A hollow floor system concrete grouting reinforcement system tool

Abstract

The utility model discloses a tool for a hollow floor system concrete grouting reinforcement system, including a grouting machine, a template system and a support system. The upper surface of the template system is a plane, the upper side of the template system and the lower surface of the hollow floor are in the same plane, a through hole is vertically arranged in the middle of the template system, a fixed pipe is arranged at the through hole position to pass through the through hole to connect the gap position between the hollow floor and the template system and the space outside the template system, the working end of the grouting machine is connected to the fixed pipe, the support system is arranged between the bottom surface of the template system and the ground, the support system is vertically arranged and the support system is adjustable in the vertical direction, the support point of the support system on the bottom surface of the template system is symmetrical with the through hole axis as the symmetrical midpoint, and the fastening point of the fixed pipe on the top surface of the template system is evenly arranged with the fixed pipe axis as the center. The utility model can solve various types, size and quality defects of hollow floors by adjusting the size of the bottom template, and has very good applicability.

Description

Technical Field

[0001] The utility model relates to the field of construction, in particular to a tool for a concrete grouting reinforcement system of a hollow floor system. Background Art

[0002] In the actual construction process of hollow floor systems, due to the influence of factors such as the small thickness of the bottom concrete, the interference of the reserved pipelines for mechanical and electrical installation, the large particle size of the concrete coarse aggregate, and the improper concrete pouring and vibration method, the problem of local hollowing at the bottom of the floor slab has gradually become a difficult problem in the industry. Local hollowing not only affects the overall strength and stability of the floor slab, but also may pose a potential threat to the safety of the building.

[0003] The publication number is CN116397925A, a method for repairing quality defects of concrete hollow floor slabs, belonging to the field of civil engineering. The method is mainly used to deal with the quality defects of the concrete of the lower slab of the hollow floor slab. The treatment method is: from the bottom of the lower slab of the hollow floor slab, a grouting machine is connected to the grouting pipe, and a high-strength, self-compacting grouting material is poured into the grouting material at high pressure. When the grouting material flows out from the exhaust pipe, the method of repairing the quality defects of the concrete of the lower slab of the hollow floor slab is achieved. On the one hand, this method can ensure that the quality repair of the concrete of the lower slab of the hollow floor slab meets the quality requirements. On the other hand, it can solve the disadvantage of not being able to pour concrete from the upper part of the hollow floor slab, and can also solve the problem of insufficient strength and insufficient density caused by smearing mortar and other materials from the lower slab of the hollow floor slab. The present invention can repair the quality defects of the concrete of the lower slab of the hollow floor slab in the most economical and least destructive way.

[0004] This technical solution can repair the bottom of the concrete slab, and is only applicable to hidden quality defects at the bottom of the mold box, but not to quality defects such as large holes and missing reinforcement. The materials such as the grouting pipe and exhaust pipe of this patent cannot be reused.

[0005] A hollow floor system concrete grouting reinforcement system tool is now needed to solve the above problems. Utility Model Content

[0006] The utility model is to solve the problem that the traditional method in the prior art is only applicable to the hidden quality defects at the bottom of the mold box, but is not applicable to quality defects such as large holes and missing reinforcement. The patented grouting pipe, exhaust pipe and other materials cannot be reused. The utility model provides a hollow floor system concrete grouting reinforcement system tool to solve the problems of the prior art.

[0007] The utility model provides a tool for a hollow floor system concrete grouting reinforcement system, comprising a grouting machine, a template system and a support system, wherein the template system is arranged on the lower surface of the exposed structure position of the hollow floor, the upper surface of the template system is a plane, the upper edge surface of the template system and the lower surface of the hollow floor are in the same plane, a through hole is vertically arranged in the middle of the template system, a fixed pipe is arranged at the through hole position to pass through the through hole to connect the gap position between the hollow floor and the template system and the space outside the template system, the working end of the grouting machine is connected to the fixed pipe, the support system is arranged between the bottom surface of the template system and the ground, the support system is vertically arranged and the support system is adjustable in the vertical direction, the support point of the support system on the bottom surface of the template system is symmetrical with the axis of the through hole as the symmetrical midpoint, the fixed pipe is fixed on the top surface of the template system, and the fastening points of the fixed pipe on the top surface of the template system are evenly arranged with the axis of the fixed pipe as the center.

[0008] The utility model discloses a hollow floor system concrete grouting reinforcement system tool, as a preferred embodiment, the formwork system includes a plate body, grouting holes, a fixed pipe and a plurality of contact pads, the plate body is a plate structure with upper and lower surfaces being planes, the grouting holes are arranged in the middle of the plate body, the axis of the grouting holes is perpendicular to the plate surface of the plate body, the top surface of the contact pad contacts the bottom of the plate body, the fixed pipe passes through the grouting holes, the top of the fixed pipe is an unfolded structure, the unfolded structure of the fixed pipe is fixed to the top surface of the plate body, the unfolded structure of the fixed pipe is a symmetrical structure on the plane of the top surface of the plate body, the symmetrical structure has at least two symmetry lines, and at least two symmetry lines are perpendicular to each other in the plane of the top surface of the plate body.

[0009] The utility model describes a hollow floor system concrete grouting reinforcement system tool, as a preferred embodiment, a grouting machine includes a grouting machine body and a pumping pipe, one end of the pumping pipe is connected to the output end of the grouting machine body, and the other end is connected to the lower end of the fixed pipe, the inner diameter of the pumping pipe is greater than or equal to the outer diameter of the fixed pipe, the grouting machine body is set on the ground, and the contact position of the pumping pipe and the fixed pipe is radially fixedly connected through a circumferential binding device.

[0010] The utility model describes a hollow floor system concrete grouting reinforcement system tool, as a preferred embodiment, the support system includes a contact top support, a fixed rod and a lifting rod, the contact top support is arranged at the top of the lifting rod, the lifting rod and the fixed rod are vertically connected, the bottom end of the fixed rod is fixedly arranged on the ground, the bottom end of the lifting rod is nested in the top end of the fixed rod, the relative position between the fixed rod and the lifting rod is fixed, and the top surface of the contact top support is provided with a recessed matching contact pad.

[0011] The utility model discloses a hollow floor system concrete grouting reinforcement system tool, as a preferred embodiment, an observation hole is also arranged on the plate body.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) By adjusting the size of the bottom formwork, various types, sizes and quality defects of hollow floor slabs can be solved, which has very good applicability;

[0014] (2) The grouting tool uses a traditional formwork support system and a plastic hose, which makes the tool easy to make and the grouting process simple;

[0015] (3) The grouting tools can be reused multiple times;

[0016] (4) The device uses a fixed pipe installation method with a radially symmetrical structure to make the sealing and stability of the pipe contact position more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a tool for a concrete grouting reinforcement system for a hollow floor system;

[0018] Figure 2 It is a schematic diagram of a tool template system for a hollow floor system concrete grouting reinforcement system;

[0019] Figure 3 It is a schematic diagram of a grouting machine for a hollow floor system concrete grouting reinforcement system tool;

[0020] Figure 4 It is a schematic diagram of a tool support system for a hollow floor system concrete grouting reinforcement system.

[0021] Reference numerals:

[0022] 1. Grouting machine; 11. Grouting machine body; 12. Pumping pipe; 2. Formwork system; 21. Plate body; 22. Grouting hole; 23. Fixing pipe; 24. Contact pad; 3. Support system; 31. Contact support; 32. Fixing rod; 33. Lifting rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1

[0025] like Figures 1-2As shown, a tool for concrete grouting reinforcement system of hollow floor system comprises a grouting machine 1, a formwork system 2 and a support system 3, wherein the formwork system 2 is arranged on the lower surface of the exposed structure position of the hollow floor, the upper surface of the formwork system 2 is a plane, the upper side surface of the formwork system 2 and the lower surface of the hollow floor are in the same plane, a through hole is vertically arranged in the middle of the formwork system 2, a fixed pipe is arranged at the through hole position to pass through the through hole to connect the gap position between the hollow floor and the formwork system 2 and the space outside the formwork system 2, the working end of the grouting machine 1 is connected to the fixed pipe, the support system 3 is arranged between the bottom surface of the formwork system 2 and the ground, the support system 3 is vertically arranged and the support system 3 is adjustable in the vertical direction, the support point of the support system 3 on the bottom surface of the formwork system 2 is symmetrical with the axis of the through hole as the symmetrical midpoint, the fixed pipe 23 is fixed on the top surface of the formwork system 2, and the fastening points of the fixed pipe on the top surface of the formwork system 2 are evenly arranged with the axis of the fixed pipe as the center.

[0026] like Figure 2 As shown, the formwork system 2 includes a plate body 21, grouting holes 22, a fixed pipe 23 and a plurality of contact pads 24. The plate body 21 is a plate structure with planar upper and lower surfaces. The grouting holes 22 are arranged in the middle of the plate body 21, the axis of the grouting holes 22 is perpendicular to the plate surface of the plate body 21, the top surface of the contact pad 24 contacts the bottom of the plate body 21, the fixed pipe 23 passes through the grouting holes 22, the top of the fixed pipe 23 is an unfolded structure, the unfolded structure of the fixed pipe 23 is fixed to the top surface of the plate body 21, the unfolded structure of the fixed pipe 23 is a symmetrical structure on the top surface plane of the plate body 21, the symmetrical structure has at least two symmetry lines, and at least two symmetry lines are perpendicular to each other in the top surface plane of the plate body 21.

[0027] like Figure 3 As shown, the grouting machine 1 includes a grouting machine body 11 and a pumping pipe 12, one end of the pumping pipe 12 is connected to the output end of the grouting machine body 11, and the other end is connected to the lower end of the fixed pipe 23, the inner diameter of the pumping pipe 12 is greater than or equal to the outer diameter of the fixed pipe 23, the grouting machine body 11 is set on the ground, and the contact position of the pumping pipe 12 and the fixed pipe 23 is radially fixedly connected through a circumferential binding device.

[0028] like Figure 4 As shown, the support system 3 includes a contact support 31, a fixed rod 32 and a lifting rod 33. The contact support 31 is arranged at the top of the lifting rod 33. The lifting rod 33 and the fixed rod 32 are vertically connected. The bottom end of the fixed rod 32 is fixedly set on the ground. The bottom end of the lifting rod 33 is nested in the top of the fixed rod 32. The relative positions between the fixed rod 32 and the lifting rod 33 are fixed. The top surface of the contact support 31 is provided with a recessed mating contact pad 24.

[0029] Specifically, the contact pad 24 in this embodiment is made of wood.

[0030] Furthermore, the method of using the device is:

[0031] 1. Installation of formwork support system

[0032] (1) Site preparation. Clean the construction site and ensure that the work area is clean and free of debris to facilitate subsequent installation work.

[0033] (2) Measurement and positioning. Use measurement tools to determine the exact position and size of the formwork support system based on the actual location of the holes on site.

[0034] (3) Install the wood and steel pipes. According to the hole size measured on site, take the larger size to cut the supporting formwork system to improve the turnover rate of the formwork. After the formwork is cut, fix the 40*80 wood to the formwork with iron nails at both ends according to the size of the formwork, and then install the formwork and wood as a whole.

[0035] (4) Install the steel pipe uprights and adjustable top supports: First, insert the adjustable top supports into the steel pipe uprights, adjust their overall height as needed, and tighten the top supports firmly to ensure the flatness and stability of the formwork.

[0036] 2. Grouting machine mechanical preparation

[0037] (1) Grouting machine inspection. Check whether all functions of the grouting machine are normal, including the grouting pump, pressure gauge, control system, etc.

[0038] (2) Grouting pipe connection: Connect the grouting pipe to the grouting machine and ensure that the connection is firm and leak-free.

[0039] (3) Test run: Carry out a test run of the grouting machine, observe its working status, and ensure that it can operate stably during the grouting process.

[0040] 3. Grout mixing

[0041] (1) Material preparation: Prepare grouting materials and water according to design requirements to ensure that the material quality is qualified.

[0042] (2) Mixing operation: Add grouting material and water into the mixing equipment according to the specified ratio and mix thoroughly until the grouting material reaches a uniform and particle-free state. The recommended water addition amount for mixing prestressed pipe grouting material is 22% to 26%. First, add 80% to 90% of the actual mixing water into the mixer, start the mixer, evenly add all the powder, stir for 2 minutes, and then add the remaining 10% to 20% of the mixing water and stir evenly.

[0043] 4. Grouting

[0044] (1) Inspection before grouting. Check whether the connection between the grouting pipe and the hose is tight, check whether the hose is tightly connected to the formwork, and check whether the formwork support system is stable.

[0045] (2) Grouting operation. When preparing for grouting, turn on the grouting pump. When the fluidity of the discharged slurry is consistent with the fluidity in the mixing tank, grouting can be started. The maximum pressure of grouting should generally not exceed 0.6MPa. Grouting should be completed until the other end of the pipe is full and slurry is discharged, and the slurry with the same fluidity as specified should be discharged from the exhaust hole. After closing the slurry outlet, a stable period of not less than 0.5MPa should be maintained, and the stable pressure period should not be less than 5min. When performing pressure grouting, let the water-slurry suspension in the pipe flow freely from the outlet end, and pump the slurry again until a homogeneous slurry flows out from the outlet end. After grouting, it should be decided whether to fill it up according to the density of the discharged slurry, and the grouting hole must be completely dense. During grouting and within 3 days after grouting, the floor slab and environmental temperature shall not be lower than 5℃, and the slurry temperature shall be between 5℃ and 30℃. Otherwise, measures should be taken to meet the requirements. Construction is not suitable under high temperature conditions (above 35℃). It is prohibited to add extra water during construction due to insufficient fluidity.

[0046] (3) Observation of grouting filling degree. Observe the filling degree of the slurry in the hole through the observation hole. Make sure that the observation hole is blocked in time if there is slurry overflowing to prevent continuous overflow of the slurry. At the same time, turn off the grouting machine and stop grouting. After stopping grouting, bend the grouting snake hose as soon as possible and tie it firmly with wire to prevent leakage.

[0047] 5. Dismantle the formwork support system

[0048] (1) Confirm the grouting effect. Before removing the formwork support system, check the grouting effect to ensure that the concrete pores are completely filled and well cured.

[0049] (2) Remove the adjustable top support and formwork. First remove the adjustable top support, then remove the 15mm plywood formwork and 40×80 wooden squares in turn.

[0050] (3) Clean up the site. After the demolition is completed, clean up the construction site and remove the discarded materials and tools.

[0051] Furthermore, the grouting material in this embodiment is the core material in the concrete hole defect reinforcement grouting system tool, and its performance is directly related to the grouting effect and reinforcement quality. The grouting material is a specially designed high-performance material used for the reinforcement grouting of concrete hole defects. It has good fluidity, adhesion, strength and durability to meet the reinforcement needs of various complex hole defects. It has the following characteristics:

[0052] 1) High fluidity: The grouting material has excellent fluidity and can easily penetrate into the holes and defects of concrete to ensure full filling and compaction.

[0053] 2) Strong bonding: Good bonding is formed between the grouting material and the concrete substrate, ensuring a firm connection between the reinforcement layer and the original structure.

[0054] 3) Rapid solidification: The grouting material can solidify quickly after grouting, shortening the construction period and improving project efficiency.

[0055] 4) High strength: The cured grouting material has excellent compressive, tensile and shear strength, effectively enhancing the bearing capacity of the concrete structure.

[0056] 5) Strong durability: The grouting material has good resistance to chemical corrosion, freeze-thaw cycles and aging, ensuring that the reinforced concrete structure has long-term stable performance.

[0057] 6) Environmental protection and safety: The grouting material does not produce any harmful substances during the preparation and use process, meets environmental protection standards, and is safe and harmless to the human body.

[0058] The grouting material used in this project is AJ pre-pressed channel grouting material, which is composed of high-grade cement and a variety of inorganic and organic materials. It is suitable for leak-proof grouting, curtain grouting, anchor grouting, gap filling or repair at various concrete structure joints. Its technical performance parameters are as follows:

[0059]

[0060]

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hollow floor system concrete grouting reinforcement system tool, characterized by: The invention comprises a grouting machine (1), a template system (2) and a support system (3), wherein the template system (2) is arranged on the lower surface of the exposed structure position of the hollow floor slab, the upper surface of the template system (2) is a plane, the upper edge surface of the template system (2) and the lower surface of the hollow floor slab are in the same plane, a through hole is vertically arranged in the middle of the template system (2), and a fixed pipe is arranged at the position of the through hole to pass through the through hole to connect the gap position between the hollow floor slab and the template system (2) and the space outside the template system (2), and the grouting machine (1) The working end is connected to the fixed tube, the support system (3) is arranged between the bottom surface of the template system (2) and the ground, the support system (3) is arranged vertically and the support system (3) is adjustable in the vertical direction, the support points of the support system (3) on the bottom surface of the template system (2) are symmetrical with the axis of the through hole as the symmetrical midpoint, the fixed tube (23) is fixed on the top surface of the template system (2), and the fastening points of the fixed tube on the top surface of the template system (2) are evenly arranged with the axis of the fixed tube as the center.

2. A hollow floor system concrete grouting reinforcement system tool according to claim 1, characterized in that: The formwork system (2) comprises a plate body (21), a grouting hole (22), a fixing pipe (23) and a plurality of contact pads (24); the plate body (21) is a plate structure with upper and lower surfaces being planes; the grouting hole (22) is arranged in the middle of the plate body (21); the axis of the grouting hole (22) is perpendicular to the plate surface of the plate body (21); the top surface of the contact pad (24) contacts the bottom of the plate body (21); the fixing pipe (23) passes through the grouting hole (22); the top of the fixing pipe (23) is an unfolded structure; the unfolded structure of the fixing pipe (23) is fixed to the top surface of the plate body (21); the unfolded structure of the fixing pipe (23) is a symmetrical structure on the plane of the top surface of the plate body (21); the symmetrical structure has at least two symmetry lines; And at least two of the symmetry lines are perpendicular to each other in the plane of the top surface of the plate body (21).

3. A hollow floor system concrete grouting reinforcement system tool according to claim 2, characterized in that: The grouting machine (1) comprises a grouting machine body (11) and a pumping pipe (12); one end of the pumping pipe (12) is connected to the output end of the grouting machine body (11), and the other end is connected to the lower end of the fixed pipe (23); the inner diameter of the pumping pipe (12) is greater than or equal to the outer diameter of the fixed pipe (23); the grouting machine body (11) is arranged on the ground; the contact position of the pumping pipe (12) and the fixed pipe (23) is fixedly connected in the radial direction by a circumferential binding device.

4. A hollow floor system concrete grouting reinforcement system tool according to claim 2, characterized in that: The support system (3) comprises a contact support (31), a fixed rod (32) and a lifting rod (33); the contact support (31) is arranged at the top of the lifting rod (33); the lifting rod (33) and the fixed rod (32) are vertically connected; the bottom end of the fixed rod (32) is fixedly arranged on the ground; the bottom end of the lifting rod (33) is nested in the top end of the fixed rod (32); the relative positions between the fixed rod (32) and the lifting rod (33) are fixed; and the top surface of the contact support (31) is provided with a recess for mating and contacting the contact pad (24).

Images