Masonry reinforcement structure comprising parallel cords

Abstract

A masonry reinforced with at least one bed joint masonry reinforcement structure. The bed joint reinforcement structure includes at least two cords, which have metal filaments that are twisted together. The cords are oriented parallel or substantially parallel in the length direction of the masonry reinforcement structure.

Claims

1. A masonry reinforced with at least one bed joint masonry reinforcement structure, said masonry comprising a number of layers of units or bricks, and further joints between two neighboring layers of bricks, whereby at least one joint of said masonry is reinforced with a bed joint reinforcement structure, said structure comprising at least two cords, said cords comprising metal filaments that are twisted together in order to allow easily rolling up and rolling out and in order to enable a flat position when rolled out, said cords being oriented parallel or substantially parallel in a length direction of said masonry, said cords being coupled to a non-metal substrate, said substrate being an open structure to allow mortar or glue to penetrate, said substrate comprising glass, carbon, or polymer based filaments or yarns, said cords having been bound to said substrate by means of a molten polymer that solidifies thereafter.

2. The masonry according to claim 1, wherein said metal filaments comprise steel filaments.

3. The masonry according to claim 1, wherein said cords are coupled to said substrate by gluing.

4. The masonry according to claim 1, wherein said cords are coupled to said substrate by at least one yarn.

5. The masonry according claim 1, wherein said cords are integrated in a woven structure, a knitted structure or a non-woven structure.

6. The masonry according to claim 1, wherein the metal filaments have a tensile strength higher than 1000 MPa.

7. The masonry according to claim 1, wherein said substrate consists or glass, carbon or polymer based filaments or yarns.

8. The masonry according to claim 7, wherein said glass, carbon or polymer based filaments or yarns run in weft direction.

9. The masonry according to claim 2, wherein said cords comprise between 2 and 12 steel filaments, each filament having a diameter ranging between 0.20 mm and 1.0 mm.

10. The masonry according to claim 1, wherein there is a distance between two neighboring cords, said distance ranging between 1.0 mm and 10.0 cm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will now be described into more detail with reference to the accompanying drawings whereby

(2) FIG. 1 is an illustration of a masonry reinforcement structure comprising cords glued to a substrate;

(3) FIG. 2 is an illustration of a masonry reinforcement structure comprising cords stitched to a substrate;

(4) FIG. 3 is an illustration of a masonry reinforcement structure comprising cords in a woven structure;

(5) FIG. 4 is an illustration of a masonry reinforcement structure comprising an alternative woven structure;

(6) FIG. 5 is an illustration of a masonry reinforcement structure comprising cords in a knitted structure;

(7) FIG. 6 is an illustration of a masonry reinforcement structure comprising cords embedded in a polymer material.

DETAILED DESCRIPTION OF THE INVENTION

(8) The present invention will be described with respect to particular embodiments and with reference to certain drawings but the invention is not limited thereto but only by the claims. The drawings described are only schematic and are non-limiting. In the drawings, the size of some of the elements may be exaggerated and not drawn on scale for illustrative purposes. The dimensions and the relative dimensions do not correspond to actual reductions to practice of the invention.

(9) The following terms are provided solely to aid in the understanding of the inventions:

(10) Masonry: all building systems that are constructed by stacking units of for example stone, clay, or concrete, joined by for example mortar or glue into the form of for example walls, columns, arches, beams or domes;

(11) Equivalent diameter of a yarn or filament: the diameter of an imaginary yarn or filament having a circular radial cross-section, which cross-section has a surface identical to the surface area of the particular yarn or filament

(12) FIG. 1 is an illustration of a masonry reinforcement structure 100 comprising parallel cords 102 glued to a substrate 110. A preferred steel cord 102 comprises between 2 and 12 filaments, for example a cord having one core filament having a diameter of 0.37 mm and 6 filaments having a diameter of 0.33 m around this core filament (0.37+60.33). The steel cords 102 are oriented in a substantially parallel position. The substrate 110 comprises for example a woven or non-woven polymer structure. Preferably, the substrate 110 has an open structure.

(13) The steel cords 102 are glued to a substrate 110.

(14) The substrate 110 may comprise a polymer material, glass, carbon, metal such as steel or any combination thereof. The substrate 110 is for example a grid or foil obtained by extrusion. Alternatively the substrate 110 comprises a woven or non-woven structure, for example a woven or non-woven polymer structure or a woven or non-woven metal substrate. Examples of non-woven structures comprise a needlepunched or spunbond non-woven substrate, for example in polyamide, polyether sulphone of polypropylene.

(15) In a preferred embodiment the structure 100 comprises steel cords 102 that are glued to a non-woven polyether sulphone substrate 110 or to an extruded polypropylene grid (35 g/m.sup.2 having a 66 mm mesh). In another preferred embodiment the structure 100 comprises steel cords 102 that are glued to a substrate 110 made of glass fibers or glass rovings or to a substrate 110 comprising carbon filaments.

(16) FIG. 2 is an illustration of a masonry reinforcement structure 200 comprising parallel cords 202 stitched to a substrate 210 by means of yarn 204. The cords 202 are for example steel cords comprising 3 filaments having a diameter of 0.48 mm twisted together (30.48 mm). The yarn 204 forms stitches to hold the cords 202 in their mutual parallel or mutual substantially parallel position.

(17) The substrate 210 comprises for example a woven or non-woven polymer structure.

(18) In a preferred embodiment the cords comprise steel cords that are stitched to a polymer substrate for example a non-woven polyether sulphone substrate by means of a polyether sulphone yarn.

(19) In another preferred embodiment the cords are steel cords stitched to a metal substrate, for example a steel mesh or steel grid by a metal yarn, for example a steel yarn. Such structure fully consisting of one material, more particularly metal (steel) is easier to recycle compared to structures comprising a number of different materials.

(20) FIG. 3 is an illustration of a masonry reinforcement structure 300 comprising a woven structure. The woven structure 300 comprises steel cords 302 in the warp direction. A preferred steel cord comprises between 2 and 12 filaments, for example a cord having one core filament having a diameter of 0.37 mm and 6 filaments having a diameter of 0.33 m around this core filament (0.37+60.33).

(21) The weft direction comprises for example a polymer yarn 304, such as a polyamide, a polyether sulphone, a polyvinyl alcohol or a polypropylene yarn.

(22) The masonry reinforcement structure 300 is preferably an open structure permeable for the glue or mortar.

(23) It is clear for a person skilled in the art that different weave patterns can be considered.

(24) FIG. 4 shows a second embodiment of a woven masonry reinforcement structure 400. The masonry reinforcement structure 400 comprises cords integrated in a woven structure 400. The woven structure 400 comprises in the warp direction a combination of polymer yarns 403 and steel cords 402. The weft direction comprises a polymer yarn 404.

(25) FIG. 5 shows a masonry reinforcement structure 500 comprising a knitted structure. The knitted structure 500 comprises steel cords 502 as pillar threads. The steel cords 502 comprise for example steel cords comprising 3 filaments having a diameter of 0.48 mm twisted together (30.48 mm). Another suitable steel cord comprises a cord having one core filament having a diameter of 0.6 mm and 5 filaments having a diameter of 0.73 mm around this core filament (0.6+50.73 mm). The structure further comprises yarn 504 and yarn 506 to keep the steel cords in their mutual parallel or mutual substantially parallel position. The yarn 504 is for example a multifilament yarn, preferably a polyamide, a polyether sulphone, a polyvinyl alcohol or a polypropylene yarn. The yarn 504 may also comprise a metal yarn.

(26) The yarn 506 is connecting neighbouring steel cords 502. The monofilament yarn 506 is preferably a polyamide, a polyether sulphone, a polyvinyl alcohol or a polypropylene yarn. The yarn 506 may also comprise a metal yarn.

(27) FIG. 6 is an illustration of a masonry reinforcement structure 400 comprising cords 602 embedded in strip of a polymer material 604.