How to ensure flatness during concrete pavement paving?

The technical construction of laser leveling machine is a brand-new design concept. The application of leveling machine has become a popular trend in the modern concrete industry. However, what is the technical solution of laser leveling machine? Let's introduce it in detail below. 1. Requirements for concrete ❶ Concrete must be produced by commercial concrete production plants, transported or pumped to the floor project site. ❷ Concrete specifications: C25~C30 concrete, the 28-day strength is not less than 25MPa, according to the design requirements. ❸ Water-cement ratio: no greater than 1. Do not add water at will during the feeding process. ❹ Cement: Use ordinary Portland cement not less than the grade. ❺ Aggregate: Well-graded aggregates should be used. Use crushed granite or pebbles as coarse aggregate, with the maximum diameter not larger than 25mm. Clean river sand is used as fine aggregate, and the fineness modulus is appropriate. ❻ Concrete mix ratio: cement dosage should not be less than 350Kg/m3. In order to avoid surface quality problems, the sand rate should be controlled at 35%~40% ❼ Concrete slump: 14+2cm, maximum 16cm ❽ Setting time: The initial setting time should be controlled at 3-5 hours. 2. Construction coordination requirements ❶ The concrete feeding speed should be determined according to the ground thickness and pouring area. The minimum hourly feeding speed should be determined. For a floor with a thickness of 200 mm, if the one-time pouring width reaches 40 meters, the minimum feeding speed should reach 40 cubic meters per hour. Otherwise, cold joint problems will occur and the quality of the ground construction will be affected. ❷ Manual cooperation requires workers to remove the concrete delivered to the floor as soon as possible and roughly level it. In addition, manual leveling is required for areas around the formwork, walls, columns, trenches, equipment foundations, floor drains or pipelines that cannot be leveled. Generally, 3-4 workers are required to cooperate with the construction (provided by Party A). ❸ Other precautions: To ensure the flatness of the ground, please note: ① The slump of the concrete delivered to the floor must be consistent each time. ② Ensure that the concrete supply speed reaches 40 cubic meters per hour or above, and the initial setting time of each batch of concrete must be consistent. ③ Ensure that the formwork elevation is accurate and cannot be disturbed during construction. ④Environmental cooperation. The newly constructed concrete floor should not be exposed to sunlight, wind, rain and other environments that are detrimental to the health of concrete. ❹ Other requirements: A. In order to avoid random cracks on the floor, shrinkage joints should be cut as early as possible (within 24 hours). B. While the laser leveling machine is being constructed, there must be no welding machines or reflective objects (such as glass windows) on site. C. The foundation must reach a certain hardness to ensure that the laser leveler does not collapse when operating on the ground. D. The height of the ground in the factory building is calibrated by Party A. The points must be evenly distributed and there must be no error in level. E. Concrete pouring must be carried out according to the requirements of Party B's technical personnel.

Concrete laser leveling machine construction operation steps The concrete laser leveling is an indispensable and efficient tool in modern building construction. Its precise operation ability can significantly improve the flatness of the ground and lay a solid foundation for the quality and aesthetics of subsequent projects. This article will introduce the concrete laser leveling machine in detail from seven aspects: preliminary preparation and inspection, equipment installation and debugging, laser system calibration, concrete pouring and initial leveling, laser leveling machine operation, construction quality inspection, and equipment cleaning and maintenance. Construction operation steps. 1. Preliminary preparation and inspection Adequate preparation is crucial before proceeding with concrete laser leveling construction. First, conduct a comprehensive inspection and planning of the construction site to ensure that the site is flat, the size of the space meets the construction requirements, and there is no interference from debris. Clean the site to ensure the construction surface is clean and tidy, and provide a good working environment for subsequent concrete laying and leveling work. At the same time, necessary protection is provided to the construction site to prevent the external environment from affecting the construction quality. In addition, the concrete materials required for construction are inspected to ensure that the quality and quantity of the materials meet the design requirements. If problems are found, the supplier should be contacted in time for replacement or supplementation to ensure the smooth progress of the construction. 2. Equipment installation and debugging Equipment installation and debugging are key steps to ensure the normal operation of the laser leveler. First of all, install the concrete laser leveling reasonably according to the actual conditions of the construction site. During the installation process, attention should be paid to the stability and safety of the equipment to prevent the equipment from shifting or toppling during work. After the installation is complete, debug the equipment. During the debugging process, it is necessary to check whether the various functions of the equipment are normal, such as laser sensors, control systems, etc. At the same time, the flatness, cutting depth and other parameters of the leveling system are debugged to ensure that the equipment can achieve the preset construction goals and requirements. 3. Laser system calibration Laser system calibration is a key link in the construction of concrete laser leveling machines. First, install and debug the laser system to ensure the laser horizontal line is accurate. Then, set target values for concrete height and flatness according to project needs. The calibration accuracy of the laser system directly affects the leveling effect, so the operating procedures must be strictly followed during the calibration process to ensure the accuracy and stability of the laser system. During the laser system calibration process, you also need to pay attention to the safe use of the laser transmitter. Avoid direct exposure of personnel to the laser beam to prevent eye injury. At the same time, regularly check the performance of the laser transmitter to ensure that it is working properly. 4. Concrete pouring and initial leveling Concrete pouring and initial leveling are the basic steps in the construction of concrete laser leveling. First, concrete is poured according to the design and requirements. During the pouring process, the quality and uniformity of the concrete must be ensured to avoid problems such as cracking and deformation. After pouring is completed, use a vibrator or other tools to vibrate the concrete surface to ensure that the surface is smooth and free of bubbles. Then proceed with the initial leveling of the concrete. Preliminary leveling mainly uses manual or mechanical means to initially level the concrete surface to eliminate large height differences and uneven parts. The quality of the initial leveling directly affects the subsequent laser leveling effect, so it needs to be taken seriously to ensure that the concrete surface after the initial leveling is smooth and has no obvious unevenness. 5. Laser leveling machine operation Laser leveling machine operation is the core link in the entire construction process. Before operation, the equipment needs to be checked again to ensure that all instruments and equipment are operating normally. Start the laser leveling machine and operate the leveling machine to perform leveling operations according to the guidance of the laser system. During the operation, parameters such as the flatness and cutting depth of the laser leveler need to be adjusted according to actual needs to obtain the best leveling effect. At the same time, operators need to maintain a high degree of attention and concentration, and pay close attention to the instructions of the laser system and the changes in flatness of the concrete surface. Once differences in height or uneven parts are found, machine parameters or operating methods need to be adjusted in time to ensure the leveling quality. In addition, you need to pay attention to safe operations during the operation. Operators should wear protective equipment and abide by safety procedures to prevent accidents. 6. Construction quality inspection After completing the laser leveling machine operation, the leveled concrete surface needs to be inspected. The inspection content mainly includes flatness, elevation and smoothness. First, use measuring tools to measure the flatness of the concrete surface to ensure that it meets the design requirements. Secondly, check whether the elevation meets the predetermined standards to avoid unevenness. Finally, observe the smoothness of the concrete surface to ensure there are no obvious roughness or scratches. If problems are found during the inspection, they need to be dealt with promptly. For parts where the flatness does not meet the requirements, handheld leveling tools can be used to repair and adjust; for parts where the elevation does not meet the standards, the laser leveling operation needs to be performed again; for rough or scratched surfaces, grinding or grinding can be used Processed by polishing and other methods. 7. Equipment cleaning and maintenance After the construction is completed, cleaning and maintaining the concrete laser leveling is an important part of ensuring the long-term stable operation of the equipment. First, turn off the power to the device and make sure it comes to a complete stop. Then, use cleaning tools to clean the equipment and remove dust, dirt and other debris on the surface. The internal components of the equipment need to be inspected and maintained regularly to ensure their normal operation. In addition, laser systems need to be inspected and maintained. Clean the laser transmitter and receiver regularly to ensure stable and accurate performance. If any problems or faults are found, they should be dealt with promptly or contact professionals for repair. In short, the construction operation steps of the concrete laser levelinging machine involve multiple links, and each link needs to be taken seriously and operated carefully. Through standardized operations such as preliminary preparation and inspection, equipment installation and debugging, laser system calibration, concrete pouring and initial leveling, laser leveling machine operation, construction quality inspection, and equipment cleaning and maintenance, we can ensure the safety of concrete laser leveling machine construction. Quality and efficiency provide a solid foundation for construction projects. In terms of equipment cleaning and maintenance, in addition to daily cleaning work, the laser leveling machine should also be comprehensively inspected and maintained regularly. This includes checking the tightening of each component of the equipment to ensure there are no loose or damaged parts; checking and replenishing the lubrication system of the equipment to ensure normal operation of the equipment; checking the electrical system of the equipment to prevent the occurrence of electrical faults. . In addition, with the continuous advancement of technology, concrete laser leveling machines are also constantly being updated. New equipment and technology may lead to higher construction efficiency and better construction quality. Therefore, operators should continue to learn and master new technologies to adapt to the development needs of the industry. In terms of construction quality, in addition to relying on the precise operating capabilities of the laser leveler, we should also pay attention to quality control during the construction process. This includes quality control of construction materials, monitoring of the construction process, and acceptance of construction results. Only by comprehensively controlling construction quality can the long-term effectiveness of the project be ensured. In addition, the construction operation of concrete laser levelinging machine should also pay attention to environmental protection and energy saving. During the construction process, environmental damage and pollution should be minimized, stolen sources should be rationally utilized, and energy consumption should be reduced. This is not only a manifestation of corporate social responsibility, but also a requirement for sustainable development. In summary, the standardization and refinement of concrete laser leveling construction operation steps are the key to ensuring construction quality and efficiency. Through strict control of preliminary preparation and inspection, equipment installation and debugging, laser system calibration, concrete pouring and initial leveling, laser leveling machine operation, construction quality inspection, and equipment cleaning and maintenance, we can ensure that the warm soil laser leveling machine Play the greatest role in the construction project and provide a strong guarantee for the smooth progress of the construction project. In future construction projects, with the continuous advancement and application of technology, concrete laser levelings will become more intelligent, automated and efficient. We expect it to play a greater role in future construction and contribute more to the quality and efficiency of construction projects. Finally, it needs to be emphasized that the installation and maintenance of a concrete laser leveling requires professional knowledge and skills. Therefore, operators should receive professional training. Be familiar with the performance and use of equipment, and operate in strict accordance with the lifting procedures. At the same time, enterprises should also strengthen the maintenance and management of equipment to ensure the normal operation and long-term use of equipment. To sum up, the construction operation of concrete laser leveling machine is a complex and delicate process, which requires the operator to have professional knowledge and rigorous working attitude. Through standardized machine operation and meticulous management, it can be ensured that the concrete laser leveling machine plays its greatest role in construction projects, providing a strong guarantee for the quality and efficiency of construction projects. In the future development, with the continuous emergence of new technologies and new materials, concrete laser leveling machines will also face more challenges and opportunities. We should continue to strengthen technology research and development and innovation, promote the application and development of concrete laser leveling machines in construction projects, and make greater contributions to the progress of the construction industry. At the end of this article, we once again emphasize the importance of concrete laser leveling construction operations and look forward to its playing a more important role in the future construction industry. Let us look forward to more innovations and breakthroughs in this field together, injecting new vitality and impetus into the development of construction engineering.

The concrete laser leveling is an efficient and precise concrete construction equipment. Its design and manufacture need to take into account many factors to ensure the performance, stability and durability of the equipment. The design and manufacturing of concrete laser leveling machines will be discussed below from several aspects. Overall design The design of the concrete laser leveling should take into account the environment and construction needs of the construction site. For example, for large-scale construction projects, you need to choose equipment with a larger construction area; for small construction environments, you need to choose compact equipment. In addition, factors such as the equipment's weight, power consumption, noise and emissions must also be taken into consideration during design. Laser technology The concrete laser leveling machine uses advanced laser technology to achieve high-precision concrete leveling. Among them, the laser transmitter will emit a laser beam, which will illuminate the receiver to form a reference line. Through the control system, the equipment can monitor and adjust the position and height of the baseline in real time. Therefore, special attention should be paid to the laser and control system during the design and manufacturing process to ensure that its performance is stable and reliable. Mechanical structure The mechanical structure of the concrete laser leveling machine includes scrapers, driving wheels and driven wheels. The scraper is used to scrape the concrete flat, and the driving wheel drives the scraper to work. Driven wheels are used to support and balance equipment. In addition, it also includes power system, lubrication system and safety protection system. The design and manufacturing of the mechanical structure should ensure stable, safe and reliable operation of the equipment. Control System The control system of the concrete laser leveling machine includes controllers, sensors and operating interfaces. The controller is used to control the operation mode and actions of the equipment, the sensor detects the status and position of the equipment, and the operation interface provides human-computer interaction functions. The design and manufacturing of the control system must ensure precise equipment control and easy operation. Manufacturing process The manufacturing process of concrete laser levelinging machine includes casting, processing, welding, assembly and other links. During the casting process, the structure and usage environment of the equipment must be taken into consideration, and appropriate materials and processes must be selected; during the processing process, the accuracy and parallelism of the equipment must be ensured; during the welding process, attention must be paid to welding quality and deformation issues; during the assembly process, the Factors such as equipment operation stability and maintenance convenience. The quality of the manufacturing process directly affects the performance and service life of the equipment, so all aspects of the manufacturing process must be strictly controlled. Quality inspection Concrete laser levelings require quality testing during the design and manufacturing process to ensure that the performance and quality of the equipment meet requirements. Quality inspection includes appearance inspection, functional inspection, performance inspection and safety inspection and other aspects. Appearance inspection mainly detects whether the appearance of the equipment is beautiful and has no obvious defects; functional inspection mainly detects whether the functions of the equipment are complete and normal; performance inspection mainly detects whether the performance indicators of the equipment meet the design requirements; safety inspection mainly detects whether the safety protection devices of the equipment are Whether it is effective and whether the safety performance meets the standards, etc. Quality inspection is an important part of ensuring the quality of equipment and must be strictly controlled. In short, the design and manufacture of concrete laser leveling machines need to take into account many aspects, including overall design, laser technology, mechanical structure, control system, manufacturing process and quality inspection. Only through careful design and strict manufacturing can high-performance, high-quality concrete laser leveling machines be produced to meet different construction environments and construction needs.