DE202007002308U1 - Seal for retro-fitted ground-supported building structure, has parts welded together to form connection impervious to water under pressure - Google Patents

Abstract

The seal (4) comprises several parts that are impervious to water under pressure and inserted into an opening in a wall of the building structure. The inserted parts can be connected together so as to be impervious to water under pressure. The connection is preferably made by welding. The parts may be made of weldable plastics.

Description

The The invention relates to a seal for a subsequent Bringing in a land based Structure, the seal at least from several pressure-water impermeable parts consists, with at least one part in at least one opening at least a wall of the building can be introduced.

Such Seals have been known for many years and are being used for renovation used by existing buildings against non-pressing water in bulk.

One Field of application is the renovation of buildings, such as single-family homes, in their walls Pressured water has penetrated or there is a corresponding risk. This For example, in the past 15 years, the case has been increasingly in areas with a resurgence of groundwater. Especially in areas with a rapid rise in the water table caused by the cessation of industrial subsidence of groundwater, for example in the vicinity of former opencast mining areas, there is a high Need for action to protect the buildings and the health of the Residents of these structures.

When Pressurized water is from the outside pushing on a building Understood water, which acts with compressive forces, in particular with static forces. This pressurized water passes through building materials, construction joints and the finest Riste in the building body, approximately in the area of the foundation or brine, but also the outer walls of the Building, in unwanted Way to other areas of the structure.

All hitherto and currently used methods for producing a later to be introduced in such a construction pressure-water-impermeable seal have weak points which do not guarantee complete pressure water impermeability can or are financially too expensive.

These Problem is known for years, although despite a great need in this regard, in particular caused by the big ones especially financial damages, yet no sufficiently secure solution could be found.

• – Abdichtung mit bitumenhaltigen Materialien oder Injektagen,
• – Gesonderte bituminöse Außenabdichtung,
• – Gesonderte bituminöse Innenabdichtung und
• – Injektagen, umlaufend an allen Außen- und Innenwänden.

Such previously used sealing technologies against pressurized water are, for example:

• - sealing with bituminous materials or injections,
• - Separate bitumen external seal,
• - Separate bituminous inner waterproofing and
• - Injections, circumferential on all outer and inner walls.

• – Injektionsschlauch umlaufend,
• – Anordnung von Quellbändern/-paste und
• – Fugenbleche.

Other previously used sealing details:

• - injection hose revolving,
• - Arrangement of swelling tapes / paste and
• - Joint plates.

All these known measures (alone or in combination) are not cross-building, but provide partial solutions which are not connected to each other pressure-water impermeable.

For example be outdoors the outer wall two-ply waterproofing of polymer bitumen, such as roofing membranes, applied and with a perimeter insulation, for example Styrodur, also over the entire surface bonded.

in the Area of the transition from the outside wall to the wider foundation or brine area is usually a groove of mortar with used a sealant additive.

in the Interior of the outer wall is a subconcrete, strength approx. 10 cm, which is at the level of the upper edge of the foundation ends, and on which a reinforced concrete slab, d = 25 cm, rests. On the reinforced concrete slab is a seal consisting of a bituminous welding track on a bitumen primer over the entire surface bonded and by means of sealing tape on the inside of the outer wall attached.

These Reinforced concrete slab can be made by means of a so-called needling Reinforcing steel anchored to the precast concrete parts of the outer wall. The joint between the reinforced concrete slab and the outer wall is by means of a Combiinject hose, including grouting and venting ends and all Fasteners horizontally locked against rising damp.

The Blocking in the outer wall is made by a seal, which consists of several parts that are not water-tight consists, with at least one part in the gap-shaped opening of the outer wall of the building is introduced. The opening is thereby sectionally, d. H. in about 1.2 m long sections, sawn. Into this opening (sawing gap) then become the strip-shaped ones druckwasserundurchlässigen Parts of the seal, in particular overlapping, inserted and the remaining opening again through mortar or the like. Closed.

The overlapping ends can be as closely as possible one above the other, for example, using wedges, with care, always by the pressurized water to overwinter remaining areas remain. It can therefore be manufactured for technological reasons no cross-structure pressure water impermeable seal.

task The invention is a cross-structure pressure water impermeable seal which can be produced with reasonable effort. Besides that is to provide a sealing system that meets this requirement Fulfills and thus the existing disadvantages are overcome.

The The object of the invention is also by a seal according to the features of claim 1 solved.

advantageous Embodiments of the seal according to the invention are the features of the claims 2 to 5 without limiting the invention.

essential to the invention is in the process of making the pressure water impermeable connection between the strip-shaped druckwasserundurchlässigen Parts of the seal, which consist of a weldable material, by welding, which in the inserted state of the strip-shaped pressure water impermeable parts, takes place.

In surprising This is made possible in a simple way, since the opening in the area where the welding the strip-shaped and overlapping Parts must be made, has an extension, such a Provides space so that safe welding is possible.

This is regularly in the Kind done that at this point, d. H. in particular above and / or below the overlap, a working window in the outer wall in usual On and way is created. With this partial and additional opening, which gap-free to the sawed opening over the entire cross section the outer wall extends or connects, is the corresponding freedom of work for welding possible, without the stability of the outer wall to endanger.

The The object of the invention is also by a sealing system according to the features of claim 6 solved.

advantageous Embodiments of the sealing system according to the invention further characterized by the features of claims 7 to 9, without to limit the invention with it.

The The following information is intended to explain the process without limiting it.

The Procedure allows in principle the production of a seal or a sealing system with Such a seal that is self-contained and thus at proper application of the proceedings a Druchwasserundurchlässigkeit has no weak points.

The Procedure also corresponds in principle the rules of DIN 18195 - part 1 structural waterproofing.

• – Ausschachten der Außenwände des Bauwerkes,
• – Entkernen des Innenkellers,
• – Abschnittsweises Aufsägen der Außenwände aus Mauerwerk oder Beton im Sohle/Wand- Anschlussbereich, beispielsweise in üblicher Art und Weise mit z. B. Ketten/Diamantsägen,
• – Einlegen der neuen Horizontalsperre, d. h. der druckwasserundurchlässigen Teile, die aus einem streifenförmigen Kunststoffdichtungsbahn-Material von ca. 2mm Stärke bestehen, der erfindungsgemäßen druckwasserundurchlässigen Abdichtung, in die durch das Sägen entstandene, oft schlitzförmige Öffnung,
• – Anordnen von Arbeitsfenstern in der Außenwand, ober- und/oder unterhalb des Überlappungsbereiches der streifenförmigen Teile der Abdichtung,
• – Herstellen der druckwasserundurchlässigen Verbindung zwischen den überlappenden Enden der streifenförmigen Teile der herzustellenden Abdichtung, wobei das druckwasserdichte Verschweißen, beispielsweise bei Kunststoffdichtungsbahnen durch Heißluft im bekannten Zweizonenschweißverfahren im Bereich des jeweiligen Arbeitsfensters erfolgt,
• – Verschließen der verblieben Öffnung und der Arbeitsfenster, u. a. mit ggf. Säubern und Ausgleichen der Außenwand,
• – Anbringen von kunststoffbeschichteten Blechen an den Außenwänden zur Montagesicherung der Dichtungsbahn.
• – Setzen einer Flaschenkehle außen,
• – Verlegen der anderen, insbesondere vertikal angeordnete Teile der Abdichtung an der Außenseite der Außenwand,
• – Herstellen einer druckwasserundurchlässigen Verbindung mit den anderen Teilen, insbesondere druckwasserundurchlässigen Teilen, der Abdichtung, welche sich nicht in der Öffnung befinden,
• – Herstellen des dichten Anschlusses zwischen den horizontalen und vertikalen Teilen der Dichtung, beispielsweise durch einen rückläufigen Stoß,
• – Druckwasserdichtes Eindichten von Durchdringungen der Abdichtung,
• – Dichtigkeitsprüfung aller Nähte, beispielsweise manuell mit Prüfnadel/Funkeninduktor,
• – Herstellen einer Schutzlage für das Abdichtungssystem bzw. der Abdichtung durch übliche Dämmplatten oder Bautenschutzmatten als mechanischer Schutz,
• – Hinterfüllungen.

The overall process may contain the following process or work steps, wherein the actual steps may differ according to the desired quality or scope of the respective client:

• - excavation of the external walls of the structure,
• - coring the inner cellar,
• - Sectional sawing the outer walls of masonry or concrete in the sole / wall connection area, for example in the usual manner with z. B. chains / diamond saws,
• - Insert the new horizontal barrier, ie the pressure water impermeable parts, which consist of a strip-shaped plastic sealing strip material of about 2mm thickness, the pressure water impermeable seal according to the invention, in the resulting by sawing, often slit-shaped opening,
• Arranging work windows in the outer wall, above and / or below the overlapping area of the strip-shaped parts of the seal,
• Producing the pressure-water-impermeable connection between the overlapping ends of the strip-shaped parts of the seal to be produced, wherein the pressure-water-tight welding, for example in the case of plastic sealing sheets, is effected by hot air in the known two-zone welding method in the region of the respective work window,
• - closing the remaining opening and the working window, including possibly with cleaning and balancing the outer wall,
• - Attaching plastic-coated sheets on the outer walls for securing the waterproofing membrane.
• - putting a bottle throat outside,
• - Laying the other, in particular vertically arranged parts of the seal on the outside of the outer wall,
• - making a pressure water-impermeable connection with the other parts, in particular pressure-water-impermeable parts, the seal, which are not in the opening,
• - Make the tight connection between the horizontal and vertical parts of the seal, for example, by a retrograde shock,
• - Watertight sealing of penetrations of the seal,
• - Tightness test of all seams, for example manually with test needle / spark inductor,
• Producing a protective layer for the sealing system or the sealing by means of conventional insulation boards or building protection mats as mechanical protection,
• - backfills.

For the part the sealing system, which is located inside the building, the above-mentioned process steps are basically to be applied analogously, wherein in detail differences exist.

• – Abschnittsweises Aufsägen der Innenwände/Schornstein/Innentreppen.
• – Einlegen der neuen Horizontalsperre, d. h. der druckwasserundurchlässigen Teile, die aus einem streifenförmigen Kunststoffdichtungsbahn von ca. 2 mm Stärke bestehen, der erfindungsgemäßen druckwasserundurchlässigen Abdichtung, in die durch das Sägen entstandene, oft schlitzförmige Öffnung,
• – Anordnen von Arbeitsfenstern in der Innenwand, ober- und/oder unterhalb des Überlappungsbereiches der streifenförmigen Teile der Abdichtung,
• – Herstellen der druckwasserundurchlässigen Verbindung zwischen den überlappenden Enden der streifenförmigen Teile der herzustellenden Abdichtung, wobei das druckwasserdichte Verschweißen, beispielsweise bei Kunststoffdichtungsbahn durch Heißluft im bekannten Zweizonenschweißverfahren im Bereich des jeweiligen Arbeitsfensters erfolgt,
• – Verschließen der verblieben Öffnung und der Arbeitsfenster, bzw. Nutzung dieser zur Auftriebssicherung
• – Säubern und Ausgleich des Unterbetons,
• – Setzen der Flaschenkehle Innen,
• – Verlegen einer Trennlage, beispielsweise aus PE-Folie, ggf. Verlegen partieller Kunststoffdichtungsbahnteile für kleinere Fundamente,
• – Verlegen einer druckwasserundurchlässigen Abdichtung (Segment des Abdichtungssystems) vollflächig in dem Innenraum (ggf. mehrere Segmente in den Kellerräumen, dabei ein Segment pro Raum oder mehrere pro Raum),
• – Herstellen einer druckwasserundurchlässigen Verbindung zwischen den überlappenden Enden der Teile der Segmente des herzustellenden Abdichtungssystems,
• – Herstellen einer Schutzlage (mindestens 6 mm) für das Abdichtungssystem bzw. der Abdichtung durch übliche Dämmplatten oder Bautenschutzmatten als mechanischer Schutz,
• – Einbringen der Stahlbetonbodenplatte, und
• – Vernadelung dieser Platte, insbesondere Verankerung in den Arbeitsfenstern.

The following steps are possible for indoor use:

• - Partial sawing of the interior walls / chimney / internal stairs.
• - Inserting the new horizontal barrier, ie the pressurized water impermeable parts, which consist of a strip-shaped plastic sealing strip of about 2 mm thickness, the pressure water impermeable seal according to the invention, in the resulting by sawing, often slit-shaped opening,
• Arranging work windows in the inner wall, above and / or below the overlapping area of the strip-shaped parts of the seal,
• Producing the pressure-water-impermeable connection between the overlapping ends of the strip-shaped parts of the seal to be produced, wherein the pressure-water-tight welding, for example in the case of plastic sealing strip by hot air in the known two-zone welding method in the region of the respective working window,
• - Closing the remaining opening and the working window, or use this for buoyancy protection
• - cleaning and leveling of the sub-concrete,
• - putting the bottle throat inside,
• - Laying a separating layer, for example made of PE film, possibly laying partial plastic sealing strip parts for smaller foundations,
• - Laying a pressure-waterproof seal (segment of the sealing system) over the entire surface in the interior (possibly several segments in the basement, one segment per room or more per room),
• Establishing a pressure-water-impermeable connection between the overlapping ends of the parts of the segments of the sealing system to be produced,
• - Producing a protective layer (at least 6 mm) for the sealing system or the sealing by conventional insulation boards or building protection mats as mechanical protection,
• - placing the reinforced concrete floor slab, and
• - Needling this plate, in particular anchoring in the work windows.

The Parts or segments, d. H. at least one of them, the seal or the sealing system, are also multi-layered in the context of the invention, especially double-layered, executable.

Besides, they are in the second layer by setting additional tight seams foreclosures produced. In case of a mechanical violation of a layer of multilayer Nevertheless, sealing becomes the required pressure water impermeability guaranteed. Furthermore a defective segment can be detected and repaired separately.

The DIN 18195, Part 1 (new), requires in areas of oppressive Water the formation of a single-layer plastic geomembrane.

Additionally is in the context of the invention, the security of the tightness Arrangement of a second layer, in particular formed by the targeted training of foreclosures (described in the type and Manner).

The described method basically corresponds to the following technical Rules: DIN 18195, Part 1-Building Sealing (new), Table 1, line 8 regulates "pressing Water from outside "and points to Sheet 6, Section 8: Remarks by Seals against oppressive Water (pressurized water).

Section 8.7 contains the sealing with PVC plastic strips, loosely laid, 1 layer, of at least 2 mm thickness, immersion depth max. 4.0 m, injection of the seal is not required. Fields larger / max. 100 m ² are to be sealed off.

In the material DIN 16734 to 16738, Sheet 2, Table 5, line 3, are the requirements / characteristics of the plastic geomembranes (Materials of the seal) regulated and described.

The The invention is explained in more detail below using an exemplary embodiment without thus all possible uses the invention finally presented to have.

The Figures show:

1 a sectional side view of a subsequently introduced into a building according to the invention sealing a sealing system, the outer wall is made of masonry, and

2 a further lateral sectional view of a subsequently introduced into a building according to the invention seal, the outer wall of reinforced concrete, and hollow wall precast elements, there is.

1 shows, in a lateral sectional view, a seal according to the invention 4 , The seal according to the invention 4 is part of a waterproofing system, which ensures the entire structure pressure-water impermeable. The seal according to the invention 4 is subsequently introduced into the structure, the outer wall 1 made of masonry.

The outer wall 1 of the building, here consisting of masonry, is in a usual manner on a foundation 2 founded. The approximately horizontal opening 3 , which for introducing the pressure-water-impermeable parts 4.1 the seal 4 serves, is in the outer wall 1 sawed. The opening 3 is about 15 cm above the top of the foundation 2 , in which the strip-shaped parts 4.1 the seal 4 are arranged overlapping with their ends. In the area of overlaps (in 1 not shown) is also a working solid, about 10 cm high and 15 cm wide, above and below the opening 3 arranged.

The ends of the strip-shaped parts 4.1 the seal 4 (Plastic geomembranes, which have a thickness of about 2 mm) are each pressure water impermeable verscheißt each other.

The out of the opening 3 outstanding side edges of the strip-shaped parts 4.1 the seal 4 are on the outside of the outer wall 1 pressure water impermeable with another part 4.2 the seal 4 , namely a plastic strip, in particular vertically attached to the outer wall, having a thickness of about 2 mm, verscheißt.

The out of the opening 3 outstanding side edges of the strip-shaped parts 4.1 the seal 4 are on the inside of the outside wall 1 pressure water impermeable with another part 4.3 the seal 4 namely one in particular horizontally on the lower concrete 5 lying plastic geomembrane, which have a thickness of about 2 mm, verscheißt. After welding, that was on the part 4.3 overlying reinforced concrete slab 6 manufactured and over a needling 8th , consisting of structural steel, with the outer wall 1 firmly connected.

This is the parts 4.1 . 4.2 , and 4.3 the seal 4 connected to each other pressure-water impermeable, wherein the seal 4 within the entire outer wall 1 completely encircling and thus forming a closed segment is arranged. Will the seal 4 with the other segments of the waterproofing system (in 1 not shown) connected analogously, creates a self-contained trough-like structure, which is total (gap-free) druckwasserundurchlässig.

Alternatively to the in 1 used single-layer sealing 4 may consist of two layers, for example, two plastic geomembranes, each having a thickness of about 2 mm exist. The ends of the parts of the webs are welded analogue druckwasserundurchlässig.

Another alternative to the in 1 used, consisting of a single layer seal 4 , one of two layers, for example, two plastic - sealing sheets, each having a thickness of about 2 mm, existing seal 4 be, which has pressure watertight sealed off segments. These partitioned segments of the seal 4 For example, this can be achieved by removing the from the opening 3 outstanding side edges of the strip-shaped parts 4.1 both superimposed layers of the seal 4 approximately parallel to the longitudinal axis of the outer wall 1 pressure water impermeable with each other are verschisses.

The Ends of the parts of the webs are welded analogue druckwasserundurchlässig.

2 shows, in a sectional side view, another seal according to the invention 4 , The seal according to the invention 4 is part of a waterproofing system, which ensures the entire structure pressure-water impermeable. The seal according to the invention 4 is subsequently introduced into the structure, the outer wall 1 made of reinforced concrete.

The outer wall 1 The structure, here consisting of reinforced concrete, is in the usual way on a foundation 2 founded. The approximately horizontal opening 3 , which for introducing the pressure-water-impermeable parts 4.1 the seal 4 serves, is in the outer wall 1 sawed. The opening 3 is located above the top of the foundation 2 , in which the strip-shaped parts 4.1 the seal 4 are arranged overlapping with their ends. In the area of overlaps (in 2 not shown) is also a work firm, about 10 cm high and 15 cm wide, above the opening 3 arranged. The ends of the strip-shaped parts 4.1 the seal 4 (Plastic geomembranes, which have a thickness of about 2 mm) are each pressure water impermeable verscheißt each other.

The out of the opening 3 outstanding side edges of the strip-shaped parts 4.1 the seal 4 are on the outside of the outer wall 1 pressure water impermeable with another part 4.2 the seal 4 , namely a plastic strip, in particular vertically attached to the outer wall, having a thickness of about 2 mm, verscheißt.

The out of the opening 3 outstanding side edges of the strip-shaped parts 4.1 the seal 4 are on the inside of the outside wall 1 pressure water impermeable with another part 4.3 the seal 4 namely one in particular horizontally on the lower concrete 5 lying plastic geomembrane, which have a thickness of about 2 mm, verscheißt. After welding, that was on the part 4.3 overlying reinforced concrete slab 6 manufactured and over a needling 8th consisting of structural steel and using the working windows (not shown) with the outer wall 1 firmly connected.

This is the parts 4.1 . 4.2 , and 4.3 the seal 4 connected to each other pressure-water impermeable, wherein the seal 4 within the entire outer wall 1 completely encircling and thus forming a closed segment is arranged. Will the seal 4 with the other segments of the waterproofing system (in 2 not shown) connected analogously, creates a self-contained trough-like structure, which is total (gap-free) druckwasserundurchlässig.

Claims (9)

Sealing for subsequent introduction into a land-based structure, wherein the seal consists at least of several druckwasserundurchlässigen parts, which is at least one part with at least one opening at least one wall of the building can be introduced, characterized in that at least the parts of the seal, at least in a wall of the building can be introduced, in the wall area and / or in the opening of the wall pressure water impermeable to each other are connected. Sealing according to claim 1, characterized in that the production of the pressure water impermeable compound between the strip-shaped druckwasserundurchlässigen Parts of the seal, which consist of a weldable material, through welding is feasible. Sealing according to claim 1, characterized in that the seal of at least two Layers, wherein the pressure-water-impermeable compounds of the layers are arranged offset. Sealing according to claim 1, characterized in that the seal at least one segment which is pressure-water impermeable to other segments is sealed off. Sealing according to claim 1, characterized in that the strip-shaped pressure water impermeable parts the seal of a weldable material, in particular Plastic, consist. Sealing system at least containing a seal according to claim 1. Sealing system according to claim 6, characterized in that that the parts of the system have a closed pressure water impermeable tub form. Sealing system according to claim 6, characterized in that that the tub consists of several segments, the pressure water impermeable from are sealed off from each other. Sealing system according to claim 6, characterized in that that at least several of the segments have a multilayer structure have.