RU220211U1 - REPAIR WATERSPIN FOR EXPANSION JOINTS FOR WATERPROOFING COATINGS - Google Patents

Abstract

The utility model relates to the field of construction and is aimed at increasing the reliability of sealing the waterproofing contour of buildings and structures. The technical result is that the proposed design solution for the repair waterstop of expansion joints for waterproofing coatings ensures a tight connection of the waterstop with the roll waterproofing. The purpose of the utility model is to develop a constructive solution for the repair waterstop of expansion joints, ensuring a tight connection between the waterstop and the roll waterproofing. This problem is solved due to the fact that the repair waterstop of expansion joints for waterproofing coatings, made in the form of a tape made of elastic material, contains a rectangular protrusion in the central part of the cross section, as well as sections with regular convexities symmetrical relative to the protrusion, located on the edge of the tape with a larger area , characterized in that the areas with convexities are placed on opposite edges of the tape in a mirror manner. In this case, the cross sections of the convexes have the shape of a semicircle. In this case, the cross sections of the convexes have a parabolic shape.

Description

The utility model relates to the field of construction and is aimed at increasing the reliability of sealing the waterproofing contour of buildings and structures.

When creating the external waterproofing contour of buildings and structures, several types of waterproofing materials are used, for example, when creating a waterproofing system for slab structures (coverings and floors) of parking lots, stylobates, waterstops are simultaneously used to waterproof expansion joints and, for example, rolled materials to create an external waterproofing layer.

As you know, an expansion joint is designed to reduce the impact on structures in places of possible uneven deformations that occur when air temperature fluctuates, seismic phenomena, and uneven settlement of the foundation soil.

In most cases, when constructing an expansion joint in monolithic structures, its waterproofing is carried out at the stage of reinforcement of the structures (before supplying the concrete mixture) [STO NOSTROY 2.7.156-2014 “Concrete and reinforced concrete structures. Construction of waterproof structures. Rules, control of implementation and requirements for work results”]. The waterstop is fixed to the reinforcement frame, in the area where the future expansion joint is formed, and then the concrete mixture is laid in layers. Such a waterproofing product, located in an array, belongs to internal waterstops; it acts as a waterproofing barrier, i.e., it does not allow water to pass through the expansion joint into buildings and structures.

It is worth noting that in a number of cases, the installation of internal waterstops during construction is not carried out intentionally or mistakenly [Shilin, A.A. Waterproofing of underground and buried structures during construction and repair / A.A. Shilin. - M.: Publishing house MISS - MGSU, 2018. - 372 p.]. In such cases, to ensure reliable waterproofing of the expansion joint (after the concrete has hardened), waterproofing products are used, which are fixed to the surface of structures containing the expansion joint. Such products, designed to ensure reliable waterproofing of joints after concrete has hardened, include repair waterstops.

When using repair waterstops, there is a problem of hermetic connection of various waterproofing materials: repair waterstop products made of elastic material and widely used rolled waterproofing materials made on the basis of bitumen, polyvinyl chloride or ethylene propylene rubber. This problem is due to the lack of design solutions in existing repair waterstops that would ensure their tight connection with rolled waterproofing.

The closest in technical essence to the claimed design solution is “DR waterstop” [https://www.geotx.ru/gidroizolyaciya/gidroshponka/dlya-deformacionnyh-shvov/gidroshponka-dr/dr-210-20pvh/]. This repair waterstop of expansion joints for waterproofing coatings, made in the form of a tape of elastic material, contains in the central part of the cross section a rectangular protrusion - a deformation compensator for the perception of possible movements of the expansion joint caused by temperature fluctuations and uneven precipitation of the base soil, as well as sections symmetrical relative to the protrusion with convexities located on the edge of the tape with a larger area, designed to increase adhesion when fixing the waterstop to the surface of the structure.

The features of the prototype, which coincide with the essential features of the claimed utility model, are a repair waterstop for expansion joints for waterproofing coatings, made in the form of a tape of elastic material, containing a rectangular protrusion in the central part of the cross-section, as well as sections with regular convexities symmetrical relative to the protrusion, located on the edge tapes with a larger area.

The disadvantage of the prototype should be considered the lack of a constructive solution that would ensure a hermetic connection of the repair waterstop with the roll waterproofing.

Thus, the technical problem lies in the lack of a constructive solution for the repair waterstop of expansion joints, ensuring a tight connection of the waterstop with the roll waterproofing.

The technical problem is solved due to the fact that the repair waterstop of expansion joints for waterproofing coatings, made in the form of a tape made of elastic material, contains a rectangular protrusion in the central part of the cross section, as well as sections symmetrical relative to the protrusion with regular convexities, located on the edge of the tape with a larger area , characterized in that the areas with convexities are placed on opposite edges of the tape in a mirror manner. In this case, the cross sections of the convexes have the shape of a semicircle. In this case, the cross sections of the convexes have a parabolic shape.

The purpose of the utility model is to develop a constructive solution for the repair waterstop of expansion joints, ensuring a tight connection between the waterstop and the roll waterproofing.

The utility model is illustrated by drawings (Fig. 1-4).

In fig. Figure 1 shows a cross-section of a repair waterstop for expansion joints for waterproofing coatings.

In fig. Figure 2 shows a cross-section of the repair waterstop of expansion joints after its fixation on the surface of the structure and the installation of a hermetic connection with rolled waterproofing.

In fig. Figure 3 shows a fragment of the cross section of the repair waterstop of expansion joints in the area of its fixation on the surface of the structure and the device for a hermetic connection with rolled waterproofing.

In fig. Figure 4 shows an axonometric image of the repair waterstop of expansion joints after its fixation. The distance between the fastening elements on the clamping profile is 90 mm (given for reference).

In fig. 1-4 indicated:

1 - repair waterstop for expansion joints for waterproofing coatings;

2 - rectangular protrusion;

3 - the width of the area with regular convexities, located on the edge of the tape with a smaller area, intended for making a hermetically sealed connection with rolled waterproofing;

4 - the width of the area with regular convexities, located on the edge of the tape with a larger area, intended for the device for fixing the key on the surface of the structure;

5 - regular bulges;

6 - clamping profile for fixing a section of waterstop with regular bulges;

7 - fastening element for fixing a section of a waterstop with regular bulges;

8 - roll waterproofing;

9 - structure containing an expansion joint, on the surface of which a repair waterstop of expansion joints is fixed

10 - expansion joint;

11 - direction of possible water migration in the expansion joint;

12 - layer of sealant.

This problem is solved due to the fact that the repair waterstop of the expansion joints (1) is installed on the surface of the structure (9), in which the expansion joint (10) is made so that the rectangular protrusion (2) is located inside the expansion joint (10). The repair waterstop is preliminarily fixed along the width of the sections (4) with regular bulges (5), using a layer of sealant (12). Next, the repair waterstop is connected to the roll waterproofing (8) along the width of the sections (3) with regular convexities (5) using a combination of sealing and fixing means: a sealant layer (12), a clamping profile (6) and a fastening element for fixing (7 ). At the same time, the repair waterstop (1) is fixed to the surface of the structure (9) in areas (4).

The technical result is that the proposed design solution for the repair waterstop of expansion joints for waterproofing coatings ensures a tight connection of the waterstop with the roll waterproofing.

The technical result is achieved due to the design solution of the repair waterstop, which contains sections with convexities that are placed mirror-like on opposite edges of the tape.

The presence of sections that are symmetrical relative to the rectangular protrusion with regular convexities, located on the edge of the tape with a smaller area, provides the possibility of a hermetically sealed connection of the waterstop with the roll waterproofing.

The presence of sections with regular convexities, symmetrical relative to the rectangular protrusion, located on the edge of the tape with a larger area, makes it possible to fix the key on the surface of the structure.

The mirror arrangement of sections with regular convexities on opposite edges of the tape makes it possible to both make a hermetically sealed connection between the key and the rolled waterproofing (from one side of the tape) and to fix the section of the key to the surface of the structure (from the opposite edge of the tape).

The shape of the protrusions and their location ensure a tight connection of the waterstop with the rolled waterproofing, as well as fixing the repair waterstop to the surface of the structure.

In addition, the mirror arrangement of sections on opposite edges of the tape allows the use of a repair waterstop in an expansion joint both with the protrusion up (U-shaped protrusion, waterstop on top of the seam cavity) and with the protrusion down (U-shaped protrusion, waterstop at the bottom of the seam cavity).

Thus, the proposed solution provides a tight connection between the repair waterstop of the expansion joint and the roll waterproofing.

Claims (3)

1. Repair waterstop for expansion joints for waterproofing coatings, made in the form of a tape made of elastic material, containing a rectangular protrusion in the central part of the cross section, as well as sections symmetrical relative to the protrusion with regular convexities, located on the edge of the tape with a larger area, characterized in that the sections with convexities are placed on opposite edges of the tape in a mirror manner. 2. Repair waterstop according to claim 1, characterized in that the cross sections of the convexes have the shape of a semicircle. 3. Repair waterstop according to claim 1, characterized in that the cross sections of the convexes have a parabolic shape.