Prestressed fiber mesh cloth reinforced concrete precast slab and processing technology

Abstract

The present application relates to a kind of prestressed fiber mesh reinforcement reinforced concrete prefabricated slab and processing technology, including ordinary steel mesh and concrete, prestressed fiber mesh is poured on the bottom surface of plate, two short sides of fiber mesh are wound on long strip flat steel plate respectively, flat steel plate wound fiber mesh is clamped between the horizontal plate of L-shaped notch with anchoring slider and long strip angle steel end plate, anchoring slider is fixed on the vertical plate of angle steel end plate by full tooth bolt and nut, the end of angle steel end plate horizontal plate is equipped with pressure bar, pressure bar is tightly above fiber mesh and parallel with the length direction of angle steel end plate.Angle steel end plate, anchoring slider, full tooth bolt, pressure bar, fiber mesh and ordinary steel mesh are formed into a whole by cast-in-place concrete pouring.The present application has higher bending stiffness and bending bearing capacity, and has good crack resistance.

Description

Technical Field

[0001] This invention relates to the field of precast reinforced concrete slab technology, specifically to a prestressed fiber mesh reinforced reinforced concrete precast slab and its processing technology. Background Technology

[0002] Prefabricated reinforced concrete structures are one of the important directions in the development of building structures in my country. They are conducive to the development of my country's construction industrialization, improving production efficiency, saving energy, developing green and environmentally friendly buildings, and improving and ensuring the quality of construction projects. Prefabricated reinforced concrete floor slabs are one of the most important horizontal components in prefabricated reinforced concrete structures. Due to the low tensile strength of ordinary concrete and its large shrinkage during drying and temperature changes, prefabricated reinforced concrete floor slabs frequently develop cracks of varying degrees and forms during construction and use—a fairly common phenomenon. Cracks in prefabricated reinforced concrete floor slabs not only affect the aesthetics of the structural components but also easily lead to leakage in areas such as bathrooms and kitchens, which in turn can cause steel corrosion and reduce the durability of the structure.

[0003] Currently, adding fibers with high tensile strength, high ultimate elongation, and good alkali resistance to concrete to prepare fiber-reinforced concrete, such as steel fiber concrete, glass fiber concrete, polypropylene fiber concrete, and carbon fiber concrete, can effectively improve the crack resistance and durability of concrete structures. However, fiber-reinforced concrete is very expensive, making its cost-effectiveness for improving the crack resistance and durability of concrete very low. Furthermore, prestressed reinforced concrete technology is an effective measure to improve the flexural stiffness of structural members and reduce the number and width of cracks in structural members. However, precast reinforced concrete slabs may develop cracks in both the length and width directions, requiring prestressing of the transverse and longitudinal reinforcement at the bottom of the slab during precasting, greatly increasing the complexity of the technology and the project cost. Summary of the Invention

[0004] This invention provides a prestressed fiber mesh reinforced reinforced concrete precast slab to solve the problems of low stiffness, easy cracking of concrete surface, and easy corrosion of reinforcing bars in the prior art of precast reinforced concrete floor slabs; this invention also provides a processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs.

[0005] To solve the above problems, the prestressed fiber mesh reinforced reinforced concrete precast slab provided by the present invention adopts the following technical solution:

[0006] A precast reinforced concrete slab with prestressed fiber mesh reinforcement comprises: ordinary steel mesh and concrete; prestressed fiber mesh cast onto the bottom surface of the slab; two short sides of the fiber mesh wrapped around elongated flat steel plates; the flat steel plates wrapped with the fiber mesh being positioned between an L-shaped notch with an anchoring slider and a horizontal plate of an elongated angle steel end plate; the anchoring slider being fixed to the vertical plate of the angle steel end plate by threaded bolts and nuts; a pressure bar being provided at the end of the horizontal plate of the angle steel end plate, the pressure bar being close to the fiber mesh and parallel to the length direction of the angle steel end plate; and the angle steel end plate, anchoring slider, threaded bolts, pressure bar, fiber mesh, and ordinary steel mesh being integrally formed by cast-in-place concrete.

[0007] To solve the above problems, the prestressed fiber mesh reinforced reinforced concrete precast slab processing technology provided by the present invention adopts the following technical solution:

[0008] The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs includes the following steps:

[0009] S1: Assemble the bottom mold and four-sided side mold of the prestressed fiber mesh reinforced concrete precast slab to form a test mold. Place the horizontal plates of the two angle steel end plates at both ends inside the test mold, and ensure that the vertical plates of the angle steel end plates are in close contact with the short side mold of the test mold. Then, use full thread bolts to fix the angle steel end plates to the short side mold of the test mold.

[0010] S2: Horizontally cover the upper surface of the test mold base plate with fiber mesh cloth, wrap both ends of the fiber mesh cloth around the flat steel plate respectively, and then place the flat steel plate wrapped with fiber mesh cloth on the base plate of the angle steel end plate, keeping the flat steel plate parallel to the angle steel end plate;

[0011] S3: Insert the fully threaded bolt with nut into the bolt hole of the anchoring slider, place the anchoring slider with the fully threaded bolt on the flat steel plate, and use the L-shaped notch of the anchoring slider to hold the flat steel plate, and then screw the bolt into the threaded hole of the vertical plate of the angle steel end plate.

[0012] S4: Use bolts to fix both ends of the pressure bar to the two long side plates of the test mold respectively, and the height of the pressure bar shall not exceed the thickness of the concrete protective layer to be poured;

[0013] S5: Apply external force to all anchoring sliders at both ends of the test mold simultaneously. After being subjected to force, the anchoring sliders slide along the fully threaded bolts to both ends, thereby driving the fiber mesh cloth to be tensioned to both ends. When the prestress in the fiber mesh cloth reaches the design value, tighten the nuts on the fully threaded bolts to fit the anchoring sliders tightly, preventing the anchoring sliders from moving back due to the prestress of the fiber mesh cloth after the external force is removed.

[0014] S6: Place ordinary two-way steel mesh, pour concrete, vibrate, and cure to the design strength. Remove the test mold to form a prestressed fiber mesh reinforced reinforced concrete precast slab.

[0015] Furthermore, in S1, the vertical plate of the angle steel end plate has at least two rows of threaded holes, of which at least one row of threaded holes is fully aligned with the bolt holes of the short side mold of the trial mold, and at least the other row of threaded holes is fully aligned with the bolt holes of the anchoring slider, ensuring that the angle steel end plate can be fixed simultaneously with the short side mold of the trial mold and the anchoring slider.

[0016] Furthermore, in S2, before wrapping the fiber mesh, prepare a long strip of thin aluminum plate, then fold it in half along the longer center line, and apply resin glue to both the upper and lower surfaces inside the angle of the aluminum plate. Place both ends of the fiber mesh into the angle of the thin aluminum plate and press it tightly. Then apply resin glue to the upper surface of the outer side of the aluminum plate, place the flat steel plate on the upper surface of the outer side of the aluminum plate, and then wrap the fiber mesh around the flat steel plate 3-5 times.

[0017] Furthermore, in S3, the hexagonal heads of the nut and the fully threaded bolt are located on the same side of the anchoring slider.

[0018] Furthermore, in S5, before applying external force to the anchoring slider, two rigid connectors can be prefabricated. One end of the connector can be matched and tightened with all the anchoring sliders on the same side, and the other end of the connector can be matched and connected with the jack. Then, the jack can be placed in the middle of the trial mold, and the end of the jack can be connected to the anchoring slider on the same side through the rigid connector. Finally, external force can be applied to the anchoring slider through the jack. The anchoring slider slides along the threaded bolts fixed to the angle steel side plate to both ends, thereby driving the fiber mesh cloth to be tensioned to both ends.

[0019] Furthermore, the bottom upper surface of the angle steel end plate and the bottom surface of the pressure bar are both smooth and without sharp edges to prevent scratching and damage to the fiber mesh.

[0020] Furthermore, the fiber mesh fabric can be a fiber mesh fabric with a mesh, or it can be a fiber fabric. The fiber can be one or more of glass fiber, carbon fiber, aramid fiber or basalt fiber, and the tensile strength of the fiber is not less than 1500MPa.

[0021] Furthermore, the side molds, bottom molds, and pressure bars of the test mold all have high rigidity and minimal deformation under stress.

[0022] The beneficial effects of the prestressed fiber mesh reinforced reinforced concrete precast slab processing technology provided by this invention are as follows: The fiber mesh set at the bottom of the precast reinforced concrete slab can share the force and resist external loads with ordinary steel bars, thus improving the bidirectional flexural stiffness and flexural bearing capacity of the precast slab to a certain extent, and reducing bidirectional cracks in the precast slab to a certain extent; by applying prestress to the fiber mesh, the fiber mesh is stressed in advance in the concrete structure, thereby increasing the flexural stiffness in the direction of prestress application. The pretension of the fiber mesh can generate a certain precompression stress inside the concrete, which can offset the tensile stress caused by external loads, thereby effectively delaying or reducing the generation of concrete cracks and improving the crack resistance of the structure; the application of pretension can restrain the shrinkage and creep of concrete, reducing the resulting shrinkage cracks and long-term deformation cracks. This helps to improve the service life of the structure; by setting angle steel pads at both ends of the prestressed fiber mesh reinforced concrete precast slab, it can effectively prevent the fiber mesh from shearing due to local pressure, and after the trial mold is removed, it can cooperate with the threaded bolts and anchoring sliders to effectively anchor the two ends of the prestressed fiber mesh. Attached Figure Description

[0023] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0024] Figure 1 A schematic diagram of the prestressed fiber mesh reinforced reinforced concrete precast slab provided by the present invention;

[0025] Figure 2 This is a schematic diagram illustrating the combination of fiber mesh and aluminum plate in the prestressed fiber mesh reinforced reinforced concrete precast slab processing technology provided by the present invention.

[0026] Figure 3 A three-dimensional schematic diagram of the components before concrete pouring in the prestressed fiber mesh reinforced concrete precast slab processing technology provided by this invention. Figure 1 ;

[0027] Figure 4 This is a top view of each component before concrete pouring in the prestressed fiber mesh reinforced concrete precast slab processing technology provided by the present invention.

[0028] Figure 5 This is a three-dimensional schematic diagram (excluding the reinforcing bars) showing the position of the end components in the prestressed fiber mesh reinforced concrete precast slab processing technology provided by the present invention.

[0029] Figure 6 A three-dimensional cross-sectional view (excluding reinforcing bars) of the end component position in the prestressed fiber mesh reinforced concrete precast slab processing technology provided by the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Fiber mesh; 2. Concrete; 3. Ordinary two-way steel mesh; 4. Aluminum plate; 5. Flat steel plate; 6. Long side plate of the test mold; 7. Short side plate of the test mold; 8. Angle steel end plate; 9. Compression bar; 10. Full thread bolt; 11. Anchoring slider; 12. Bolt. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that the main concept of this invention is that the fiber mesh 1 set at the bottom of the precast reinforced concrete slab can share the load and resist external loads together with the ordinary steel mesh 3. Therefore, it can improve the bidirectional flexural stiffness and flexural bearing capacity of the precast slab to a certain extent, and reduce bidirectional cracks in the precast slab to a certain extent. By applying prestress to the fiber mesh 1, the fiber mesh 1 is stressed in advance in the concrete structure, thereby increasing the flexural stiffness in the direction of prestress application. The pretension of the fiber mesh 1 can generate a certain precompression stress inside the concrete, which can offset the tensile stress caused by external loads in the concrete 2, thereby effectively delaying or reducing the generation of cracks in the concrete 2 and improving the crack resistance of the structure. The application of pretension can constrain the shrinkage and creep of the concrete 2, reducing the resulting shrinkage cracks and long-term deformation cracks. This helps to improve the service life of the structure; by setting angle steel pads 8 at both ends of the prestressed fiber mesh reinforced concrete precast slab, it can effectively prevent the fiber mesh 1 from shearing failure due to local pressure, and after the demolding is removed, it can cooperate with the threaded bolts 10 and the anchoring sliders 11 to effectively anchor both ends of the prestressed fiber mesh 1.

[0034] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0035] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0036] An embodiment of the prestressed fiber mesh reinforced reinforced concrete precast slab provided by the present invention:

[0037] like Figure 1 , Figure 3 and Figure 5 As shown, the prestressed fiber mesh reinforced concrete precast slab includes ordinary two-way steel mesh 3 and concrete 2. Prestressed fiber mesh 1 is poured onto the bottom surface of the slab. The two short sides of the fiber mesh 1 are respectively wrapped around a long strip of flat steel plate 5. The flat steel plate 5 wrapped with the fiber mesh 1 is positioned between an L-shaped notch with an anchoring slider 11 and a horizontal plate of a long strip of angle steel end plate 8. The anchoring slider 11 is fixed to the vertical plate of the angle steel end plate 8 by threaded bolts 10 and nuts. A pressure bar 9 is provided at the end of the horizontal plate of the angle steel end plate 8, which is close to the fiber mesh 1 and parallel to the length direction of the angle steel end plate 8. The angle steel end plate 8, anchoring slider 11, threaded bolts 10, pressure bar 9, fiber mesh 1, and ordinary steel mesh 3 are integrally formed by casting in-situ concrete 1.

[0038] Specifically, the formation process of prestressed fiber mesh reinforced reinforced concrete precast slabs is described in the following prestressed fiber mesh reinforced reinforced concrete precast slab processing technology.

[0039] An embodiment of the prestressed fiber mesh reinforced reinforced concrete precast slab processing technology provided by the present invention:

[0040] The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs includes the following steps:

[0041] To solve the above problems, the prestressed fiber mesh reinforced reinforced concrete precast slab processing technology provided by the present invention adopts the following technical solution:

[0042] The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs includes the following steps:

[0043] S1: Assemble the bottom mold and the long side plate 6 and short side plate 7 of the prestressed fiber mesh reinforced concrete precast slab to form a test mold. Place the horizontal plates of the two angle steel end plates 8 at both ends inside the test mold, and ensure that the vertical plates of the angle steel end plates 8 are in close contact with the short side plate 7 of the test mold. Then, use full thread bolts 10 to fix the angle steel end plates 8 and the short side plate 7 of the test mold.

[0044] S2: Fiber mesh cloth 1 is laid horizontally on the upper surface of the test mold base plate. The two ends of the fiber mesh cloth 1 are wrapped around the flat steel plate 5 respectively. Then the flat steel plate 5 wrapped with fiber mesh cloth 1 is placed on the base plate of the angle steel end plate 8. The flat steel plate 5 and the angle steel end plate 8 are kept parallel.

[0045] S3: Insert the fully threaded bolt 10 with a nut into the bolt hole of the anchoring slider 11, place the anchoring slider 11 with the fully threaded bolt 10 on the flat steel plate 5, and use the L-shaped notch of the anchoring slider 11 to hold the flat steel plate 5, and then screw the thread of the fully threaded bolt 10 into the threaded hole of the vertical plate of the angle steel end plate 8.

[0046] S4: Use bolts 12 to fix both ends of the pressure rod 9 to the long side plate 6 of the test mold respectively, and the height of the pressure rod 9 shall not exceed the thickness of the concrete protective layer to be poured;

[0047] S5: Apply external force to all anchoring sliders 11 at both ends of the test mold simultaneously. After being subjected to force, the anchoring sliders 11 slide along the threaded bolts 10 to both ends, thereby driving the fiber mesh cloth 1 to be tensioned to both ends. When the prestress in the fiber mesh cloth 1 reaches the design value, tighten the nuts on the threaded bolts 10 to fit the anchoring sliders 11, so as to prevent the anchoring sliders 11 from moving back due to the prestress of the fiber mesh cloth 1 after the external force is removed.

[0048] S6: Place ordinary two-way steel mesh 3, pour concrete 2, vibrate, and cure to the design strength. Remove the test mold to form a prestressed fiber mesh reinforced reinforced concrete precast slab.

[0049] In S1 of this embodiment, there are two rows of threaded holes on the vertical plate of the angle steel end plate 8. One row of threaded holes is completely aligned with the bolt holes of the short side plate 7 of the test mold, and the other row of threaded holes is completely aligned with the bolt holes of the anchoring slider 11, so as to ensure that the angle steel end plate 8 can be fixed simultaneously with the short side plate 7 of the test mold and the anchoring slider 11.

[0050] In S2 of this embodiment, before winding the fiber mesh cloth 1, a long strip of thin aluminum plate 4 is prepared in advance, then folded along the longer center line, and resin glue is applied to both the upper and lower surfaces inside the angle of the aluminum plate. The two ends of the fiber mesh cloth 1 are placed inside the angle of the thin aluminum plate 4 and pressed tightly. Then, resin glue is applied to the upper surface of the outer side of the aluminum plate, and a flat steel plate 5 is placed on the upper surface of the outer side of the aluminum plate. Then, the fiber mesh cloth 1 is wrapped around the flat steel plate 5 3 times.

[0051] In S3 of this embodiment, the hexagonal heads of the nut and the fully threaded bolt 10 are located on the same side of the anchoring slider 11;

[0052] In S5 of this embodiment, before applying external force to the anchoring slider 11, two rigid connectors (not shown in the figure) are prepared in advance. One end of the connector matches and is tightened with all the anchoring sliders 11 on the same side, and the other end of the connector matches and is connected to the jack (not shown in the figure). Then, the jack is placed in the middle of the test mold, and the end of the jack is connected to the anchoring slider 11 on the same side through the rigid connector. Finally, external force is applied to the anchoring slider 11 through the jack. The anchoring slider 11 slides along the threaded bolts 10 fixed on the side plate of the angle steel end plate 8 to both ends, thereby driving the fiber mesh cloth 1 to be tensioned to both ends.

[0053] In this embodiment, the bottom upper surface of the angle steel end plate 8 and the bottom surface of the pressure bar 9 are both smooth and without sharp edges to prevent scratching and damage to the fiber mesh cloth 1.

[0054] In this embodiment, the fiber mesh fabric 1 is selected as a fiber mesh fabric with a mesh, and the fiber is glass fiber.

[0055] In this embodiment, the long side plate 6, the short side plate 7, the bottom mold, and the pressure bar 9 of the trial mold are all made of steel and have high rigidity.

[0056] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0057] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A processing technology for precast reinforced concrete slabs with prestressed fiber mesh reinforcement, which utilizes precast reinforced concrete slabs with prestressed fiber mesh reinforcement, comprising ordinary steel mesh and concrete, characterized in that... Also includes: The prestressed fiber mesh is cast onto the bottom surface of the slab. The two short sides of the fiber mesh are wrapped around a long, flat steel plate. The flat steel plate wrapped with the fiber mesh is positioned between an L-shaped notch with an anchoring slider and a horizontal plate of a long angle steel end plate. The anchoring slider is fixed to the vertical plate of the angle steel end plate by threaded bolts and nuts. A pressure bar is provided at the end of the horizontal plate of the angle steel end plate. The pressure bar is close to the fiber mesh and parallel to the length direction of the angle steel end plate. The angle steel end plate, anchoring slider, threaded bolts, pressure bar, fiber mesh, and ordinary steel mesh are formed into a whole by cast-in-place concrete. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs includes the following steps: S1: Assemble the bottom mold and four-sided side mold of the prestressed fiber mesh reinforced concrete precast slab to form a test mold. Place the horizontal plates of the two angle steel end plates at both ends inside the test mold, and ensure that the vertical plates of the angle steel end plates are in close contact with the short side mold of the test mold. Then, use full thread bolts to fix the angle steel end plates to the short side mold of the test mold. S2: Horizontally cover the upper surface of the test mold base plate with fiber mesh cloth, wrap both ends of the fiber mesh cloth around the flat steel plate respectively, and then place the flat steel plate wrapped with fiber mesh cloth on the base plate of the angle steel end plate, keeping the flat steel plate parallel to the angle steel end plate; S3: Insert the fully threaded bolt with nut into the bolt hole of the anchoring slider, place the anchoring slider with the fully threaded bolt on the flat steel plate, and use the L-shaped notch of the anchoring slider to hold the flat steel plate, and then screw the bolt into the threaded hole of the vertical plate of the angle steel end plate. S4: Use bolts to fix both ends of the pressure bar to the two long side plates of the test mold respectively, and the height of the pressure bar shall not exceed the thickness of the concrete protective layer to be poured; S5: Apply external force to all anchoring sliders at both ends of the test mold simultaneously. After being subjected to force, the anchoring sliders slide along the fully threaded bolts to both ends, thereby driving the fiber mesh cloth to be tensioned to both ends. When the prestress in the fiber mesh cloth reaches the design value, tighten the nuts on the fully threaded bolts to fit the anchoring sliders tightly, preventing the anchoring sliders from moving back due to the prestress of the fiber mesh cloth after the external force is removed. S6: Place ordinary two-way steel mesh, pour concrete, vibrate, and cure to the design strength. Remove the test mold to form a prestressed fiber mesh reinforced reinforced concrete precast slab.

2. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs according to claim 1, characterized in that, The process includes the following steps: In S1, the vertical plate of the angle steel end plate has at least two rows of threaded holes, of which at least one row of threaded holes is fully aligned with the bolt holes of the short side mold of the trial mold, and at least the other row of threaded holes is fully aligned with the bolt holes of the anchoring slider, so as to ensure that the angle steel end plate can be fixed simultaneously with the short side mold of the trial mold and the anchoring slider.

3. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs according to claim 1, characterized in that, The process includes the following steps: In S2, before wrapping the fiber mesh, prepare a long strip of thin aluminum plate, then fold it in half along the longer center line, and apply resin glue to both the upper and lower surfaces inside the angle of the aluminum plate. Place both ends of the fiber mesh into the angle of the thin aluminum plate and press it firmly. Then apply resin glue to the upper surface of the outer side of the aluminum plate, place the flat steel plate on the upper surface of the outer side of the aluminum plate, and then wrap the fiber mesh around the flat steel plate 3-5 times.

4. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs according to claim 1, characterized in that, The steps include the following: In S3, the hexagonal heads of the nut and the fully threaded bolt are located on the same side of the anchoring slider.

5. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs according to claim 1, characterized in that, The process includes the following steps: In S5, before applying external force to the anchoring slider, two rigid connectors can be prefabricated. One end of the connector can be matched and tightened with all the anchoring sliders on the same side, and the other end of the connector can be matched and connected with the jack. Then, the jack can be placed in the middle of the test mold, and the end of the jack can be connected to the anchoring slider on the same side through the rigid connector. Finally, external force can be applied to the anchoring slider through the jack. The anchoring slider slides along the threaded bolts fixed to the angle steel side plate to both ends, thereby driving the fiber mesh cloth to be tensioned to both ends.

6. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs according to claim 1 or 2, characterized in that, The bottom upper surface of the angle steel end plate and the bottom surface of the pressure bar are both smooth and without sharp edges to prevent scratching and damage to the fiber mesh.

7. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs according to claim 1 or 2, characterized in that, The fiber mesh fabric can be a fiber mesh fabric with a mesh or a fiber fabric. The fiber can be one or more of glass fiber, carbon fiber, aramid fiber or basalt fiber, and the tensile strength of the fiber is not less than 1500MPa.

8. The processing technology for prestressed fiber mesh reinforced reinforced concrete precast slabs according to claim 1 or 2, characterized in that: The side molds, bottom molds, and pressure bars of the test mold all have high rigidity and very little deformation after being subjected to force.

Images