Strengthening the foundation of a brick private house, how to strengthen and strengthen the old foundation, photo
Over time, the foundation of almost every building collapses. But if at the same time the house itself is in good technical condition, then it is easier to strengthen the foundation and the basement than to build the whole house from scratch. But before you carry out the strengthening of the foundation of the old house, you should find out the causes of damage to the base, choose a method that strengthens the base and increases its reliability.
Main causes of foundation damage
Strengthening the foundation of the house is required if the foundation is damaged, and this happens for the following reasons :
design completed with errors;
violation of technologies laying the foundation;
the addition of additional extensions adversely affected the structure;
change condition soil , rising groundwater levels due to prolonged precipitation;
conducting building surrounding terrain, laying communications during large-scale earthworks;
the implementation of an unforeseen at design redevelopment structure, and without taking into account the additional load on the foundation;
incorrect drainage device followed by washing out the building;
significant soil vibration from a nearby motorway or blasting;
due to for big weight of the structure of the brick is destroyed its foundation, and therefore the need to strengthen the foundation of a brick house.
Preparatory measures and diagnostics before strengthening foundation
How will the foundation of a private house be strengthened depends on the reasons for the mismatch of the foundation. Therefore, diagnostics is preliminarily carried out, which implies two actions :
installation of beacons on wall cracks;
examination of the foundation in places destruction.
These actions are not difficult to perform, and the information obtained will help determine how to strengthen the base.
Establishment of beacons
Establishment of beacons will allow to find out:
destruction continues or has ceased;
in case continuation, in what direction shrinkage and how fast;
for what reasons cracks appeared.
The process involves installing small cement or plaster trays (markers) on the cracks at the top and bottom. The material must be so fragile that in case of shifting, it could burst. At least two beacons should be used for each crack.
The status of beacons is periodically checked. If the position of the markers has not changed for several weeks, then the sediment has stopped.
When the cracks widen, you can see which part of the house is sinking.
In places where cracks widen, begin to tear off the foundation within its depth, no more. The length of the trench should be small, and the width should be allowed to use a spade inside.
As an insurance, it is necessary to use props to maintain the walls during excavations.
If there is water at the bottom of the trench, water disposal will be required in the form of a drainage system.
Determining the causes and methods of strengthening the base
Having gathered information when observing beacons, as well as while digging the hole, we find out the reasons for the crackling of the foundation and walls. Having determined the reason, one can understand in what way it is better to strengthen the foundation of a private house.
As the base is excavated, its state is assessed. Concrete can fall out due to the violation of technology and its incorrect preparation. Changes in acidity in water can cause corrosion of building materials. In such a case, a drainage system, removal of crumbling parts and strengthening of crumbling solution will be required.
On our site you can find contacts of construction companies that offer the service of designing and repairing the foundation. Directly to communicate with representatives, you can visit the exhibition of houses "Low-rise Country".
If during the digging of the hole there was a void, this means that the soil is being washed out from under the house. Then water will soon appear in the trench, and to correct the situation, a drainage system will be required.
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