EP1741846A1 - Waterstop - Google Patents

Abstract

A building has two or more structural concrete sections sealed against the ingress or egress of moisture or air by a pre-formed seal (1) strip (2) with one or more side-extensions (3). The seal (1) has one or more secondary side-extensions (5, 7) that position and retain a liquid concrete injection hose (8, 9).

Description

Technical area

The invention relates to a joint tape according to the preamble of the first claim.

State of the art

Joint tapes have long been known to seal joints in the construction sector. For this purpose, the joint tape is arranged, for example, in the region of the joint to be created. For sealing, the so-called. External joint tape on webs, which protrude into the area of the adjoining concrete structure and which are incorporated into the concrete matrix. In order to improve the joint tightness or to seal them later in Wasserumläufigkeit the webs, it is also known to integrate injection hoses in the joint tape. However, the functional capability of hoses integrated in the factory, eg at the head of the web, is controversial among experts and, for example, involves the risk of buckling when rolling up the waterstops and thus a possible defect. In addition, such molded injection hoses are not suitable for venting purposes.
Alternatively, it has therefore gone over to retrofitting functional, certified injection hoses between the webs of the joint tape. This is done in each case with a selective fixation by metal clips, bonding for example with hot melt, welding, Tapes, tabs, etc .. The selective fixation, however, the risk of shifting position results from the mechanical action of the concrete or floating through the air contained in the tube, whereby the injection hoses are partially useless. In addition, the above methods of attachment are very laborious and complicated for the user.

Presentation of the invention

The invention has for its object to avoid the aforementioned disadvantages in a joint tape of the type mentioned above and to provide a safe and simple system for attaching the injection hoses.

According to the invention this is achieved by the features of the first claim.

The core of the invention is thus that at least one retaining web is arranged on the joint strip, which serves to hold a further sealing means.

The advantages of the invention can be seen, inter alia, in that the injection hoses are fixed substantially over their entire length, so that a positional shift does not occur during use. The installation of the hoses is very simple and the user can make no mistakes during installation of the hoses. In addition, the additional webs for attaching the hoses, the function of the joint tape is improved because the waterway is increased. The additional costs for the additional webs are minimal, since on the one hand existing extrusion tools can be adapted very easily and on the other hand only minimal additional material costs arise.

Further advantageous embodiments of the invention will become apparent from the dependent claims.

Short description of the drawing

In the following, embodiments of the invention will be explained in more detail with reference to the drawings. The same elements are provided in the various figures with the same reference numerals.

Fig. 1

einen Teilquerschnitt durch ein erfindungsgemässes Fugenband;

Fig. 2

einen Teilquerschnitt durch ein weiteres erfindungsgemässes Fugenband zur Aufnahme von Schläuchen mit unterschiedlichen Querschnitten;

Fig. 3

einen Teilquerschnitt durch ein weiteres erfindungsgemässes Fugenband welches zur Aufnahme von Schläuchen mit unterschiedlichen Querschnitten adaptiert werden kann;

Fig. 4

das Fugenband aus Fig. 3 mit installierten Schläuchen mit unterschiedlichen Querschnitten;

Fig. 5

einen Teilquerschnitt durch ein weiteres erfindungsgemässes Fugenband mit alternativen Haltestegen;

Fig. 6

einen Teilquerschnitt durch ein weiteres erfindungsgemässes Fugenband mit weiteren alternativen Haltestegen;

Fig. 7

einen Teilquerschnitt durch ein weiteres erfindungsgemässes Fugenband mit weiteren alternativen Haltestegen, welche an den Stegen angeordnet sind.

Show it:

Fig. 1

a partial cross section through an inventive joint tape;

Fig. 2

a partial cross section through another joint tape according to the invention for receiving hoses with different cross sections;

Fig. 3

a partial cross section through another joint tape according to the invention which can be adapted to accommodate hoses with different cross-sections;

Fig. 4

the joint tape of Figure 3 with installed hoses with different cross sections.

Fig. 5

a partial cross section through another inventive joint tape with alternative retaining webs;

Fig. 6

a partial cross section through another joint tape according to the invention with further alternative retaining webs;

Fig. 7

a partial cross section through another inventive joint tape with other alternative retaining webs, which are arranged on the webs.

Only the elements essential for the immediate understanding of the invention are shown.

Way to carry out the invention

In Fig. 1, a joint tape 1 is shown schematically, which comprises a band 2 and a plurality of webs, which are advantageously formed on the band 2. First webs 3 serve to increase the waterway and thus seal the joint. The webs 3 advantageously have projections 4, which serve to improve the attachment in the building and the seal by a larger watercourse. The joint tapes are used in a known manner, for example for the sealing of construction joints. These are created by dividing the building into concreting sections, but the sections are usually connected non-positively, since the reinforcement passes through. Joint tapes are usually made of PVC-P, PVC / NBR, mod. PE, different types of elastomers.

Holding webs 5 are arranged on the band 2 according to the invention, which serve to hold an injection hose or other sealing materials such as swelling tapes or the like. In the embodiment of FIG. 1, the holding webs 5 also projections 6, which perform the same function as the projections 4 of the webs 3, but in addition also serve to securely hold the material to be held. The configuration of the retaining web 5 and the arrangement on the belt and relative to the webs 3 is essentially dependent on the geometry of the material or hose to be held, in particular the diameter of the hose, but not on the type of hose used. This can be held by the holding device any injection hoses or materials. The holding webs 5 advantageously extend over the entire length of the Joint tape, but can also be configured discontinuously, but then a prerequisite is that a secure holder is guaranteed.

Injection tubing should have a sufficient cross-section for a good processability, be robust for processing, the exit of the injection material from the hose system in the concreted state should be possible even at low pressure, the injection system should not connect to the concrete too much because it otherwise there could be problems with pressing.

As injection hoses many different systems are used. For example, there are perforated round PVC inner tubes with double-fabric sheathing, the penetration of cement paste into the interior of the tube during concreting is prevented by the fine fabric of the double-fabric sheathing (filter function); perforated or slotted round PVC inner tubes with slotted sponge rubber casing, the slots of the casing are offset from the perforation of the PVC inner tube; perforated round PVC inner tubes with slotted foil coating, the slots of the foil casing are arranged offset to the outlet openings of the inner tube; semi-circular or rectangular systems of plastic or rubber profiles with injection channels; slotted flat PVC hoses without additional sheathing, the hose slots should remain closed under the concreting pressure and open only at the injection pressure to prevent the penetration of cement paste during concreting; Flat tubes with multiple injection channels, each injection channel can be used separately for one injection procedure (multiple injection). The holding webs are of course adapted to the injection hoses to be used, but in principle can be held by the present invention, a variety of different injection systems.

Injection materials which can be injected into the injection tube include cement suspensions and cement glues, polyurethane resins or foams, epoxy resins, acrylic resins, etc.

In Fig. 2, a joint tape 1 is formed with retaining webs of different design, wherein the retaining webs have substantially a similar basic geometry. The holding web 5 substantially corresponds to that of FIG. 1, a holding web 7 is arranged in comparison to the holding web 5 longer and further from the associated web 3. This makes it possible that a larger injection hose 8 can be securely held by the retaining web 7, as the injection hose 9 which is held by the holding web 5. Usually, of course, not two injection hoses are arranged on a joint tape, but the joint tape shown in FIG. 2 allows each to use injection hoses of different geometries, without each of the joint tape must be changed. With wider joint bands, it is of course also possible to use further geometries of retaining webs, so that even more different injection hoses can be kept.

FIGS. 3 and 4 show a further possibility of how the joint tapes can be configured with holding webs in order to be able to hold different injection hoses. For this purpose, the holding webs 5 and 7 are arranged side by side, so that the shorter web 5 is closer to the associated web 3 as the longer web 7. According to FIG. 4, a hose 9 with a smaller diameter can then simply be clamped between web 5 and web 3, the next arranged retaining web 7 takes over here then only Abdichtfunktionen. If a hose with a larger diameter is to be used, the web 5 is simply removed and the hose can be held by means of the web 7.

In Fig. 5 and 6, another inventive shape of the holding webs is shown. A holding web 10 is here inclined at an angle 11 against the web 3, shown in Fig. 5 in comparison to the web 5 previously shown. According to Fig. 6, the tube 9 is now simply pushed under the angled web 10, and so held by the web. The angle 11 is chosen so that the tube is securely held, and that the holding system is possible Schlauchgometrieunabhängig as possible. In Fig. 6 on the right side is shown that with the system shown here also hoses can be kept with a different geometry, since the web 10 is simply bent, which of course the inclination angle 11 decreases. Although here the web 10 is almost perpendicular to the band, the tube 8 is held securely because the web 10 presses on the tube by means of the spring force resulting from the deflection of the web. The exact geometry of the retaining web 10 must therefore be designed so that, depending on the material used of the belt 1, a sufficient return spring force is achieved without the web 10 breaks off the belt. Of course, the holding web 10 may also have projections 6 analogous to the retaining webs 5 and 7 for improved support.

According to Fig. 7 holding webs 12 can also be arranged on the webs 3, this can be done at right angles or at an angle 11, so that here too the injection hoses can be securely held. This arrangement and mounting of the injection hoses is analogous to FIGS. 5 and 6, where, however, the holding webs 10 are arranged on the belt 2. The holding webs 12 may have analogous to the shown holding webs projections 6 or extensions for improved retention of the hoses.

Of course, the invention is not limited to the embodiment shown and described. Thus, for example, the various holding webs shown are combined with each other as desired.

LIST OF REFERENCE NUMBERS

1

joint tape

2

tape

3

web

4

Projection bridge

5

holding web

6

Lead retaining webs 5, 7, 10

7

holding web

8th

injection hose

9

injection hose

10

holding web

11

angle

12

holding web

Claims (10)

Joint tape (1) for sealing joints, in particular of structures, wherein the joint tape (1) comprises a band (2) and at least one web (3),
characterized,
that at the joint tape (1) at least one holding web (5, 7, 10, 12) is arranged, which serves for holding a further sealing means. Joint tape according to claim 1,
characterized,
that the holding web (5, 7, 10, 12) is arranged in sections or continuously along the joint strip. Joint tape according to claim 1 or,
characterized,
that the holding web (5, 7, 10, 12) on the band (2) or the web (3) is arranged. Joint tape according to claim 1, 2 or 3,
characterized,
that comprises the holding web (5, 7, 10, 12) at least one projection (6). Joint tape according to one of the preceding claims,
characterized,
in that the retaining web (10) is inclined towards the band (2) or that the retaining web (12) is inclined towards the web (3) at an angle (11). Joint tape according to one of the preceding claims,
characterized,
that holding webs (5, 7, 10, 12) of different geometry are arranged on the joint strip (1). Joint tape according to one of the preceding claims,
characterized,
that the sealing means is an injection hose (8, 9). A method of using a joint tape according to any one of claims 1 to 7,
characterized,
that by means of the holding web (5, 7, 10) a sealing means is attached to the joint tape. Method according to claim 8,
characterized,
that the sealing means is pushed under the holding web (5, 7, 10, 12). Method according to claim 8 or 9,
characterized,
that the sealing means by the return spring force of the retaining web (5, 7, 10, 12) is maintained.

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