A full-length flexible buffering paving method for preventing blasting and stretching of rock plate

Abstract

This invention discloses a full-circumference flexible buffer laying method for preventing cracking and expansion / contraction of slabs. The construction method includes the following steps: base treatment; squaring and marking; interface agent application, using a roller or brush to evenly apply to the surface of the wall and floor base; flexible screed buffer isolation strip construction; transition layer construction, applying tile adhesive transition layer; leveling layer construction, using the flexible screed buffer isolation strip as a reference, constructing leveling layers for the wall and floor; slab laying, using tile adhesive in a thin-set manner. This invention relates to the field of building decoration and renovation technology. By using a flexible screed buffer isolation strip that runs through the wall and floor and is closed along the entire circumference, combined with a rigid-flexible leveling structure and a double interface reinforcement process, it can effectively absorb and release thermal expansion and contraction stress, vibration stress, and base settlement stress, solving problems such as cracking, cracking, top cracking, and arching that easily occur after laying ultra-large slabs.

Description

Technical Field

[0001] This invention relates to the field of building decoration and renovation technology, specifically to a full-circumference flexible buffer laying method for preventing cracking and expansion of slabs. Background Technology

[0002] With the continuous upgrading of the building decoration industry, sintered stone, with its advantages of high strength, high wear resistance, stain resistance, high temperature resistance, high aesthetic appeal, and environmental friendliness, has been widely used in wall and floor decoration. Especially extra-large sintered stone slabs, due to their beautiful overall installation effect, seamless construction, and strong visual unity, have become the preferred material in high-end decoration fields. However, during the installation process of extra-large sintered stone slabs, various factors can easily lead to various quality problems, seriously affecting the decorative effect and safety of use, thus hindering the further development of the sintered stone slab industry.

[0003] Traditional methods for laying extra-large slabs of porcelain often employ conventional tile laying techniques, lacking specific anti-cracking and expansion / contraction designs tailored to the characteristics of porcelain slabs (heavy weight, high brittleness, and unique coefficient of thermal expansion and contraction). This results in the following core problems: First, cracking and shattering caused by thermal expansion and contraction are prominent issues. The thermal expansion and contraction coefficients of the slab and the substrate (concrete, cement mortar, etc.) differ significantly. During temperature changes (such as seasonal changes, the on / off state of underfloor heating, and indoor / outdoor temperature differences), the slab and substrate will undergo varying degrees of expansion and contraction. Because traditional methods lack effective expansion and contraction buffer structures, the stress generated by this deformation cannot be released and accumulates inside the slab. When the stress exceeds the tensile strength of the slab, cracking and shattering will occur. This is especially true in underfloor heating environments, where the periodic heating and cooling of the system exacerbates this deformation, significantly increasing the probability of cracking. Related data shows that over 30% of extra-large slabs installed using traditional methods crack within 1-2 years in underfloor heating environments, severely impacting user experience and safety.

[0004] Secondly, areas of stress concentration are prone to damage. Areas such as junction box holes, pipe holes, door and window openings, external corners, and wall-floor junctions are stress concentration zones during the installation of slabs. Traditional methods do not employ targeted reinforcement and buffering measures in these areas. Even minor settlement or vibration of the substrate, or expansion and contraction of the slabs, can generate concentrated stress in these areas, leading to problems such as top cracks, edge chipping, hollowing, and even detachment of the slabs. For example, slabs near door and window openings are highly susceptible to edge cracking and hollowing due to vibrations from opening and closing doors and windows and wall settlement; slabs around junction box holes, where the opening disrupts the integrity of the slab, experience significant stress concentration and are prone to ring cracking.

[0005] Third, the interfacial bonding reliability is insufficient, easily leading to hollow areas and detachment. The smooth surface and extremely low water absorption of the slab make bonding with the substrate difficult. Traditional processes often employ a single interfacial treatment method (such as simply applying a common interface agent) or directly using cement mortar, resulting in insufficient bonding strength between the slab and the substrate. Under the influence of the slab's own weight, vibration, and substrate deformation, hollow areas and detachment are highly likely to occur. Especially for extra-large slabs, where a single piece can weigh tens or even hundreds of kilograms, the requirements for interfacial bonding strength are even higher. Traditional bonding methods are insufficient to meet long-term use requirements, posing significant safety hazards.

[0006] Fourth, the leveling and buffering design of the base layer is unreasonable. In traditional processes, walls and floors often use a single rigid leveling method, lacking a structural design that combines rigidity and flexibility. Minor deformations of the base layer are directly transmitted to the slab, causing cracking. Simultaneously, traditional processes lack a comprehensive buffering and isolation structure, only using simple buffer strips in localized areas, failing to achieve full-area stress release and fundamentally solve the cracking problem of the slab. Furthermore, in areas with underfloor heating, the traditional leveling layer is insufficiently thick, unable to effectively buffer the stress generated by underfloor heating, and easily leads to uneven heat transfer, further exacerbating the deformation and cracking of the slab.

[0007] Fifth, the construction process is not standardized, making quality control difficult. Traditional techniques lack unified construction standards and procedures. In each stage, including base treatment, layout and positioning, interface treatment, leveling, slab laying, hole treatment, and curing, there are problems with non-standard operations. For example, incomplete base cleaning, large deviations in layout and positioning, uneven application of interface agent, insufficient leveling layer thickness, inadequate air release during slab laying, and insufficient curing time all lead to a decline in slab laying quality and increase the risk of cracking, hollowing, and detachment.

[0008] Currently, some improved processes for crack prevention in slab porcelain have emerged in the industry, but most suffer from problems such as imperfect design, lack of specificity, and unsatisfactory results. For example, some processes only set expansion joints between slabs, failing to address the issue of expansion and contraction deformation between the slab and the substrate; some processes only set buffer structures at localized stress concentration points, failing to achieve overall crack prevention; and some processes use a single interface treatment method, resulting in insufficient bonding strength and failing to meet the requirements for laying ultra-large slabs. Therefore, developing a slab porcelain construction method that can achieve overall crack prevention, effectively release expansion and contraction stress, ensure reliable bonding, and adapt to complex construction scenarios (especially underfloor heating environments) has become a technical problem that needs to be solved in the current building decoration and renovation field. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a full-circumference flexible buffer laying method for slabs that is resistant to cracking and expansion / contraction, solving the problems of existing slabs being prone to cracking and bursting due to thermal expansion and contraction, having insufficient bonding reliability, and being prone to hollowing and falling off.

[0010] To achieve the above objectives, the present invention provides a full-circumference flexible buffer paving method for preventing cracking and expansion of slabs, the construction method comprising the following steps: Step 1, base treatment, which is used to clean the base layer of the wall and floor; Step 2, squaring and laying out lines, which is used to determine the reference axis of the building and the elevation and position of the finished surface of the rock slab, and to pop up the control lines for rock slab laying, the control lines for the installation of flexible screed buffer isolation strip, and the elevation control lines for the leveling layer. Step 3: Apply the interface agent. Dilute the interface agent according to the specified ratio and stir it evenly until there are no lumps or sediments. Then, use a roller or brush to apply it evenly to the surface of the wall or floor base. Step 4: Construction of flexible screed buffer isolation strip. According to the markings of the square layout, the flexible screed buffer isolation strip is continuously installed around each rock slab. Step 5, Transition layer construction: After the interface agent applied to the wall and floor base surface has fully dried, the tile adhesive transition layer is constructed. Step 6, Leveling layer construction: After the transition layer is completed, let it stand for 10-15 minutes until the tile adhesive has initially cured. Then, using the flexible screed buffer isolation strip as a reference, construct the leveling layer for the wall and floor. After the leveling layer is completed, it should be cured for no less than 7 days. Step 7: Laying the slabs. Using tile adhesive, the slabs are laid according to the marked square lines, ensuring that each slab is surrounded by a flexible ribbed buffer strip around its entire perimeter.

[0011] In some embodiments, the construction method further includes: After the slab is laid, holes are made according to the location of junction boxes and pipes. Before making the holes, the hole positions are located and control lines are marked. Holes are made using a slab hole cutter. After the holes are made, a full-circumference flexible buffer structure is set around the holes. The full-circumference flexible buffer structure is made of the same material as the flexible rib buffer isolation strip and is firmly attached with tile adhesive. Then, the edge of the slab hole is pressed over the buffer structure. Finally, flexible sealant is filled between the slab and the junction boxes and pipes. After the slabs are laid, they are cured for no less than 28 days. During the curing process, the quality of the slabs is checked regularly. If hollow spots or cracks are found, they are repaired. After the curing is completed, the surface of the slabs is cleaned to remove stains and adhesive residue, and then polished.

[0012] In some embodiments, the flexible screed buffer isolation strip is arranged in a wall-to-ground, fully enclosed manner. It is continuously installed around the perimeter of a single slab and the perimeter of the slab paving area, without any breaks or seams, forming a fully enclosed buffer isolation ring. The flexible buffer isolation strip on the wall is continuously installed along the height of the wall, extending from the ground base to the top elevation of the slab paving. The flexible buffer isolation strip on the ground is continuously installed along the perimeter of the ground, seamlessly connecting with the buffer isolation strip on the wall to form a wall-to-ground integrated closed structure. At the same time, the cement mortar plaster layer on the wall, the semi-dry mortar layer on the ground, and the flexible screed buffer isolation strip are arranged side by side on the same layer.

[0013] In some embodiments, the leveling layer construction includes: The rigid leveling of the wall surface adopts a cement mortar rigid leveling layer. The flexible screed buffer isolation strip is used as a reference for layered plastering and leveling. The thickness of the leveling layer is adjusted according to the flatness of the base layer to ensure that the verticality deviation of the wall surface is ≤3mm / 2m and the flatness deviation is ≤3mm / 2m. The ground is leveled with semi-dry mortar. The semi-dry mortar is used for the flexible leveling layer. The semi-dry mortar has a mass ratio of cement:medium sand:water = 1:5:0.35.

[0014] In some embodiments, the opening process includes: The hole location treatment involves setting up a flexible screed buffer isolation zone around the hole location. During construction, a ring control line is first marked around the hole location. The flexible buffer material is then cut into a ring shape and pasted within the ring control line area. The edge of the rock slab hole is then pressed over the flexible screed buffer isolation zone to form a local stress release area. At the same time, when drilling holes in the rock slab, round holes are drilled at the corners to reduce stress concentration, and metal parts are used for reinforcement. For door and window opening treatment, the flexible slab buffer isolation strip is set around the door and window opening, which is seamlessly connected with the full-circumference flexible slab buffer isolation strip of the whole house. The flexible slab buffer isolation strip at the external corner of the opening is rounded. When the rock slab is laid to the door and window opening, the edge overlaps the flexible slab buffer isolation strip. At the same time, an expansion joint is reserved between the rock slab and the door and window frame and filled with flexible sealant. The layout of rock slabs at the door and window opening should avoid narrow strips of bricks less than 1 / 3 of a whole brick. Non-whole bricks should be placed in concealed places. For the treatment of external corners, the external corners are treated by wrapping with the flexible buffer material. The width of the flexible buffer material is 40-50mm and the thickness is the same as the thickness of the wall leveling layer. When laying the slab, the external corners are treated with the begonia corner technique, with the edge of the slab overlapping the buffer material. At the same time, anti-crack corner strips are pasted at the external corners. For wall-mounted water and electricity trenching, expanded perlite is used for filling after the trenches are cut. During filling, the expanded perlite is filled into the trenches in layers and compacted in layers. The filling height is flush with the wall base. Then, an interface agent is applied to the trench surface, and the wall leveling construction is carried out to ensure that the trench area forms an integral whole with the surrounding base without obvious joints.

[0015] In some embodiments, the construction of the flexible reinforced buffer isolation strip includes: Construction of flexible screed buffer isolation strip on the wall: During construction, the flexible screed buffer isolation strip is cut into strips with the same height as the wall surface, and is pasted on the wall base with tile adhesive. The pasting thickness is 1-2mm. The top of the flexible screed buffer isolation strip on the wall surface is flush with the top elevation of the rock slab, and the bottom is seamlessly connected with the flexible screed buffer isolation strip on the ground. During the construction of the flexible ground screed buffer isolation strip, the flexible screed buffer isolation strip is cut into strips with the same length as the perimeter of the ground and pasted onto the ground base layer, seamlessly connecting with the flexible ground screed buffer isolation strip on the wall to form a closed structure around the entire perimeter. After the flexible screed buffer isolation strip is installed, check the flatness and verticality. The deviation should be ≤2mm. If there is any deviation, make adjustments.

[0016] In some embodiments, cleaning the wall and floor base layer involves removing dust, oil, laitance, and loose debris from the base surface. For protruding parts of the base surface, an angle grinder or chisel is used to level them. For recessed parts, cement mortar is used for repair. When the repair thickness is ≥10mm, it should be repaired in layers, with each layer not exceeding 10mm in thickness. If the flatness deviation of the base layer is large, greater than 30mm, overall leveling should be carried out first before subsequent construction. For the base layer of old buildings, if there is a risk of settlement, the base layer should be reinforced first before tiling construction.

[0017] In some embodiments, when laying out the square lines, ensure that the control lines are accurate and clear, the square deviation for the entire house is ≤2mm, the elevation deviation of the finished surface of the slab is ≤1mm, and the installation control lines for the flexible screed buffer isolation strip (which also serves as the screed) are popped out along the perimeter of the slab to ensure the accurate installation position of the flexible screed buffer isolation strip; for large-area paving areas, it is recommended to set joint control lines every 6 meters, and the slab layout should be consistent with the joint control lines.

[0018] In some embodiments, when applying the interface agent, the application sequence is first the wall surface and then the floor surface, first the inside corners and then the outside corners and then the flat surfaces, to ensure even application, no missed areas and no accumulation; after application, let it stand until it is completely dry. The standard for complete drying is that the surface of the interface agent is no longer sticky to the touch, and there are no obvious marks when pressed with a finger. The drying time should be adjusted according to the ambient temperature. When the temperature is below 10℃, the drying time should be extended.

[0019] In some embodiments, before laying the slabs, the slabs are inspected, and those with cracks, missing corners, or color differences are removed. Dust and stains on the surface of the slabs are cleaned, and a layer of tile adhesive is applied to the back of the slab. After the tile adhesive is thoroughly mixed, a notched trowel is used to apply the tile adhesive to both the leveling layer surface and the back of the slab. The tile adhesive on the back of the slab should be fully applied. Then, the slabs are laid, and the flatness and verticality of the slabs are adjusted. The gaps between the slabs are controlled to be 2-3mm. A tile leveler is used to level the slabs to ensure that the surfaces of adjacent slabs are flush. During the laying process, excess tile adhesive on the surface of the slabs is cleaned up in a timely manner. For slabs with a single side length >1200mm or a thickness <9mm, an anti-crack pad can be laid between the leveling layer and the slab.

[0020] Beneficial effects 1. Achieving comprehensive crack prevention and solving core industry pain points: This invention adopts a flexible, ribbed buffer isolation zone that runs through the walls and floors and is closed along the entire perimeter. Combined with a leveling structure that combines rigidity and flexibility and a double-interface reinforcement process, it forms a comprehensive protection system that can effectively absorb and release thermal expansion and contraction stress, vibration stress, and base settlement stress. This fundamentally solves the problems of cracking, shattering, top cracking, and arching that easily occur after laying ultra-large-sized slabs. Especially in the environment of underfloor heating, by thickening the leveling layer and optimizing the buffer structure, the probability of slab cracking is greatly reduced. Actual engineering verification shows that the cracking rate of slabs laid using the construction method of this invention is less than 1%, which is far superior to the traditional process (cracking rate of more than 30%).

[0021] 2. Enhanced Bonding Reliability, Preventing Hollow Areas and Detachment: Through a dual-interface reinforcement treatment using JG / T 468 interface agent and a C2TES2 grade tile adhesive transition layer, the bonding strength between the slab and the substrate is significantly improved, forming a multi-layer bonding system. This ensures a firm bond between the slab and the substrate, preventing hollow areas and detachment. It is especially suitable for laying extra-large slabs, with bonding strength meeting national standards and a 100% pass rate in pull-out tests. Simultaneously, the high flexibility and anti-slip properties of the C2TES2 grade tile adhesive further enhance the stability of the slab installation, making it suitable for various complex substrate environments.

[0022] 3. Targeted solutions for stress concentration areas: Specialized buffering and reinforcement measures are employed at stress concentration points such as junction box holes, pipe holes, door and window openings, and external corners. These include the installation of ring-shaped buffer structures, rounded edges, and crack-resistant corner guards to effectively disperse stress and prevent cracking, chipping, and detachment of the slabs, thus improving the overall quality and safety of the slab installation. Simultaneously, a scientific layout design avoids the use of narrow slabs, ensuring both aesthetics and enhanced structural stability.

[0023] 4. Adaptable to various complex construction scenarios: The construction method of this invention is not only suitable for the laying of slabs in conventional buildings, but also particularly suitable for complex scenarios such as underfloor heating environments, old building bases, areas prone to settlement, and humid environments (bathrooms, kitchens). By adjusting the buffer material, leveling layer thickness, and interface treatment process, it can meet the construction needs of different scenarios, making it widely applicable and highly practical. For example, in underfloor heating environments, thickening the leveling layer and adding wire mesh effectively buffers the stress of underfloor heating; in humid environments, using a waterproof backing board with reinforced mesh as a buffer material provides both waterproofing and buffering functions.

[0024] 5. Standardized Construction and High Operability: This invention clearly defines the detailed construction process, technical parameters, and operational requirements. Each construction stage has clear quality control standards, allowing construction personnel to operate according to the standardized procedures, reducing construction difficulty, improving construction efficiency, and facilitating quality acceptance to ensure stable construction quality. Compared with traditional processes, the construction process of this invention is more standardized, requires no complex construction equipment, and can be mastered by ordinary construction personnel after simple training, which is conducive to its widespread application.

[0025] 6. Compliant with national standards and long service life: The construction method of this invention complies with national construction and acceptance standards for building decoration and renovation projects (such as GB 50210-2018 "Standard for Acceptance of Construction and Decoration Engineering Quality" and JGJ / T304-2013 "Standard for Acceptance of Residential Interior Decoration and Renovation Engineering Quality"), ensuring high-quality construction and guaranteeing the long-term stability of the slab decoration, extending its service life, and reducing subsequent maintenance costs. Actual engineering verification shows that slabs laid using this invention exhibit significantly better long-term stability than those laid using traditional methods.

[0026] 7. Combining Economy and Environmental Protection: The materials used in this invention are all commonly used in the building decoration field, easy to procure, and moderately priced. Compared with traditional processes, it does not require excessive increases in material costs. Furthermore, by reducing subsequent maintenance and extending service life, the overall decoration cost is lowered. All materials used meet national environmental protection standards (e.g., C2TES2 grade tile adhesive meets French A+ certification, with formaldehyde emission ≤0.01mg / m³). 3 It releases no harmful substances, is environmentally friendly and non-toxic, and is suitable for various interior decoration scenarios, including children's rooms and bedrooms. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1 This invention provides a technical solution: a full-circumference flexible buffer paving method for preventing cracking and expansion of slabs, the construction method including the following steps: Step 1, surface preparation, which involves cleaning the base layer of the wall and floor; Step 2, squaring and laying out lines. Squaring and laying out lines is used to determine the reference axis of the building and to locate the elevation and position of the finished surface of the rock slab. It also involves marking out the control lines for rock slab laying, the control lines for the installation of flexible screed buffer isolation strips, and the elevation control lines for the leveling layer. Step 3: Apply the interface agent. Dilute the interface agent according to the specified ratio and stir it evenly until there are no lumps or sediments. Then, use a roller or brush to apply it evenly to the surface of the wall or floor base. Step 4: Construction of flexible screed buffer isolation zone. Install the flexible screed buffer isolation zone according to the markings on the square layout line. Step 5: Construction of the transition layer. After the interface agent applied to the base surface of the wall and floor has dried completely, the tile adhesive transition layer is then applied. Step 6: Leveling layer construction. After the transition layer is completed, let it stand for 10-15 minutes until the tile adhesive has initially cured. Then, using the flexible screed buffer isolation strip as a reference, carry out the leveling layer construction on the wall and floor. After the leveling layer construction is completed, it needs to be cured for no less than 7 days. Step 7: Porcelain slab installation. Using tile adhesive, install the slabs in a thin-set manner according to the marked lines. Each slab is surrounded by a flexible ribbed buffer strip around its entire perimeter.

[0030] Material selection for flexible screed buffer strips: Flexible elastic materials should be used. These materials must possess good elasticity, shock absorption, compressive strength, and aging resistance, effectively absorbing and releasing thermal expansion and contraction stress and vibration stress, while also possessing sufficient strength for use as leveling screed strips. Applicable materials include, but are not limited to, extruded polystyrene (XPS) boards, expanded perlite boards, polyethylene foam boards, rubber elastic strips, and waterproof backing boards with reinforcing mesh, among other flexible shock-absorbing materials. Among them, extruded polystyrene (XPS) board has a unique micro-closed-cell honeycomb structure, high density, high compressibility, low thermal conductivity, low water absorption, and excellent freeze-thaw resistance and compression creep resistance, making it especially suitable for underfloor heating environments; expanded perlite board has good thermal insulation, heat insulation, and shock absorption properties, and good compatibility with cement mortar, making it suitable for wall buffering and filling of water and electricity grooves; polyethylene foam board is almost non-absorbent of water and impermeable to water vapor, has good flexibility, and excellent aging resistance, making it suitable for areas with high humidity; rubber elastic strips have good elasticity and outstanding shock absorption effect, making them suitable for areas with frequent vibration; waterproof backing board with reinforcing mesh has both waterproof and reinforcement functions, making it suitable for humid environments such as bathrooms and kitchens.

[0031] The dimensions of the flexible screed buffer strip are as follows: width 40mm-60mm, preferably 50mm. This width ensures both buffering effectiveness and meets the positioning requirements of the leveling screed, avoiding insufficient buffering due to excessive narrowness or affecting the overall integrity of the slab installation due to excessive width. The thickness of the flexible buffer strip on the wall surface should be no less than 15mm, preferably 15-20mm, to ensure effective buffering of deformation and vibration of the wall substrate while meeting the basic requirements for wall leveling. The thickness of the flexible buffer strip on the ground surface should be no less than 40mm, preferably 40-50mm. Combined with the thickness of the semi-dry mortar leveling layer, this forms an effective ground buffer system, especially effective in radiant floor heating environments, absorbing the expansion and contraction stress generated by the heating.

[0032] The connection method between the slab and the flexible screed buffer isolation strip: The edges of the extra-large slab are overlapped by 20mm-30mm on each side above the flexible screed buffer isolation strip, forming a "slab pressing flexible screed buffer isolation strip" structure. This connection method can effectively block the expansion and contraction deformation of the slab edge, avoid cracking and top cracking of the slab edge due to stress concentration, and at the same time enhance the connection stability between the slab and the base layer, preventing the slab from falling off.

[0033] The interface agent treatment, combined with the tile adhesive transition layer treatment, forms a double interface reinforcement process. The interface agent used is JG / T468 interface agent, a specialized interface material for reinforcing building substrates. It has excellent permeability, adhesion, and sealing properties, allowing it to penetrate into the substrate and form a strong bonding layer after curing. This seals the capillary pores of the substrate, preventing sanding and detachment, while simultaneously enhancing the bond strength between the substrate and subsequent leveling and tile adhesive layers. During construction, the JG / T468 interface agent is diluted according to the product instructions (generally interface agent:water = 1:0.3-0.5), and evenly applied to the wall and floor substrate surface. The coating thickness is 0.3-0.5mm, ensuring no missed areas or accumulation. After application, allow it to dry completely (generally 2-4 hours, adjusted according to ambient temperature) before proceeding with subsequent construction.

[0034] The tile adhesive used is C2TES2 grade tile adhesive, a highly flexible and high-strength bonding material with a bonding strength ≥1.5MPa. It can withstand substrate deformation of ±3mm, adapting to the expansion and contraction of the slab, and also possesses excellent anti-slip properties. When vertically laying a 2400×1200mm slab, it does not shift for 40 minutes. After the interface agent has fully dried, a 1.0mm-1.5mm thick C2TES2 grade tile adhesive transition layer is applied to the wall surface. A notched trowel is used during application to ensure the transition layer is uniform, flat, and free of air bubbles and hollow areas. The transition layer further enhances the interface bonding strength, forming a multi-layer bonding system of "substrate-interface agent-tile adhesive transition layer-slab," improving the stability of the slab installation and preventing hollow areas and detachment. Some high-quality C2TES2 grade tile adhesives contain added high-carbon fiber, which forms a mesh reinforcement structure, further enhancing the bonding strength.

[0035] In some embodiments, the construction method further includes: After the slab is laid, holes are made according to the location of junction boxes and pipes. Before making the holes, the hole positions are determined and control lines are marked. A slab hole saw is used to make the holes, and the hole saw is rotated at a constant speed during the process. The edges of the holes should be flat and smooth, without chipping or missing corners. After the holes are made, a full-circumference flexible buffer structure is set around the holes. The full-circumference flexible buffer structure uses the same material as the flexible rib buffer isolation strip, with a width of 30-40mm and a thickness consistent with the leveling layer. It is firmly attached with tile adhesive. Then, the edge of the slab hole is pressed over the buffer structure, with a pressing width of 15-20mm. Finally, flexible sealant is filled between the slab and the junction boxes and pipes. The sealant should be full, flat, without air bubbles or gaps, for waterproofing and buffering. After the slabs are laid, they should be cured for at least 28 days. During the curing period, avoid collisions, stepping on or knocking on the slabs, avoid placing heavy objects on them, avoid turning on the underfloor heating, and avoid drastic changes in ambient temperature. During the curing process, regularly check the quality of the slab installation. If hollow spots or cracks are found, repair them. After the curing is completed, clean the surface of the slabs, remove stains and adhesive residue, and polish them.

[0036] In some embodiments, the flexible screed buffer isolation strip is arranged in a wall-to-ground, fully enclosed manner. It is continuously installed around the perimeter of a single slab and the perimeter of the slab paving area, without any breaks or gaps, forming a fully enclosed buffer isolation ring. The flexible buffer isolation strip on the wall is continuously installed along the height of the wall, extending from the ground base layer to the top elevation of the slab paving. The flexible buffer isolation strip on the ground is continuously installed along the perimeter of the ground, seamlessly connecting with the buffer isolation strip on the wall to form a closed structure integrating the wall and ground. At the same time, the cement mortar plaster layer on the wall, the semi-dry mortar layer on the ground, and the flexible screed buffer isolation strip are arranged side by side on the same layer.

[0037] In some embodiments, the leveling layer construction includes: Rigid wall leveling uses a cement mortar rigid leveling layer, with a flexible screed buffer isolation zone as the reference, and performs layered plastering leveling. The thickness of the leveling layer is adjusted according to the flatness of the base layer, ranging from 15-25mm, to ensure that the verticality deviation of the wall is ≤3mm / 2m and the flatness deviation is ≤3mm / 2m. The ground surface is leveled using semi-dry mortar. The semi-dry mortar has a mass ratio of cement:medium sand:water = 1:5:0.35, and its moisture content is between 10% and 15%. The thickness of the leveling layer varies depending on whether underfloor heating is installed: For areas without underfloor heating, the thickness should be ≥40mm, preferably 40-50mm; for areas with underfloor heating, the thickness should be ≥50mm, preferably 50-60mm. This ensures effective coverage of the underfloor heating pipes while providing sufficient buffer thickness to cushion the stress generated by the heating system and guarantee even heat distribution. In areas with underfloor heating, a wire mesh (preferably with a mesh size of 5-10cm and a diameter of 2.0-3.0mm) can be added to the leveling layer to further resist shrinkage stress, reduce cracking, and improve the overall integrity of the leveling layer.

[0038] In some embodiments, the opening process includes: For the treatment of the opening location, a flexible screed buffer isolation strip with a width of 30-40mm and a thickness consistent with the leveling layer thickness of the area where the opening is located is set around the opening location. During construction, first, a circular control line is marked around the opening location. The flexible buffer material is cut into a ring and pasted within the circular control line area. Then, the edge of the rock slab opening is pressed over the flexible screed buffer isolation strip with a pressing width of 15-20mm to form a local stress release zone. At the same time, when the rock slab is opened, round holes are drilled at the corners to reduce stress concentration. Metal parts are bonded together to reinforce the opening and improve its strength to prevent the edge of the opening from cracking. For door and window openings, a flexible slab buffer strip is installed around the perimeter of the opening, seamlessly connecting with the flexible slab buffer strip along the entire perimeter of the building. The flexible slab buffer strip at the external corners of the openings is rounded with a radius ≥10mm. When the slab is laid to the door and window openings, the edges overlap the flexible slab buffer strip. At the same time, a 5-8mm expansion joint is reserved between the slab and the door and window frames, which is filled with flexible sealant. The slab layout at the door and window openings should avoid narrow strips of slab less than 1 / 3 of a whole brick. Non-whole bricks should be placed in concealed areas. For the treatment of external corners, flexible buffer material is used to wrap the corners. The width of the flexible buffer material is 40-50mm, and the thickness is the same as the thickness of the wall leveling layer. The wrapping angle is 135°. When laying the slab, the external corners are treated with the begonia corner technique, with the edge of the slab overlapping the buffer material. At the same time, anti-crack corner strips are pasted at the external corners. For wall-mounted plumbing and electrical wiring trenching, expanded perlite is used for filling after the trenches are cut. During filling, the expanded perlite is layered into the trenches and compacted in layers, with the filling density controlled at 180-220 kg / m³. 3 The filling height should be flush with the wall base layer. Then, apply an interface agent to the grooved surface and perform wall leveling to ensure that the grooved area forms an integral whole with the surrounding base layer without obvious seams.

[0039] In some embodiments, the construction of flexible reinforced buffer isolation strips includes: When constructing the flexible screed buffer isolation strip on the wall, the flexible screed buffer isolation strip is cut into strips of the same height as the wall surface and pasted onto the wall base with tile adhesive. The pasting thickness is 1-2mm. The thickness of the flexible screed buffer isolation strip is not less than 15mm, and the width is 40-60mm. The top of the flexible screed buffer isolation strip on the wall is flush with the top elevation of the rock slab, and the bottom is seamlessly connected to the flexible screed buffer isolation strip on the ground. For the construction of flexible ground-level screed buffer barriers, the flexible screed buffer barriers are cut into strips of the same length as the perimeter of the ground and pasted onto the ground base layer. The pasting thickness is 1-2mm, not less than 40mm, and the width is 40-60mm. They are seamlessly connected to the flexible ground-level screed buffer barriers on the wall to form a fully enclosed structure. After the flexible screed buffer barriers are installed, the flatness and verticality are checked. The deviation should be ≤2mm. If any deviation exists, adjustments should be made.

[0040] In some embodiments, cleaning the wall and floor base layer involves removing dust, oil, laitance, and loose debris from the base surface. For protruding parts of the base surface, an angle grinder or chisel is used to level them. For recessed parts, cement mortar is used for repair. When the repair thickness is ≥10mm, it should be repaired in layers, with each layer not exceeding 10mm in thickness. If the flatness deviation of the base layer is large, greater than 30mm, overall leveling should be carried out first before subsequent construction. For the base layer of old buildings, if there is a risk of settlement, the base layer should be reinforced first before tiling construction.

[0041] In some embodiments, when laying out the square lines, ensure that the control lines are accurate and clear, with a square deviation of ≤2mm for the whole house and an elevation deviation of ≤1mm for the finished surface of the slab. Pop up the installation control lines for the flexible slab buffer isolation strip along the perimeter of the slab to ensure that the installation position of the flexible slab buffer isolation strip is accurate. For large-area paving areas, it is recommended to set joint control lines every 6 meters, and the slab layout should be consistent with the joint control lines.

[0042] In some embodiments, when applying the interface agent, the application sequence is: first the wall surface, then the floor surface; first the inside corners and outside corners, then the flat surfaces, ensuring even application without omissions or accumulation. The coating thickness should be controlled at 0.3-0.5mm. After application, allow it to dry completely. The standard for complete drying is that the interface agent surface is no longer sticky to the touch, and pressing with a finger leaves no obvious marks. The drying time should be adjusted according to the ambient temperature, generally 2-4 hours. When the temperature is below 10℃, the drying time should be extended.

[0043] In some embodiments, before laying the slabs, the slabs are inspected, and those with cracks, missing corners, or color differences are removed. Dust and stains on the surface of the slabs are cleaned. A layer of tile adhesive is applied to the back of the slab. After the tile adhesive is thoroughly mixed, a notched trowel is used to apply the tile adhesive to both the leveling layer surface and the back of the slab, with a thickness of 3-5mm. The tile adhesive on the back of the slab should be fully applied. Then, the slabs are laid, and the flatness and verticality of the slabs are adjusted. The flatness deviation is ≤1mm / 2m, and the verticality deviation is ≤2mm / 2m. The gap between the slabs is controlled at 2-3mm. A tile leveler is used to level the slabs to ensure that the surfaces of adjacent slabs are flush. The edges of the slabs are overlapped by 20mm-30mm on each side above the flexible rib buffer isolation strip. During the laying process, excess tile adhesive on the surface of the slabs is cleaned up in time. For slabs with a single side length >1200mm or a thickness <9mm, an anti-crack pad can be laid between the leveling layer and the slab. Example 1

[0044] When laying slabs on the living room floor, use an angle grinder to remove protruding parts of the subfloor surface, and use a chisel to remove loose or hollow areas. For recessed areas, repair with cement mortar to a thickness of 15mm, in layers, each layer not exceeding 10mm in thickness. After compaction, allow to cure for 24 hours. Clean the surface of the subfloor of dust and debris, rinse with clean water, and allow to dry. Ensure the subfloor is firm, flat, and clean, with a flatness deviation ≤5mm / 2m, and no hollow areas, cracks, or loose sand. Then, use an infrared level, tape measure, and chalk line to square and lay out the entire house, determining the reference axis of the house. Based on the specifications of the slabs and the requirements for continuous paving, determine the elevation of the finished surface of the slabs (50mm from the subfloor, i.e., 50mm thick leveling layer). Mark the control lines for slab paving, flexible screed buffer strip installation, and leveling layer elevation. Flexible slab buffer strips with a width of 50mm are installed control lines around the perimeter of the living room floor. Simultaneously, a joint control line is set every 6m in the center of the living room to ensure the slab layout and joint control lines are consistent. After the lines are laid out, they are checked to ensure accuracy and clarity, with a total square deviation of ≤2mm and a finished slab elevation deviation of ≤1mm. Then, JG / T 468 interface agent is diluted with water at a ratio of 1:0.4, and stirred thoroughly with a mixer until there are no lumps or sediment. It is then evenly applied to the floor substrate using a roller, starting from the perimeter and then moving to the center, ensuring even coverage, no missed areas, and no accumulation. The coating thickness is controlled at 0.4mm. After application, allow to stand for 3 hours (ambient temperature 20℃) until the interface agent is completely dry (the surface is no longer sticky, and there are no obvious marks when pressed with a finger). Then, according to the installation control lines of the flexible screed buffer isolation zone, cut the extruded polystyrene board (XPS) into strips of the same length as the perimeter of the living room floor (length 8m×2+5m×2=26m), 50mm wide, and 50mm thick. Use C2TES2 grade tile adhesive to adhere it to the floor base layer, with an adhesion thickness of 1.5mm. During adhesion, ensure that the XPS board is firmly bonded to the base layer, without looseness or hollow areas, and that the top surface of the XPS board is flush with the leveling layer elevation control line. After the flexible screed buffer strip is installed, check its flatness. The deviation should be ≤2mm. If any deviation exists, adjust it promptly to ensure the flexible screed buffer strip is continuous, flat, and without breaks. Since it is laid on the ground, there is no need to apply a transition layer to the wall; proceed directly to the ground leveling layer construction. The ground uses a semi-dry mortar flexible leveling layer with a mix ratio of cement:medium sand:water = 1:5:0.35 (by weight). Mix it thoroughly with a mixer, controlling the moisture content to 12%. It should be able to form a clump when squeezed by hand but crumble easily when dropped. Before laying the leveling layer, lay a wire mesh on the ground base layer, fixing it to the base layer with cement nails at 500mm intervals, ensuring the wire mesh is flat, firm, and without looseness.Then, the semi-dry mortar is laid in layers on the ground base. The first layer is 25mm thick and is leveled with a screed using a flexible screed buffer strip as a reference, and then compacted with a trowel. After standing for 1 hour, the second layer of semi-dry mortar, also 25mm thick, is laid, leveled, and compacted to ensure a total leveling layer thickness of 50mm and a flatness deviation of ≤3mm / 2m. After the leveling layer is completed, it should be cured promptly by watering twice a day for 7 days. During the curing period, avoid collisions and stepping on the leveling layer to prevent damage to the underfloor heating pipes. Before laying the slab, clean the dust and stains from the surface of the slab. Since the slab has an extremely low water absorption rate (≤0.1%), apply a 1mm thick layer of C2TES Grade 2 tile adhesive to the back of the slab to enhance adhesion. Mix C2TES Grade 2 tile adhesive thoroughly with a mixer. Using a 15×15mm notched trowel, apply the adhesive to both the leveling layer surface and the back of the slab, applying a 4mm thick layer with clear, consistent notch patterns. Ensure the adhesive is fully applied to the back of the slab, leaving no gaps. Then, accurately lay the slab in the designed position, adjusting its flatness and verticality using a tile leveler to ensure adjacent slabs are flush. The flatness deviation should be ≤1mm / 2m, and the verticality deviation ≤2mm / 2m. The gap between slabs should be controlled to 2.5mm. Overlap the slab edges by 25mm onto the flexible reinforcing rib buffer strip on one side, ensuring the overlap is full and free of hollow areas. Lay the slabs from the inside of the living room towards the doorway, proceeding one slab at a time. During installation, promptly clean any excess adhesive from the slab surface to prevent it from hardening and becoming difficult to remove. Example 2

[0045] When tiling the walls of a commercial showroom, use an angle grinder to remove protruding parts and loose mortar from the wall substrate surface. Use a chisel to remove loose and hollow substrate. For recessed areas, repair with cement mortar, 20mm thick, in layers, each layer not exceeding 10mm in thickness. After compaction, allow to cure for 24 hours. For areas with slight substrate settlement, lay a steel mesh (10cm x 10cm mesh, 3mm diameter) and fix it with expansion bolts at 400mm intervals, ensuring the steel mesh is flat and secure. Clean the dust and debris from the base surface, rinse it with clean water, and let it dry. Ensure the base is firm, flat, and clean, with a vertical deviation ≤5mm / 2m. Use the squaring and layout method of Example 1 to locate the elevation and position of the finished surface of the rock slab. Mark the control lines for rock slab laying, flexible screed buffer strip installation, and leveling layer elevation. Then, apply the interface agent and the flexible screed buffer strip. After the interface agent is fully dry, apply the C2TES2 grade tile adhesive transition layer. Mix the C2TES2 grade tile adhesive evenly with a mixer and apply it to the wall base and the surface of the flexible screed buffer strip using a 10×10mm notched trowel. The application sequence is: first the inside corners, then the outside corners, then the flat surfaces, first the bottom, then the top. The thickness of the application layer is 1.2mm. Ensure the transition layer is uniform, flat, free of air bubbles and hollows, and the notched texture is clear and consistent in direction. After the transition layer is applied, let it stand for 12 minutes until the tile adhesive has initially cured (the surface is no longer sticky). Then, proceed with the wall leveling layer. A rigid cement mortar leveling layer is used, with a mix ratio of cement:medium sand = 1:3 (by weight), mixed thoroughly with water. Using the flexible screed buffer zone as a reference, apply the mortar in layers. The first layer is 6mm thick, compacted, and allowed to set (approximately 1.5 hours). The second layer is 8mm thick, compacted, and allowed to set again. Finally, the third layer is 6mm thick, continuing until the total leveling layer thickness reaches 20mm. During the leveling layer construction, an infrared level is used to monitor verticality and flatness in real time, ensuring that the wall verticality deviation is ≤3mm / 2m and the flatness deviation is ≤3mm / 2m. After the leveling layer is completed, it should be cured in a timely manner, with water sprayed twice a day for 7 days. During the curing period, avoid collisions and knocks on the wall, and avoid scaffolding contacting the wall to prevent the leveling layer from cracking or falling off; finally, the slabs should be laid.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0047] It is worth noting that all standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The models of electrical structure equipment involved can be selected according to the user's needs, as long as they meet the requirements of this application. In addition, the circuit connection adopts conventional connection methods in the prior art. The supporting electrical structures such as the control, current detection, position feedback, predicted voltage synchronization and parameter adjustment of the electrical equipment are all existing technologies, such as PLC controllers and module structures, so they will not be described in detail here.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for laying slabs with full-circumference flexible buffering that prevents cracking and expansion throughout the entire slab surface, characterized in that, The construction method includes the following steps: Step 1, base treatment, which is used to clean the base layer of the wall and floor; Step 2, squaring and laying out lines, which is used to determine the reference axis of the building and the elevation and position of the finished surface of the rock slab, and to pop up the control lines for rock slab laying, the control lines for the installation of flexible screed buffer isolation strip, and the elevation control lines for the leveling layer. Step 3: Apply the interface agent. Dilute the interface agent according to the specified ratio and stir it evenly until there are no lumps or sediments. Then, use a roller or brush to apply it evenly to the surface of the wall or floor base. Step 4: Construction of flexible screed buffer isolation strip. According to the markings of the square layout, the flexible screed buffer isolation strip is continuously installed around each rock slab. Step 5, Transition layer construction: After the interface agent applied to the wall and floor base surface has fully dried, the tile adhesive transition layer is constructed. Step 6, Leveling layer construction: After the transition layer is completed, let it stand for 10-15 minutes until the tile adhesive has initially cured. Then, using the flexible screed buffer isolation strip as a reference, construct the leveling layer for the wall and floor. After the leveling layer is completed, it should be cured for no less than 7 days. Step 7: Laying the slabs. Using tile adhesive, the slabs are laid according to the marked square lines, ensuring that each slab is surrounded by a flexible ribbed buffer strip around its entire perimeter.

2. The method for laying a flexible buffer slab with full perimeter protection against cracking and expansion / contraction in slabs according to claim 1, characterized in that, The construction method also includes: After the slab is laid, holes are made according to the location of junction boxes and pipes. Before making the holes, the hole positions are located and control lines are marked. Holes are made using a slab hole cutter. After the holes are made, a full-circumference flexible buffer structure is set around the holes. The full-circumference flexible buffer structure is made of the same material as the flexible rib buffer isolation strip and is firmly attached with tile adhesive. Then, the edge of the slab hole is pressed over the buffer structure. Finally, flexible sealant is filled between the slab and the junction boxes and pipes. After the slabs are laid, they are cured for no less than 28 days. During the curing process, the quality of the slabs is checked regularly. If hollow spots or cracks are found, they are repaired. After the curing is completed, the surface of the slabs is cleaned to remove stains and adhesive residue, and then polished.

3. The method for laying a flexible, perimeter-wide cushioning slab with full-area anti-cracking and anti-expansion properties for rock slabs according to claim 1, characterized in that, The flexible screed buffer isolation zone is arranged in a wall-to-ground, fully enclosed manner. It is continuously installed around the perimeter of each slab and the slab paving area, without any breaks or gaps, forming a fully enclosed buffer isolation ring. The flexible buffer isolation zone on the wall is continuously installed along the height of the wall, extending from the ground base to the top elevation of the slab paving. The flexible buffer isolation zone on the ground is continuously installed along the perimeter of the ground, seamlessly connecting with the buffer isolation zone on the wall to form a closed structure integrating the wall and ground. At the same time, the cement mortar plaster layer on the wall, the semi-dry mortar layer on the ground, and the flexible screed buffer isolation zone are arranged side by side on the same layer.

4. The method for laying a flexible, perimeter-wide cushioning slab with full-area anti-cracking and anti-expansion properties for rock slabs according to claim 1, characterized in that, The leveling layer construction includes: The rigid leveling of the wall surface adopts a cement mortar rigid leveling layer. The flexible screed buffer isolation strip is used as a reference for layered plastering and leveling. The thickness of the leveling layer is adjusted according to the flatness of the base layer to ensure that the verticality deviation of the wall surface is ≤3mm / 2m and the flatness deviation is ≤3mm / 2m. The ground is leveled with semi-dry mortar. The semi-dry mortar is used for the flexible leveling layer. The semi-dry mortar has a mass ratio of cement:medium sand:water = 1:5:0.

35.

5. A method for laying slabs with full-circumference flexible buffering for crack and expansion protection as described in claim 2, characterized in that, The opening process includes: The hole location treatment involves setting up a flexible screed buffer isolation zone around the hole location. During construction, a ring control line is first marked around the hole location. The flexible buffer material is then cut into a ring shape and pasted within the ring control line area. The edge of the rock slab hole is then pressed over the flexible screed buffer isolation zone to form a local stress release area. At the same time, when drilling holes in the rock slab, round holes are drilled at the corners to reduce stress concentration, and metal parts are used for reinforcement. For door and window opening treatment, the flexible slab buffer isolation strip is set around the door and window opening, which is seamlessly connected with the full-circumference flexible slab buffer isolation strip of the whole house. The flexible slab buffer isolation strip at the external corner of the opening is rounded. When the rock slab is laid to the door and window opening, the edge overlaps the flexible slab buffer isolation strip. At the same time, an expansion joint is reserved between the rock slab and the door and window frame and filled with flexible sealant. The layout of rock slabs at the door and window opening should avoid narrow strips of bricks less than 1 / 3 of a whole brick. Non-whole bricks should be placed in concealed places. For the treatment of external corners, the external corners are treated by wrapping with the flexible buffer material. The width of the flexible buffer material is 40-50mm and the thickness is the same as the thickness of the wall leveling layer. When laying the slab, the external corners are treated with the begonia corner technique, with the edge of the slab overlapping the buffer material. At the same time, anti-crack corner strips are pasted at the external corners. For wall-mounted water and electricity trenching, expanded perlite is used for filling after the trenches are cut. During filling, the expanded perlite is filled into the trenches in layers and compacted in layers. The filling height is flush with the wall base. Then, an interface agent is applied to the trench surface, and the wall leveling construction is carried out to ensure that the trench area forms an integral whole with the surrounding base without obvious joints.

6. The method for laying a flexible, perimeter-wide buffer paving of slabs with full-area anti-cracking and anti-expansion properties according to claim 1, characterized in that, The construction of the flexible reinforced buffer isolation zone includes: Construction of flexible screed buffer isolation strip on the wall: During construction, the flexible screed buffer isolation strip is cut into strips with the same height as the wall surface, and is pasted on the wall base with tile adhesive. The pasting thickness is 1-2mm. The top of the flexible screed buffer isolation strip on the wall surface is flush with the top elevation of the rock slab, and the bottom is seamlessly connected with the flexible screed buffer isolation strip on the ground. During the construction of the flexible ground screed buffer isolation strip, the flexible screed buffer isolation strip is cut into strips with the same length as the perimeter of the ground and pasted onto the ground base layer, seamlessly connecting with the flexible ground screed buffer isolation strip on the wall to form a closed structure around the entire perimeter. After the flexible screed buffer isolation strip is installed, check the flatness and verticality. The deviation should be ≤2mm. If there is any deviation, make adjustments.

7. The method for laying a flexible, perimeter-wide cushioning slab with full-area anti-cracking and anti-expansion properties for slabs according to claim 1, characterized in that, The cleaning of the wall and floor base involves removing dust, oil, laitance, and loose debris from the base surface. For protruding parts of the base surface, use an angle grinder or chisel to level them. For recessed parts, use cement mortar to repair them. When the repair thickness is ≥10mm, it should be repaired in layers, with each layer not exceeding 10mm in thickness. If the flatness deviation of the base is large, greater than 30mm, overall leveling should be carried out first before subsequent construction. For the base of old buildings, if there is a risk of settlement, the base should be reinforced first before tiling construction.

8. A method for laying slabs with full-circumference flexible buffering for crack and expansion protection as described in claim 1, characterized in that, When laying out the squaring lines, ensure that the control lines are accurate and clear, with a squaring deviation of ≤2mm for the entire house and an elevation deviation of ≤1mm for the finished surface of the slab. Plug the flexible slab buffer isolation strip (which also serves as the slab's installation control line) around the perimeter of the slab to ensure accurate installation of the flexible slab buffer isolation strip. For large-area paving areas, it is recommended to set joint control lines every 6 meters, and the slab layout should be consistent with the joint control lines.

9. A method for laying slabs with full-circumference flexible buffering for crack and expansion protection as described in claim 1, characterized in that, When applying the interface agent, the order of application is: first the wall surface, then the floor surface; first the inside corners and outside corners, then the flat surfaces. Ensure even application, with no missed areas or accumulation. After application, allow it to dry completely. The standard for complete drying is that the interface agent surface is no longer sticky to the touch, and pressing with a finger leaves no obvious marks. The drying time should be adjusted according to the ambient temperature. When the temperature is below 10℃, the drying time should be extended.

10. A method for laying slabs with full-circumference flexible buffering for crack and expansion protection as described in claim 1, characterized in that, Before laying the slabs, inspect them and remove any with cracks, missing corners, or color differences. Clean the surface of the slabs of dust and stains. Apply a layer of tile adhesive to the back of the slab. After the tile adhesive is thoroughly mixed, use a notched trowel to apply the tile adhesive to both the leveling layer surface and the back of the slab. The tile adhesive on the back of the slab should be fully applied. Then, lay the slabs, adjusting their flatness and verticality. The gaps between the slabs should be controlled at 2-3mm. Use a tile leveler to level them, ensuring that the surfaces of adjacent slabs are flush. During the laying process, promptly clean up any excess tile adhesive from the slab surface. For slabs with a single side length >1200mm or a thickness <9mm, a crack-resistant pad can be laid between the leveling layer and the slab.

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