneven loading on the foundation of the building. For example, when the main house is much heavier than the veranda. If the house is already built, to avoid further deformation, it is necessary to divide the foundations of the porch and house. To do this, lay between the foundation board, impregnated with bitumen. 4. Increased load on the foundation due to add the top floor: - due to an incorrect assessment of opportunities existing foundation. Addressing this deficiency will cost the owner of the house in a decent amount and this is when, if circumstances permit a strengthening of the foundation by increasing the bearing area of ??the basement - incorrectly estimated carrying capacity of the soil, you can enlarge it by pouring the soil under the foundation of "cement milk". 5. Lack of durability of materials for the foundation, or loss of strength over time. For brick foundations, composed by lime mortar, with time characteristic of debonding of the solution with a brick (getting inside the basement moisture, freezing, the load on the foundation). Needed major repairs, replacement of a new one. To do this, you need to unload the old foundation by transferring weight at home on temporary supports. Temporary supports are wooden beams. They have next to the old foundation and through the steel beams carry the load at home on wooden beams.