A construction method for ultra-large area corundum wear-resistant flooring based on armor-joint compartments

Abstract

A construction method for ultra-large area corundum wear-resistant flooring based on armored joints and compartments includes the following structure: foundation piles are spaced apart in the middle of the foundation beneath the floor, with pile caps and pre-installed reinforcing bars on the pile tops; a reinforced crushed stone cushion layer is laid on the foundation and pile tops; columns are installed on the floor corresponding to the pile positions, with reinforcing bars tied around the columns to form diamond-shaped column sleeves; armored joint strips are installed on the top of the floor in a grid pattern; a steel mesh is laid on the floor, with the ends of the reinforcing bars connected to the armored joint strips; a concrete structural layer is poured on the floor, incorporating steel fibers, with its top surface flush with the armored joint strips; a corundum wear-resistant surface layer is applied to the concrete surface, with the top layer being a penetrating curing agent layer. During construction, the bearing capacity is enhanced by the foundation piles and reinforced crushed stone cushion layer; shrinkage cracks are controlled by both the armored joint strips and the compartments; exposed steel fibers are repeatedly adsorbed using strong magnetic tools; and infrared laser leveling, multiple applications of corundum, and multi-layer grinding and polishing with curing agent effectively solve the technical problems of difficult crack control, low flatness accuracy, exposed steel fibers, and high subsequent maintenance costs in ultra-large area flooring.

Description

Technical Field

[0001] This invention belongs to the field of civil engineering construction technology, and specifically relates to a construction method for ultra-large area diamond abrasive wear-resistant flooring based on armored joint compartments. Background Technology

[0002] With the rapid development of industries such as new energy and high-end manufacturing, the construction quality control of ultra-large-area factory flooring with a floor area of ​​millions of square meters has become a core technical challenge in engineering construction. Taking a lithium battery production base of a certain project as an example, the production workshop has put forward extremely high requirements for the flatness, wear resistance, crack resistance, dust prevention and durability of the flooring.

[0003] Traditional methods for constructing corundum concrete flooring present several significant challenges when dealing with massive projects covering millions of square meters: First, crack control is difficult. Large concrete slabs generate substantial shrinkage stress during hardening. Traditional methods release this stress by creating expansion joints, but these joints are prone to defects such as chipped edges, broken corners, and irregular cracking, severely impacting the floor's performance and durability. Second, flatness is difficult to guarantee. Traditional manual leveling methods for large-area flooring have low precision, failing to meet the millimeter-level accuracy requirements for flatness and levelness demanded by high-end equipment installations. Third, workflow coordination is poor. Construction from pile foundations and subbase to surface layer involves multiple disciplines and work teams working simultaneously. Under traditional management models, these processes become disconnected, leading to inadequate base treatment, uncontrolled concrete mix proportions, and insufficient curing, resulting in quality issues. Fourth, exposed steel fibers are a significant problem. During finishing, steel fibers in steel fiber reinforced concrete flooring are easily exposed, affecting aesthetics and potentially causing injury to equipment or personnel, posing a safety hazard. Fifth, high maintenance costs: Traditional expansion joints require repair every few years due to the pressure from heavy equipment and vehicles, resulting in high maintenance costs throughout their entire life cycle.

[0004] There is currently no complete set of construction methods for ultra-large area diamond abrasive flooring with a capacity of millions of square meters, which makes it difficult to meet the requirements of modern large-scale factories for flooring projects that are "excellent in one go, long-lasting, and require little maintenance". Summary of the Invention

[0005] The purpose of this invention is to provide a construction method for ultra-large area diamond abrasive wear-resistant flooring based on armor-joint compartments, in order to solve the technical problems of difficult crack control, low flatness accuracy, exposed steel fibers, and high maintenance costs in the construction of ultra-large area flooring in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution.

[0007] A construction method for ultra-large area corundum wear-resistant flooring based on armor-joint compartments is disclosed. The ultra-large area corundum wear-resistant flooring includes a floor, a reinforcing mesh, a concrete structural layer, a corundum wear-resistant surface layer, and a curing agent layer. Ground piles are spaced apart in the foundation beneath the floor, with pile caps at the top of each pile. The pile caps are located within the floor. A reinforced crushed stone pad layer is laid on top of the foundation and ground piles, with reinforcing bars pre-installed at the top of the pile caps. Columns are installed on the floor corresponding to the ground pile positions. The reinforcing bars around the columns are tied together to form a rhombus shape. The floor has several armor strips on its top, arranged in a grid pattern. A steel mesh is laid on the floor, with the ends of the steel bars connected to the armor strips. A concrete structural layer is poured on the floor and wrapped around the steel mesh. The top surface of the concrete structural layer is flush with the top of the armor strips, and steel fibers are installed inside the concrete structural layer. A diamond abrasion wear-resistant surface layer is applied to the surface of the concrete structural layer, and a curing agent layer is sprayed onto the surface of the diamond abrasion wear-resistant surface layer, with the curing agent penetrating into the micropores on the surface of the diamond abrasion surface layer. Includes the following steps: Step 1: Reinforce the foundation using slab piles. The pile caps of the slab piles are located in the slab floor, and reinforcing bars are pre-installed at the top of the pile caps. A reinforced crushed stone cushion layer with a thickness of not less than 300mm is set on top of the slab piles and the foundation. Columns are set at the top of the slab floor, corresponding to the positions of the slab piles. The reinforcing bars around the columns are tied around the columns to form a diamond-shaped column sleeve. Step 2, Armor seam strip installation and compartmentalized construction: Install several armor seam strips on the top of the floor, and arrange the armor seam strips in a grid pattern; Step 3, laying the steel mesh: Lay the steel mesh on the floor, and connect the ends of the steel bars in the mesh to the armor seams; Step 4: Concrete mix design and steel fiber incorporation; Step 5, pouring and leveling of the concrete structural layer: pour concrete mixed with steel fibers onto the floor to form a concrete structural layer. The concrete structural layer is wrapped around the steel mesh, and the top surface of the concrete structural layer is flush with the top of the armor strip. The spreading and leveling are carried out using an infrared laser leveling machine control system. Step 6, Adsorption and cleaning of steel fibers: Use a strong magnetic tool to adsorb and clean the steel fibers on the surface of the concrete structure layer; Step 7, Construction of the abrasive wear-resistant surface layer: Abrasive is applied to the concrete surface in two stages of initial setting; the first application is two-thirds of the abrasive material, and the second application is one-third of the abrasive material. Between the two applications, strong magnetic adsorption of steel fibers is performed again; after each application of abrasive, mechanical troweling and overall curing of the concrete structure layer are carried out to form a dense surface layer. Step 8, Mechanical finishing and steel fiber treatment: After the surface of the concrete structure layer has solidified to the designed hardness, perform a third mechanical finishing. During the grinding process, any exposed steel fibers found should be cut off with scissors and the surface should be finished. Step 9, Cutting and Curing: Cut the dividing joints within 24 hours after the completion of the emery floor. The depth of the dividing joints shall not be less than 1 / 3 of the board thickness, and the curing time shall not be less than 14 days. Step 10, Construction of the curing agent layer: Spray the curing agent onto the surface of the diamond abrasion wear-resistant surface layer, allowing the curing agent to penetrate into the micropores of the diamond abrasion surface layer.

[0008] Preferably, the floor is made of plain concrete and is placed on a reinforced crushed stone subbase.

[0009] Preferably, in step one, the reinforced crushed stone cushion layer is laid on top of the ground piles and the foundation, with a thickness of not less than 300 mm; the reinforced crushed stone cushion layer includes crushed stone and reinforcing material; the crushed stone has a particle size of 20~40 mm, a mud content of ≤5%, and a compaction degree of ≥95%; the reinforcing material is geogrid or steel mesh, which is embedded in the crushed stone layer.

[0010] Preferably, the armor seam strip in step two includes a metal edge strip and an elastic rubber strip; the metal edge strip is made of galvanized steel plate or stainless steel plate, and the metal edge strip is T-shaped or inverted L-shaped; the elastic rubber strip is disposed on the inner side of the metal edge strip facing the seam opening.

[0011] Preferably, in step two, several armor strips are arranged into a rectangular grid structure to form several construction compartment grids with a side length not exceeding 40m×40m; temporary angle steel templates are installed at the edge of the rectangular grid structure or in the compartment grids where temporary boundaries need to be set; when installing the armor strips, the alignment deviation between the longitudinal center line and the design positioning line is not greater than 3mm; the flatness of the top surface of the armor strip is not greater than 2mm / 2m.

[0012] Preferably, after the armor seam strip is in place in step two, the armor seam strip is fixed with bolts, with a bolt spacing of no more than 500mm; the angle steel template error is no more than ±2mm; and the gap between the armor seam strip and the angle steel template is filled with foam board.

[0013] Preferably, the steel fibers in step two have a length of 60-80 mm, a diameter of 0.7 mm-0.8 mm, and a tensile strength of not less than 1100 MPa.

[0014] Preferably, the specific construction method for the diamond abrasion wear-resistant surface layer in step seven is as follows: Step 7.1, First application of corundum: Apply two-thirds of the corundum material, and after the corundum absorbs moisture and darkens, perform the first mechanical polishing. Step 7.2, Steel Fiber Adsorption: After the first smoothing is completed, a strong magnetic tool is used to clean the surface of the concrete structure layer by adsorbing steel fibers. Step 7.3, First application of corundum: Apply the remaining one-third of the corundum material. After the corundum darkens, perform a second mechanical polishing.

[0015] Preferably, in step nine, the dividing joint is cut using a large machine. Before cutting, the joint is marked with an ink line, with a joint width of 3-8mm and an area of ​​25-36m² within the dividing joint grid. Polyurethane sealant is used to fill the joint, with a filling depth of not less than 10mm. Curing is carried out by covering with geotextile and sprinkling water every 1-3 hours to ensure the surface remains continuously moist, and the curing time is not less than 14 days.

[0016] Preferably, the specific construction process in step ten is as follows: Step 10.1: Use a large floor grinder, install 50-mesh resin grinding discs on the grinding disc, and perform dry coarse grinding on the surface of the diamond abrasion wear-resistant layer to remove surface impurities, laitance and protrusions, open the surface capillaries, and create conditions for the hardener to penetrate. Step 10.2: Remove the 50-grit resin grinding pad and replace it with a 150-grit resin grinding pad to perform dry fine grinding on the ground, eliminating the grinding marks left by coarse grinding and improving the flatness of the ground. Step 10.3: Remove the 150-grit resin grinding pad and replace it with a 300-grit resin grinding pad. Perform dry fine grinding on the floor to further refine the floor texture, make the surface feel delicate, and facilitate the uniform penetration of the hardener. Step 10.4, spray the first coat of curing agent: spray the curing agent evenly on the surface of the diamond abrasion wear-resistant surface layer after 300-mesh grinding, and keep it moist for 15-20 minutes; Step 10.5, Grinding after hardener penetration: Remove the 300-grit resin grinding disc and replace it with a 500-grit resin grinding disc to grind the ground that has been sprayed with the first coat of hardener. Step 10.6, spray the second coat of hardener: Spray the hardener evenly on the ground surface again, wait for it to fully penetrate, and then let it dry naturally for 4 to 8 hours to allow the hardener to react completely and form a dense hardened layer.

[0017] Step 10.7: After the second coat of hardener has completely dried, remove the 500-grit resin grinding disc and replace it with a 1000-grit resin grinding disc. Use a high-speed grinding and polishing machine to perform bidirectional dry grinding to remove excess hardener film from the surface and prepare for final polishing. Step 10.8, Final Polishing: Remove the 1000-grit resin grinding pad, replace it with a high-speed polishing pad, and use a high-speed grinding and polishing machine to perform final polishing on the floor until the floor has a uniform and bright gloss.

[0018] Compared with the prior art, the present invention has the following features and beneficial effects.

[0019] 1. This invention employs a composite foundation of ground piles and reinforced crushed stone cushion to resist uneven settlement, thereby preventing structural cracks. It utilizes armored joint strips to form a large-grid compartment, combined with smaller grids cut later, creating a two-tiered crack control system with a large-grid main control and a smaller-grid refinement. The armored joint strips incorporate metal edge protectors and elastic sealant, providing regular weak-surface guidance for stress concentration and release during concrete shrinkage, effectively preventing random cracking within the slab. Simultaneously, the metal edge protectors safeguard the joint edges, solving the common quality problems of chipped edges and corners in traditional compartment joints, and extending the maintenance cycle of expansion joints.

[0020] 2. This invention uses an infrared laser leveling machine control system to pave and level concrete. Combined with the control precision of angle steel template error, as well as the strict requirements for centerline deviation and top flatness during armor strip installation, and with flatness detection throughout the process, the final floor flatness meets the precision requirements, satisfying the needs of new energy battery production workshops, high-end manufacturing workshops, and other places for high-precision floor equipment installation.

[0021] 3. In this invention, after the concrete is slurry is prepared, a strong magnetic tool is used to adsorb and clean the surface steel fibers. Each work compartment is equipped with 2 full-time personnel and 2 sets of strong magnetic equipment to ensure continuous and uninterrupted operation. If exposed steel fibers are found during the mechanical finishing process, they are immediately cut off with scissors and the surface is finished. Through the above two processes, the safety hazards caused by exposed steel fibers are avoided, and the safety of personnel and equipment is guaranteed.

[0022] 4. This invention integrates a standardized management process that creates preconditions, quantitatively controls the entire process, and conducts multi-dimensional hierarchical acceptance. From raw material control and construction process control to finished product acceptance, it achieves full traceability, improves project management and supply chain management capabilities, and accumulates core competitive advantages for similar large-scale projects.

[0023] 5. This invention utilizes geotextile covering and water spraying for curing to ensure full hydration of the concrete; the curing agent layer undergoes a meticulous construction process involving two sprays and multiple grinding passes, allowing the curing agent to fully penetrate into the micropores of the diamond abrasive surface layer and undergo a chemical reaction, forming a hard, dense, dustproof, wear-resistant, and glossy finished surface layer, significantly improving the service life and durability of the flooring. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure after the steel mesh of the present invention has been constructed.

[0026] Figure 2 This is a schematic diagram of the structure in this invention where the rhomboid column sleeve is arranged around the column.

[0027] Figure 3 This is a schematic diagram of the connection structure between the steel mesh and the armor seam strip in this invention.

[0028] Figure 4 This is a schematic diagram of the floor structure in this invention.

[0029] Figure 5 This is a schematic diagram of the structure of the armor seam strip in this invention.

[0030] Attached reference numerals: 1-floor, 2-concrete structural layer, 3-emery wear-resistant surface layer, 4-curing agent layer, 5-ground pile, 6-reinforced crushed stone cushion layer, 7-column, 8-reinforcing bar, 9-diamond column sleeve, 10-armor strip, 10.1-metal edge strip, 10.2-elastic strip, 11-steel mesh, 12-pile cap. Detailed Implementation

[0031] This method for constructing ultra-large area diamond abrasion wear-resistant flooring based on armor-like seam compartments, taking a large lithium battery production plant as an example, has a single-layer floor area of ​​12,000 square meters. The flooring includes a floor 1, a steel mesh 11, a concrete structural layer 2, a diamond abrasion wear-resistant surface layer 3, and a curing agent layer 4. Floor piles 5 are spaced apart in the foundation beneath the floor 1, with pile caps 12 at the top of each pile 5. The pile caps 12 are located within the floor 1. A reinforced crushed stone pad layer 6 is laid on top of the foundation and the floor piles 5, with reinforcing bars 8 pre-installed at the top of the pile caps. Columns 7 are installed on the floor 1 at positions corresponding to the floor piles 5. The reinforcing bars 8 around the columns 7 are tied together to form diamond-shaped column sleeves 9. The top of the floor 1... The unit is equipped with several armor strips 10, which are arranged in a grid pattern. The steel mesh 11 is laid on the floor 1, and the ends of the steel bars in the steel mesh 11 are connected to the armor strips 10. The concrete structure layer 2 is poured on the floor 1 and wrapped around the steel mesh 11. The top surface of the concrete structure layer 2 is flush with the top of the armor strips 10, and steel fibers are installed inside the concrete structure layer 2. The diamond abrasion wear-resistant surface layer 3 is applied to the surface of the concrete structure layer 2. The diamond abrasion is spread on the concrete surface in two stages during the initial setting stage, and after mechanical troweling, it is cured as a whole with the concrete base to form a dense surface layer. The curing agent layer is sprayed on the surface of the diamond abrasion wear-resistant surface layer, and the curing agent penetrates into the micropores of the diamond abrasion surface layer. The specific construction process is as follows.

[0032] Step 1: Foundation reinforcement and subbase construction.

[0033] Foundation reinforcement is achieved using slab piles 5, with a pile diameter of 400mm and a pile spacing of 2.5m × 2.5m. Pile caps 12 are installed on the top of each pile, located within the floor slab 1. Reinforcing bars 8 are pre-installed at the top of the pile caps 12. A reinforced crushed stone cushion layer 6, 350mm thick, is laid on top of the slab piles 5 and the foundation. The crushed stone is graded with a particle size of 20-40mm, a mud content of 3.8%, and a compaction degree of 96%. Bidirectional geogrids are used as reinforcement, embedded in the middle of the crushed stone layer. Columns 7, with a cross-sectional dimension of 300mm × 300mm, are cast at the top of the floor slab 1, corresponding to the slab piles 5. The reinforcing bars 8 around the columns 7 are tied together to form a rhomboid column sleeve 9.

[0034] Step Two, Installation and Compartmentation of Armor Seam Strips: Armor seam strips 10 are installed on the top of Floor 1 at a grid spacing of 40m x 40m. Armor seam strip 10 includes a metal edge strip 10.1 and an elastic rubber strip 10.2. The metal edge strip 10.1 is made of 3mm thick galvanized steel sheet with a T-shaped cross-section, and the elastic rubber strip 10.2 is an EPDM rubber strip, embedded in the inner side of the metal edge strip facing the seam opening. During installation, the deviation between the longitudinal centerline and the design positioning line should be ≤2mm, and the flatness of the top surface should be 1.5mm / 2m. After placement, expansion bolts are used for fixing, with a bolt spacing of 400mm. Angle steel templates are installed at the temporary boundary of the site edge, with an error of ±1.5mm. The gap between the armor seam strips and the angle steel templates is filled with 10mm thick foam board.

[0035] Step 3, laying of steel mesh: Double-layer bidirectional steel mesh 11 is used and laid on the floor 1. The ends of the steel bars are welded to the metal edge strip of the armor strip 10, with an overlap length of 150mm.

[0036] Step 4, Concrete Mix Design and Steel Fiber Incorporation: The concrete design strength grade is C30, with a slump controlled at 160mm ± 20mm. The initial setting time is 5 hours, and the final setting time is 9.5 hours. The steel fibers used are hook-shaped, 60mm long, and 0.75mm in diameter. The steel fibers are transported to the mixing plant by designated personnel, with the supervisor witnessing the arrival at the plant, and a dosage record is established.

[0037] Step 5, Concrete Structural Layer Pouring and Leveling: Concrete mixed with steel fibers is poured onto floor 1 using a concrete pump truck to form concrete structural layer 2, with a thickness of 200mm. Concrete structural layer 2 is wrapped with steel mesh 11, and its top surface is flush with the top of the armor strip 10. An infrared laser leveling machine is used for spreading and leveling; the laser emitter is positioned stably, and the elevation is checked every 10m.

[0038] Step Six, Steel Fiber Adsorption and Cleaning: Each work compartment is equipped with two dedicated personnel: one person uses a 150mm×300mm strong magnetic adsorption tool to move along the concrete surface in an S-shaped trajectory to adsorb steel fibers, while the other person simultaneously uses a scraper to clean the steel fibers adhering to the surface of the strong magnetic tool. Two sets of strong magnetic equipment are used alternately to ensure continuous and uninterrupted operation. The adsorption operation must be completed within 2 hours after the concrete is poured.

[0039] Step 7, Construction of the abrasive wear-resistant surface layer: The abrasive material is made of green non-metallic wear-resistant aggregate with a Mohs hardness ≥8 and a particle size of 0.5~1.5mm.

[0040] The specific construction method for the corundum wear-resistant surface layer is as follows: Step 7.1, First application of corundum: During the initial setting stage of the concrete, apply two-thirds of the required amount. After the corundum absorbs moisture and darkens, use a single-foot grinder to perform the first mechanical smoothing and finishing operation.

[0041] Step 7.2, Steel Fiber Adsorption: After the first smoothing is completed, a strong magnetic tool is used to clean the surface of the concrete structure layer 2 again by adsorbing steel fibers.

[0042] Step 7.3, Second application of corundum: Apply the remaining one-third of the amount of corundum. After the corundum darkens, use a two-foot grinder for a second mechanical smoothing and finishing process. Steel fiber magnetic adsorption is applied between the two applications. After the first application, use a 3m screed to level and correct the surface. After leveling, spray a finishing and enhancing agent, and then perform the finishing process. After finishing, use a square screed to perform three passes of leveling and correction in a crisscross pattern.

[0043] Step 8, Mechanical Finishing and Steel Fiber Treatment: After the surface of the concrete structural layer 2 has solidified to the point where a person can leave a footprint of about 3mm, use a double-foot grinder with four-cornered wing-shaped alloy grinding discs to perform a third mechanical finishing operation. Adjust the grinder speed to 1200 rpm and the walking speed to 0.5 m / s to achieve a uniform gloss on the surface, avoiding over-finishing. If exposed steel fibers are found during the grinding process, trim them flat with beveled shears and finish the surface.

[0044] Step Nine, Joint Cutting and Curing: Within 24 hours of the completion of the emery pavement, use a large ground cutting machine to cut the expansion joints. Before cutting, use an ink line to mark the lines; the joint width should be 5mm, and the depth should be 1 / 3 of the pavement thickness. The area within the grid of the expansion joint is 6m × 5m = 30m². The main joint is made of 10mm thick armor strips, with a large grid of 40m × 40m. The expansion joints are secondary joints, with a small grid of approximately 30m². After cutting, fill the joints with polyurethane sealant to a depth of 12mm. Curing involves covering the surface with two layers of geotextile and watering every 2 hours to ensure continuous surface moisture. The curing period is 14 days.

[0045] Step 10, Construction of Curing Agent Layer 4: The curing agent used is a lithium-based penetrating liquid hardener with a solid content ≥25%. The specific construction method is as follows: Step 10.1, coarse grinding: Use a large floor grinder with 50-mesh resin grinding discs to perform dry coarse grinding on the surface of the diamond abrasion wear-resistant layer to remove surface impurities, laitance and bumps. Grinding speed is 1.5m / min.

[0046] Step 10.2, fine grinding: Remove the 50-grit grinding disc and replace it with a 150-grit resin grinding disc for dry fine grinding to eliminate coarse grinding marks.

[0047] Step 10.3, Fine Grinding: Replace with 300-grit resin grinding pads for dry fine grinding to refine the surface texture.

[0048] Step 10.4, spray the first coat of hardener: spray the hardener evenly at a rate of 0.2 kg / m², keep it moist for 18 minutes to allow the hardener to fully penetrate.

[0049] Step 10.5, Grinding after curing agent penetration: Replace with 500-mesh resin grinding discs and perform wet grinding. The grinding action promotes further uniform penetration of the curing agent.

[0050] Step 10.6, spray the second coat of hardener: spray evenly again at a dosage of 0.15 kg / m², and allow to air dry for 6 hours.

[0051] Step 10.7, fine polishing: After the ground is completely dry, replace it with a 1000-grit resin polishing pad and use a high-speed polishing machine to polish the ground in both longitudinal and transverse directions, polishing twice in each direction.

[0052] Step 10.8, Final Polishing: Replace the high-speed polishing pad and use a high-speed grinding and polishing machine for final polishing at a speed of 2.0 m / min until the surface has a uniform and bright gloss.

[0053] After construction is completed, warning tape and no-entry signs will be set up around the area. People can walk on the area only after 72 hours of curing. After curing, a 15mm thick protective template will be laid on the ground to prevent heavy objects from running over it.

[0054] In this embodiment, full-process monitoring was conducted during construction, including monitoring concrete slump, flatness, levelness, steel fiber content, and curing humidity and temperature. All monitoring data were recorded to ensure full traceability. No flatness deviations exceeding 4mm / 2m or levelness deviations exceeding ±10mm occurred during construction.

[0055] The above embodiments are not exhaustive examples of specific implementation methods, and other embodiments are also possible. The purpose of the above embodiments is to illustrate the present invention, rather than to limit the scope of protection of the present invention. All applications derived from simple variations of the present invention fall within the scope of protection of the present invention.

Claims

1. A construction method for ultra-large area corundum wear-resistant flooring based on armor-joint compartments, characterized in that: The ultra-large area corundum wear-resistant flooring includes a floor (1), a steel mesh (11), a concrete structural layer (2), a corundum wear-resistant surface layer (3), and a curing agent layer (4); slab piles (5) are spaced apart in the foundation below the floor (1), and pile caps (12) are installed on the top of the slab piles (5); the pile caps (12) are located in the floor (1); a reinforced crushed stone cushion layer (6) is laid on the top of the foundation and the slab piles (5), and a spur bar (8) is reserved on the top of the pile cap (12); a column (7) is installed on the floor (1) at the position corresponding to the slab pile (5); the spur bars (8) around the column (7) are tied around the column (7) to form a rhomboid column sleeve (9); The top of the floor (1) is provided with several armor strips (10), and the armor strips (10) are arranged in a grid pattern; the steel mesh (11) is laid on the floor (1), and the ends of the steel bars in the steel mesh (11) are connected to the armor strips (10); the concrete structure layer (2) is poured on the floor (1) and wrapped around the steel mesh (11); the top surface of the concrete structure layer (2) is flush with the top of the armor strips (10), and steel fibers are provided in the concrete structure layer (2); the diamond abrasion wear-resistant surface layer (3) is set on the surface of the concrete structure layer (2), and the curing agent layer is sprayed on the surface of the diamond abrasion wear-resistant surface layer, and the curing agent penetrates into the micropores on the surface of the diamond abrasion surface layer; Includes the following steps: Step 1: Use ground piles (5) to reinforce the foundation. The pile cap (12) of the ground pile (5) is located in the floor (1). Reinforcing bars (8) are reserved at the top of the pile cap (12) of the ground pile (5). A reinforced crushed stone cushion layer (6) is set on the top of the ground pile (5) and the foundation. The thickness of the reinforced crushed stone cushion layer (6) is not less than 300mm. A column (7) is set on the top of the floor (1) at the position corresponding to the ground pile (5). The reinforcing bars (8) around the column (7) are tied around the column (7) to form a diamond-shaped column sleeve (9). Step 2, setting up and compartmentalized construction of armor seam strips (10): Several armor seam strips (10) are set on the top of the floor (1), and the armor seam strips (10) are set in a grid pattern; Step 3, laying of the steel mesh (11): lay the steel mesh (11) on the floor (1), and connect the ends of the steel bars in the steel mesh (11) to the armor strip (10); Step 4: Concrete mix design and steel fiber incorporation; Step 5, pouring and leveling of concrete structure layer (2): pour concrete mixed with steel fiber onto floor (1) to form concrete structure layer (2). Concrete structure layer (2) is wrapped around steel mesh (11), and the top surface of concrete structure layer (2) is flush with the top of armor strip (10). The infrared laser leveling machine control system is used for spreading and leveling. Step 6, Adsorption and cleaning of steel fibers: Use a strong magnetic tool to adsorb and clean the steel fibers on the surface of the concrete structure layer (2); Step 7, Construction of the diamond abrasion wear-resistant surface layer (3): Diamond abrasion is spread on the concrete surface in the initial setting stage in two stages; the first time, two-thirds of the diamond abrasion material is spread, and the second time, one-third of the diamond abrasion material is spread. Between the two spreading, strong magnetic adsorption of steel fibers is carried out again; after each spreading of diamond abrasion, mechanical troweling and overall curing construction of the concrete structural layer (2) are carried out to form a dense surface layer. Step 8, Mechanical finishing and steel fiber treatment: After the surface of the concrete structure layer (2) has solidified to the design hardness, perform the third mechanical finishing. During the grinding process, cut off any exposed steel fibers with scissors and finish the surface. Step 9, Cutting and Curing: Cut the dividing joints within 24 hours after the completion of the emery floor. The depth of the dividing joints shall not be less than 1 / 3 of the board thickness, and the curing time shall not be less than 14 days. Step 10, Construction of the curing agent layer (4): Spray the curing agent onto the surface of the diamond abrasion wear-resistant surface layer (3) so that the curing agent penetrates into the micropores of the diamond abrasion surface layer.

2. The construction method for ultra-large area diamond abrasive wear-resistant flooring based on armored joint compartments according to claim 1, characterized in that: The floor (1) is made of plain concrete and is placed on the reinforced crushed stone cushion layer (6).

3. The construction method for ultra-large area diamond abrasive wear-resistant flooring based on armor-joint compartments according to claim 1, characterized in that: In step one, the reinforced crushed stone cushion layer (6) is laid on top of the ground pile (5) and the foundation, with a thickness of not less than 300mm; the reinforced crushed stone cushion layer (6) includes crushed stone and reinforcement; the crushed stone has a particle size of 20~40mm, a mud content of ≤5%, and a compaction degree of ≥95%; the reinforcement is geogrid or steel mesh, which is buried in the crushed stone layer.

4. The construction method according to claim 1, characterized in that: The armor seam strip (10) mentioned in step two includes a metal edge strip (10.1) and an elastic rubber strip (10.2); the metal edge strip (10.1) is made of galvanized steel plate or stainless steel plate, and the metal edge strip (10.1) is T-shaped or inverted L-shaped; the elastic rubber strip (10.2) is set on the inner side of the metal edge strip (10.1) facing the seam.

5. The construction method according to claim 1, characterized in that: In step two, several armor strips (10) are arranged into a rectangular grid structure to form several construction compartment grids with a side length of no more than 40m×40m; temporary angle steel templates are installed at the edge of the rectangular grid structure or in the compartment grids where temporary boundaries need to be set; when the armor strips (10) are installed, the alignment deviation between the longitudinal center line and the design positioning line is no more than 3mm; the flatness of the top surface of the armor strips (10) is no more than 2mm / 2m.

6. The construction method according to claim 5, characterized in that: After the armor seam strip (10) is in place in step two, the armor seam strip (10) is fixed with bolts with a bolt spacing of no more than 500mm; the angle steel template error is no more than ±2mm; the gap between the armor seam strip (10) and the angle steel template is filled with foam board.

7. The construction method according to claim 1, characterized in that: The steel fibers in step two have a length of 60-80 mm, a diameter of 0.7 mm-0.8 mm, and a tensile strength of not less than 1100 MPa.

8. The construction method according to claim 1, characterized in that: The specific construction method for the diamond abrasion wear-resistant surface layer (3) in step seven is as follows: Step 7.1, First application of corundum: Apply two-thirds of the corundum material, and after the corundum absorbs moisture and darkens, perform the first mechanical polishing. Step 7.2, steel fiber adsorption: After the first smoothing is completed, a strong magnetic tool is used to clean the surface of the concrete structure layer (2) by adsorption of steel fibers; Step 7.3, First application of corundum: Apply the remaining one-third of the corundum material. After the corundum darkens, perform a second mechanical polishing.

9. The construction method according to claim 1, characterized in that: In step nine, the dividing joints are cut using large machinery. Before cutting, the lines are marked with ink, with a joint width of 3-8mm and an area of ​​25-36m² within the dividing joint grid. Polyurethane sealant is used to fill the joints, with a filling depth of ≥10mm. Curing is carried out by covering the geotextile with water spraying every 1-3 hours to ensure the surface remains continuously moist, and the curing time is no less than 14 days.

10. The construction method for ultra-large area diamond abrasive wear-resistant flooring based on armor-joint compartments according to claim 1, characterized in that: The specific construction process in step ten is as follows: Step 10.1: Use a large floor grinder, install 50-mesh resin grinding discs on the grinding disc, and perform dry coarse grinding on the surface of the diamond abrasion wear-resistant layer to remove surface impurities, laitance and protrusions, open the surface capillaries, and create conditions for the hardener to penetrate. Step 10.2: Remove the 50-grit resin grinding pad and replace it with a 150-grit resin grinding pad to perform dry fine grinding on the ground, eliminating the grinding marks left by coarse grinding and improving the flatness of the ground. Step 10.3: Remove the 150-grit resin grinding pad and replace it with a 300-grit resin grinding pad. Perform dry fine grinding on the floor to further refine the floor texture, make the surface feel delicate, and facilitate the uniform penetration of the hardener. Step 10.4, spray the first coat of curing agent: spray the curing agent evenly on the surface of the diamond abrasion wear-resistant surface layer after 300-mesh grinding, and keep it moist for 15-20 minutes; Step 10.5, Grinding after hardener penetration: Remove the 300-grit resin grinding disc and replace it with a 500-grit resin grinding disc to grind the ground that has been sprayed with the first coat of hardener. Step 10.6, spray the second coat of hardener: spray the hardener evenly on the ground surface again, wait for it to fully penetrate, and then let it dry naturally for 4 to 8 hours to allow the hardener to react completely and form a dense hardened layer; Step 10.7: After the second coat of hardener has completely dried, remove the 500-grit resin grinding disc and replace it with a 1000-grit resin grinding disc. Use a high-speed grinding and polishing machine to perform bidirectional dry grinding to remove excess hardener film from the surface and prepare for final polishing. Step 10.8, Final Polishing: Remove the 1000-grit resin grinding pad, replace it with a high-speed polishing pad, and use a high-speed grinding and polishing machine to perform final polishing on the floor until the floor has a uniform and bright gloss.

Images