DE2138171C2 - Protected reinforced concrete joint - adjacent edges are recessed and polysulphide sheet is pressed into polysulphide joint infill - Google Patents

Abstract

Joints in building structures, partic. between steel-reinforced concrete, are sealed by the application of a durable adhesive to the joint edges and pressing into the seal a flat material to cover the edges. The seal is polysulphide and the flat material is a polysulphide band which has been cured out. The outside edges of the joint of the building material are recessed. The two building materials form a joint. The two edges of the joint are given a recess of rectangular cross-section which is filled with polysulphide; this fills the porous surfaces of the materials.

Description

The invention relates to a device for sealing structural joints according to the preamble of Claim 1. Such a joint seal can in particular, but not exclusively, be used for mending damaged joints can be used with advantage.

With the present invention, the joint seal should be designed according to the main patent so that it is well protected against mechanical attacks. This is indicated in the characterizing part of the claim 1 specified feature achieved.

By arranging such a recess there is the possibility that the joint closes off to the outside To attach the tape in such a way that not only does it improve the appearance, but that the Tape is also protected against mechanical attacks. This joint seal is particularly suitable for new buildings suitable to produce a joint seal with the help of a prefabricated, permanently elastic tape.

The recess for the flush countersinking of the strip is expediently dimensioned to be equal to the strip thickness. In the case of an external cladding of the building, for example by mosaic panels, the thickness of the Cladding should be taken into account in the recessing, in which case the cladding expediently does not extend over the band. Although in principle there is also the possibility Passing the fairing over the belt, it is considered advantageous to move the fairing on both sides only to bring the tape up to η and to release it yourself, as this allows a control at any time and, if necessary, repairs can be carried out without removing cladding panels.

According to a further embodiment of the invention, arched depressions are provided, in which the tape is inserted with an outwardly concave curvature. This allows for the same Width of the edge zones of the building parts receiving the tape wider areas for the connection between Provide tape and structure and also achieve special architectural effects.

ίο Regardless of the recess shape, the arrangement of a recess results in a well-defined adhesive surface that is particularly protected against damage, the width of which can be adjusted as desired by shaping it.
The invention is explained in more detail below with reference to the drawing, for example, namely shows

F i g. 1 shows a formed joint with a substantially rectangular recess;

2 shows another embodiment with an outer cladding and using a release film and

F i g. 3 a grouting with arched depressions.

In the drawing, two structural parts 1 and 2 are shown schematically in the area of a joint 3, which located between the two parts. At the joint edges are both building parts 1 and 2 with one each give away approximately rectangular recess 10 (Fig. 1), their Depth approximately the thickness of a strip 6 made of permanently elastic plastic, preferably polysulfide rubber, is equivalent to. Before the tape 6 is inserted into the infeeds 10, polysulphide rubber is applied to the infeed. by penetrating the porous surfaces of the building parts ί and 2 and by networking with the material of the band 6 a reliable connection of the band with the structural parts 1 and 2 manufactures.

In this embodiment, insulating material 9 is introduced into the relatively wide joint 3, which however, a ventilation duct 8, preferably to the atmosphere continuously, leaves free.

In the embodiment of FIG. 1, the surface 11 of the structure is rough and the depth of the Depressions 10 roughly correspond to the thickness of the strip 6.

Deviating from this, FIG. 2 an outer cladding 12 z. B. from mosaic stones, which is why the depth of the Depressions 10 'can be kept relatively small here in order to align the outside of the belt 6 to be reached with the outside of the cladding 12. An embodiment is preferred in which the 3and 6 is exposed, as this enables better control and repair options and also Changes in the width of the joint 3 ′ occurring in the course of time are absorbed by the elasticity of the band 6 can be.

F i g. 2 also shows a separating film 13 of smaller width than that of the tape 6 between the latter and the Structural parts 1 and 2. The band 6 is therefore only outside the separating film 13 on both sides with the structural elements 1 and 2 connected via the adhesive material S, while the middle area of the tape corresponds to the width the separating film 13 is freely movable. d. H. can expand and contract elastically, as the case may be is necessary to accommodate changes in the width of the joint 3 '.

Finally, Fig. 3 shows a further embodiment, by here arc-shaped F.intiefungen 14 are provided on the structural parts 1 and 2, which also over

| ί '| suitable adhesive material 5 that

Record '0 put permanently elastic tape 6'. This execution

% \ Approximate shape has, as can be seen, the advantage that the adhesive

ψ. area between the band 6 'on the one hand and the building

W work parts 1 and 2 on the other hand compared to a simple

% Ά chen rectangular recess, approximately according to FIG. 1, we-

I '■ -, is considerably larger, without the outward

i f- ^: joint seal appearing larger width

;: 4 points Of course, such an embodiment can also be

; i; form, especially if the joint width is narrow, with a

K release film according to FIG. 2 combine. The fugue is here

I, 'denoted by 3 "

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Claims (4)

Patent claims: 1. Device for sealing structural joints, in particular for repairing joint seals between precast reinforced concrete parts, in the case of the surface edge zones adjacent to the joint a permanently elastic adhesive material is applied to the structural parts, onto which a joint bridging the gap and the flat sealing element covering the surface edge zones is pressed on is, with polysulfide rubber as the adhesive material and a cured rubber-elastic as the sealing element Ribbon made of polysulphide rubber is arranged according to patent 2126 537, characterized in that that a recess (10, 10 ', 14) is arranged in each of the surface edge zones of the structural parts adjacent to the joint 2. Device according to claim 1, characterized in that dao the recess (JO) for flush with the surface Countersinking of the band (6) is dimensioned to be equal to the band thickness. 3. Apparatus according to claim 2, characterized in that with an outer cladding (12) of the Structure, the thickness of the cladding is taken into account in the recess (10 '). 4. Apparatus according to claim 1, characterized in that arcuate depressions (14) are provided, in which the band (6 ') with outwardly concave. he curvature is inserted.