SI20880A - Stabilisation and waterproofing of wall foundation - Google Patents

Abstract

The invention stabilization and waterproofing of the foundation part of a wall (2) is solving the technical problem of weakened and excessively moisture-saturated walls (1). Concreting close to the foundation part of the wall (2) is foreseen at first to produce a two-side shell (7) at both sides and up to one third of the width under the foundation. Then the injection into the surrounded foundation part of the wall (2) and under the foundation wall (10) is foreseen by using a water repellent silicone penetrator (11) to improve the bearing capacity of the ground under the foundation part of the wall (2) between the bearing layer of gravel (6) and the foundation part of the wall (2). In this way, the hydrophobous penetrator injected through a penetration pipe (11) fills all the cracks and pores and hydrophobizes the foundation part of the wall (2) against moisture absorption from groundwater in the soil (5) and from the layer of gravel (6).

Description

The subject is the rehabilitation of the main part of the building wall by stabilizing and waterproofing the basic part of the wall, which was built without first deepening and foundation. The described wall is built on existing terrain as pebbles or on padded stone females to the ground without waterproofing.

The invention belongs to the international patent classification in E 04 B.

A technical problem solved by the invention is a multi-stage process with specific new technology, such as finishing additional technological properties of individual building materials in the structure and thus stabilizing the structure of the foundation part of the wall as a whole.

There are many known solutions for foundation remediation. The oldest known solution is patent FR - A - 2321574; 18-03-77. According to this document, horizontal waterproofing of the wall is provided only above the existing depth foundation of the building, so it is not complete, it does not solve the wall without foundation.

Other known solutions also do not solve the remediation - stabilization of the foundation wall of a building without foundation, such as FR-A-2465038, DE-A-3231351, VVO-A-8500395 and DE-A-3434097.

A common feature of all these solutions is the horizontal membrane, which prevents the capillary moistening of the underground walls. The variants are mainly in various technological solutions for the implementation of a watertight layer. The problem that remains unsolved is, first and foremost, the relatively high complexity of stabilizing an already heavily decayed foundation wall without a true foundation, curing the material of the wall, as well as water repellent penetration with silicone to a corresponding static result.

The most common solution to the problem of stabilization of walls without foundation was the extension of the missing foundation to the depth of the earth. In the case of poorly overburdened foundations that act as transducers of capillary moisture from groundwater to walls, the known technological procedures have been carried out so far by cutting or breaking walls and inserting waterproofing inserts as horizontal waterproofing.

In the area of building remediation for missing foundations, most often in cultural and historic buildings that are several centuries old but culturally historically valuable, there have been no rational technological solutions so far. Deepening by replacing the missing foundations meant extremely costly implementations compared to the author's proposed new technology of 1:10.

According to the invention, the problem is solved by concreting the existing decaying foundation part of the wall, injecting it with mineral silicate cement-swollen mortar and penetrating with water-repellent silicone into the concreted volume and below the foundation. The invention will be described in the embodiment and in the drawings showing:

Fig.1 Existing building wall Fig.2 Concrete foundation wall of the building connected to the anchor.

Fig.3 Injected foundation wall of a building.

Fig.4 Penetration water repellent injection wall of the building

Stabilized, concreted, injected, watertight penetrating technologically technological process is carried out on the damp wall of building 1, on the basic part of wall 2, below the level of the terrain, outside the building 3, inside under pressure 4, in the ground 5 and up to the gravel 6.

By excavating at the base of the wall and below one-third of the width, the concrete reinforced concrete armor 7 is anchored, which is anchored through the wall through the thickness of the wall with a horizontal steel link 8 at appropriate intervals.

For versatile stability and compactness of decaying building materials, the author proposes injection of 9 with mineral swelling cement silicate injection mortar under appropriate pressure, up to 6 barr. An expansive swellable cement silicate injection mortar fills all the softened spots in the base part of wall 2 as well as under the injection part 10 of the base part of wall 2 to the solid backing layer of the gravel 6.

The complete filling of the basic part of the wall of smaller pores and cracks is suggested by the author with silicone penetrators 11, which are vapor permeable and waterproof the mineral building materials in wall 1 and the fundamental part of wall 2.

Klanecek Ivan

Claims (1)

PATENT APPLICATION The process of stabilization and waterproofing of the base part of the wall without foundation, characterized in that it is "aerated" with reinforced concrete as double-skinned armor (7), which is connected through the thickness of the wall with a steel bond (8), injection (9) of the concrete-covered foundation one or double-sided to stabilize, connect the reinforced concrete armor (7) and the steel horizontal bond (8) into one unit, and by pinching the base part of the wall (2) to provide the wall construction (1) high stability, water-repellent penetration (11) with silicone in decaying existing foundation wall (2) of any mineral material, filling all cracks, cavities and pores in the foundation wall (2), thus protecting the foundation wall (2) against excessive absorption of groundwater in the soil (5) and layer gravel (6).