Carborundum concrete solidified terrace structure and construction method thereof

Abstract

The invention relates to the technical field of building construction, and discloses a carborundum concrete solidified terrace structure and a construction method thereof. A wall edge and a column foot which are in contact with the terrace structure are surrounded by extruded sheets; the terrace structure comprises a parking area and a driving area; each of the parking area and the driving area comprises a concave-convex drainage plate, a non-woven fabric, a fine aggregate concrete layer, a carborundum layer and a curing layer which are sequentially arranged on the bottom plate from bottom to top; the parking area and the driving area have color subareas; the face, provided with the protruding blocks, of the concave-convex drainage plate faces downwards, and a drainage channel is formed between every two adjacent protruding blocks. The drainage channel is communicated with the sump; exhaust holes penetrating through the floor structure are formed in the transverse and longitudinal joints of the concave-convex drainage plates. The principle of'dredging 'is adopted, and seepage water of the bottom plate is drained by arranging the concave-convex drainage plate; and the exhaust hole penetrating through the floor structure is arranged and used for balancing the pressure of the drainage channel, so that accumulated water can be smoothly drained. The construction method is simple and good in hydrophobic effect.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a corundum concrete solidified floor structure and a construction method thereof. Background Art

[0002] In order to solve the adverse effects caused by basement floor leakage, we adhere to the idea of ​​"draining" the hidden dangers of basement water, and adopt a complete floor construction method that is easy to operate, reliable in quality, and economical.

[0003] The Chinese utility model patent with application number 201921905598.3 discloses a parking lot textured floor, including a water filter layer, a drainage ditch formwork, a permeable layer, a fine stone concrete layer, a corundum wear-resistant layer, an epoxy primer, an epoxy mid-coat, a tensile layer, an orange-grain paint surface layer and an indicator tape. The design of the orange-grain paint surface layer and the corundum wear-resistant layer is conducive to improving the friction of the floor surface, avoiding the phenomenon of slipping when the car is driving or walking, which is conducive to the use of the floor and improves the use effect of the floor in the parking lot; and the design of the drainage ditch formwork is conducive to the rapid removal of accumulated water and avoids the problem of accumulated water. However, there are still the following defects: there is an air pressure difference between the drainage layer and the outside, which affects the flow of accumulated water; the concrete will cause surface cracking and internal hollowing due to limited shrinkage and movement, which affects the molding and durability. Based on the above defects, there is a need for a floor structure and construction method that can effectively achieve water repellency and reduce the probability of cracking on the concrete surface and cracks caused by internal hollowing. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a diamond abrasive concrete solidified floor structure and a construction method thereof, which can effectively achieve hydrophobicity and reduce the probability of cracking on the concrete surface and cracks caused by internal hollowing. The construction method is simple and is conducive to implementation and promotion.

[0005] In order to achieve the above objectives, the technical solution adopted by the present invention is:

[0006] The emery concrete solidified floor structure, the wall sides and column bases in contact with the floor structure are surrounded by extruded boards; the floor structure includes a parking area and a driving area; the parking area and the driving area both include a concave-convex drainage board, a non-woven fabric, a fine stone concrete layer, a emery layer and a solidified layer arranged on the bottom plate in sequence from bottom to top; the parking area and the driving area are divided by color; the concave-convex drainage board has a side with protrusions facing downward, and a drainage channel is formed between two adjacent protrusions; the drainage channel is connected to a sump; an exhaust hole that penetrates the floor structure is arranged at the intersection of the transverse and longitudinal directions of the concave-convex drainage board.

[0007] As a preferred embodiment, steel fibers are mixed into the fine stone concrete layer.

[0008] As a preferred implementation scheme, a steel mesh is provided in the fine stone concrete layer, and the steel mesh is located at 3 / 4 of the thickness of the floor structure.

[0009] As a preferred implementation scheme, the width of the non-woven fabric is greater than the width of the concave-convex drainage board.

[0010] The construction method of the diamond sand concrete solidified floor structure, wherein the parking area and the driving area are divided into multiple areas, and the skipping method is used for construction, comprising the following steps:

[0011] Step 1: Set up extruded panels to surround the wall and column base;

[0012] Step 2: laying a concave-convex drainage board and a non-woven fabric on the bottom plate in sequence; and opening an exhaust hole at the intersection of the concave-convex drainage board in the horizontal and vertical directions;

[0013] Step 3: Lay the fine stone concrete layer, corundum layer and curing layer in sequence.

[0014] As a preferred implementation scheme, a steel mesh is laid before pouring the fine stone concrete, the steel mesh is fully tied, and the steel mesh is located at 3 / 4 of the thickness of the floor structure.

[0015] As a preferred implementation scheme, the steps of laying the corundum layer are as follows: spreading the corundum mixture and smoothing it for the first time; spreading the corundum mixture and smoothing it for the second time; and maintaining and cutting the corundum layer.

[0016] As a preferred implementation scheme, the parking area and the driving area are provided with formwork according to the compartment plane and the construction sequence before pouring, and the first pouring area extends 25 mm more toward the later pouring area.

[0017] Beneficial effects of the present invention:

[0018] (1) The present application adopts the idea of ​​"drainage" as the main method, and the accumulated water is discharged by setting up a concave-convex drainage board; and exhaust holes that penetrate the floor structure are set at the horizontal and vertical intersections of the concave-convex drainage board to balance the pressure of the drainage channel so that the accumulated water can be discharged smoothly.

[0019] (2) Extruded panels are installed between the floor structure and the walls and column bases to create a certain expansion and contraction space for the concrete and avoid the formation of cracks.

[0020] (3) A corundum layer and a curing layer are set on the fine stone concrete layer. After overall curing, they form a dense, integrated, super-hardened surface layer with the concrete floor, which is anti-penetration, anti-compression, anti-weathering, high-wear-resistant, oil-proof, anti-fouling, fire-proof, noise-reducing, dust-free and environmentally friendly. The construction of the surface curing agent effectively prevents the rapid evaporation of moisture on the concrete floor after the corundum wear-resistant aggregate is spread, avoiding the problem of color difference and cracking on the floor surface.

[0021] (4) Divide the parking area and driving area, and carry out construction in different areas to improve construction efficiency; use different colors of diamond abrasive layers for sealing, which will facilitate the marking of parking spaces and sidewalks in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural cross-sectional view of the present invention;

[0023] Figure 2 For the present invention Figure 1 A partial enlarged view of

[0024] Figure 3 It is a schematic diagram of the position of the exhaust hole of the present invention;

[0025] Figure 4 It is a construction flow chart of the present invention.

[0026] In the figure: 1. extruded board; 2. concave-convex drainage board; 3. non-woven fabric; 4. fine stone concrete layer; 5. corundum layer; 6. solidification layer; 7. exhaust hole; 8. drainage channel; 9. steel fiber; 10. steel mesh. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0028] Example 1

[0029] like Figure 1-Figure 3As shown, this embodiment improves a corundum concrete solidified floor structure, and the wall sides and column bases in contact with the floor structure are surrounded by extruded boards 1; the floor structure includes a parking area and a driving area; the parking area and the driving area both include a concave-convex drainage board 2, a non-woven fabric 3, a fine stone concrete layer 4, a corundum layer 5 and a solidified layer 6 arranged on the bottom plate from bottom to top; the parking area and the driving area are divided by color; the concave-convex drainage board 2 has a side with a protrusion facing downward, and a drainage channel 8 is formed between two adjacent protrusions; the drainage channel 8 is connected to the sump; the concave-convex drainage board 2 is provided with an exhaust hole 7 that penetrates the floor structure at the intersection of the transverse and longitudinal directions.

[0030] The diamond sand concrete solidified floor structure, an extruded plate 1 is arranged between the floor structure and the wall and the column foot, forming a certain expansion and contraction space for the concrete, reducing the probability of cracking on the concrete surface; a drainage channel 8 is formed between the convex points of the concave-convex drainage board 2 with the convex surface downward, and the flowing water is uniformly collected by draining to the sump through the drainage, and the collected water in the sump is pumped out by the pumping equipment in the later stage for discharge. An exhaust hole 7 that runs through the floor structure is arranged at the horizontal and vertical intersection of the concave-convex drainage board 2, which is used to balance the pressure of the drainage channel 8 so that the accumulated water can be discharged smoothly. The present invention arranges a diamond sand layer 5 and a solidifying layer 6 on the fine stone concrete layer 4, and after overall solidification, forms a dense integral, super-hardened surface layer with the concrete floor, which has anti-penetration, compression resistance, weathering resistance, high wear resistance, oil-proof, anti-fouling, fire-proof, noise-reducing, dust-free and environmentally friendly floor. The solidifying layer 6 of the surface layer effectively prevents the rapid evaporation of water on the concrete floor after the diamond sand wear-resistant aggregate is spread, avoiding the problem of color difference and cracking on the floor surface. The floor structure is divided into a parking area and a driving area, and construction is carried out in different areas to improve construction efficiency. By laying different colored diamond abrasive layers 5, the parking area and the driving area are divided into color areas, and then sealed with a curing agent, it is convenient for the later marking of parking spaces, driving lanes and sidewalks.

[0031] Example 2

[0032] like Figure 1-Figure 3 As shown, this embodiment is developed on the basis of the above-mentioned embodiment. Specifically, this embodiment provides a diamond sand concrete solidified floor structure, wherein the fine stone concrete layer 4 is mixed with steel fiber 9. In order to solve the transmission and distribution of stress of concrete itself and prevent the continuation and expansion of tiny cracks inside concrete, steel fiber 9 is mixed into the floor concrete. Through the high tensile strength of steel fiber 9 itself, the steel fibers 9 which are randomly distributed can fully play a significant role in hindering the expansion of micro cracks inside concrete and the formation of macro cracks, which greatly improves the tensile, bending, impact and fatigue resistance of concrete, and has good ductility and adhesion of concrete.

[0033] As a preferred implementation scheme, a steel mesh 10 is provided in the fine stone concrete layer 4, and the steel mesh 10 is located at 3 / 4 of the thickness of the floor structure. The steel mesh 10 can play a better anti-cracking and anti-sinking effect; the floor structure steel mesh 10 is preferably formed by binding a single-layer bidirectional φ6.5@200 steel bar to form the steel mesh 10, and reinforcement measures are taken at the drainage board part of the carriageway area and the part where the lane and the floor are connected, and the spacing is set according to a single-layer bidirectional φ6.5@100.

[0034] As a preferred embodiment, the width of the non-woven fabric 3 is greater than the width of the concave-convex drainage board 2. The non-woven fabric 3 has good isolation and anti-corrosion functions, is wider than the drainage board and is fixed, and has a good isolation effect on the drainage board.

[0035] Example 3

[0036] like Figure 1-Figure 4 As shown, this embodiment is developed on the basis of the above embodiment. Specifically, this embodiment provides a construction method of a diamond sand concrete solidified floor structure, wherein the parking area and the driving area are divided into multiple areas, and the skipping method is used for construction, including the following steps:

[0037] Step 1: Set the extruded board 1 to surround the wall and the column foot; before the floor structure is constructed, the base needs to be cleaned to thoroughly remove the adhering slurry and debris. Before pouring the fine stone concrete leveling layer, soak it in water for full maintenance within 24 hours. As a better implementation scheme, the parking area and the driving area are supported by the template according to the compartment plane and the construction sequence before pouring, and the first pouring area extends 25mm more to the later pouring area. During construction, the side formwork is supported. The main function of the side formwork support is to determine the elevation, color separation compartment support, and construction joint support. While supporting the side formwork, the elevation control should be strictly controlled. Use a level to adjust the elevation of the upper surface of the template to make it consistent with the floor elevation. It is required to set the laser transmitter according to the given floor elevation. The thickness of the diamond abrasive surface layer and the slope problem should be considered during setting, and the laser receiver of the leveling machine should be installed; pay attention to the placement of the laser transmitter to avoid the situation where the laser cannot be received due to obstruction. In the case of a large depth, reset the laser transmitter after the construction exceeds 90 meters to reduce the error. Do a good job of checking the template elevation to reduce the error of manual edge finishing during concrete pouring. The error should be controlled within 3m / ±1mm. The wall and column base are preferably isolated and surrounded by 10mm thick extruded board 1, so that the concrete slab can move freely when it shrinks, effectively preventing the floor from hollowing and cracking, and reducing the probability of cracking on the concrete surface and cracks caused by internal hollowing.

[0038] Step 2: Lay the concave-convex drainage board 2 and the non-woven fabric 3 on the base plate in sequence; and open the exhaust hole 7 at the intersection of the horizontal and vertical directions of the concave-convex drainage board 2; when laying the concave-convex drainage board 2, pre-arrange the board first. In principle, except for irregular parts, the drainage board layout should use the whole board as much as possible, and the panel less than 1 / 3 should be prevented from appearing, and the panel should be arranged symmetrically along the center line. The layout of the drainage board follows the principle of proximity and is connected to the nearest sump. Then, the debris and template scraps on the surface of the base layer are cleaned up. If there are leakage cracks, high-pressure grouting is used to seal the leakage. After checking that there is no obvious leakage, cement mortar is used for leveling. When laying the concave-convex drainage board 2, the convex surface is downward, and the long side overlaps: overlap at least 2 fulcrums; wide side overlaps: overlap 1 to 2 fulcrums or two boards collide. The same continuous area is laid from one side to the other. If irregular seams appear due to the irregular surface, sandwich plastic molding boards of corresponding shapes can be cut and laid against each other and fixed separately, and the seams are sealed with non-woven fabric 3. Vent holes 7 are provided at the intersection of the horizontal and vertical directions of the concave-convex drainage board 2 to balance the pressure of the drainage channel 8 so that the accumulated water can be discharged smoothly.

[0039] Step 3: Lay the fine stone concrete layer 4, the corundum layer 5 and the curing layer 6 in sequence. As a preferred implementation scheme, the steps for laying the corundum layer 5 are as follows: the corundum mixture is spread and smoothed for the first time; after the concrete is poured, before the concrete is initially set, the construction personnel use the trowel disc to slowly apply slurry to the surface. The function of slurry is to completely combine the hardener material with the concrete. The corundum layer 5 is cured and cut. When the worker steps on the concrete and sinks about 5mm, the first spreading of the corundum mixture can be started. The first spreading material is spread mechanically and manually. The first spreading amount is about 2 / 3 of the total feeding amount per unit area. The aggregate should fall evenly and cannot be thrown hard to separate. After spreading, it is smoothed with a wooden trowel to allow the aggregate to absorb a certain amount of moisture. When spreading, it is necessary to pay attention to increasing the amount of material at the mold edge and the cut seam, and strengthening the corners. After the diamond sand absorbs water and darkens on the concrete surface, use the disc of a single-disc or riding double-disc heavy-duty grinder to grind and rub the concrete, and then scrape and adjust. Combine the aggregate with the concrete base soil slurry. For corners and other parts that cannot be smoothed by machinery, use manual smoothing, and do not apply excessive smoothing. Spread the diamond sand mixture and smooth and polish for the second time; after the wear-resistant material hardens to a certain stage (about 2 hours in high temperature weather in summer, and appropriately extended in winter according to the site conditions), follow the previous process. Spread the remaining 1 / 3 of the wear-resistant material. The direction of spreading the wear-resistant aggregate is perpendicular to the first spreading direction. First use a ruler to measure the horizontality, and adjust the uneven places of the first spreading, and speed up the spreading of the parts that lose water faster. Use the same method to smooth. After the second layer of wear-resistant material absorbs a certain amount of water, it is ground again with a double-disc grinder; each stage is generally ground more than 2 times, and the time interval during the period depends on the hardening of the concrete. The grinding machine should be staggered vertically and horizontally, evenly and orderly to prevent material aggregation, and the corners should be handled with a wooden trowel. After the surface layer begins to set and shrink, the final fine smearing is carried out. When the surface material hardens to the point where it sinks slightly when pressed by fingers, the speed and angle of the grinder should be adjusted according to the hardening situation. The grinder should be operated in a criss-cross pattern more than three times.

[0040] After the diamond abrasive layer 5 is laid, the seams are cut and maintained. In this embodiment, the concrete road cutter is preferably used to cut within 24 hours after the surface is polished by sprinkling water and cutting, so as to guide the crack direction as early as possible. Sprinkle water immediately after the cutting is completed, and use a dust pusher to spread the clean water evenly, and then lay a film for maintenance. After the laying and maintenance work is completed, safety isolation needs to be done well. No one is allowed to enter or exit the laying area for maintenance work. Within 7 days after the maintenance construction is completed, you can travel (only light travel), and heavy-duty construction can be carried out after 28 days. After the entire ground is completed, the caulking operation can be carried out. The seam width is not less than 5㎜. Use neutral building sealing paste to fill the seam or asphalt. Natural maintenance for 28 days, the warehouse seam width is 20mm, and the surface layer is embedded with waterproof ointment.

[0041] (1) The cut joints need to be cleaned with a brush or a cleaning vehicle, and must be filled with a neutral building sealant or sealed tightly with asphalt.

[0042] (2) Use paper tape to bond both sides of the cut surface together to form a straight protective edge band to prevent the floor at the edge of the seam from being contaminated when filling the glue. In addition, it can ensure that the seam edge remains straight and has no jagged edges after filling, making the filling more beautiful.

[0043] After the wear-resistant floor is finished and the moisture on the floor is completely evaporated (when the theoretical moisture content is below 8%, sprinkle water and felt for 28 days of curing), the penetration type sealing and curing agent can be applied. The construction process of concrete sealing and curing agent: base cleaning - coarse grinding - sealing and curing - fine grinding - fine grinding - polishing. Different colors of emery are used for parking areas and driving areas to naturally divide the areas, which is convenient for later marking. It is worth mentioning that during the pouring of the upper fine stone concrete layer 4, the drainage board where the trolley is needed is protected by covering it with waste wood boards to prevent damage to the drainage board and non-woven fabric 3.

[0044] As a preferred implementation scheme, a steel mesh 10 is laid before pouring the fine stone concrete. The steel mesh 10 is fully tied and located at 3 / 4 of the thickness of the floor structure. In this embodiment, the steel mesh 10 uses a single-layer bidirectional φ6.5@200 steel bar, which is fully tied and set in the upper middle part of the floor, that is, 3 / 4 of the floor thickness. The bottom is padded with concrete pads to better achieve anti-cracking and anti-sinking effects (the steel mesh 10 can be disconnected at the shrinkage joint). The steel mesh 10 adopts reinforcement measures for the steel spacing at the drainage board part of the carriageway area and the part where the lane and the floor are connected. The spacing is set according to a single-layer bidirectional φ6.5@100.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Diamond sand concrete solidified floor structure, characterized by: The wall side and column base in contact with the floor structure are surrounded by an extruded board (1); the floor structure includes a parking area and a driving area; the parking area and the driving area both include a concave-convex drainage board (2), a non-woven fabric (3), a fine stone concrete layer (4), a corundum layer (5) and a curing layer (6) arranged on the bottom plate in sequence from bottom to top; the parking area and the driving area are divided by color; the concave-convex drainage board (2) has a side with a protrusion facing downward, and a drainage channel (8) is formed between two adjacent protrusions; the drainage channel (8) is connected to a sump; and an exhaust hole (7) that penetrates the floor structure is arranged at the intersection of the transverse and longitudinal directions of the concave-convex drainage board (2).

2. The diamond sand concrete solidified floor structure according to claim 1, characterized in that: The fine stone concrete layer (4) is mixed with steel fibers (9).

3. The diamond sand concrete solidified floor structure according to claim 1, characterized in that: A steel mesh (10) is arranged in the fine stone concrete layer (4), and the steel mesh (10) is located at 3 / 4 of the thickness of the floor structure.

4. The diamond sand concrete solidified floor structure according to claim 1, characterized in that: The width of the non-woven fabric (3) is greater than the width of the concave-convex drainage board (2).

5. The construction method of the diamond sand concrete solidified floor structure according to any one of claims 1 to 4, characterized in that: The parking area and the driving area are divided into multiple areas, and the skipping method is used for construction, including the following steps: Step 1: Arrange the extruded board (1) to surround the wall and the column base; Step 2: laying a concave-convex drainage board (2) and a non-woven fabric (3) on the bottom plate in sequence; and providing an exhaust hole (7) at the intersection of the horizontal and vertical directions of the concave-convex drainage board (2); Step 3: Lay a fine stone concrete layer (4), a corundum layer (5) and a curing layer (6) in sequence.

6. The construction method of the diamond sand concrete solidified floor structure according to claim 5 is characterized by: A steel mesh (10) is laid before pouring the fine stone concrete, the steel mesh (10) is fully tied, and the steel mesh (10) is located at 3 / 4 of the thickness of the floor structure.

7. The construction method of the diamond sand concrete solidified floor structure according to claim 5, characterized in that: The steps of laying the corundum layer (5) are as follows: first spreading the corundum mixture and smoothing; second spreading the corundum mixture and smoothing and polishing; and curing and cutting the corundum layer (5).

8. The construction method of the diamond sand concrete solidified floor structure according to claim 5, characterized in that: Before pouring, the parking area and the driving area are set up with formwork according to the compartment plane and the construction sequence, and the first pouring area extends 25mm more to the later pouring area.

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