How does a concrete laser leveling accurately control the thickness and amount of concrete?

Speaking of after-sales service, in fact, the after-sales service of the entire flooring industry has always been lacking. When there is a problem with a customer's equipment, there is always the problem of the manufacturer not responding in time, or even not responding at all. There have been many customers in the past who were unable to receive timely after-sales service due to problems when purchasing concrete laser leveling machines from other manufacturers. This not only delayed the construction period, but also caused a certain degree of losses. As a service benchmark in the flooring industry, Wanshi Machinery has always put the needs of customers first and adhered to its "three ones" commitment. In fact, after-sales service is not just about helping customers, but also about helping yourself. For a company, credibility and reputation are crucial, and after-sales service is the cornerstone of credibility and reputation. Wanshi Machinery fulfills the Three Ones promise, "response within a quarter of an hour, arrive within one day, and solve the problem within one day." Only a quarter-of-an-hour response can reassure customers, arrival within one day can ensure that the construction period is not delayed, and solving problems within one day is a reflection of technical strength. These three points bring confidence to customers and guarantee their decision to choose Wanshi Concrete Laser Leveling Machine. The customer's problems are the company's problems, and the customer's confidence is the company's confidence. The two are closely connected, which is the relationship between water and boat. Wanshi Machinery always keeps customers in mind and adheres to the three one promises. Not only do we want customers to choose Wanshi Machinery, but we also want customers to have no regrets about their choice.

Recently, some users have received feedback that there are still some dangers in the process of using the laser leveling machine. In fact, the leveling machine does have some dangers, so this actually requires everyone to use the laser leveling machine. When leveling the machine, we must always put safety first. Only in this way can we avoid danger. So how to ensure the safety of laser leveling machine operation? See below for the answer. If the laser leveling machine is difficult to level during use or the material is too high, it must be stopped first, and the road surface should be further sorted before continuing to use. It cannot be used forcibly, otherwise the equipment will be damaged and the road will be damaged. Construction is also bad. Therefore, it is necessary to ensure the normal operation of the equipment and ensure the stability and smoothness of the road surface. In the construction of high-grade pavement, mechanized construction runs through the whole process, and the cooperation and coordination between various machines is especially important. Once a problem occurs, the work will be stopped. Therefore, the performance of the laser leveling machine needs to meet the use standards, and the construction must be carried out in strict accordance with the operation, and overall arrangements should be made to maximize the benefits of construction and equipment, and to better complete tasks. After manually laying the concrete material on the built formwork, it is placed on the road by the crane or the walking mechanism of the leveling machine itself, the laser leveling machine walks along the track, and the screw propeller moves the horizontal axis of the frame back and forth Then, the vibrator immediately behind the screw propeller vibrates and lifts the road surface; then, the roller of the machine performs multiple back and forth rolling on the road surface for leveling work, and the completion The pavement is leveled. Before using the laser leveling machine, pay attention to check whether the power wiring is safe, whether the machine parts are tightened, whether the control system is working, and whether the lubrication of the bearing shaft is in place. During the operation, it is necessary to pay attention to whether the placement of the laser leveling machine on the track is balanced. Before starting work, the power supply should be connected to the line for trial operation. 70% of the completion of pavement engineering tasks depends on the allocation of mechanical equipment resources. The strength of the laser leveling machine, its performance, the reasonableness of the configuration, and the level of mechanized construction directly restrict the project quality and economic benefits. The above method of safe operation of the laser leveling machine is introduced here for everyone. I hope you can get some substantial reference value from our article. If you have any other questions, please feel free to consult us. We will answer them one by one.

– Before construction, the site should be thoroughly cleaned to remove debris, garbage and loose parts of the original ground. For example, for the renovation project of old factory buildings, all oil stains and broken concrete blocks on the ground need to be cleaned up. For the base, if there is any unevenness, it needs to be repaired and compacted. If the base is a soil foundation, it should be layered and rolled according to the design requirements to make its compaction degree reach more than 90%, providing a solid foundation for concrete pouring. – At the same time, the drainage slope should be set. According to the purpose of the site and the design requirements, the general drainage slope is not less than 0.3% – 0.5%. Through precise measurement and layout, determine the drainage direction and slope control points to ensure smooth drainage and avoid water accumulation affecting the quality of the floor.   – Select qualified concrete raw materials, including cement, sand and gravel, admixtures, etc. Cement should be selected with strength grades that meet the design requirements, such as ordinary Portland cement P.O42.5 or P.O52.5, and the stability and setting time of cement should be checked. The particle size and mud content of sand and gravel should meet the specifications. For example, the maximum particle size of coarse aggregate should not be greater than 31.5mm, and the mud content should not exceed 1%; the mud content of fine aggregate should not exceed 3%. – Strictly design and test the concrete mix ratio. According to the use function of the floor (such as heavy-duty industrial floor, ordinary warehouse floor, etc.), strength requirements and construction environment, the best mix ratio is determined through laboratory trial mixing. During the construction process, concrete mixing should be carried out strictly according to the mix ratio, and the performance indicators such as slump of concrete should be tested regularly. The slump is generally controlled between 120-180mm to ensure good working performance of concrete.   – Before construction, fully commission the concrete laser leveling machine. Check the operating status of the engine or motor to ensure the normal operation of the power system. For example, the engine should start quickly, run smoothly, and have no abnormal noise and shaking. For the laser system, it is necessary to perform precise calibration and adjust the height and angle of the laser transmitter so that the laser plane it emits is consistent with the design elevation of the floor. – Calibrate the scraper, vibrator and other working parts of the leveler. The flatness error of the scraper should be controlled within ±1mm, and the frequency and amplitude of the vibrator should be adjusted according to factors such as the slump and thickness of the concrete. Generally, the vibration frequency is between 3000-5000 times/minute, and the amplitude is between 3-5mm to ensure that the concrete can be fully vibrated and leveled.   – Use appropriate concrete pouring methods, such as pumping or self-unloading. During the pouring process, the pouring speed and height should be controlled to avoid segregation of concrete. For example, when pumping concrete, the discharge port height should not exceed 1.5m, and the concrete should be evenly distributed on the site. – Use the spreading function of the laser leveler or cooperate with other spreading equipment to spread the concrete evenly on the site. The thickness of the material should be slightly higher than the design elevation, generally 10-20mm higher, to leave a margin for the leveling work. During the material laying process, care should be taken to avoid the accumulation of concrete in one place, resulting in excessive local thickness.   – When operating the laser leveling machine, the equipment should be kept moving at a uniform speed, and the speed is generally controlled between 1-2m/min. The operator should adjust the scraper height and vibration frequency of the leveling machine in time according to the laser signal and the automatic leveling function of the equipment. For example, when the laser receiver detects that the ground is higher than the design elevation, the leveling machine automatically adjusts the scraper to descend and scrapes off excess concrete; when it is lower than the design elevation, the scraper rises, and the vibrator strengthens the vibration to fill the low-lying area with concrete. – During the leveling process, attention should be paid to the connection of adjacent construction areas. The leveling work of adjacent areas should be completed before the initial setting of the concrete, and the flatness and density of the connection should be guaranteed. Generally, the overlapping construction method is adopted, and the overlapping width is between 10-20cm to ensure the flatness and integrity of the entire floor.   – Professional quality inspection personnel are equipped to check the flatness, density and elevation of the floor in real time during the construction process. Use tools such as level, 2m ruler and feeler gauge for inspection. For example, for each construction area (such as 100-200 square meters), use 2m ruler and feeler gauge to check the flatness, and the flatness error should be controlled within ±3mm; use level to check the elevation, and the elevation error should be controlled within ±5mm. – For parts that do not meet the quality requirements, timely adjustments and repairs should be made. If it is found that the local flatness exceeds the tolerance, it can be repaired by using a small leveling tool or manual smoothing method; for areas with insufficient density, use a flat vibrator to vibrate again or an inserted vibrator to supplement the vibration.   – After the concrete is leveled, the finishing treatment is carried out according to the use requirements of the floor. If it is an industrial floor that requires wear resistance, mechanical smoothing and manual fine smoothing can be carried out after the initial setting of the concrete. Mechanical troweling generally uses a driving trowel, and the number of troweling passes is not less than 3 times, so that the floor surface reaches a certain gloss and hardness. – After finishing, timely maintenance should be carried out. You can use methods such as covering with plastic film, straw mats or spraying curing agents. The curing time is determined according to factors such as the type of concrete and the ambient temperature, and is generally not less than 7-14 days. During the curing period, the concrete surface should be kept moist to avoid cracks in the concrete due to water loss.   – During the curing period, the floor should be protected as a finished product, and warning signs should be set up to prevent people and vehicles from walking or working on the floor that does not meet the strength requirements. For example, for heavy-duty industrial floors, heavy vehicles are strictly prohibited from passing when the concrete strength does not reach more than 70% of the design strength. – After the curing period, quality acceptance is carried out in accordance with design requirements and relevant standards. The acceptance content includes indicators such as the flatness, strength, and thickness of the floor. For example, the thickness and strength of the floor can be tested by core sampling, and the strength should reach the designed strength level; a laser flatness meter is used to test the flatness of the entire floor to ensure that the flatness of large-area floors meets quality requirements.