Technical & Industry Knowledge Base

Laser leveling machine manufacturers to introduce to you what to do with this equipment: first check the equipment before use, to ensure that all functions of the equipment are normal, but also adjust the laser reference point before you can use it. After paving, technicians are required to evaluate the ground and determine the flatness before completing. ^-^ 1, preparation work (1) After the base layer is processed, the equipment is debugged on the laser paver, and the fixed reference level is drawn according to the original level; the non-woven fabric is laid, the side mold is supported, the laser emitter is set, and the ground is ground according to the original level. The elevation is introduced into the laser leveler. (2) conveying concrete Using the merchandise, the tanker transports the merchandise to the garage entrance and exit, and then transports it to the construction site with a three-wheeled dump truck. (3) Elevation Calibration The floor elevation is checked using a hand-held laser receiver, and the elevation is introduced into the laser paver to adjust the reference point (±0.00) on the leveler. 2, concrete paving Pouring steps: (1) After the formwork is supported, the chamber should be cleaned one day in advance and rinsed with water before pouring concrete. When pouring, drain the water, sweep the cement slurry or interface agent. Obvious water accumulation is strictly forbidden at this time. If there is, it must be removed carefully to spread the concrete. (2) After the concrete is put down, it is initially leveled, and the level of leveling is preferably 3 cm above the elevation. Then level it with a laser paver. The corners that are not flattened can be flattened with a gasoline-type flattening ruler or manually. 3) When the warehouse near the wall is pouring, wait until the leveling machine has passed, and then scrape it with a scraper in time. And so on. (4) For the area where the concrete mixer truck cannot be opened to the site, a tractor is used to transport the concrete. After the pouring is completed, the floor light collection construction is started when the concrete is initially set. (5) When the warehouse near the wall is pouring, wait until the leveling machine has passed, and then scrape it with a scraper in time. And so on. (6) For areas where the concrete mixer truck cannot be opened to the site, tractors are used to transport concrete. After the pouring is completed, the floor light collection construction is started when the concrete is initially set. 3. The laser signal received by the laser paver receiver (10 times/second frequency) automatically adjusts the elevation in real time to ensure that the construction elevation is always at the set standard. Because the laser transmitter is fixed after being set up, it can ensure that the construction of a large area of the ground does not cause cumulative errors. 4. During the construction, the operator uses the handheld laser receiver to detect the ground after the machine is constructed, and once again ensure that the flatness error is within the controllable range.

We found that many users use laser level leveling machines, but they often only know what to use, but the subsequent maintenance and maintenance has basically not been done. I don’t know that maintenance and maintenance are actually for the leveling machine. An important step is because the correct maintenance steps are an important prerequisite for ensuring that the leveling machine can be used efficiently. Therefore, while using the laser leveling machine, hoping that you will not forget to do the maintenance work. ^-^ ( Vanse YZ30-4E Boomed leveling Leveling Machine) Maintenance method of laser leveling machine: 1. After the work is finished, please use the arm button to manually lift the machine head and then push the construction site. It is forbidden to push the machine under the condition that the vibration leveling part is in contact with the ground to avoid damage to the vibration plate. 2. After the construction is completed, it is necessary to flush the laser leveling machine with a high-pressure water gun in time (the water gun is strictly prohibited from being directly aligned with the mesh part of the fuselage to prevent water from entering the inside of the fuselage, causing short circuit, etc.). 3. The place where the laser leveling machine is placed must be kept dry, and no debris or flammable or explosive materials should be piled around. 4, the leveling machine's battery also needs to pay attention to, if not used together for a long time, make sure to remove all the batteries from the host and receiver and store them properly. The transmitter is equipped with a rechargeable battery and the charging time is eight hours. 5. During the use of the laser leveling machine, please try to charge the battery after it is fully used. When charging, try to ensure that it is full for 8 hours. The charging time is recommended to be 12 hours, and the charging should be 8 hours later. To avoid damage to the battery and the transmitter is full, please unplug the power plug in time. 6. If the laser signal is lost during the construction process, the concrete laser leveler needs to be restarted, and the interval time needs to be more than ten seconds. 7. If the laser leveling machine is placed on a stable surface when not in use for a long time, grease should be added once a week for each bearing part. Lubricating oil should be added frequently at each chain to maintain good lubrication. At the same time, care should be taken to avoid sand and other impurities. Get the chain at the chain to prevent premature damage to the chain. The laser leveler should be inspected and maintained once a month or at the end of each construction period. Should always pay attention to the degree of tightness of the V-belts and chains. When loose, it should be adjusted in time. The fastening bolts should also be frequently spread to prevent loosening. Regarding the maintenance method of the laser leveling machine, introduce it to you here. I believe that everyone has already understood it very clearly after reading it. If you want to know more about the leveling machine, you can continue to pay attention to our website, we will to provide you with more information on this aspect. ^-^

The concrete construction process should be familiar to everyone. In general, the concrete construction process is the preparation (production) of concrete–concrete transportation (transport)–concrete pouring (concrete)–concrete maintenance (conservation), In this chapter, we mainly share the three parts of the concrete pouring process, which is divided into the foundation concrete pouring construction process, the wall column concrete construction process. And the beam and slab concrete construction process, so that everyone can understand the concrete parts of these important parts in detail. Pouring construction technology and process, in order to master the concrete construction rhythm in the actual concrete pouring process, so that the real-time control in the process, there are inspections and acceptances have been rectified, to ensure the concrete pouring molding effect and beauty, to achieve excellent quality! Section 1: Foundation pouring construction technology In the following chapters, we will introduce the concrete materials and the matters needing attention during transportation. This section will directly introduce the construction process of the foundation rafting. Before the official start, everyone can think about concrete construction from preparation to pouring. Complete, what preparations do we need, what conditions should be provided before pouring, what work needs to be done when pouring, what needs to be done after the pouring is completed, please remember one magic weapon, that is, the man-made method of the master key Ring", as long as the factors are sorted out in order from these factors, it will be ok, then take a look at the basic rafting construction process. First of all, let's talk about the concrete project quality control program. The basic main line of each project is to use this control program. You can optimize this program according to your own project, better prepare for the event, process control, and follow-up afterwards. Perfect, better to improve the quality of cast-in-place concrete. Section 2: Construction Deployment The foundation concrete is made of commodity ready-mixed concrete. According to the construction process and construction schedule, the concrete pouring should be arranged as much as possible during the day. If the concrete pouring amount is large, the construction can be divided into two shifts if the construction can not be completed during the day and the construction joint cannot be left. Class 12h, relevant professional leaders and construction personnel follow the class operation, responsible for inspection, and at the same time do a good job in coordination. (There is no extension of the night construction to disturb the people) Whether the foundation concrete is cast by the day pump or the ground pump is used together, and the specific conditions are determined according to the actual conditions of the project and the construction period requirements. The contents of the construction preparation will be shared in the next article.

The laser leveling machine plays a vital role as the main equipment for floor construction. When the summer comes, the floor construction will gradually enter the peak season, and it is very important to ensure the working condition of the equipment. High temperature construction in summer is also a test for concrete and concrete laser levelers. Do a good job in equipment maintenance and work to maximize the efficiency of the equipment. Learning equipment maintenance is not only related to the construction quality of the floor, but also related to the service life of the concrete laser leveling machine and construction safety. Do a good job in machine maintenance and guarantee your investment. This issue brings you the summer maintenance micro-classroom of the YZ28-4S/ YZ28-4. These two equipments are two four-wheel drive YZ28-4S that been developmented by VANSE or many years. YZ28-4S concrete leveling machine. two devices follow the excellent quality of the Hummer model, and the product development habits and requirements of domestic customers are fully considered in the product development process. Therefore, in addition to the performance guarantees of these two new products, the customer operating experience has also been significantly improved. Precautions: * Avoiding the engine too hot. Under normal circumstances, the temperature of the engine should not exceed 95°. If the temperature is too high, you should choose a cooler position to stop the cooling. When the machine is stopped, the hood can be ventilated and cooled. * To detect the amount of cooling water in time. When the water radiator reaches 100°, do not rush to add cooling water. Instead, stop the engine immediately after idling and then add coolant. * Clean the radiator timely. Includes coolant radiator / oil radiator / hydraulic oil radiator to prevent poor heat dissipation. * The construction temperature in summer is very hot, so it's better to check the wheels air pressure and temperature. If the temperature of the wheels too hot, . If the temperature of the tire is too high, stop it in time and place it in a cool place to cool down. Avoiding use the wrong method of deflation or cold water to cool down. * Maintenance-free batteries need to be checked frequently for their working conditions. The observation hole shows that green represents normal. * Prevent engine knocking .Before entering the summer, the carbon deposits in the combustion chamber, valve top and other parts should be completely removed to maintain good heat dissipation and normal compression ratio; it is necessary to check and adjust the fuel supply advance angle to prevent engine deflagration. * Always check the temperature of the hydraulic oil and hydraulic transmission oil . If the temperature is too high, stop it and stop it. Do not operate at high temperatures. * In summer, the concrete solidifies at a faster speed, so it is necessary to clean the equipment in time, otherwise it will cause damage to the machine. If yoour machine happen somethings wrong, do not worry! When choose VANSE, also choose the 100% perfect after-sales system, "zero-distance" of VANSE and our equipment, We offer 24 hours and 365 days safty after-sales, if your machine had something wrong on the working, welcome to contact us at anywhere and anytime! Our after- sales engineer will get in touch with you at first.

This paper introduces in detail what strength levels of concrete, what are the requirements of concrete for water quality, what factors the durability of concrete is related to, and how concrete is maintained. Why should concrete be graded in intensity? To ask why concrete should be graded in strength, you should first know what the strength level of concrete is. The concrete strength level is artificially divided according to the value of the concrete cube's anti-pressure strength, which is the characteristic strength of concrete. According to the current relevant standards and specifications, the concrete cube pressure strength is a standard size of 150mm of the edge of the standard size of the cube test piece sproducing according to the standard method, the temperature consistent with the ISO test method is 20 pc 2 degrees C, humidity is more than 95% of the standard maintenance room, maintenance to 28d age. The pressure strength of the concrete cube measured according to the standard test method. According to the relevant standards, building material strength grade should be expressed by the name of the material plus its strength standard value. Therefore, the concrete strength grade is divided into the standard valueofs of the symbol C (short for the English concrete Concrete) and the pressure strength of the cube behind it: C10, C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75, C80. Because the general engineering of different parts of the concrete load is not the same, some large, some small, can not fully use a strength grade of concrete. For the heavy pressure of the site, it is necessary to use high-strength grade concrete, for the low pressure of the site, the use of low- strength grade of concrete, therefore, the concrete is divided into different strength levels to meet the needs of different projects, through the design and calculation of selection. Why does concrete specify 28d strength as the standard strength? Concrete is based on the cement bonding action, gradually hardening, and improve the strength of pressure. Because the cement stiffness is not done at once, but gradually perfected over time. Under normal maintenance conditions, the first seven days of pressure resistance increased faster, between 7d and 14d growth slightly slower, and after 28d, the intensity growth is relatively slow. In other words, after 28d the pressure strength is the standard strength, as the standard for design and construction inspection quality. Obviously, if the strength of less than 28d as the standard strength, will make the concrete performance can not be fully exploited. If the strength of greater than 28d as the standard strength, although the performance of concrete can be fully developed, but because of the time to reach the standard strength is too long, affecting the construction progress. Concrete level leveling on concrete working Why does concrete had request standard of water? Industrial wastewater containing fat, vegetable oil, sugar, acid and so on can not be used to mix concrete. Because the water containing impurities will reduce the cement bonding force, so that the strength of the concrete decreased, so can not use mineral water contains a large number of salts, so that cement can not be very resistant to water erosion. For the chemical composition of mineral water, must meet the indicators set by the family, or compared with ordinary drinking fresh water test, see the intensity does not decrease before use. As for the general tap water and drinkable water, can be used to mix concrete. Concrete level leveling on concrete working Why are concrete blocks in groups of three? Concrete test block is the standard to measure the strength of concrete components, that is, the strength of the test block is destroyed by pressure, as the strength of the component can have. Therefore, in addition to the test block should be made according to the component, the test block must also have a certain number. Because although we try to make the concrete of the test block and the concrete of the component is the same, but after all, there are some differences, if only a test block to identify the strength of the component, it is difficult to be reliable. So in three groups, the strength of the three test blocks is used as the strength of the three test blocks (in special cases, some values need to be removed), that is, the strength of the component symup. Next artical we will go on share concrete knowledge etc, please follow our Youtube or Facebook to get more~

According to the relevant standards, the strength grade of building materials shall be expressed by the name of the material plus its strength standard value.Therefore, the Concrete strength grade is divided into C10, C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80 by the symbol C(abbreviation of Concrete) and the standard value of cube compressive strength. This "C" grading system is now the most widely recognized internationally. Here is a comprehensive breakdown of what these grades mean and how they are used. Core Definition The letter "C" stands for Concrete. The number (e.g., 30 in C30) represents the characteristic compressive cylinder strength in Megapascals (MPa) after 28 days of standard curing. For European Standards (EN): The number is the cylinder strength (fck,cylfck,cyl​). For Chinese Standards (GB): The number is the cube strength (fcu,kfcu,k​). This is a key difference in definition, despite the same "C" notation. Strength Class Groups & Typical Applications The grades can be grouped by their strength level and primary use-case. Strength Grade Compressive Strength (MPa) Category Typical Applications C10 / C15 10 – 15 Low Strength Blinding concrete (under foundations), mass concrete fills, simple footpaths. Non-structural. C20 / C25 20 – 25 Normal Strength (General Use) Domestic: house slabs, driveways, garden walls. Lightly loaded reinforced elements. C30 / C35 30 – 35 Standard Structural The most common grades for general RC work. Beams, columns, slabs, foundations for multi-story buildings, pavements. C40 / C45 40 – 45 High Strength Heavily loaded columns/long-span beams in high-rises, bridges, industrial floors, water-retaining structures, pre-cast elements. C50 / C55 / C60 50 – 60 High Strength Long-span bridges, high-rise building cores (shear walls), offshore structures, specialized pre-stressed concrete. C65 / C70 / C75 / C80 65 – 80 Very High / Ultra-High Strength Specialized civil engineering: tall buildings (>60 stories), iconic bridges, zones with extreme loads. Requires careful mix design and quality control. Critical Distinction: European (EN) vs. Chinese (GB) "C" Grades This is the most important technical point. The same notation has a different physical meaning. Aspect European Standard (EN 206) Chinese Standard (GB 50010) Test Specimen Cylinder: 150mm diameter, 300mm height Cube: 150mm x 150mm x 150mm Strength Defined Cylinder Strength (fck,cylfck,cyl​) Cube Strength (fcu,kfcu,k​) Meaning of C30 Cylinder strength = 30 MPa Cube strength = 30 MPa Approximate Relation Cube Strength ≈ Cylinder Strength × 1.25 Cylinder Strength ≈ Cube Strength × 0.8 (C30 cylinder ≈ 37.5 MPa cube) (C30 cube ≈ 24 MPa cylinder) Practical Implication: A C30 concrete in China (GB) is structurally weaker than a C30 concrete in Europe (EN). In fact, China's C30 is roughly equivalent to Europe's C24/C25 in terms of cylinder strength. Selection Factors for Choosing a Grade Structural Design Requirements: The primary factor. Calculated loads determine the minimum required strength (fckfck​). Durability & Exposure Conditions: Often governs the choice more than strength. A harsh environment (marine, de-icing salts, freeze-thaw) may require a minimum grade (e.g., C35/XA3 for chemical attack) and a low water-cement ratio. Constructability: Higher grades (C60+) are often stiffer, have shorter setting times, and require precise batching, placing, and curing techniques. Economic Considerations: Higher grades use more cement and admixtures, increasing cost. The goal is to use the lowest grade that satisfies all structural and durability requirements. Example Specification (EN Standard) A full concrete grade specification under EN 206 includes more than just "C": Example: C30/37 XC4 S4 Dmax 20 C30/37: Cylinder strength 30 MPa / Cube strength 37 MPa. XC4: Exposure class for corrosion risk from carbonation (e.g., outdoor structures). S4: Slump class (160-210mm), indicating workability. Dmax 20: Maximum aggregate size 20mm. Summary Table Grade Range Primary Role in Construction Key Consideration C10 – C25 Non-structural & Light Structural Cost-effectiveness for low-load applications. C30 – C35 Workhorse of the Industry Balances strength, durability, workability, and cost for the majority of structures. C40 – C60 High-Performance Structural Used where high load capacity, reduced member size, or enhanced durability is critical. C65 – C80 Specialized & High-Tech Demands expert mix design, stringent QC, and specialized construction practices. 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.

The application of pervious concrete floor in daily life As a new kind of ecological friendly pavement material, the color permeable floor has been paid more and more attention especially in the industry. Permeable floor, also known as ecological permeable floor, permeable concrete floor, sand free concrete floor and so on, is the use of coarse aggregate gravel, cementing material, cement and water and other raw materials, after a certain time of mixing evenly, paved into a new type of environmental protection pavement. In the city, the scope of application of this permeable ground is very common, municipal footpath, garden path, city square, upscale residential community outside the garden, parking lot, outdoor sports venues and other outdoor places can be used.

We often see some old underground parking lot floor has peeling, dust, cracks and other problems, most of which are caused by the back and forth rolling of cars, the ground did not do maintenance treatment. Tips for curing concrete floor of parking lot. If the dirt on the ground is serious, can choose neutral cleaner to clean, can also use general detergent to add a small concentration of water to make cleaning solution, oil pollution is more, can use the solution to clean. After the completion of floor construction in the parking lot, maintenance must be carried out. During the maintenance period, no personnel or vehicles can enter. Generally, maintenance of the floor needs at least 7 days. After being put into use, it is necessary to avoid heavy machines and objects directly hitting the floor, and sharp objects scratching the floor surface .I f the dirt on the ground is serious, can choose neutral cleaner to clean, can also use general detergent to add a small concentration of water to make cleaning solution, oil pollution is more, can use the solution to clean. After the completion of floor construction in the parking lot, maintenance must be carried out. During the maintenance period, no personnel or vehicles can enter. Generally, maintenance of the floor needs at least 7 days. Finally is the parking lot carrying items as far as possible to do light, avoid direct damage to the ground.

*In summer, the construction must first prevent the engine from overheating. Under normal circumstances, the temperature of the engine should not exceed 95°. If the temperature is too high, you should choose a cooler position to stop the cooling. When the machine is stopped, the hood can be ventilated and cooled. *It is necessary to detect the amount of cooling water in time. When the water radiator reaches 100°, do not rush to add cooling water. Instead, stop the engine immediately after idling and then add coolant. *Clean the radiator often. Includes coolant radiator / oil radiator / hydraulic oil radiator to prevent poor heat dissipation. *The construction temperature is high in summer, and the tire pressure and tire temperature should be checked frequently. If the temperature of the tire is too high, stop it in time and place it in a cool place to cool down. Remember to use the wrong method of deflation or cold water to cool down. *Maintenance-free batteries need to be checked frequently for their working conditions. The observation hole shows that green represents normal. *Prevent engine knocking. Before entering the summer, the carbon deposits in the combustion chamber, valve top and other parts should be completely removed to maintain good heat dissipation and normal compression ratio; it is necessary to check and adjust the fuel supply advance angle to prevent engine deflagration. *Always check the temperature of the hydraulic oil and hydraulic transmission oil. If the temperature is too high, stop it and stop it. Do not operate at high temperatures. *After the construction is finished, it is necessary to clean the spreader roller in time, otherwise it will cause damage to the machine and affect the spreading effect.

In summer, the temperature is high and the drying is fast. The newly poured concrete may have an accelerated condensing speed and a decrease in strength. At this time, care should be taken when pouring, trimming and curing the concrete. First, mixing and transportation: When mixing, the measures should be taken to control the temperature rise of the crucible, and the additional water quantity should be controlled at one time to reduce the slump loss and reduce the plastic shrinkage cracking. The following measures can be taken during the mixing and transportation process. 1. Use water reducing agent or replace some cement with fly ash to reduce the amount of cement, and increase the aggregate particle size while the casting conditions allow. 2. If the transportation distance of the bismuth mixture is long, the setting time of the hydrazine can be controlled by a retarder, but it should be noted that the dosage of the retarder should be reasonable, especially for the large-scale slab floor project. 3. If you need a high slump bismuth mixture, use a superplasticizer. Some of the high- efficiency water reducing agent produced a slump of 2 h. The high-efficiency water reducing agent also reduces the friction between the aggregate particles during the mixing process and slows the heat accumulation in the mixing barrel. 4. In case of meeting the requirements of construction specifications, try to use slag Portland cement and fly ash Portland cement. 5. Sprinkle water into the aggregate to reduce the temperature of the aggregate; if it is sprayed with groundwater or well water, the cooling effect is better. 6. In the hot season or large volume concrete construction, cold water or ice cubes can be used instead of some mixing water. 7. For the long-distance transportation of sputum in the hot season, the delayed stirring of the mixer can be considered, so that the raft is still in agitating state when it arrives at the construction site. 8. It is recommended abroad to paint the outside of the drum of the mixer in white in the summer, so that the absorption of solar radiation by the drum is significantly reduced. In the summer, taking the transport distance of 1 h as an example, the temperature in the white mixing drum is at least 1 ° C lower than that in the conventional red mixing drum. 9. Construction organization design should be done to avoid pouring concrete at the highest temperature in the day. During the high temperature drying season, the evening pouring is relatively less affected by wind and temperature, and can be finally condensed near sunrise, while the relative humidity is high, so the possibility of early drying and cracking is minimal.

Recently lying storms throughout our country, the rainy season comes laser screed machine maintenance has become very important, the rainy season concrete ground outside can not be constructed, in the concrete laser flatflating machine idle, should be placed in a dry place, to avoid the air humidity and affect the engine start. In addition, the construction environment of the concrete laser flattening machine is not very good, after the rain will have a lot of potholes and puddles of mud accumulation, the first thing to pay attention to after the rainy season is the cleaning of the laser flatflater, of course, not only the rainy season, usually after the use of laser flatflating machine should also be cleaned in time, Failure to do so can lead to the laser leveling machine walking track under the gap in the accumulation of sludge, is a place where moisture is hidden, but also most likely to cause the track rust. The acidic composition in the rainhast water has a strong corrosive effect on the paint surface of the laser screed machine, and over time it will cause damage to the paint surface of the laser flattener, so in the season with more rain, it is best to give the laser leveling machine a paint finish. The simplest is waxing, the longer and more effective is to seal the glaze. No matter what method, All to the laser leveling machine put on a protective coat, to prevent the paint surface fade aging. The chassis of the laser screed is the closest to the ground, especially affected by road conditions, this part is most prone to rust spots, the wheel shell may even loosen perforation. Therefore, we must pay attention to the laser leveling machine chassis clean rust treatment. Rainy days, such as encountering indoor construction, laser screed machine engine is not easy to start the problem, sometimes even if forced to start up, but also has air power. The most likely is a leakage due to moisture in the ignition system, which loses its normal ignition function. Once found that because of the moisture of the ignition system caused bad ignition, engine performance, it is best to use dry paper towels or dry cloth to the inside and outside of the cable and wire drying, and then use a special desiccant spray can to spray the dryer in the split disk cap, battery connector, line connector, high-voltage line, etc. , and so on after a while can start the engine

Concrete laser screed machine is based on modern industrial plant, large shopping malls, warehouses and other large areas of cement and concrete ground, such as the ground quality such as strength, flatness, level and other higher and higher demand for development, applied to large-area flooring construction, in the reduction of construction seams at the same time, can also effectively solve the ground air drum, shell, cracking, inequality. About the working principle of the laser leveling machine, it is not complicated to understand, simply is a laser emission laser as the reference plane, through the laser leveling machine laser receiver real-time control of the flathead, so as to achieve high-precision concrete, rapid flattening of the equipmen. Advantage 1: Save on human input. People who have done the grade level know that in a large area of flooring construction, the traditional process of manual construction, the number of team members from about 15 people, a single shift to complete the workload within 700㎡. If using concrete laser screed machine, applied to large area floor ingress construction, the operation effect is greatly improved, 6 workers around the formation of the construction team, the average hour can complete 300m2 paving work, the average single shift can complete 2500 to 3500m2, especially suitable for the duration requirements of tight, large paving area, high quality requirements of the project. Advantage 2: Save capital investment and shorten construction cycle Traditional labor needs to advance the template, waste labor, delay the duration, can not effectively return funds. Concrete laser flatflating machine, high degree of automation, large area block one-time paving construction of the realization, so that the middle of the block does not need a module, in the reduction of branch templates, groove steel at the same time, but also further reduce the construction process, speed up the construction progress. Advantage 3: Very small leveling error The process principle of concrete laser flattening machine is to rely on gasoline generator power generation, electric drive laser measurement and control system, computer control system and servo drive system to complete the flat work by using the flathead, laser leveling machine to find flat does not need to pull the control line, also does not need the side template to control the ground elevation, and by the laser measurement and control system on the flat flating machine real-time control As long as the laser transmitter is not disturbed, no matter where the leveling machine moves, it ensures that the elevation of the ground as a whole after the paving is not affected. Advantage 4: Better overallground on the ground Traditional process construction, one day, one day pouring, can only a piece to jump open construction, the limitations are very large, can not be continuous operation, and the overall nature is not good, easy to cause the cumulative error of construction seams. Concrete laser flatflating machine, applied to flooring construction, it is very easy to achieve a large area of flooring one-time overall paving, this paving technology can be based on the need for arbitrary block construction, continuous operation to the completion of the entire floor, so that the overall nature of the ground is better, which is the use of traditional construction technology can not be done. Advantage 5: The ground is more compact and uniform, reducing the cost of post-maintenance Laser flattener is using 4000 times per minute of high-frequency vibrators, the flat head vibrator yat-bar uniform high-frequency vibration, so that the concrete ground is dense and avoidthes the pressure concentration caused by deformation caused by ground cracking. Can reduce cracks, can effectively solve the ground air drum, shell, cracking, inequality, so that the floor of the late maintenance costs greatly reduced.