How can the performance and operation of a concrete laser leveling machine be optimized
September 10, 2025
How can the performance and operation of a concrete laser leveling machine be optimized 2
Regarding the performance and operation optimization of concrete laser leveling machines, this is a systematic project that integrates equipment maintenance, advanced technology, and precise operation. Optimization can be approached from two perspectives: equipment performance optimization and operating method optimization.
Ⅰ. Optimizing Equipment Performance
Equipment performance is the foundation for ensuring construction quality and efficiency. Optimization aims to ensure that the equipment is always in optimal working condition.
1. Daily Maintenance and Care (Basic and Critical)
Laser Transmitter: This is the "eyes" and "brains" of the equipment.
Calibration: Perform a calibration check daily before starting work. Secure the receiver to a pole and verify that the elevation set by the laser transmitter matches the actual measurement. Even the slightest deviation can lead to extensive construction failure. Cleaning and Protection: Keep the laser transmitter lens clean to prevent dust and moisture from affecting the laser beam's accuracy. Store properly to prevent collisions. Leveling Head (Scraper and Vibrator):
Check for wear: Regularly inspect the scraper for wear. Excessive wear can lead to reduced leveling accuracy and material waste. Replace or adjust promptly. Vibration Frequency Uniformity: Check that the vibrating rod is functioning properly to ensure uniform concrete compaction density across the entire leveling head to avoid localized honeycombing. Chassis and Travel System:
Cleaning: After each construction phase, thoroughly clean any solidified concrete debris from the chassis, as this will significantly affect the smoothness of the next construction phase. Check Fasteners: Check all connecting components and bolts for looseness to ensure the structural stability of the equipment. Tires/Tracks: Check tire pressure and track wear to ensure stable ground contact.
2. Upgrades and Modifications (Increasing Performance)
Multiple Laser Receivers: Equipping the leveling head with multiple laser receivers allows for more comprehensive monitoring of the head's real-time posture. This is particularly important for levelinging over large spans, effectively preventing errors caused by leveling head deformation. Intelligent Control System Upgrade: Monitor control system updates provided by equipment manufacturers. Newer systems may feature more advanced algorithms, enabling smoother control, fault diagnosis, and even grade control. High-Strength Components: For components subject to severe wear, such as scrapers, consider using more wear-resistant high-strength alloys or polyurethane materials to extend their service life.
II. Optimizing Operational Methods
Advanced equipment requires scientific operating methods to maximize its effectiveness.
1. Pre-construction Preparation (The more thorough the preparation, the smoother the construction)
Precise benchmark setting: This is the foundation of all work. A professional surveyor must use a high-precision level or total station to determine the position and elevation of the laser transmitter according to the design drawings. Ensure that the transmitter is set up in a stable, interference-free area. Formwork (steel formwork) installation: The top elevation of the formwork must be precisely aligned with the designed elevation of the laser leveling and securely fixed. The flatness of the formwork directly affects the construction quality of the edge areas. Base preparation and reinforcement mesh laying:
The base layer (usually a crushed stone base) must be compacted and leveled; otherwise, uneven concrete thickness may occur, leading to cracking due to settlement. The steel mesh should be laid flat and supported with blocks to ensure its correct position in the concrete and prevent it from scraping against the rebar and shifting during equipment movement. Concrete material control:
Slump: This is the key to success! The slump of concrete used for laser leveling must be strictly controlled, typically between 140-160mm. Excessive slump results in high concrete flow, causing backflow on both sides of the leveling as the leveling moves, forming waves. Excessive slump results in poor flow, high resistance to the leveling, prone to cracking, and difficulty maintaining density. Aggregate Size: Avoid using coarse aggregate with excessively large particle sizes to prevent it from clogging the leveling blade or vibrator.
2. Fine Handling During Construction
Unloading and Initial Spreading: Concrete should be evenly distributed during unloading to avoid piles. Initial spreading can be performed using a small excavator or manually, with a thickness slightly above the design elevation to reduce the load on the leveling. Equipment Path Planning: The operator should plan the leveling's path, typically adopting an S-shaped or spiral path, to avoid sharp turns on unset concrete, which can cause surface disturbance and elevation deviation. Matching Travel Speed and Vibration Frequency:
The equipment should maintain a constant and slow speed. Excessive speed will result in incomplete vibration and surface ripples. Adjust the vibration frequency in real time based on the concrete slump. For high slumps, reduce the frequency appropriately; for low slumps, increase the frequency to ensure adequate vibration. Overlap Treatment: There should be a sufficient overlap between the two leveling paths (typically 10-20cm) to ensure a smooth transition at the joint with no height differences. Operator Skills: The operator must not only be able to operate the machine but also understand the characteristics of concrete. They should be able to observe the concrete's response (such as slurry seepage and surface gloss) to determine whether the vibration is sufficient and the speed is appropriate, allowing for immediate adjustments.
3. Post-Construction Collaboration
Timely Curing: After initial setting, laser-leveled concrete floors should be immediately sprayed with a curing agent or covered with a film to retain moisture and prevent plastic shrinkage cracks caused by rapid water loss. The optimized leveled floor is denser, so early curing is particularly important. Connecting with Subsequent Processes: Time the joint cutting process appropriately (usually within 6-24 hours after construction, depending on the temperature and concrete strength development) to prevent random cracking.
Summary: Optimize your checklist
Optimize Category
Specific Measures
Purpose
Equipment performance
Daily laser system calibration
Ensures absolutely precise elevation control
Inspect and replace the leveling scraper
Ensures levelinging results and smoothness
Thoroughly clean the chassis of concrete debris
Prevents elevation errors and equipment damage
Operation
Strictly control the concrete slump (140-160mm)
Ensures proper fluidity, easy leveling, and no backflow
Precisely set the formwork and laser reference
Provides a foundation for high-quality construction
Drive at a constant and slow speed, matching the vibration frequency
Ensures adequate vibration and compaction of concrete
Operator experience and fine-tuning
Addresses unexpected on-site situations and enables dynamic optimization
Timely water conservation and maintenance
Prevents surface cracking and ensures overall quality
By combining strict equipment maintenance, scientific construction preparation and refined operating procedures, the performance of the concrete laser leveling machine can be maximized, ultimately achieving ultra-high flatness, high density and high efficiency construction results.
Note:The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.
About the Author: Shandong Vanse Machinery Technology Co., Ltd.
Shandong Vanse Machinery Technology Co., Ltd. is a high-tech manufacturer specializing in concrete construction machinery, including laser screeds and related equipment. The company integrates R&D, production, and global sales, with products exported to over 60 countries and widely used in infrastructure projects worldwide.
How does the control system control the operating status and parameters of the concrete laser leveling?
The control system controls the operating status and parameters of the concrete laser leveling mainly through the following methods: 1. Sensor technology: Laser leveling machines are equipped with a variety of sensors, such as laser receivers, level sensors, vibration sensors, etc., to monitor the height, levelness and vibration status of concrete. These sensors feed real-time data back to the control system. 2. Embedded system: The em bedded system processes the data received from the sensor and determines the operating status of the leveler based on preset parameters. If data that does not meet the preset conditions is detected (for example, the concrete is too high or too low, or the equipment vibrates too much), the system will automatically adjust the operating parameters of the leveling or issue an alarm to prompt operator intervention. 3. Human-machine interface: The operator observes the real-time data and graphics provided by the control system through the human-machine interface, such as equipment location, concrete thickness, etc., and can manually adjust operating parameters. In addition, when an error occurs in the system, the interface will display the corresponding error code or information for operator reference. 4. Communication technology: The control system exchanges data with the leveling machine through wireless or wired communication technology to achieve remote monitoring and operation. For example, operators can remotely control and adjust parameters of a concrete laser leveling from the control room. 5. Database technology: The control system is usually equipped with a database to store information such as historical data and error codes of equipment operation. This data can be used for troubleshooting, performance analysis and quality control. 6. Safety protection: The control system also includes a safety protection mechanism to ensure that the leveling machine can automatically shut down or take other safety measures under abnormal circumstances, such as overload protection, overheating protection, etc. 7. Programmable logic controller (PLC): In some more advanced systems, programmable logic controllers are used to control various actions and logical processes of the leveling machine. Through programming, complex control logic and automated processes can be realized. To sum up, the control system controls the operating status and parameters of the concrete laser leveling machine by comprehensively using various technologies and mechanisms to ensure that the equipment completes its work efficiently and safely.
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October 19, 2023
How serviceable is a concrete laser leveling machine ?
The maintainability of a concrete laser leveling refers to its ability to be easily and quickly repaired, replaced or improved in the event of failure or performance degradation. The serviceability of concrete laser levelings will be discussed in detail below. 1. Failure rate of concrete laser leveling machine The failure rate of a concrete laser leveling is an important factor in its maintainability. Generally speaking, the lower the failure rate of the equipment, the better its repairability. The occurrence of failure mainly depends on the reliability, stability and manufacturing materials and processes of the equipment. Concrete laser leveling machines with high reliability and stability generally use high-quality components and advanced manufacturing processes to reduce failure rates. 2. Ease of maintenance of concrete laser leveling machine Ease of repair refers to the ease with which equipment can be repaired conveniently and quickly when it malfunctions. How easy a concrete laser leveling is to repair depends on several factors, including its design, manufacturing and service manuals. Some well-designed concrete laser levelings can improve their ease of maintenance by simplifying the maintenance process, reducing the difficulty of maintenance and providing detailed maintenance manuals. 3. Maintainability of concrete laser leveling machine Maintainability refers to the ability of equipment to undergo regular maintenance and upkeep during its life cycle. Regular maintenance and upkeep can help your concrete laser leveling maintain good performance and extend its service life. Some concrete laser leveling machines are designed with ease of maintenance and care in mind, such as easy-to-replace parts, easy-to-clean structures, etc., which all help to improve their maintainability. 4. Repairability of concrete laser leveling machine Repairability refers to the ability of equipment to recover through repair or replacement when it malfunctions or degrades in performance. Generally speaking, the repairability of a concrete laser leveling depends on factors such as its modular design, standardized interfaces, and the ease of replacing parts. By adopting modular design, the fault location can be limited to specific modules, reducing the impact on the overall equipment; standardized interfaces facilitate the interchange of parts between equipment; the convenience of replacing parts helps shorten maintenance time and reduce costs. . 5. Upgradeability of concrete laser leveling machine Upgradability refers to the ability of equipment to expand functions and improve performance during technological development. As technology continues to advance, concrete laser levelings also need to be continuously upgraded to meet new needs. The upgradable concrete laser leveling can expand its functions or improve its performance on the original basis, thereby extending its service life and improving its overall performance. 6. Maintenance training of concrete laser leveling machine Maintainability training refers to relevant training provided to equipment users to help them understand equipment maintenance methods and precautions. For concrete laser leveling machines, users need to understand the operation methods, daily maintenance, common troubleshooting and emergency handling of the equipment. By providing detailed maintenance training, we can help users better understand equipment maintenance methods and improve equipment reliability and service life. Summarize: The maintainability of a concrete laser leveling has an important impact on its stability and efficiency in the production process. The maintainability of concrete laser levelings can be improved by optimizing the design, selecting high-quality components and providing detailed maintenance training. In addition, users also need to formulate a reasonable maintenance plan based on the characteristics of the equipment and the use environment, and perform regular maintenance and inspections to ensure good performance of the equipment and extend its service life.
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November 27, 2025
The entire process and key control points of the construction of the diamond sand wear-resistant floor
There are various methods for basement floor construction. Among them, the construction of diamond sand floor and diamond sand floor with curing agent is favored by many real estate projects due to its economic, wear-resistant, pressure-resistant, anti-pollution and easy-to-clean features. However, improper manufacturing processes can also lead to quality issues and potential risks. This article will respectively introduce the diamond sand wear-resistant floor from the perspective of technology and the prevention and control of common problems. 1. Diamond sand floor Compared with ordinary concrete floors, diamond sand floors have better wear resistance, compressive strength and impact resistance, and have a longer service life. However, from the perspective of microstructure, the surface of the diamond sand floor is relatively rough, and the capillary structure of concrete has a low resistance to the penetration, pollution and corrosion of substances such as acids, alkalis and oils. 2. Corundum + cured floor The construction of adding curing agent to the diamond sand floor. When the diamond sand floor is applied with a curing agent, it better makes up for the above deficiencies. Moreover, as the curing agent penetrates and forms a film, it enhances the integrity of the original surface, significantly improving its surface strength and wear resistance. After long-term use, it is obviously superior to the ordinary diamond sand floor in terms of cracking, powdering, and dusting, and is also easier to clean. It has extremely strong wear resistance, pressure resistance and impact resistance The diamond sand floor itself has excellent wear resistance. After adding a curing agent, the strength and hardness of the floor are further enhanced, and its wear resistance, pressure resistance and impact resistance are also significantly improved, and the durability of the floor is greatly enhanced. 2) Prevent sanding and dusting The main advantage of the diamond sand reinforced floor is its ability to prevent sanding and dusting. After the application of the curing agent, the surface hardness (indicated by the diameter of the indentation) and wear resistance (indicated by the length of the grinding pit) can be effectively enhanced. The surface becomes denser and has better integrity, which can effectively prevent sanding and dusting. 3) Waterproof, oil-proof and anti-corrosion The surface of a common diamond sand floor has pores that are hard to see with the naked eye. Water, oil and other corrosive liquids can seep into the interior of the floor through these holes and gaps. The most notable feature of the curing agent is its excellent sealing property, just like coating the floor with a film to prevent erosion. 1. The surface of the floor is firmly combined with the base layer, without any hollowing or sanding phenomena. 2. Surface layer quality: Uniform color, no obvious color difference, no scratches, no slag inclusions. The surface must not have cracks and hollowing is not allowed. 3. Gloss requirements: Achieve medium to high brightness, and the lamp should have a reflective effect when illuminated. 4. Joint: Uniform width, and the inside of the joint should be thoroughly cleaned. 5. The hardness of the floor should reach above 6.5 on the Mohs scale (tested by a hardness tester). 6. The trachoma rate shall not exceed 3 per square meter. 1. The strength of the concrete shall not be lower than C25. 2. The smallest possible water-cement ratio. A water-cement ratio that is too high can cause bleeding on the concrete surface and reduce the compressive strength of the concrete surface. Therefore, the water-cement ratio should be as small as possible, generally controlled below 0.5. 3. Commercial concrete should be used as much as possible. If on-site mixed concrete is used, its slump should be controlled at 1 to 3cm. The slump of commercial concrete is between 12 and 14cm. The diameter of the larger crushed stones shall not exceed 30mm. 4. When the concrete thickness is greater than 8cm, ordinary concrete should be used for pouring; when the concrete thickness is less than 8cm, fine aggregate concrete should be used for pouring. 5. Concrete should be leveled immediately after pouring, with a flatness of no more than 2mm within a 2-meter range. 6. Before the surface layer construction, the base concrete and vibration slurry should be sufficient (not less than 5mm). 7. The mud content of sand and gravel in concrete shall not exceed 2%. 8. After vibration grouting, the bleeding of the concrete should be uniform. If there are water pits, they must be removed and the surface leveled again; otherwise, the flatness of the diamond sand floor construction cannot be guaranteed. 1. Construction of diamond sand floor 1) The ground concrete is poured in sections and leveled immediately after pouring. When multiple locations are being poured simultaneously, pay attention to the construction sequence being carried out in one direction and consider the consistency of the mating surfaces. ② Concrete should be leveled with a long roller or a long straightedge after being pushed flat. Three to five hours after the concrete is poured, it should be observed that there is no bleeding on the surface and it has reached the initial setting state. 2) Use a mechanical trowel to tap the slurry in a round motion. For fine areas, use a wooden trowel to trim the edges. The main purpose is to smooth the concrete surface and reduce the floating slurry. Pay attention to troweling in the same direction as pouring. 3) Sprinkle the wear-resistant aggregate in two batches. In the first batch, evenly spread two-thirds of the wear-resistant material on the already troweled cement floor. 4) For the second time, evenly spread the remaining 1/3 of the wear-resistant material on the surface of the concrete, and use a mechanical trowel with a disc installed to work crisscross and cross at least twice. 5) Use a mechanical trowel (metal disc) to smooth it out multiple times back and forth. For the fine corners and edges, use a manual trowel in coordination with the construction. The time for the next process should be determined based on the temperature and humidity. 6) When the surface of the floor begins to harden, use a mechanical trowel with a metal blade to grind and smooth it, and repeat this operation 3 to 4 times. (Construction workers must wear soft flat shoes to avoid damaging the surface. The fine corners and edges should be polished by hand.) 7) Water curing should be carried out on the polished wear-resistant floor (mainly to prevent the evaporation of surface moisture and ensure the stable growth of the wear-resistant material's strength). The curing period is 7 days. 8) After the surface has cured for a certain period of time (5 to 6 hours after the completion of the wear-resistant material floor), use a mechanical trowel equipped with a metal blade for the final polishing and leveling. 9) Mold and compartment cutting (this can be done according to the actual situation on site and the owner's needs). Mold removal can be carried out the day after the completion of the diamond sand floor. During the operation, be careful not to damage the edge of the floor. The size of the compartments shall be determined by Party A on the third day after the completion of the diamond sand floor. 2. Application of penetrating liquid hardener (commonly known as curing agent) The original color of the diamond sand floor should be cured for more than 14 days, while the colored diamond sand floor usually needs to be cured for 28 days. Only after the color has matured can the penetrating liquid hardener be applied. The specific measures are as follows: Before construction, clean and remove debris, oil stains, paints, curing agents, etc. from the ground. If there are any pits or cracks, they should be repaired in advance with cement-based jointing mortar and maintained for 3 days. If no repair is needed, proceed with the construction directly. 2) Sprinkle water on the base layer until it is fully moistened. Do not sprinkle too much. 3) Use a 50-mesh resin grinding disc to grind the base layer, removing the floating slurry and stains on the base layer to make it free of roughness and gradually smooth. 4) After the 50-mesh grinding is completed, use a 150-mesh resin grinding disc for grinding. After grinding, use a high-power vacuum cleaner to suck up the mud and sewage on the surface of the base layer. 5) Sprinkle water on the surface of the base layer and grind it with a 300-mesh resin grinding disc (the ground should be ground evenly in a grid pattern, and the machine's pushing speed should be one step per second to grind off the remaining materials and fine scratches on the ground). After grinding, grind it with a 500-mesh grinding disc. Then, use a vacuum cleaner to suck up the wastewater and ventilate to dry the base layer. 6) After the base layer is dry, if the surface turns slightly white, apply the concrete sealant and hardener. Sprinkle the material evenly and spread it evenly with a mop. Keep the base layer surface moist for 30 minutes. If there is rapid penetration in some areas and it has dried, sprinkle the material again and use a mop to evenly moisten the base layer. 7) After 30 minutes, the surface of the concrete sealant and hardener begins to thicken. Water should be sprinkled on its surface and pushed back and forth with a long-bristled brush or floor scrubber to dilute the excess hardener and better penetrate into the base layer. After one hour, the excess material and water should be sucked dry with a vacuum cleaner to ensure that the base layer is dry for more than 12 hours. 8) After 12 hours, sprinkle water on the base surface of the completed construction material, and grind it with a 500-mesh resin grinding disc to remove the excess material. Then, grind it with a 1000-mesh grinding process. After grinding, use a vacuum cleaner to suck up the wastewater. 9) After 12 hours, the base layer has basically dried. Then, it is ground and polished with a 2000-mesh resin grinding disc to gradually give its surface a lustrous appearance. 10) For each mesh size, the grinding discs should be cross-ground 3 to 5 times in both the longitudinal and transverse directions. 11) Special treatment ① Corner and edge treatment: Large machinery can only be used for large-scale grinding. For corner and edge positions, a portable Angle grinder should be used for grinding and polishing, following the same method as for large-scale construction. When the base layer has poor strength and severe sanding, it is necessary to reinforce the base layer first, and then proceed with the normal construction process. First, use a 300-mesh resin grinding disc to remove the floating slurry on the surface of the base layer. Then, evenly sprinkle the concrete sealant and hardener to ensure it fully wets and penetrates into the base layer. After 12 hours, when the concrete sealant and hardener has cured and the strength of the base layer has improved, follow the normal process: 50-mesh grinding (water grinding) → 150-mesh grinding (water grinding) → 300-mesh grinding (water grinding) → construction materials → 12-hour drying and curing → 500-mesh grinding (water grinding) → 1000-mesh grinding (water grinding) → 2000-mesh grinding (dry grinding). The aesthetic effect of the floor cannot be achieved without meticulous control during the construction process. Besides strictly adhering to the corresponding techniques and methods, the prevention of common quality problems also requires attention. If the construction is not done properly, many problems will occur during later use. Now let's talk about the common quality problems of the diamond sand wear-resistant floor and how to prevent them. There are mainly three reasons for the color difference of corundum: 1) Material selection issues; 2) The materials were not spread in several portions, the amount of materials used was insufficient, and the thickness was uneven. 3) Maintenance issues: The use of covering with plastic film for maintenance led to uneven evaporation of ground moisture. The area where the film comes into contact with the floor is whitish, while the area where it does not touch the floor is normal in color. Preventive measures Choose a manufacturer with stable and reliable product quality and a good reputation. 2) The spreading of materials should be carried out strictly in accordance with the requirements of the briefing in several portions, with a usage of no less than 5kg/m². 3) Plastic film curing is strictly prohibited. During summer construction, water spraying curing can be adopted in several batches (with an interval of 2 to 3 hours). The allowable deviation of ground flatness is ≤2.5mm/2m in both longitudinal and transverse directions. The reasons for the deviation during construction are: 1) The template setup is out of tolerance; 2) The concrete part was not leveled in accordance with the standard. 3) The wear-resistant material is not evenly spread. Preventive measures 1) Strictly calibrate the elevation lines. Set up steel rods every 2 meters or so. The elevation of the steel rods should be the same as that on the longitudinal seam formwork. Check with a level. 2) The joints should be roughened and leveled in advance. When pouring new concrete, the levelness should be consistent with that of the already poured ground. Any low-lying areas should be replenished and filled in a timely manner. 3) Wear-resistant aggregates should be spread in two portions. The first dosage should be two-thirds of the total dosage. Ensure that the mixture falls evenly. Do not throw it forcefully to avoid the separation of aggregates and cement. After the wear-resistant material has absorbed a certain amount of moisture, it is ground and dispersed with a grinding machine and then combined with the base concrete slurry. For the second spreading, apply the remaining one-third in a direction perpendicular to that of the first spreading. When spreading, first use a straightedge or a straight scraper to measure the levelness, and adjust the uneven areas of the first spreading. After spreading, immediately smooth and polish it, and repeat the grinding machine operation at least twice. When the grinding machine is in operation, it should be carried out alternately in the longitudinal and transverse directions, evenly and orderly, to prevent material accumulation. The third time mainly involves repair treatment. For low-lying areas, materials are replenished and leveled. For corners and edges that cannot be covered by the grinding machine, manual flattening and smoothing are adopted. There are the following situations regarding ground cracks: If the initial setting time of concrete is not well controlled and the diamond sand wear-resistant aggregate is scattered when the moisture content of the concrete is relatively low, it is easy to cause cracks after the construction is completed. 2) Improper construction methods, insufficient thickness of the wear-resistant layer (corundum layer), rapid water loss (such as excessive construction environment atmosphere, etc.), resulting in volume shrinkage and linear shrinkage, causing cracks or hollowing. 3) Improper maintenance: After the completion of construction, the ground was not maintained within the prescribed time or was not adequately watered for maintenance. When the concrete temperature is relatively high, pouring cold water for curing can also cause cracks. Note: When using only the diamond sand floor, it is recommended to use a maintenance agent (oily and film-forming effect) to maintain the floor. If the corundum is reinforced (or epoxy), water curing can be directly adopted. 4) The contraction joint was cut late, and cracks appeared due to thermal expansion and contraction. Under normal circumstances, it is advisable to cut the expansion joints 24 to 48 hours after the completion of the construction of the corundum floor. If it is too late, as the hardness of the floor gradually increases, the floor is prone to "cracking" and developing cracks during the cutting process. 5) If the spacing of the division joints is too large, cracks may also occur. Preventive measures 1) Strictly control the time of the first sprinkling of materials; 2) The concrete layer and the wear-resistant layer (corundum) are constructed simultaneously. 3) The curing time shall be no less than 14 days; 4) Reasonably control the cutting time; The spacing of the division joints should generally not exceed 6m*6m. Cause of formation 1) The roughening and polishing processes are rough. 2) Inadequate maintenance and insufficient maintenance time; 3) The spreading time of wear-resistant aggregates is not well controlled. Preventive measures 1) Use a grinding machine to thoroughly smooth, compact and roughen the ground for no less than three times, and use a floor trowel to thoroughly smooth and level the ground for no less than three times. 2) The curing time shall be no less than 14 days; 3) Strictly control the spreading time of wear-resistant materials. The timing of spreading wear-resistant materials varies as needed, depending on factors such as climate, temperature, and concrete mix ratio. Spreading too early will cause the wear-resistant material to sink into the concrete and lose its effect. If it is spread too late, the concrete will gradually lose its adhesive force due to solidification, preventing the wear-resistant material from fully bonding with it. The most convenient way to determine the time for spreading wear-resistant materials is to let your feet sink about 5mm when stepping on the ground, and then you can start the first spreading work. The moisture at the edges of walls, columns, doors and formwork disappears more quickly. It is advisable to prioritize the application of water to prevent the effect from being reduced due to water loss. 1. Local damage: Clean the damaged area thoroughly, soak it in water to moisten it, then repair it with a putty made of styrene-butadiene latex mixed with water and a hardener material that has screened out the aggregates. Finally, apply the styrene-butadiene latex mixed with water emulsion. 2. Large-scale damage: According to actual needs, lines can be drawn and sawn on the damaged area, the surface layer and part of the base layer can be chiseled off, then the area can be cleaned and moistened, the plain cement slurry can be swept, concrete can be poured, and finally the surface layer of the diamond sand hardener can be applied. 3. Floor peeling: The surface of the wear-resistant diamond sand floor curls and peels. Remedial measures: Cut and chisel off the peeling area (chiseling it into a pitted surface), spray water on the pitted area to moisten it, then apply repair mortar of the same grade as the concrete and press it down to level the ground. Finally, apply a curing agent. 4. Remedial measures for cracks in diamond sand floor: 1) Cracks in areas with requirements for anti-seepage, impact resistance and wear resistance on the surface should undergo surface treatment. 2) For cracks that can affect the integrity, strength, impermeability and steel bar corrosion of the structure, grouting treatment should be carried out. 3) For cracks that endanger the safe operation of buildings, in addition to grouting treatment, other reinforcement measures should also be taken when necessary. 4) Cracks that are sensitive to temperature should be treated when the crack opening is relatively large in the later stage of the low-temperature season. 5) Flexible materials must be used to treat active cracks. Note: The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.