How to deal with the construction challenges of concrete laser leveling machines under special ground conditions?

  1. High-precision leveling: – With the help of a concrete laser leveling machine, the operation is carried out based on the precise plane reference formed by the laser beam. The laser receiver feedbacks the deviation information in real time, and the leveling machine automatically and accurately adjusts the scraper height and vibration frequency to ensure that the floor flatness error can be controlled within a very small range, usually within ±2mm, providing a solid foundation for subsequent processes, especially suitable for precision manufacturing workshops, high-end storage facilities and other places with strict requirements on flatness. 2. Excellent wear resistance: – In the initial setting stage of concrete, diamond wear-resistant materials are evenly spread. With its high hardness and high strength, it is closely integrated with the surface of concrete. After smoothing and finishing, a solid and wear-resistant protective layer is formed, which greatly improves the wear resistance of the floor, effectively copes with high-intensity wear scenes such as heavy-loaded vehicles and frequent cargo handling, and significantly extends the service life of the floor. 3. Unique corrugated compartment joint design: – Abandoning the traditional straight compartment joint, the corrugated compartment joint is adopted. This design not only meets the needs of concrete expansion and contraction and prevents cracks, but also has a better stress dispersion effect than the straight joint, which can effectively reduce the risk of cracks caused by uneven foundation settlement and temperature changes. It can also add a unique visual beauty to the floor and enhance the overall image of the site. 4. High efficiency of construction: – All construction links are closely connected, from base treatment, concrete pouring, laser leveling, to wear-resistant material spreading, compartment joint setting and subsequent maintenance, all in one go and in an orderly manner. Laser leveling technology greatly improves the leveling efficiency. Compared with traditional manual leveling methods, the construction speed can be increased several times, which greatly shortens the overall construction period and reduces the project construction cost.   It is widely used in various large-scale and high-load indoor and outdoor concrete floor projects, such as large industrial plants, logistics distribution centers, airport aprons, exhibition halls, port terminal cargo yards and other places, especially for projects with high requirements for floor flatness, wear resistance and crack resistance, and the expectation of a certain aesthetics.   1. Laser leveling principle: – The laser transmitter releases a rotating laser beam to form a high-precision horizontal control surface. The laser receiver installed on the leveling machine continuously captures the laser signal, compares the real-time elevation of the floor with the laser reference surface, and transmits the generated deviation signal to the control system, prompting the hydraulic mechanism of the leveling machine to respond quickly, accurately control the scraper, vibrator and other components, and realize fast and accurate leveling and vibration of the concrete, achieving a high-precision leveling effect. 2. The wear-resistant principle of corundum: – When the concrete is in the initial setting state and the surface has a certain viscosity, the spread corundum particles can be embedded in the surface of the concrete. With the subsequent leveling and finishing operations, the corundum is deeply combined with the concrete. With its excellent hardness and wear resistance, it builds a solid defense line against wear on the concrete surface, protecting the main structure of the floor from friction loss in daily use. 3. The anti-cracking principle of the corrugated compartment joint: – Compared with the straight joint, the curved shape of the corrugated compartment joint can more effectively disperse the stress during the expansion and contraction of the concrete. When the concrete needs to expand and contract due to factors such as temperature rise and fall and foundation settlement, the corrugated joint guides the stress to disperse along the curve to avoid excessive stress concentration, thereby reducing the possibility of cracks and ensuring the integrity and stability of the floor.     1. Construction preparation: – Technical preparation: Read the construction drawings in detail, clarify the technical requirements, prepare a rigorous construction plan, and organize construction personnel to conduct technical briefings. – Site preparation: Thoroughly clean up debris and accumulated water on the construction site, ensure that the base is flat, and take reinforcement measures for weak bases; reasonably plan the temporary drainage system for construction; design the concrete pouring and leveling route and the layout of the compartment joints according to the shape and area of ​​the site. – Material preparation: Strictly purchase high-quality cement, sand, admixtures, diamond wear-resistant materials, etc. according to design requirements, strictly inspect the raw materials to ensure that the quality meets the standards; prepare sufficient water and electricity for construction. – Equipment preparation: Comprehensively debug concrete laser leveling machines, concrete mixing equipment, transportation equipment, wear-resistant material spreaders, trowels, etc. to ensure that the equipment is in good operating condition; accurately calibrate the laser system to ensure that the emitted laser plane matches the floor design elevation. 2. Base treatment: – Deeply clean the base to remove dust, oil and other pollutants; compact the base with a roller or compacting machine, with a compaction degree of not less than 90%; use concrete or mortar to repair and level the local potholes and holes on the base, so that the base leveling error is controlled within ±10mm. 3. Concrete pouring: – Accurately weigh the raw materials according to the designed mix ratio, use a forced mixer to fully mix the concrete, and the mixing time is not less than 90 seconds to ensure the uniformity of the concrete; use pumping or self-unloading to transport the concrete to the construction area, control the pouring speed, prevent concrete segregation, and the pouring thickness should be slightly higher than the designed floor elevation by 10-20mm to reserve operating space for subsequent leveling. 4. Laser leveling: – Turn on the laser leveling machine and keep moving at a constant speed, usually controlled at 1-2m/min; the operator flexibly adjusts the scraper height and vibration frequency of the leveling machine in real time according to the signal fed back by the laser receiver to ensure that the concrete surface is flat and vibrated densely; the leveling work of adjacent areas must be completed before the initial setting of the concrete, and the overlapping construction width must be no less than 10cm to ensure the integrity of the floor. 5. Spreading of wear-resistant materials: – When the concrete is initially set (generally there are slight footprints when stepping on it, and the sinking depth is about 3-5mm), use a special spreader to evenly spread the diamond wear-resistant material on the floor surface according to the specified amount, and the spreading thickness is approximately 3-5mm; during the spreading process, the spreading speed and direction must be accurately controlled to prevent the accumulation or leakage of wear-resistant materials, and ensure that the spreading uniformity reaches more than 90%. 6. Smoothing and finishing: – After the wear-resistant material is spread, use the trowel to smooth it immediately. The trowel should be operated in a crisscross pattern to make the wear-resistant material fully blend with the concrete. The number of smoothing times should be no less than 3 times. As the concrete continues to harden, when there is no water stain on the surface and it feels slightly hard when pressed with fingers, it should be smoothed manually. Aluminum alloy rulers, trowels and other tools should be used to make the floor surface bright and smooth. 7. Corrugated compartment joint setting: – Before the concrete is finally set, according to the pre-designed compartment joint layout, a special mold or cutting equipment is used to make a corrugated compartment joint. The mold or cutting tool should ensure that the depth of the joint reaches 1/3 – 1/4 of the thickness of the concrete slab, and the joint width is controlled at 5 – 10mm. During the production process, the shape of the joint should be regular and smooth, and the anti-cracking and aesthetic functions of the compartment joint should be effectively exerted. 8. Maintenance: – After finishing and setting the compartment joints, the floor shall be maintained in time by covering with plastic film, spraying curing agent or laying water straw mats, etc. The maintenance time shall not be less than 7 days. During this period, the concrete surface must be kept moist to avoid cracks caused by water loss; warning signs shall be set up during the maintenance period, and vehicles and pedestrians are strictly prohibited from passing on the floor that does not meet the strength requirements.   1. Flatness Quality Control: – Before construction, use professional instruments to finely calibrate the laser system to ensure the accuracy of the laser plane; during the construction process, regularly use a 2m ruler and feeler gauge to check the flatness, at least once every 100-200 square meters, and adjust the leveler immediately if deviation is found; after finishing, use a laser flatness meter to comprehensively test the flatness of the floor to ensure that it meets the design requirements. 2. Wear-resistant performance quality control: – Select diamond abrasive wear-resistant materials strictly according to design requirements, and carefully check quality certification documents; in the spreading process, strengthen on-site supervision to ensure that the spreading amount and uniformity meet the standards; after maintenance, on-site wear resistance tests can be carried out, such as grinding a certain area with a grinding wheel, observing the wear condition, and judging whether the wear resistance meets the standards. 3. Partition seam quality control: – When making partition seams, strictly control the depth, width and shape of the seams, and use precise measuring tools for inspection; regularly inspect the partition seams to check whether there are debris blocking them. If problems are found, clean and repair them in time to ensure that the partition seams function normally.   1. Organize construction personnel to participate in safety training to familiarize them with the operating specifications and safety precautions of various construction equipment (such as laser leveling machines, concrete mixers, cutting equipment, etc.). 2. Set up safety warning signs in conspicuous locations on the construction site to clearly divide the construction area and non-construction area to prevent unrelated personnel from entering the construction danger zone. 3. Regularly conduct safety inspections on construction equipment, focusing on electrical insulation, mechanical protection devices, etc., to ensure the safe operation of equipment and prevent safety accidents caused by equipment failure. 4. Provide construction personnel with complete personal protective equipment, including safety helmets, safety shoes, gloves, etc., to ensure the personal safety of construction personnel.   1. Classify and collect solid waste such as concrete residues and discarded diamond abrasive material packaging bags generated during the construction process, and regularly transport them to designated garbage disposal sites. 2. Reasonably plan construction time, avoid high-noise concrete mixing, equipment operation and other operations during residents' rest periods, and take noise reduction measures when necessary, such as installing silencers on equipment. 3. Strengthen the control of dust on construction sites, cover material storage sites, close transport vehicles, regularly sprinkle water to reduce dust, and maintain a clean environment on the construction site.   1. Economic Benefit: – High-precision laser leveling combined with efficient construction process greatly shortens the construction period and reduces labor, equipment rental and other cost expenditures; diamond abrasive wear-resistant floor reduces the cost of later maintenance and floor replacement; corrugated compartment seams reduce the cost caused by crack repair, and the comprehensive economic benefits are significant. 2. Social Benefit: – Provide high-quality floor solutions for large-scale industrial, logistics and other projects to meet the needs of industry development; reduce construction noise, dust and other pollution, and help environmental protection and urban sustainable development.   In a large automobile manufacturing plant construction project, this construction method was used, with a construction area of ​​more than 80,000 square meters. The floor flatness error is precisely controlled within ±1.5mm, meeting the requirements for the installation of precision equipment on the automobile production line; the diamond abrasive wear-resistant layer effectively resists the wear caused by the transportation of production equipment and vehicle driving; the corrugated compartment seams are beautiful and have no cracks, providing a solid guarantee for the efficient and stable operation of the plant, and have been highly praised by the owner. For example, in the renovation project of a busy port terminal cargo yard, this construction method also achieved remarkable results. A large area of ​​floor was quickly built with excellent wear and crack resistance, which met the high-intensity operation needs of the port and greatly improved the cargo yard operation efficiency.

  Emery floor is widely used in industrial plants, parking lots, warehouses and other places due to its high wear resistance, high strength, anti-slip and beautiful appearance. However, in order for the emery floor to achieve the expected use effect and life, in addition to high-quality materials and scientific construction technology, maintenance work before and after construction is also crucial. This article will conduct an in-depth discussion on the maintenance of diamond floor before and after construction, in order to provide valuable reference for relevant practitioners. 1. Foundation treatment before construction The foundation treatment before the construction of diamond floor is a key step to ensure the quality and service life of the floor. First, the base floor should be thoroughly cleaned to remove oil, dust, debris, etc., to ensure that the surface of the base is dry, flat and free of slurry. Secondly, the strength and density of the base should be checked. If there are defects such as cracks and potholes, they should be repaired and leveled in time. In addition, for the newly poured concrete base, the diamond floor should be fully maintained to sufficient strength before the construction of diamond floor. During the foundation treatment process, the following points should also be noted: First, ensure that the bonding performance between the base layer and the diamond floor material is good to avoid problems such as delamination and sanding; second, control the moisture content of the base layer to avoid excessive or low moisture content affecting the quality of the floor; third, for special base layers, such as renovation of old floors, appropriate treatment plans should be formulated according to specific circumstances. 2. Preparation of construction materials The construction materials of diamond floor mainly include diamond aggregate, cementitious materials, additives, etc. During the material preparation stage, it should be ensured that the selected materials meet the design requirements and have good wear resistance, compression resistance, anti-slip properties, etc. At the same time, strict quality inspections should be carried out on the materials to ensure that there are no impurities, no lumps, no expiration, etc. During the transportation and storage of materials, attention should be paid to moisture-proof, sun-proof, and anti-pollution measures to prevent the materials from being damp, lumped or polluted and affecting the use effect. In addition, during the material mixing process, the water-cement ratio and mixing time should be strictly controlled to ensure the uniformity and fluidity of the mixture. 3. Construction process control The construction process of diamond floor includes primer construction, diamond aggregate laying, compaction, maintenance and other steps. During the construction process, the construction specifications and process flow should be strictly followed to ensure quality control of each link. First, the primer construction should be uniform and without omission to enhance the adhesion between the base and the diamond floor. Secondly, when laying diamond aggregate, the laying thickness and uniformity should be controlled to avoid uneven thickness or hollowing. At the same time, compaction should be carried out in time after laying to improve the density and strength of the floor. Finally, during the maintenance stage, the maintenance time and method should be reasonably controlled according to the ambient temperature and humidity conditions to ensure that the floor is fully hardened and dried. 4. Initial maintenance and protection After the construction of diamond floor is completed, initial maintenance is an important link to ensure the quality of the floor and extend its service life. During the maintenance period, heavy objects should be avoided from rolling on the floor or scratching with sharp objects to avoid damage to the floor. At the same time, the floor surface should be kept clean and dry to prevent moisture and dirt from penetrating and affecting the quality of the floor. In the initial maintenance stage, some measures can also be taken to improve the performance and aesthetics of the floor. For example, applying a layer of transparent or colored coating on the floor surface can increase the gloss and wear resistance of the floor; setting angle steel or corner guard strips on the edge of the floor can prevent damage caused by the impact of equipment such as forklifts. 5. Long-term maintenance and care The long-term maintenance and care of diamond sand floor is the key to ensuring its performance and service life. In daily use, the floor surface should be cleaned regularly to remove oil, dust and other debris to keep the floor clean and beautiful. At the same time, avoid using corrosive substances such as strong acids and alkalis to clean the floor to avoid damage to the floor. For floor areas with wear, scratches and other problems, they should be repaired and renovated in time. When repairing, the repair material compatible with the original floor material should be selected, and the operation should be carried out in accordance with the construction specifications to ensure the quality of the repair. In addition, according to the use and wear of the floor, the overall renovation can be carried out regularly to restore the performance and aesthetics of the floor. 6. Problem Solving and Prevention During the use of diamond sand floor, some problems may occur, such as delamination, sanding, cracking, etc. For these problems, the causes should be analyzed in time and corresponding solutions should be taken. For example, for delamination problems, it may be caused by improper base treatment or poor material quality. Therefore, the base treatment and material quality control should be strengthened; for cracking problems, it may be caused by improper construction or changes in ambient temperature. Therefore, the construction process should be optimized and the ambient temperature should be controlled. At the same time, in order to prevent the occurrence of problems, daily inspections and maintenance should be strengthened. During inspections, attention should be paid to changes in the flatness, glossiness, wear resistance, etc. of the floor, and potential problems should be discovered and dealt with in a timely manner. During maintenance, a reasonable maintenance plan should be formulated according to the use and wear of the floor, and regular cleaning, repairs and renovations should be carried out. 7. Summary and Precautions In summary, the maintenance work before and after the construction of diamond sand floor is of great significance to ensure the quality and service life of the floor. In actual operation, attention should be paid to the basic treatment before construction, the preparation of construction materials and the control of construction process to ensure the quality of construction; at the same time, it is necessary to strengthen the initial maintenance and long-term maintenance and maintenance work, and timely discover and deal with problems; finally, through the implementation of problem solving and preventive measures, ensure that the diamond floor always maintains good performance and appearance. It should be noted that when carrying out the maintenance of diamond floor, relevant specifications and safety requirements should be followed to ensure the safety of operators. In addition, a reasonable maintenance plan should be formulated according to the specific use environment and requirements to ensure that the diamond floor can meet the needs of long-term use. When summarizing the key points of maintenance before and after the construction of diamond floor, we can summarize the following points: First, ensure that the base is properly treated, which is the basis for ensuring the quality of the floor. The flatness, strength, moisture content and other indicators of the base must meet the construction requirements, otherwise it will have an adverse effect on the subsequent use of the floor. Secondly, pay attention to the selection and quality control of materials. High-quality materials are the key to ensuring the performance and service life of the floor. When selecting materials, full consideration should be given to performance indicators such as wear resistance, compression resistance, and anti-slip properties, and the supplier should be ensured to have a good reputation and stable supply capacity. Furthermore, the control of the construction process is also crucial. During the construction process, operations should be carried out strictly in accordance with the construction specifications and process flow to ensure quality control at each link. In particular, the compaction and maintenance links are of great significance for improving the density and strength of the floor. In addition, daily maintenance and care work should not be ignored. Regular cleaning, inspection of the wear of the floor, and timely repair and renovation can effectively extend the service life of the floor. At the same time, the use of corrosive substances such as strong acids and alkalis to clean the floor should be avoided to avoid damage to the floor. Finally, it is equally important to prevent the occurrence of problems. By strengthening daily inspections, optimizing construction processes, and controlling ambient temperature, potential problems can be discovered and dealt with in a timely manner to avoid the expansion and deterioration of problems. To sum up, the maintenance work of diamond abrasive floor before and after construction is a systematic and complex task, which requires comprehensive consideration of multiple factors. By strengthening the work in grassroots treatment, material selection, construction process control, daily maintenance and care, as well as problem prevention, the quality and service life of diamond abrasive floor can be guaranteed to the greatest extent.

Finishing concrete is not an easy job. During construction, workers' hands, backs and knees are vulnerable to injury. The advent of the trowel allows construction workers to stand while the concrete is finished. Based on the size of the project, the number of people and the customer's requirements for the surface layer, the construction party may consider purchasing a trowel. If you are a construction party specializing in concrete staining, staining or home improvement polishing, maybe you don't need to buy a ride-on trowel (double disc machine). This type of troweling machine is not only expensive, but also has a high hardness of the ground after finishing, so the above-mentioned type of ground does not have such high requirements. In fact, a walk-behind trowel is sufficient to meet the work requirements of pulping and finishing small-area floors. Under what circumstances should you consider investing in a trowel? In general, construction area is an important consideration. "Even a small-area project can use a trowel, even if the project is only a few hundred square meters. As long as the construction area reaches 100 square meters, you must use a trowel, and if it exceeds 300 square meters, you have to consider using a small ride-on trowel From another perspective, the work efficiency of a single-disk trowel is equivalent to that of three construction workers using traditional manual finishing tools such as scrapers. It seems that the biggest advantage of the trowel is to increase the speed of application. But this is only a one-sided understanding of the advantages of the trowel. What the trowel gives is not a simple speed increase but the efficiency when dealing with large-scale construction. Furthermore, the troweling machine allows the construction party to choose a more appropriate time to start the machine when dealing with large-scale construction, instead of having to start early due to the need to consider the overall area of construction like traditional construction. Troweling machine operation steps: 1. Before use, check whether the motor, electrical switch, cable and wiring are normal and comply with the regulations, and install a leakage protector. 2. Before use, check and clean up the sundries on the wipe plate to avoid the whole machine from jumping when in use. 3. After turning on the power, carry out a test run, the blades will rotate clockwise and must not be reversed. 4. Operators should wear insulating shoes and gloves, and the cables should be picked up by auxiliary personnel, who should also wear insulating shoes and gloves. Pay attention to prevent electric shock accidents caused by the cable insulation layer being broken. 5. The troweling machine breaks down, and it needs to be shut down to cut off the power before it can be repaired. 6. The trowel should be stored in a dry, clean and non-corrosive gas environment. The handle should be placed in the specified position, and no rough loading and unloading should be allowed during transfer. Construction Notes: 1. During construction, pay attention to the temperature of the motor reducer box not exceeding 80° 2. The engine oil in the turbine box needs to be checked frequently. If the oil level is lower than the oil level, please refuel in time. After each use, the equipment should be cleaned in time, especially the smears should be stored in a dry, clean and non-corrosive environment. When the smear is worn to 30mm on one side, loosen the nut, turn the smear around and re-tighten the screw to achieve the purpose of two pairs of use. Angle of smear Rotate the hand wheel to adjust the angle of smear to achieve the ideal effect of rough smearing. If you need to shut down during construction, please turn off the power in time. When the gasoline engine stops, press the switch on the handle in time to stop. The ground effect after the troweling machine is more uniform, the construction speed is faster, and the operation is more convenient. Working with a hand-held spatula for a long time will easily fatigue the knees, shoulders and elbows of the construction workers, which will affect the construction effect. To put it simply, the use of a trowel makes the difficult operation easier, and it is the best equipment for finishing the floor.