Construction method of inorganic integral terrazzo floor

Abstract

The invention relates to the field of floor construction, and particularly discloses an inorganic integral terrazzo floor construction method which comprises the following steps: pouring a fine aggregate concrete leveling layer; the base surface structure is locally or wholly polished, and crack and hollowing areas of the base surface structure are treated; sealing primer, brushing interface paint on the surface of the base surface structure, and laying a net; marking a horizontal point; an anti-crack leveling layer is constructed; performing surface and interface treatment on the galling anti-cracking layer; re-checking a horizontal point and installing a dividing strip; paving the ground stone material, and curing for 48 hours after paving to form an inorganic ground stone pouring layer; grinding treatment is conducted, specifically, hardening treatment of the inorganic millstone pouring layer is completed according to the sub-steps of rough grinding and surface opening, hole repairing, curing, micropore filling and repairing, accurate grinding and the like; according to the scheme, the problem that the overall quality of the subsequent inorganic millstone pouring layer is poor due to the fact that a lower-layer base plane structure cracks in the construction process of an existing inorganic millstone floor can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of floor construction, in particular to an inorganic integral grindstone floor construction method. Background Art

[0002] Inorganic terrazzo flooring is a new type of terrazzo flooring made from high-alumina composite cement with decorative aggregates, then mixed, spread, and ground on-site. Its primary ingredients are natural mineral aggregates and environmentally friendly inorganic binders, eliminating harmful chemicals such as formaldehyde, benzene, and other volatile organic compounds (VOCs) that may be present in traditional flooring materials. This characteristic significantly reduces the impact on indoor air quality during construction and use, providing residents with a fresher and healthier indoor environment. The material offers numerous advantages, including high strength, high hardness, excellent impermeability, and the ability to cast large slabs. However, because inorganic terrazzo is made of inorganic cement, shrinkage cracking occurs naturally, a common problem with cement-based materials. Cracks caused by this factor appear as crazing on the surface of the terrazzo. Secondly, cracking due to defects in the fine stone concrete screed, such as insufficient strength, hollowing, and foundation cracking, mostly manifests as linear or Y-shaped cracks. Furthermore, significant deformation of the underlying ground, such as sinking, significant vibration, or wall deformation, which compresses the terrazzo, can also cause cracking in terrazzo floors. Currently, there are limited methods for addressing and preventing cracks in the terrazzo surface caused by structural cracks in the underlying base. Therefore, our company has proposed a new method for constructing inorganic monolithic terrazzo floors. Summary of the Invention

[0003] The present invention provides an inorganic integral grindstone floor construction method to solve the problem that cracks are generated in the lower base surface structure during the existing inorganic grindstone floor construction process, resulting in poor overall quality of the subsequent inorganic grindstone casting layer.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: an inorganic integral terrazzo floor construction method, comprising the following steps: Step 1: pouring a fine stone concrete leveling layer, laying a fine stone concrete leveling layer on the original structural layer as a base surface structure, the compressive strength of the base surface structure is ≥25MPa, the tensile strength is >2.0MPAS, and the base surface flatness reaches ≤3mm within a 2m ruler range;

[0005] Step 2: Base treatment: polish the base structure partially or as a whole, and treat cracks and hollow areas of the base structure;

[0006] Step 3: Apply sealant, apply interface paint to the surface of the base structure, and lay the mesh;

[0007] Step 4: Mark the level point, complete the surface elevation according to the base structure, and make the ash cake according to the forming surface marking line of the base structure;

[0008] Step 5: Construction of anti-cracking leveling layer, spreading the mixed anti-cracking material on the base structure at one time;

[0009] Step 6: Treat the surface and interface of the roughened anti-cracking layer, apply a water-based resin primer to the surface of the anti-cracking layer, and sand the interface;

[0010] Step 7: Check the horizontal points and install the separators, review the entire base surface, and install the separators according to the construction positioning layout drawings;

[0011] Step 8: Spreading the grinding stone material: After mixing the slurry on site, spread the inorganic grinding stone slurry and cure it for 48 hours to form the inorganic grinding stone casting layer;

[0012] Step 9: Grinding treatment, according to the sub-steps of rough grinding, hole repair, curing, micropore filling and repair, and fine grinding, the inorganic grinding stone casting layer is hardened;

[0013] Step 10: Surface protection treatment, waterproofing, anti-fouling and mirror finishing the surface of the inorganic grindstone casting layer.

[0014] Furthermore, the elevation difference between the fine stone concrete leveling cushion and the finished surface is controlled within 20mm, the thickness of the inorganic grinding stone casting layer is 8 to 50mm, the fine stone concrete is mechanically polished, and the curing period is ≥28 days;

[0015] Before step 3, the process also includes removing the laitance layer from the fine aggregate concrete surface, smoothing local high spots with a grinder, using industrial cleaners or mechanical methods to remove any contaminated surface, and inspecting the surface. This includes visually checking for cracks, tapping the surface with a hammer to check for hollows, and rubbing the surface with your feet to check for sanding. This inspection ensures that the fine aggregate concrete screed meets standards, that the concrete base is free of cracks, hollows, or sanding, and that expansion joints are cut along the columns.

[0016] Furthermore, step 2 involves treating the cracks in the base structure by cutting a V-groove, using a milling machine to plan a 300mm wide and 20mm deep reinforcing repair tape along the groove, vacuuming the groove to remove debris, applying a layer of epoxy resin inside the groove, and after drying, placing a steel mesh. Then, epoxy mortar is applied and compacted. The epoxy mortar has a 1:7 ratio of epoxy resin to quartz sand, with the quartz sand being 50% 20-mesh and 50% 40-mesh. The reinforcing repair tape ensures that the strength of the cracks meets the base structure requirements.

[0017] Furthermore, the mesh laying in step 3 includes laying the metal mesh on the fine stone concrete base, overlapping the joints by at least 3 centimeters, fixing the joints with steel nails at the board seams, and the mesh surface cannot bulge; the ash cake surface in step 4 is about 22 mm higher than the marking line, the ash cake spacing does not exceed 1.5 meters, and the height deviation is within 0.5 mm.

[0018] Furthermore, when the anti-cracking material in step 5 is spread on the base surface at one time, the surface is about 12mm lower than the ash cake surface; the thickness is about 10mm, and the amount of anti-cracking material is about 25kg / m 2 .

[0019] Furthermore, step 6 includes a first coat of primer, which is rolled at a ratio of resin: curing agent: water = 1:1:1; after the first coat is dry, a second coat is rolled at a ratio of resin: curing agent = 1:1, and sand is sprinkled while rolling. The sand is 60-80 mesh and the sand should be covered on the entire surface. The amount of sand is 1 kg / square meter. After the resin solidifies for at least 8 hours, the unbonded sand is swept out; if there is a local area larger than 300*300 mm where the sand is not firmly bonded, the local area is re-coated and sanded again. After the interface layer is completely dry, the unbonded sand is swept away.

[0020] Furthermore, the installation of the divider in step 7 includes first fixing the divider with 502 glue, adjusting the divider according to the horizontal elevation, and then fixing it with epoxy mortar or cement slurry, and sealing the raised portion of the divider with epoxy mortar;

[0021] Reserve 3-5mm of expansion space at the intersection of the column and the ground, and reserve 3-5mm of rubber strips for isolation. Pre-treatment should be done to prevent cracking around the external corners and ground plugs. A single layer of steel mesh should be added around the external corners and ground plugs, with the two edges of the steel mesh at right angles being 150mm thick.

[0022] Furthermore, in step 8, the inorganic grinding stone slurry paving involves using custom elevation blocks and string lines, referencing the elevation, and simultaneously applying infrared light for paving. A 3-meter ruler is also used for smoothness control. Aggregate paving must be even, with full paving along walls and dividers, ensuring that there is no slurry without stone.

[0023] Furthermore, the specific process of step 9 is that the inorganic grinding stone slurry is spread for about 48 hours before trial grinding is carried out, and 30 mesh metal grinding disc and 60 mesh metal grinding disc are used for coarse grinding in turn, and cross-cross uniform speed grinding is used to evenly grind out the flat cross section of the sand and gravel and the cross section of the aluminum bar, and the diameter is ≤3mm within the range of 2m ruler; the grinding machine is equipped with a 50 mesh resin grinding disc, and cross-cross uniform speed grinding is used until the ideal effect is achieved and the coarse grinding is completed; the grinding must start from the edges and corners, and then the whole is cross-crossed; when the 50 mesh resin grinding disc is completed, it is then polished with a 100 mesh resin dry grinding disc, and when the ideal effect is achieved and it is thoroughly cleaned, it is then polished again. Carry out repair construction; moisten the ground before repairing; the repair must be done as a whole, not locally, and one color should be repaired after the repair is dry before repairing the other color; 24 hours after the first repair, use a 200-mesh resin grinding disc to cross-grind at a uniform speed to grind off the surface repair material to the ideal effect; the repair layer is completely sealed without holes, and is ground to 150 mesh with a resin grinding disc to harden the ground; use a spray bottle to evenly spray the hardener on the surface, and use a special push cloth to evenly apply it. After 24 hours, use a special 300-mesh dry grinding disc for polishing. After achieving the ideal effect, proceed to the next process. The hardener is a nano-based curing agent.

[0024] Furthermore, the specific process of step 10 is that after the resin grinding disc is polished to 300 mesh, the ground is treated with antifouling; the ground is thoroughly cleaned, and the antifouling agent is evenly sprayed on the surface with a spray bottle, and the surface is evenly coated with a wool cloth, with an amount of 0.05kg / m 2 After drying for 6 hours, continue to polish with a 300-mesh resin grinding disc; when the resin grinding disc 300 mesh is polished to the ideal effect, do a final curing treatment, use a spray bottle to evenly spray the antifouling agent on the surface, and the surface needs to be dry. Use a cloth pusher to evenly apply it, the dosage is 0.05kg / m 2 The curing treatment uses a lithium-based curing agent, and after curing, it is polished using 800 mesh, 1500 mesh, and 3000 mesh respectively, and maintained for 1 to 2 days after polishing.

[0025] The beneficial effects of this solution are: there are limited methods for dealing with and responding to the later cracks in the grindstone surface layer caused by the structural joints of the lower base surface. This solution adopts the method of reinforcing the repair tape to ensure that the crack strength meets the standard requirements of the base surface, and in the subsequent solution, the external corners, the periphery of the ground plug and other prone to cracking are strengthened. Two curings are carried out during the rough grinding and polishing process, using sodium-based curing and lithium-based curing respectively. The sodium-based curing agent can quickly improve the hardness and wear resistance of the concrete surface, while the lithium-based curing agent can provide a more lasting and in-depth curing effect. The combination of the two can comprehensively improve the performance of the concrete. The inorganic integral grindstone floor obtained after construction according to this method can ensure that the ground does not crack, achieve the technical effect of good overall flatness and no warping, reduce the cost of later maintenance, and at the same time, utilize the characteristics of the inorganic grindstone surface layer such as long service life, corrosion resistance, and easy cleaning to save the cost of later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a flow chart of an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of an inorganic monolithic grindstone floor manufactured according to an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of crack treatment in step 2 of an embodiment of the present invention;

[0029] Figure 4 Schematic diagram of the installation of the steel wire mesh around the ground plug in step 7 of the embodiment of the present invention;

[0030] Figure 5 Schematic diagram of the installation of the steel wire mesh around the external corner edge in step 7 of an embodiment of the present invention;

[0031] Figure 6 This is a physical picture of the inorganic integral grindstone floor obtained according to the present invention. DETAILED DESCRIPTION

[0032] The following is further described in detail through specific implementation methods:

[0033] The figure marks in the drawings of the specification include: original structural layer 1, fine stone concrete layer 2, primer layer 3, tough anti-cracking layer 4, resin sanding layer 5, inorganic grinding stone casting layer 6, rough grinding repair layer 7, hardening treatment layer 8, anti-fouling layer 9, reinforced repair strip 201, epoxy mortar filling layer 202, reinforcing steel bar 203, V-shaped groove 204, steel mesh 601, ground plug 602, and external corner 603.

[0034] The embodiment is basically as shown in the attached Figure 1 To the attached Figure 6 As shown:

[0035] The figure marks in the drawings of the specification include: original structural layer 1, fine stone concrete layer 2, primer layer 3, tough anti-cracking layer 4, resin sanding layer 5, inorganic grinding stone casting layer 6, rough grinding repair layer 7, hardening treatment layer 8, anti-fouling layer 9, reinforced repair strip 201, epoxy mortar filling layer 202, reinforcing steel bar 203, V-shaped groove 204, steel mesh 601, ground plug 602, and external corner 603.

[0036] The embodiment is basically as shown in the attached Figure 1 To the attached Figure 6 As shown:

[0037] The inorganic integral terrazzo floor construction method is used to construct the inorganic terrazzo floor on the original structure layer 1. Figure 2As shown, it includes a fine stone concrete layer 2, a primer layer 3, a tough anti-cracking layer 4, a resin sanding layer 5, an inorganic grinding stone casting layer 6, a rough grinding repair layer 7, a hardening treatment layer 8, and an anti-fouling layer 9. This embodiment preferably uses a 10mm anti-cracking layer + a 10mm inorganic integral grinding stone layer for a more cost-effective thickness. The anti-cracking layer includes the fine stone concrete layer 2, the primer layer 3, the tough anti-cracking layer 4, and the resin sanding layer 5. The inorganic integral grinding stone layer includes the inorganic grinding stone casting layer 6.

[0038] Specifically, the inorganic integral terrazzo floor construction method includes the following steps S1 to S10:

[0039] S1: pouring fine stone concrete leveling layer, laying fine stone concrete leveling layer on the original structural layer 1 as the base structure, the compressive strength of the base structure is ≥25MPa, preferably 30MPa, that is, the strength of C30 fine stone concrete; the tensile strength is greater than 2.0MPa, preferably adding ￠6-￠8 single-layer steel mesh to the fine stone concrete; the base surface flatness reaches ≤3mm within a 2m ruler; the elevation difference between the fine stone concrete leveling cushion layer and the finished surface is controlled within 20mm, the fine stone concrete is mechanically polished, and the curing period is ≥28 days.

[0040] S2: Base treatment: polish the base structure partially or as a whole, and treat cracks and hollow areas of the base structure;

[0041] The specific process of step 2 is to measure the elevation of the finished product before grinding. After verifying the elevation, grind. First, find the high points of the base surface and eliminate them before grinding the large surface. Then grind the entire floor. Use a grinder with a 30-grit metal blade.

[0042] The standards for local and overall grinding are: enhance the adhesion of the ground, make the ground free of coarse particles, cement lumps, dust, and the flatness is ≤2mm within a 2m ruler.

[0043] In step 2, the cracks in the base structure are treated as follows: Figure 3 As shown, it includes cutting a V-shaped groove 204, using a milling machine to plan a 300mm wide and 20mm deep reinforced repair strip 201 along the seam, using a vacuum cleaner to remove debris in the groove, scraping a layer of epoxy resin in the groove, placing a steel mesh after drying, and then scraping epoxy mortar to fill and compact it. In the epoxy mortar filling layer 202, the ratio of epoxy resin to quartz sand is 1:7, and the quartz sand is half 20 mesh quartz sand and half 40 mesh quartz sand.

[0044] Furthermore, the base surface must be clean, free of loose particles, grease, or other contaminants before construction. For contaminated surfaces, appropriate industrial cleaners or mechanical methods should be used to remove them. Ensure the concrete base is free of cracks, hollows, sand, and column-cut expansion joints. Furthermore, the fine stone concrete screed, serving as the base for inorganic abrasive flooring, must meet inspection standards before proceeding to the next construction step. Inspections primarily include visual inspection for cracks, hammering for hollows, and foot rubbing for sand.

[0045] The construction of fine sand concrete layer 2 is now completed.

[0046] S3: Close the primer, apply interface paint to the surface of the base structure and lay the mesh;

[0047] The specific process of step 3 is that before the first coat of primer is applied, the surface must be roughened with a planer and a high-power vacuum cleaner must be used for cross-vacuuming. After vacuuming, the on-site construction workers will check by themselves to see if the corners and edges of the base surface are clean. Finally, the management staff will confirm whether the first coat of primer should be applied; then the interface primer will be applied.

[0048] The mesh laying process involves laying the metal mesh onto the base surface, overlapping it by at least 3 centimeters at the joints. It is then secured with steel nails at the seams, ensuring it is as flat as possible to avoid bulging or warping. The standard is that the mesh should be close to the base surface and free of bulges to prevent the stones from forming arches and creating a loose anti-cracking layer.

[0049] The construction of primer layer 3 is now completed.

[0050] S4: Mark the level point, according to the elevation of the finished surface of the base structure, and make the ash cake according to the marking line of the forming surface of the base structure;

[0051] The specific process of step 4 is to use a spirit level to measure and determine the elevation points at both ends of the ground in a direction or area according to the elevation of the finished ground surface, then draw a line and fix it to obtain the ground elevation completion line of the direction or area; make ash cakes according to the marking line of the forming surface, the ash cake surface is about 22mm higher than the marking line, the ash cake is according to the thickness required by the construction site, the ash cake spacing is no more than 1.5 meters, and the height deviation is within 0.5mm.

[0052] S5: Anti-cracking leveling layer construction, spread the mixed anti-cracking material on the base structure at one time;

[0053] The specific process of step 5 is as follows: material mixing: add water to the anti-cracking material and stir it to a flowable slurry. The water addition ratio is about 3.5-4.0kg / bag. Mix it evenly. The stirred material should be used up within 15 minutes. Spread the mixed anti-cracking material on the base surface at one time. Scrape it flat with a one-meter aluminum ruler or similar tool and press it appropriately. The surface should be about 12mm lower than the ash cake surface. The thickness is about 10mm. The amount of anti-cracking material is about 25kg / m 2 ;

[0054] The construction of the tough anti-cracking layer 4 is now completed.

[0055] S6: roughening the surface and interface of the anti-cracking layer, applying a water-based resin primer to the surface of the anti-cracking layer, and sanding the interface;

[0056] The specific process for step 6 is as follows: First, apply the primer with a roller coating using a 1:1:1 ratio of resin:curing agent; after the first coat has dried, apply the second coat with a 1:1 ratio of resin:curing agent. Sand the surface while rolling. Use 60-80 mesh sand, ensuring full coverage. Use 1 kg / m2 of sand. After the resin has solidified for at least 8 hours, sweep out any loose sand. If there are areas larger than 300 x 300 mm where the sand is loose, apply another coat with roller coating and then sand again. Once the interface layer is completely dry, sweep away any loose sand. The final standard is a uniform, rough surface with firmly bonded sand grains and no exposed base.

[0057] The construction of the resin sanding layer 5 is now completed.

[0058] S7: Check the horizontal points and install the separators, review the entire base surface, and install the separators according to the construction positioning layout drawings;

[0059] The installation of the divider strips is particularly important, as it affects the smoothness of the subsequent paving and directly affects the overall project results. Before installing the aluminum strips, the entire base surface must be rechecked, especially where the divider strips are located. High areas on the base surface must be ground to the design point of the divider strips with a hand grinder, and low areas where divider strips are required must be raised to install the divider strips.

[0060] The specific process of step 7 is to locate the pattern position according to the construction positioning drawing, first fix the dividing strip with 502 glue, adjust the dividing strip according to the horizontal elevation, and then fix it with epoxy mortar or cement slurry; after the dividing strip is installed, it is necessary to check whether the dividing strip is straight and meets the requirements of the drawing; mix epoxy mortar to seal the edge of the dividing pad to prevent seepage and color transfer during paving in the later stage; after the dividing strip is installed, focus on checking whether the dividing strip elevation is installed in place and recheck the elevation;

[0061] The edges of the external corner 603 and the ground plug 602 need to be treated to prevent cracking in advance, such as Figures 4-5 As shown, 3-5 mm expansion space is reserved at the junction of the wall column and the ground, and 3-5 mm is reserved for isolation with rubber strips. The edges of the external corner 603 and the surrounding areas of the ground plug 602 need to be pre-treated to prevent cracking. The edges of the external corner 603 and the surrounding areas of the ground plug 602 are added with ￠10-￠8 single-layer steel wire mesh 601, and the two right-angled edges of the steel wire mesh are 150 mm.

[0062] S8: Spreading the grindstone material. After mixing the slurry on site, spread the inorganic grindstone slurry. After spreading, cure for 48 hours to form the inorganic grindstone casting layer 6. In this embodiment, the thickness of the inorganic grindstone casting layer 6 is 10 mm. The thickness can be selected to be 8 to 50 mm according to the actual customization needs of the customer.

[0063] The specific process of step 8 is to check again whether the aluminum strips are loose or misaligned during the preliminary preparation of the inorganic grinding stone pouring layer 6, and whether the remaining sand is sucked clean after the sandblasting. The excess loose sand must be cleaned up, especially around the aluminum strips and the bottom of the wire mesh. Focus on checking whether water, electricity and transportation are convenient;

[0064] On-site mixing is done using a centrifugal mixer. Pour the inorganic grinding stone powder and gravel into the mixer in proportion and mix them evenly. Stir for 3-4 minutes until uniform. The mixing standard is: mix in order: first add water and stir to wet the barrel wall, then add the powder and start stirring, and then pour in the aggregate and mix until uniform. The amount of water added needs to be weighed, and the specific amount should be adjusted appropriately according to the ratio and weather conditions.

[0065] Start paving work after stirring, and use it immediately after mixing. When pouring, pour the material continuously according to the designed thickness. Do not pour it on the ground in one bucket. Use a scraper or trowel to smooth it out and avoid scraping the slurry from the surface. Visually fill the areas with fewer stones with stones. If there are dividing strips, the paving thickness should be based on the dividing strips. Just cover the aluminum strips. If the dividing strips are not installed, use a wire or infrared to control the paving thickness. When paving one color, pollutants in adjacent areas must be cleaned in time, and color pollution must not occur. Pay special attention to the raised parts of the dividing strips to avoid liquid seepage after paving the aggregate and flow to other color areas, resulting in color mixing. Divide the blocks and areas for paving according to the conditions of the construction site. The paving of the selected area must be completed in one go. Work must not be stopped midway, and no joints should appear to prevent color differences.

[0066] Paving effect control standards: Use customized elevation blocks and tension lines, refer to the elevation and use infrared light for paving, and use a 3-meter ruler to control the flatness. Aggregate paving should be uniform, and the edges of walls and dividing strips should be paved full, without slurry without stone. The material consumption in this embodiment is about 25kg / m 2 This amount is suitable for controlling the thickness of the inorganic grinding stone layer at 12mm. The general design requirement is 10mm, and the grinding process generally wears away about 2mm.

[0067] The construction of the inorganic grinding stone pouring layer 6 is now completed.

[0068] S9: grinding treatment, according to the sub-steps of rough grinding, hole repairing, curing, micropore filling and repairing, and fine grinding, the inorganic grinding stone casting layer 6 is hardened;

[0069] The specific process of step 9 is to conduct a trial grinding after the inorganic grinding stone slurry has been spread for about 48 hours. If stones fly out of the mill during the trial grinding, grinding should be stopped immediately. Grinding can be continued if the trial grinding strength meets the requirements. Otherwise, grinding should be continued after the strength reaches the required level. In this solution, the inorganic grinding stone hardness strength is preferably C260. Use 30-mesh metal grinding disc and 60-mesh metal grinding disc for rough grinding in turn, cross-grinding at a uniform speed to evenly grind out the flat cross-section of sand and gravel and the cross-section of aluminum strip, within the range of 2m ruler ≤3mm; equip the grinding machine with 50-mesh resin grinding disc, cross-grinding at a uniform speed until the ideal effect is achieved and the rough grinding is completed; grinding must start from the edges and corners, and then cross-grind the entire surface; after the 50-mesh resin grinding disc is completed, use 100-mesh resin dry grinding disc for grinding, and when the ideal effect is achieved and it is thoroughly cleaned, repair construction can be carried out; moisten the ground before repairing; the entire surface must be repaired, and local repairs cannot be made. Wait until one color is dry before repairing the other color; 24 hours after the first repair, use 200-mesh resin grinding disc to cross-grind at a uniform speed to grind off the surface repair material to the ideal effect; thus, the construction of rough grinding repair layer 7 is completed.

[0070] The repair layer is completely sealed without holes, and is ground to 150 mesh with a resin grinding wheel to harden the ground; the hardener is evenly sprayed on the surface with a spray bottle. The hardener is a nano-based curing agent and is evenly spread with a special push cloth. After 24 hours, it is polished with a special 300 mesh dry grinding wheel. After achieving the ideal effect, the next process can be carried out.

[0071] The construction of the hardened layer 8 is now completed.

[0072] S10: Surface protection treatment, the surface of the inorganic grinding stone casting layer 6 is waterproofed, anti-fouling and mirror-finished.

[0073] Specifically, after the resin grinding disc is polished to 300 mesh, the ground is treated with antifouling. The ground is thoroughly cleaned, and the antifouling agent is evenly sprayed on the surface with a spray bottle, and the surface is evenly coated with a wool cloth. The amount is 0.05kg / m 2 After drying for 6 hours, continue to polish with a 300-mesh resin grinding disc; when the resin grinding disc 300 mesh is polished to the ideal effect, do a final curing treatment, use a spray bottle to evenly spray the curing agent on the surface. This curing treatment uses a lithium-based curing agent. The surface needs to be dry and evenly coated with a cloth head. The dosage is 0.05kg / m 2 After curing, the polishing was performed using 800 mesh, 1500 mesh and 3000 mesh respectively, thus completing the construction of the antifouling layer 9.

[0074] After polishing, the construction is completed after 1 to 2 days of maintenance, and inorganic integral terrazzo flooring can be used.

[0075] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. The construction method of inorganic integral grinding stone floor is characterized by: The steps include: Step 1: Pour the fine stone concrete leveling layer, and lay the fine stone concrete leveling layer on the original structural layer as the base surface structure. The compressive strength of the base surface structure is ≥25MPa, the tensile strength is >2.0MPAS, and the base surface flatness reaches ≤3mm within a 2m ruler; Step 2: Base treatment: polish the base structure partially or as a whole, and treat cracks and hollow areas of the base structure; Step 3: Apply sealant, apply interface paint to the surface of the base structure, and lay the mesh; Step 4: Mark the level point, complete the surface elevation according to the base structure, and make the ash cake according to the forming surface marking line of the base structure; Step 5: Construction of anti-cracking leveling layer, spreading the mixed anti-cracking material on the base structure at one time; Step 6: Treat the surface and interface of the roughened anti-cracking layer, apply a water-based resin primer to the surface of the anti-cracking layer, and sand the interface; Step 7: Check the horizontal points and install the separators, review the entire base surface, and install the separators according to the construction positioning layout drawings; Step 8: Spreading the grinding stone material: After mixing the slurry on site, spread the inorganic grinding stone slurry and cure it for 48 hours to form the inorganic grinding stone casting layer; Step 9: Grinding treatment, according to the sub-steps of rough grinding, hole repair, curing, micropore filling and repair, and fine grinding, the inorganic grinding stone casting layer is hardened; Step 10: Surface protection treatment, waterproofing, anti-fouling and mirror finishing the surface of the inorganic grindstone casting layer.

2. The inorganic integral grindstone floor construction method according to claim 1, characterized in that: The elevation difference between the fine stone concrete leveling cushion and the finished surface should be controlled within 20mm. The thickness of the inorganic grinding stone pouring layer should be 8-50mm. The fine stone concrete should be mechanically polished and the curing period should be ≥28 days. Before step 3, the process also includes removing the floating slurry layer on the surface of the fine stone concrete, using a grinder to smooth local high points, using industrial cleaners or mechanical methods to remove the contaminated base surface, and inspecting the base surface. The base surface inspection includes visually inspecting the base surface for cracks, tapping the base surface with a hammer to check for hollows, and rubbing the base surface with feet to check for sanding.

3. The inorganic integral grindstone floor construction method according to claim 2, characterized in that: The treatment of the cracks in the base structure in step 2 includes cutting a V-groove, planing a 300 mm wide and 20 mm deep reinforcement repair strip along the seam with a milling machine, removing debris in the groove with a vacuum cleaner, applying a layer of epoxy resin in the groove, placing a steel mesh after drying, and then applying epoxy mortar to fill and compact it. In the epoxy mortar, the ratio of epoxy resin to quartz sand is 1:7, and the quartz sand is half 20 mesh quartz sand and half 40 mesh quartz sand.

4. The inorganic integral grindstone floor construction method according to claim 3, characterized in that: The mesh laying in step 3 includes laying the metal mesh on the fine stone concrete base surface, overlapping at least 3 centimeters at the joints, fixing with steel nails at the board seams, and the mesh surface cannot bulge; the ash cake surface in step 4 is about 22 mm higher than the marking line, the ash cake spacing does not exceed 1.5 meters, and the height deviation is within 0.5 mm.

5. The inorganic integral grindstone floor construction method according to claim 4, characterized in that: When the anti-cracking material in step 5 is spread on the base surface at one time, the surface is about 12 mm lower than the ash cake surface; the thickness is about 10 mm, and the amount of anti-cracking material is about 25 kg / m 2 .

6. The inorganic integral grindstone floor construction method according to claim 5, characterized in that: Step 6 includes the first primer coat, which is applied by roller coating in a ratio of resin: curing agent: water = 1:1:1; After the first coat is dry, roll on the second coat, with a resin: curing agent ratio of 1:1, and sprinkle sand while rolling. The sand should be 60-80 mesh and the entire surface should be covered. The amount is 1kg / square meter. After the resin solidifies for at least 8 hours, sweep out the unstuck sand. If there is a local area larger than 300*300mm where the sand is not firmly adhered, roll on this local area again and sprinkle sand again. After the interface layer is dry, sweep away the unstuck sand on the surface.

7. The inorganic integral grindstone floor construction method according to claim 6, characterized in that: The installation of the partition strip in step 7 includes first fixing the partition strip with 502 glue, adjusting the partition strip according to the horizontal elevation, and then fixing it with epoxy mortar or cement slurry, and sealing the raised portion of the partition strip with epoxy mortar; 3-5 mm expansion space is reserved at the junction of the column and the ground, and 3-5 mm is reserved for isolation with rubber strips. The outer corners and the surrounding areas of the ground plugs need to be treated in advance to prevent cracking. A single layer of steel wire mesh is added around the outer corners and the ground plugs, and the two right-angled edges of the steel wire mesh are 150 mm.

8. The inorganic integral grindstone floor construction method according to claim 7, characterized in that: The inorganic grinding stone slurry paving in step 8 includes paving by customizing elevation blocks and pulling lines, referring to the elevation and applying infrared rays at the same time, and controlling the flatness with a 3-meter ruler; the aggregate paving should be uniform, and the edges of the walls and dividing strips should be paved full, and there should be no slurry without stone.

9. The inorganic integral grindstone floor construction method according to claim 8, characterized in that: The specific process of step 9 is as follows: the inorganic grinding stone slurry is spread for about 48 hours before trial grinding is carried out, and 30-mesh metal grinding disc and 60-mesh metal grinding disc are used for coarse grinding in turn, and cross-cross uniform speed grinding is used to evenly grind out the flat cross section of the sand and gravel and the cross section of the aluminum bar, and the cross section of the aluminum bar is ≤3mm within the range of 2m ruler; the grinding machine is equipped with a 50-mesh resin grinding disc, and cross-cross uniform speed grinding is used until the ideal effect is achieved and the coarse grinding is completed; the grinding must start from the corners and then cross-cross grinding as a whole; when the 50-mesh resin grinding disc is completed, it is then polished with a 100-mesh resin dry grinding disc, and when the ideal effect is achieved and it is thoroughly cleaned, it is then proceeded Carry out repair construction; moisten the ground before repairing; the repair must be done as a whole, not locally, and one color should be repaired after the repair is dry before repairing the other color; 24 hours after the first repair, use a 200-mesh resin grinding disc to cross-grind at a uniform speed to grind off the surface repair material to the ideal effect; the repair layer is completely sealed without holes, and is ground to 150 mesh with a resin grinding disc to harden the ground; use a spray bottle to evenly spray the hardener on the surface, and use a special push cloth to evenly apply it. After 24 hours, use a special 300-mesh dry grinding disc for polishing. After achieving the ideal effect, proceed to the next process. The hardener is a nano-based curing agent.

10. The inorganic integral grindstone floor construction method according to claim 9, characterized in that: The specific process of step 10 is as follows: after the resin grinding disc is polished to 300 mesh, the ground is treated with antifouling treatment; the ground is thoroughly cleaned, and the antifouling agent is evenly sprayed on the surface with a spray bottle, and the surface is evenly coated with a wool cloth, with an amount of 0.05kg / m 2 After drying for 6 hours, continue to polish with a 300-mesh resin grinding disc; when the resin grinding disc 300 mesh is polished to the ideal effect, do a final curing treatment, use a spray bottle to evenly spray the antifouling agent on the surface, and the surface needs to be dry. Use a cloth pusher to evenly apply it, the dosage is 0.05kg / m 2 The curing treatment uses a lithium-based curing agent, and after curing, it is polished using 800 mesh, 1500 mesh, and 3000 mesh respectively, and maintained for 1 to 2 days after polishing.

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