Polymer reinforced pavement slab

Abstract

The utility model provides a macromolecule reinforced pavement slab, which belongs to the technical field of pavement slabs and comprises a body, a reinforcing net is embedded in the body, the reinforcing net is of a grid net structure, and the body is wrapped on the outer side of the reinforcing net. The reinforcing net is embedded in the pavement slab body, so that the tensile strength of the pavement slab is far higher than that of a polyethylene pavement slab in the prior art, the damage resistance and deformation resistance of the pavement slab are improved, the pavement slab is prevented from being damaged, deformed and the like in the using process, and the road rescue efficiency and safety are improved; in addition, due to the arrangement of the reinforcing net, it is ensured that the pavement slab can be evenly borne when stressed, the structural stability of the pavement slab is enhanced, and the overall durability and reliability of the pavement slab are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road panel technical field especially is related to a kind of macromolecular reinforced road panel. BACKGROUND

[0002] Road panel is mainly used for paving on soft ground, to strengthen the pressure of heavy objects on the ground, to ensure the smooth passing of rescue equipment and accident aircraft on soft ground. Polyethylene road panel is a kind of road panel made of polyethylene material, which has many excellent properties, including wear resistance, slip resistance, corrosion resistance, environmental protection, chemical stability, and not easy to break. These properties make polyethylene road panel perform well in many environments, especially in construction, oil field drilling, road rescue and other application scenarios, which can provide a stable and safe operating environment.

[0003] The tensile strength of the polyethylene road panel commonly used in road rescue is usually less than 20 megapascals. In the case of special vehicles (such as overweight vehicles) or aircraft rescue scenarios, the tensile strength cannot meet the requirements, which can easily cause the road panel to be damaged or deformed, seriously affecting the efficiency and safety of rescue. Therefore, it is necessary to design a reinforced road panel. SUMMARY

[0004] The purpose of the present application is to provide a kind of macromolecular reinforced road panel, to solve the technical problems of low tensile strength, easy damage and deformation of existing polyethylene road panel.

[0005] The present application provides a kind of macromolecular reinforced road panel, including body, the body is embedded with reinforcing net, the reinforcing net is square grid structure, and the body is wrapped outside the reinforcing net.

[0006] In one embodiment, the reinforcing net is a square grid woven by a reinforcing net, and the outer part of the reinforcing net is impregnated with a fixed layer.

[0007] In one embodiment, the reinforcing net is twisted by aramid fiber and carbon fiber.

[0008] In one embodiment, the fixed layer is a modified epoxy resin pre-impregnated layer.

[0009] In one embodiment, the mesh size of the reinforcing net is 5x5mm to 15x15mm.

[0010] In one embodiment, the body includes a plate body, and the plate body is embedded with reinforcing fibers.

[0011] In one embodiment, the plate body is a polyethylene plate.

[0012] In one embodiment, the reinforcing fiber is aramid short-cut fiber.

[0013] In one embodiment, the outer wall of the body is provided with anti-skid lines.

[0014] The utility model provides a kind of macromolecular reinforced pavement slab, compared with prior art, its beneficial effect lies in: the utility model embeds reinforcing net in pavement slab body, the tensile strength of pavement slab is far more than the polyethylene pavement slab in prior art, the damage resistance and deformation resistance of pavement slab are improved, avoid the phenomenon such as breakage, deformation of pavement slab in use process, improve road rescue efficiency and safety;In addition, the setting of reinforcing net ensures that pavement slab can be evenly loaded when stressed, the structural stability of pavement slab is strengthened, the overall durability and reliability of pavement slab are improved.The utility model structure is simple, convenient to use, damage resistance and deformation resistance are strong, service life is long, safety is high, and practicality is high.

[0015] The utility model adopts aramid short cut fiber and polyethylene blending, and pre-embeds square grid net structure which is twisted by aramid fiber and carbon fiber and is treated by modified epoxy resin pre-impregnation curing in it, and the two cooperate to form innovative fiber composite reinforcement system.Aramid fiber and carbon fiber are tightly interwoven to form unique twisted muscle net structure by twisting process, which greatly improves the strength and stability of fiber grid, ensures that fiber grid can be evenly loaded when stressed, and improves the structural stability, overall durability and reliability of pavement slab.The innovative fiber composite reinforcement system and unique twisted muscle net structure significantly improve the tensile strength of pavement slab, so that the tensile strength of pavement slab is far more than the polyethylene pavement slab in prior art.Because aramid fiber and carbon fiber cannot be fused with polyethylene, the application adopts modification treatment process, accurately controls temperature (150-200 DEG C) and other parameters during polyethylene hot melt injection molding, to ensure that the fusion effect of fiber and polyethylene reaches the best, while avoiding performance decline caused by improper process;Modification treatment process not only ensures the quality of product, but also improves production efficiency and reduces production cost.Through the above innovative design and accurate process control, the performance of macromolecular reinforced pavement slab is breakthroughly improved, and the strict requirements of high-strength application scenarios such as road rescue are met. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor intensity.

[0017] Figure 1 The structure diagram of a macromolecular reinforced pavement slab provided by an embodiment of the present application is shown in the figure.

[0018] Figure 2 As shown in Figure 1 A-A cross-sectional structure diagram of the polymer reinforced pavement panel;

[0019] Figure 3 As shown in Figure 1 B-B cross-sectional structure diagram of the polymer reinforced pavement panel;

[0020] Figure 4 As shown in Figure 1 Structure diagram of the reinforcing net of the polymer reinforced pavement panel;

[0021] Figure 5 As shown in Figure 1 Enlarged structure diagram of the transverse cross-section of the rib net of the polymer reinforced pavement panel.

[0022] Explanation of symbols in the figure:

[0023] 1, body; 101, panel body; 102, reinforcing fiber; 2, reinforcing net; 201, rib net; 202, fixed layer; 3, anti-skid pattern. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0025] It should be noted that when an element is referred to as being "fixed" or "disposed" with another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" with another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] Please refer to Figure 1A structural schematic diagram of a polymer reinforced pavement panel provided by an embodiment of the present application is shown in the figure, only parts related to the embodiment are shown for the convenience of description, and the details are as follows:

[0028] Please refer to Figure 2 A polymer reinforced pavement panel comprises a body 1, and a reinforcing net 2 is embedded in the body 1, the reinforcing net 2 is a square grid structure, and the body 1 is wrapped on the outside of the reinforcing net 2.

[0029] By embedding the reinforcing net 2 in the body 1 of the pavement panel, the tensile strength of the pavement panel is far higher than that of the polyethylene pavement panel in the prior art, the damage resistance and deformation resistance of the pavement panel are improved, the pavement panel is prevented from being damaged and deformed during use, and the road rescue efficiency and safety are improved; in addition, the reinforcing net 2 ensures that the pavement panel can bear uniformly when subjected to force, the structural stability of the pavement panel is enhanced, and the overall durability and reliability of the pavement panel are improved.

[0030] Specifically, please refer to Figure 3 The body 1 comprises a plate body 101, and a reinforcing fiber 102 is embedded in the plate body 101. In the embodiment, the plate body 101 is a polyethylene plate, and the reinforcing fiber 102 is aramid short-cut fiber.

[0031] In order to strengthen the strength of the pavement panel, the application adopts reinforcing fiber and polyethylene blending. Since the aramid short-cut fiber has good affinity with polyethylene, the aramid short-cut fiber is selected as the reinforcing fiber, and the aramid short-cut fiber is mixed in the polyethylene when the polyethylene is formed by hot melt injection molding, so that a polyethylene pavement panel embedded with aramid short-cut fiber is obtained, and the strength of the pavement panel is greatly improved.

[0032] Please refer to Figures 4-5 The reinforcing net 2 is a square grid woven by a rib net 201, and the outside of the reinforcing net 2 is impregnated with a fixing layer 202. In the embodiment, the rib net 201 is twisted by aramid fiber and carbon fiber, and the fixing layer 202 is a modified epoxy resin pre-impregnated layer.

[0033] In order to further strengthen the overall strength of the pavement panel, the internal reinforcing net is carefully designed. In view of the good affinity of aramid fiber and polyethylene and the ultra-high tensile strength of carbon fiber, the reinforcing net 2 is prepared by combining the two. First, the carbon fiber and aramid fiber are braided to form a muscle net 201, ensuring that the fibers are tightly interwoven without loose and misaligned phenomena, and then the braided muscle net 201 is woven into a square grid structure, and the square grid is impregnated with modified epoxy resin and cured to obtain the reinforcing net 2. The combination of aramid fiber with strong affinity and carbon fiber with ultra-high tensile strength forms a muscle net 201 that not only has excellent load-bearing capacity but also can relieve and adapt to deformation to some extent, improving the strength, stability and durability of the pavement panel. Since the epoxy resin is not compatible with polyethylene, and the affinity of the modified epoxy resin with polyethylene is improved, the modified epoxy resin is used as the prepreg, and the type of modified epoxy resin is determined according to the specific working conditions.

[0034] Referring to Figure 4 The mesh size of the reinforcing net 2 is 5x5mm-15x15mm. In this embodiment, the mesh size of the reinforcing net 2 is set in a gradient according to the stress prediction of different parts of the pavement panel. Smaller mesh size, for example, 5x5mm, is designed for areas expected to bear larger pressure, and larger mesh size, for example, 15x15mm, is designed for areas with relatively smaller pressure. The gradient setting of the mesh size can not only improve the tensile strength of the pavement panel, but also reduce the cost.

[0035] Referring to Figure 1 The outer wall of the body 1 is provided with anti-skid lines 3, which increase the friction between the body 1 and the contact surface, and have the effect of preventing slipping.

[0036] The following will be described Figures 1-5 The preparation process and working process of the application of a high polymer reinforced pavement panel are described as follows:

[0037] Preparation process: first, aramid fiber and carbon fiber are braided to ensure that the fibers are tightly interwoven without loose and misaligned phenomena, to obtain a muscle net 201; then the muscle net 201 is woven into a square grid structure, and the mesh size is set in a gradient according to the stress of different parts of the pavement panel, and then the square grid is impregnated into modified epoxy resin and cured to obtain the reinforcing net 2; the reinforcing net 2 and the reinforcing fiber 102 are pre-buried in the mold, and hot-melt polyethylene is injected into it, to obtain the high polymer reinforced pavement panel of the application.

[0038] Working process: when in use, a plurality of pavement panels are spliced together to form a flat road surface, and a temporary road is established on muddy or soft ground for the smooth passage of rescue equipment and accident aircraft, thereby improving the rescue efficiency.

[0039] The polymer reinforced pavement slab of the present application adopts aramid short-cut fibers and polyethylene blending, and internally embeds a square grid structure made of aramid fibers and carbon fibers braided and modified epoxy resin pre-impregnated and cured, both of which cooperate to form an innovative fiber composite reinforcement system. The braiding process makes aramid fibers and carbon fibers tightly interwoven to form a unique braided muscle net structure, greatly improving the strength and stability of the fiber grid, ensuring that the fiber grid can uniformly bear when stressed, improving the structural stability, overall durability and reliability of the pavement slab. The innovative fiber composite reinforcement system and unique braided muscle net structure significantly improve the tensile strength of the pavement slab, making the tensile strength of the pavement slab far exceed that of the polyethylene pavement slab in the prior art. Since aramid fibers and carbon fibers cannot be fused with polyethylene, the present application adopts a modification process to precisely control the temperature (150-200℃) and other parameters during the polyethylene hot melt injection molding process to ensure that the fusion effect of the fibers and polyethylene is optimal, while avoiding performance degradation due to improper process; the modification process not only ensures the quality of the product, but also improves the production efficiency and reduces the production cost. Through the above innovative design and precise process control, the performance of the polymer reinforced pavement slab is significantly improved, meeting the strict requirements of high-strength application scenarios such as road rescue.

[0040] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A polymer-reinforced pavement panel comprising a body (1), characterized in that, The body (1) is embedded with a reinforcing net (2), the reinforcing net (2) is a square grid structure, and the body (1) is coated on the outside of the reinforcing net (2); The body (1) comprises a plate body (101), and the plate body (101) is a polyethylene plate; The reinforcing net (2) is a square grid woven by a reinforcing net (201), and the outside of the reinforcing net (2) is impregnated with a fixing layer (202); the reinforcing net (201) is twisted by aramid fiber and carbon fiber; and the fixing layer (202) is a modified epoxy resin pre-impregnated layer.

2. The polymer-reinforced pavement panel of claim 1, wherein, The mesh size of the reinforcing net (2) is 5*5mm-15*15mm.

3. The polymer-reinforced pavement panel of claim 1, wherein, The plate body (101) is embedded with reinforcing fibers (102).

4. The polymer-reinforced pavement panel of claim 3, wherein, The reinforcing fibers (102) are aramid short-cut fibers.

5. The polymer-reinforced pavement panel of claim 1, wherein The outer wall of the body (1) is provided with anti-skid lines (3).

Images