Warp-knitted GFRP mesh

Abstract

The utility model discloses a warp knitting GFRP mesh which comprises a plurality of longitudinal supporting ribs arranged side by side in the longitudinal direction and a plurality of transverse supporting ribs arranged side by side in the transverse direction, and grids are formed between the longitudinal supporting ribs and the transverse supporting ribs. Each longitudinal supporting rib comprises a longitudinal glass fiber bundle and an epoxy resin layer wrapping the outer side of the longitudinal glass fiber bundle, and each transverse supporting rib comprises a transverse glass fiber bundle and an epoxy resin layer wrapping the outer side of the transverse glass fiber bundle. And the crossed positions of the longitudinal glass fiber bundles and the transverse glass fiber bundles are bundled and fixed. According to the warp-knitted GFRP mesh, the epoxy resin layers are arranged on the surfaces of the glass fiber bundles, the strength of the mesh is greatly enhanced after the epoxy resin layers are cured, mesh holes in the mesh can be made to be larger, the problem of layering during concrete pouring is solved, the crossed positions of the glass fiber bundles are fixed through bundling, and the situation that grids are not neat is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of building reinforcement meshes, in particular to a warp-knitted GFRP mesh. Background Art

[0002] When pouring concrete in construction, it is generally necessary to add support bars to the concrete to increase its strength and crack resistance. In the prior art, steel mesh is generally used as support bars. The steel mesh is generally welded by multiple steel bars evenly distributed in the transverse direction and multiple steel bars evenly distributed in the longitudinal direction. The cost of welding is high and it is easy to have cold welding. The steel mesh itself has a high density and high transportation cost. The concrete prefabricated parts made of it are heavy, and the transportation cost and building load-bearing capacity are both large. Especially when pouring building parts with thinner concrete slabs, since the surface of the steel bar is relatively smooth and the wrapping gripping force on the concrete is insufficient, if the thin concrete slab is not properly maintained, a grid-like pattern consistent with the shape of the steel mesh will be formed on its surface. In fact, fine cracks distributed in the same shape as the steel mesh are formed, resulting in certain safety hazards in the thin concrete slab.

[0003] For this reason, in the prior art, a fiber woven mesh is used to replace the steel mesh after being dipped in glue and cured. The existing fiber woven mesh is generally processed into a mesh by weaving, and then the woven mesh is dipped in glue, and then dried and cured to form a mesh with a certain rigidity. For example, a glass fiber mesh is generally first woven into a glass fiber mesh during processing, and then the glass fiber mesh is dipped in acrylic emulsion, and then dried and cured to form a mesh with a certain rigidity. In order to ensure the strength of the mesh processed by this processing method, it is often necessary to weave a mesh with smaller mesh holes. However, in the actual concrete pouring process, the smaller mesh holes will block the stones in the concrete, which will easily cause the concrete to delaminate and affect the pouring quality. In addition, blocking the stones will increase the load-bearing capacity of the mesh, which will easily lead to the destruction of the mesh. Therefore, further, the glass fiber mesh is often designed to have a larger mesh hole between multiple parallel glass fiber bundles with a smaller spacing, so that the stones in the concrete can pass through the larger mesh hole. However, in actual production, the glass fiber bundles of the woven mesh are not fixed, resulting in an uneven grid after being dipped in acrylic emulsion due to the gravity of the acrylic emulsion. In addition, the wire bundles of the glass fiber bundles will become thinner after being dipped in acrylic emulsion, resulting in a certain gap between the multiple parallel glass fiber bundles with a smaller spacing, which still easily causes the stones in the concrete to be inserted into the gap. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a warp-knitted GFRP mesh, in which an epoxy resin layer is provided on the surface of the glass fiber bundle. After the epoxy resin layer is cured, the strength of the mesh is greatly enhanced, so that the mesh holes in the mesh can be made larger, thereby avoiding the problem of stratification during concrete pouring. In addition, the cross positions of the glass fiber bundles are fixed by bundling to avoid uneven meshes.

[0005] In order to solve the above technical problems, the utility model solves the problems through the following technical solutions: a warp-knitted GFRP mesh, comprising a plurality of longitudinal supporting ribs arranged side by side in the longitudinal direction and a plurality of transverse supporting ribs arranged side by side in the transverse direction, a grid is formed between the longitudinal supporting ribs and the transverse supporting ribs, the longitudinal supporting ribs comprise longitudinal glass fiber bundles and an epoxy resin layer coated on the outside of the longitudinal glass fiber bundles, the transverse supporting ribs comprise transverse glass fiber bundles and an epoxy resin layer coated on the outside of the transverse glass fiber bundles, and the intersection of the longitudinal glass fiber bundles and the transverse glass fiber bundles are tied and fixed. This warp-knitted GFRP mesh is provided with an epoxy resin layer on the surface of the glass fiber bundles, and the epoxy resin layer greatly enhances the strength of the mesh after curing, so that the mesh holes in the mesh can be made larger, avoiding the problem of stratification during concrete pouring, and the intersection of the glass fiber bundles is fixed by tying to avoid uneven grids.

[0006] In the above technical solution, preferably, the transverse glass fiber bundle and / or the longitudinal glass fiber bundle include bundled glass fibers arranged in the same direction, and the intersection of the longitudinal glass fiber bundle and the transverse glass fiber bundle is fixed by bundling the bundled glass fibers. The transverse glass fiber bundle and the longitudinal glass fiber bundle are bundled at the intersection by bundling glass fibers, and the bundled glass fibers can be integrated with the transverse glass fiber bundle or the longitudinal glass fiber bundle without other bundling materials, and the bundled glass fibers do not need to be cut during bundling, so that the processing is more convenient.

[0007] In the above technical solution, preferably, the surface of the epoxy resin layer is printed with a concave-convex texture. By printing the concave-convex texture on the surface of the epoxy resin layer, the friction of the surface of the epoxy resin layer can be increased, the concrete adhesion effect is better, and cracks are less likely to occur.

[0008] In the above technical solution, preferably, a square hole of 5 cm×5 cm is formed between the longitudinal supporting ribs and the transverse supporting ribs.

[0009] In the above technical solution, preferably, the longitudinal glass fiber bundle and the transverse glass fiber bundle are both in sheet form, and the longitudinal glass fiber bundle and the transverse glass fiber bundle are bundled together. This structure can facilitate the bundling and positioning between the longitudinal glass fiber bundle and the transverse glass fiber bundle.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the warp-knitted GFRP mesh is provided with an epoxy resin layer on the surface of the glass fiber bundle, and the epoxy resin layer greatly enhances the strength of the mesh after curing, so that the mesh holes in the mesh can be made larger, avoiding the problem of stratification during concrete pouring, and the cross positions of the glass fiber bundles are fixed by bundling to avoid uneven grids. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model.

[0012] Figure 2 This is a schematic cross-sectional view of Example 1 of the utility model.

[0013] Figure 3 This is a schematic diagram of the overall structure of Example 2 of the utility model. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figure 1 to Figure 2 , Embodiment 1, a warp knitted GFRP mesh, comprising a plurality of longitudinal support ribs 1 arranged side by side in the longitudinal direction and a plurality of transverse support ribs 2 arranged side by side in the transverse direction, a grid is formed between the longitudinal support ribs 1 and the transverse support ribs 2, the longitudinal support ribs 1 comprise a longitudinal glass fiber bundle 11 and an epoxy resin layer 3 coated on the outside of the longitudinal glass fiber bundle 11, the transverse support ribs 2 comprise a transverse glass fiber bundle 21 and an epoxy resin layer 3 coated on the outside of the transverse glass fiber bundle 21, and the intersection of the longitudinal glass fiber bundle 11 and the transverse glass fiber bundle 21 is tied and fixed. This warp knitted GFRP mesh is provided with an epoxy resin layer on the surface of the glass fiber bundle, and the epoxy resin layer 3 greatly enhances the strength of the mesh after curing, so that the mesh holes in the mesh can be made larger, avoiding the problem of stratification during concrete pouring, and the intersection of the glass fiber bundles is fixed by tying to avoid uneven grids.

[0015] The lateral glass fiber bundle 21 and / or the longitudinal glass fiber bundle 11 include bundled glass fibers 22 arranged in the same direction, and the intersection of the longitudinal glass fiber bundle 21 and the lateral glass fiber bundle 21 is fixed by the bundled glass fibers 22. It is easy for a person skilled in the art to understand that the bundled glass fibers 22 can be arranged in the same direction on the longitudinal glass fiber bundle 21, or can be arranged in the same direction on the transverse glass fiber bundle 21, and the transverse glass fiber bundle 21 and the longitudinal glass fiber bundle 11 are bundled at the intersection by the bundled glass fibers 22, and the bundled glass fibers 22 can be integrated with the transverse glass fiber bundle 21 or the longitudinal glass fiber bundle 11, and no other bundling materials are required, and the bundled glass fibers 22 do not need to be cut during bundling, which is more convenient to process. In the present embodiment, the bundled glass fibers 22 are arranged transversely and integrated with the transverse glass fiber bundle 21.

[0016] As a preferred size, in this embodiment, a square hole of 5 cm×5 cm is formed between the longitudinal supporting ribs 1 and the transverse supporting ribs 2 .

[0017] In order to facilitate the bundling and fixing between the longitudinal glass fiber bundle 11 and the transverse glass fiber bundle 21 , the longitudinal glass fiber bundle 11 and the transverse glass fiber bundle 21 are both in sheet form, and the longitudinal glass fiber bundle 11 and the transverse glass fiber bundle 21 are closely attached and bundled.

[0018] See also Figure 3 Embodiment 2, Embodiment 2 is different from Embodiment 1 only in that: a concave-convex texture 31 is printed on the surface of the epoxy resin layer 3. The concave-convex texture 31 can be processed by roller printing during the drying process of the epoxy resin layer 3. By printing the concave-convex texture 31 on the surface of the epoxy resin layer 3, the friction of the surface of the epoxy resin layer 3 can be increased, the concrete adhesion effect is better, and cracks are not easy to appear.

[0019] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A warp-knitted GFRP mesh, comprising a plurality of longitudinal supporting ribs (1) arranged side by side in the longitudinal direction and a plurality of transverse supporting ribs (2) arranged side by side in the transverse direction, wherein a grid is formed between the longitudinal supporting ribs (1) and the transverse supporting ribs (2), wherein: The longitudinal support rib (1) comprises a longitudinal glass fiber bundle (11) and an epoxy resin layer (3) coated on the outside of the longitudinal glass fiber bundle (11); the transverse support rib (2) comprises a transverse glass fiber bundle (21) and an epoxy resin layer (3) coated on the outside of the transverse glass fiber bundle (21); the longitudinal glass fiber bundle (11) and the transverse glass fiber bundle (21) are tied and fixed at their intersections.

2. A warp knitted GFRP mesh according to claim 1, characterized in that: Bundling glass fibers (22) are provided along the transverse glass fiber bundle (21) and / or the longitudinal glass fiber bundle (11) in the same direction, and the intersection position of the longitudinal glass fiber bundle (11) and the transverse glass fiber bundle (21) is fixed by bundling with the bundling glass fibers (22).

3. A warp knitted GFRP mesh according to claim 1, characterized in that: The surface of the epoxy resin layer (3) is printed with a concave-convex texture (31).

4. A warp knitted GFRP mesh according to claim 1, characterized in that: A square hole of 5 cm×5 cm is formed between the longitudinal supporting rib (1) and the transverse supporting rib (2).

5. The warp knitted GFRP mesh according to claim 1, characterized in that: The longitudinal glass fiber bundle (11) and the transverse glass fiber bundle (21) are both in sheet form, and the longitudinal glass fiber bundle (11) and the transverse glass fiber bundle (21) are closely attached and bundled.

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