Method of sealing and heat insulation recovery for interpanel joints


FIELD: construction.

SUBSTANCE: invention concerns building construction, maintenance and repair. Method of sealing and heat insulation recovery for interpanel joints involves joint filling with construction foam and sealant layer application onto external surface of joint seal and panel surface areas adjoining the joint. Through holes are drilled in joint seal along the length of joint at the pitch under 100 cm. Cavities in seal are filled with construction foam is performed by construction foam injection over at least one hole till the foam shows out of neighbouring holes. Each hole is stopped by plug to form external surface of joint seal under sealant layer.

EFFECT: reduced terms of works on heat insulation and sealing recovery of interpanel joints.

5 dwg

 

The invention relates to the field of construction, operation, and repair of buildings, which are characterized by significant temperature drop at the wall from -30 to +30°C, and can be used to restore the operating characteristics of the buildings, including their insulation and anticorrosion properties. In particular, the method of repair or reconstruction sealing of seams between panels and restore the protective properties of the wall.

Known method of sealing the joints of the building elements, including the processing of joined surfaces of the silicone composition, filling the cavity of the junction of the polymer mixture, and drawing on the resulting surface after curing polymer mixture water-repellent organosilicon composition (SU # 1331974, 23.08.1987).

In the known solution of the organosilicon composition is prepared on the basis of the solvent and is applied by spray or brush on a joined surface in advance, and on the surface after curing polymer composition. To fill the seam uses a polymer mixture in which the polymer binder is used, the emulsion latex.

The disadvantage of this method is that the resulting seams do not have sufficient durability in terms of increasing the military vibration, when there is a relative oscillation of the wall panels. In addition, a well-known technology of repair and recovery requires time-consuming and does not allow you to make repairs in the cold period.

A known method of recovering thermal insulation and corrosion protection of buildings and structures, including mechanical surface cleaning of walls, spraying a layer of polyurethane foam with its subsequent foaming and curing, and subsequent staining of the wall using spray (RU # 2176705, 10.06.2001). In the known solution coating layer of polyurethane is carried out in the absence of sources of moisture.

The disadvantage of this known solution is the complexity of creating a protective layer in the natural conditions of the temperate climate zone, because the known method has specific requirements for humidity. The method does not provide any operations prior to the preparation and sealing of seams between panels. However, such operations are considered necessary, since the heterogeneity of the materials used for sealing the bulkhead joints and create a protective layer, and also in cases, when a protective layer is applied without prior repair of the bulkhead joints, possible fracture of materials, sealing bulkhead seams that the ocher is ü can lead to violation of the integrity of the protective layer of the wall and its subsequent accelerated destruction.

There is a method of repair of seams between panels and create protection wall constructions including mechanical cleaning of joints of wall structures, degreasing surfaces of the panels, filling joints with foam that has a high vibration, causing one side of the wall after polymerization foam on its surface and adjacent to the seam portion of the surfaces of the panels two-component polyurethane mastic strip, whose width is not less than 30 cm, to ensure the strength of the seam, causing over strips of mastic after its polymerization by spraying the entire surface of a polyurethane composition with a minimum thickness of 15 mm, the coating on the other side of the wall along its entire surface after polymerization mounting foam two component polyurethane mastic coating not less than two layers on top of the polyurethane mastic and/or a polyurethane composition a flame-retardant silicone composition in the thickness of 200-800 μm (RU # 2226234, AS 1/40, publ. 27.03.2004).

This decision was made as a prototype for the claimed invention.

In this way mechanical cleaning of use electroporator and/or high-pressure apparatus, filled water with acidic solutions and/or biologically active detergents, providing during this removal operation is dust, lagging paint and a drop of cement.

The disadvantage of this method lies in the complexity of the treatment works and sealing, requiring time-consuming.

The objective of the invention is to create a way in a single technological cycle to repair the bulkhead joints and restore the tightness and thermal insulation properties of the joints without destroying the cement covering the seam.

Achievable technical result is to shorten the work on restoration of insulation and air tightness of seams between panels in newly-built buildings.

This technical result is achieved in that in the method of restoring the sealing and insulating bulkhead joints, including filling the joints with foam and applied to the outer surface of the sealing seam and adjacent to the seam portion of the surfaces of the panels sealant layer, the length of the seam in the sealing of drilled through holes in increments of not more than 100 cm, filling voids in the seam foam carry out the introduction of the foam through at least one of the holes until the release of this foam through adjacent holes, and then each hole plug stopper for forming the outer surface of the sealing seam under the layer of sealant.

These shall rsnake are essential and interrelated with the formation of a stable set of essential features, sufficient to obtain the desired technical result.

The present invention is illustrated with a specific example of implementation, which, however, is not only possible, but clearly demonstrates the possibility of achieving the desired technical result.

Figure 1 - sectional view of the bulkhead seam to recovery.

figure 2 - the operation of drilling the holes in the sealing seam;

figure 3 - operation of voids seam foam;

figure 4 - the operation of plugging holes;

figure 5 is an operation of applying a sealant to the outer surface of the sealing seam.

According to the present invention discusses a method for rapid and cost-effective restoration sealing and insulation of seams between panels without destroying the sealing these seams.

Repair of seams between panels are manufactured in two cases: leakage and freezing. Leaks are the result of violation of the outer protective layer of sealant or cement mortar (cracks, damage, partial damage), and freezing occur due to the absence or lack of insulation in the bulkhead seam. The seam can freeze and if there is a quality of the external insulating layer. The way with regard to maintenance of such seams (closed by cement).

The majority of seams between panels in prefabricated houses "Sovetsk is th" period building arranged as follows: first, in the seam between the panels 1 were placed insulation 2 (Gernet, tow, hemp rope, Styrofoam, garbage and so on), and then the cement slurry, forming a sealing seam 3 (figure 1). Over time the insulation was shrunk, collapsed, fell (fell down) and the seam has started to freeze. Recently used for sealing primaryservice sealant. Practice shows that sealing is not practically destroyed by the impact of the external environment and the time and apparently the bulkhead seam looks quite healthy.

According to the present method is proposed to recover the sealing and insulation of seams between panels without breaking them termination by drilling along the length of the seam in its sealing through holes in increments of not more than 100 cm and voids in the seam foam by the introduction of foam through at least one of the holes until the release of this foam through adjacent holes. Then each hole plug stopper for forming the outer surface of the sealing seam under the layer of sealant

In practice, this looks as follows.

a) In the suture hole 4 in increments of 30-100 cm drilled holes (diameter and length of the drill must match the outlet tube 5 cylinder foam - D = 10 mm, L = 25 cm) (figure 2). During the drilling of the holes is determined by the presence of voids (voids Bur "fails").

b) Through the holes injected foam manufactured using the x industry pananandata balloon type with the working of the tubular spout (3) (monitoring the filling is via the adjacent openings, while they do not appear foam).

The foam has a high vibration and is polymerized in the presence of moisture. Grouting foam provides sealing volume bulkhead space. In the process of expansion joints are to be filled in the side of least resistance. Can be used foam "Bau Super Max"manufactured by the German concern BAUMAX AG - component foam in aerosol cans containing the working gas propane-butane mixture, harmless to the ozone layer of the atmosphere. Polymerization of the composition is influenced by humidity, this creates a strong and flexible sealed seam, the corresponding solid rubber. Application temperature foam "Bau Super Max" is in the range from 0 to +40°C. the foam can be applied at low temperatures.

C) the Hole is sealed by a stopper 6 (4) (a piece of bilateral, wooden copic etc)

d) Apply sealant 7 on the outer surface of the seal and adjacent to the seam side of the panel 1 (figure 5).

As a sealant may be used waterproofing mastic. Can be used two-component polyurethane mastic "ALOR-2 (TU 5772-063-00151963-99), produced, for example, the Russian company JSC "Stroydetal" (trademark VILATERM®). Mastic put the spar is LEM strip, the thickness of the layer of mastic shall be not less than 1,5-2,0 mm

For additional sealant may be applied polyurethane composition layer to 15 mm are Used in two-component polyurethane foam compositions-17H or foam-N. The composition is applied by spraying using intended for applying such compositions equipment, such as Tom foam, produced by the Russian company OOO "TEPLOTA"providing for simultaneously spraying two components.

After curing of the sealant and polyurethane foam composition of the joint surface can be painted with fire retardant silicone composition. Can be used organosilicon compositions CO-8101 or CO-8102 produced, for example, the Russian company OOO "ALCON". Operating temperature range of these compositions is in the range from -60 to +600°C. Saves time, power, tool for opening the seam and garbage collection is not destroyed wall panel, not destroyed durable coating the seam with cement mortar, which is then covered with a sealant, in addition to extreme strength, gaining a full waterproofing ability, foam, getting in a limited space, expands and fills all of the cracks and voids, reliably protecting the joint from freezing (another way to get the foam to fill in the e emptiness cannot), insulated in this way, the seam will serve at least 12 years.

The present invention is industrially applicable in the construction and reconstruction of buildings.

The invention allows to repair the seam or panel inside the room, without drawing technique, forests, industrial climbers, filling the holes to produce respectively the interior decoration.

The recovery method of sealing and insulating bulkhead joints, including filling the joints with foam and applied to the outer surface of the sealing seam and adjacent to the seam portion of the surfaces of the panels sealant layer, characterized in that the length of the seam in the sealing of drilled through holes in increments of not more than 100 cm, filling voids in the seam foam carry out the introduction of the foam through at least one of the holes until the release of this foam through adjacent holes, and then each hole plug stopper for forming the outer surface of the sealing seam under the layer of sealant.



 

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