What is the difference between a concrete laser leveling and a paver?

As we all know, summer is the time of year when the temperature is particularly high. Like winter, laser leveling machines are used in harsh environments. If the maintenance is not in place, coupled with the high temperature, the laser leveling machine is likely to have various problems. Therefore, when using the laser leveling machine in summer, special attention should be paid to the maintenance and maintenance. So how should the laser leveling machine be maintained and maintained in summer? 1. In summer construction, the engine should be prevented from overheating first. Under normal circumstances, the engine temperature should not exceed 95°. If the temperature is too high, a relatively cool area should be selected for shutdown and cooling. At the same time, the engine hood can be lifted for ventilation and heat dissipation. 2. The cooling water volume should be checked in time. When the water radiator reaches 100°, do not rush to add cooling water. Instead, the engine should be shut down immediately to cool down the engine at idle speed, and then add coolant. 3. The construction temperature is high in summer. Check the tire pressure and tire temperature of the laser leveler frequently. If the tire temperature is too high, stop the machine in time and place it in a cool place to cool down. Remember to use the wrong method of deflation or pouring cold water to cool down. 4. Check the liquid level of the laser leveler battery frequently, add distilled water in time, dredge the vents, pay attention to the density of the electrolyte, and maintain a good charging state. 5. Prevent the laser leveler engine from deflagration. Before entering the summer, the carbon deposits in the combustion chamber, valve top and other parts should be thoroughly removed to maintain good heat dissipation and normal compression ratio; and check and adjust the fuel supply advance angle to prevent engine deflagration. 6. Check the temperature of the hydraulic oil and hydraulic transmission oil frequently. If the temperature is too high, stop the machine for rest. Do not exceed high temperature operation. 1. Quality. When choosing a laser leveler, you should pay attention to the quality. If the quality of the laser leveler is not good, problems may occur during work, which may delay the construction period and the loss is immeasurable. 2. Operation effect. When purchasing a laser leveler, you should conduct an on-site inspection. If it is inconvenient, you can ask the manufacturer to provide some photos for reference. 3. After-sales service. When purchasing a laser leveler, you should also pay attention to the after-sales service. When purchasing a laser leveler, you should identify regular and professional manufacturers, and verify the manufacturer's technical capabilities and after-sales service. Only regular manufacturers can guarantee the performance of the machine, solve problems in time when the machine has problems, and extend its service life. It can be seen that when using equipment in extreme weather, you must pay special attention to its maintenance content, so as to ensure the smooth operation of the equipment. After reading the above article, I hope that everyone will pay attention to the above points when maintaining the laser leveler in the future. Thank you for your reading and support.

  When the concrete laser leveler is working on the road surface, the temperature increase may cause some parts of the equipment to overheat, thus affecting the correct leveling effect of the equipment. So, how should the temperature of the leveler be controlled during operation? Next, let's take a look at how our company's technicians teach you how to control the temperature of the leveler during operation! First of all, controlling the temperature of the leveler is one of the keys to ensuring the quality of leveling. When the equipment is leveling, it should meet the requirements of relevant standards according to the asphalt type, grade, consistency, ambient temperature, leveling thickness, etc. . Secondly, when the construction temperature of expressways and first-class highways is lower than 10℃, and the construction temperature of other grades of highways is lower than 5℃, it is not suitable for leveling. If leveling work must be carried out, the temperature of the road leveler should be increased, and there are also low-temperature leveling requirements that meet the regulations. The material transporter must have insulation measures, and high-precision levelers should be used as much as possible to start paving, and the trade plate should be heated and leveled immediately after the pressure is applied to shorten the length of the pressure. Finally, remember that leveling should meet the requirements of relevant standards according to asphalt type, grade, consistency, ambient temperature, leveling thickness, etc., so that it is relatively simple and easy to control the temperature. 1. After completing the leveling operation, perform routine maintenance operations in accordance with the contents of the routine maintenance procedures. 2. The working devices and motion mechanisms of the leveling machine that are in direct contact with the asphalt mixture during the operation should be sprayed with diesel after the operation and then run for a period of time to remove the residual asphalt on them, so that they can operate freely and rotate flexibly. It is forbidden to spray diesel on the electronic control system and spiral wire to prevent fire when the power is turned on. 3. After leveling the fly ash soil, flush with water to flush away the white material. After flushing, use waste hydraulic oil to lubricate the active parts of the scraper conveyor chain and apply anti-rust oil to the piston rod. Be careful not to flush water to the electrical appliances and bearings to prevent short circuits and foreign objects from entering the bearings. 4. Clean and check the lifting and adjusting device of the longitudinal slope meter, and lubricate the screw with grease. Apply grease to the floating arm slide rail. Fill each oil filling point with grease until the joints overflow. For levelers with oil filling cups, observe the consumption and fill them up at any time. Have you learned all the above? If you want to know more about concrete laser levelers, please continue to pay attention to this website

    ◑◐Construction method: Use a 3-4m light ruler to scrape the concrete surface, remove excess water and slurry, fill the low-lying areas with concrete, vibrate and re-trim, remove and trim the high parts, and then smooth them appropriately. The vibrator rod will also be used to "quickly insert and slowly pull out" to fully vibrate the concrete. The moving distance of each rod is generally not more than 1.5 times its effective radius (can be controlled as 30cm), and the distance from the template is less than 0.5 times the effective radius of the vibration. Vibrate until the slurry overflows on the surface of the concrete mixture, no longer sinks significantly, and no obvious bubbles overflow; then use the vibration beam to walk back and forth 2-3 times to level and raise the slurry to make the surface flat and uniform. ◑◐Applicable scenarios: Applicable to small projects, rural roads with narrow construction sites or relatively low requirements for flatness. For example, some self-built roads in rural areas, internal roads in small factory areas, etc. ◑◐Advantages: The equipment is simple and easy to obtain, the cost is low, the operation is relatively easy, and the technical requirements for operators are relatively low. ◑◐Disadvantages: The construction efficiency is low, the labor intensity of manual operation is high, the flatness control accuracy is limited, and it is difficult to meet the requirements of large-area, high-precision road projects. ◑◐Construction method: The laser emitted by the transmitter is used as the reference plane, and the leveling head is controlled in real time through the laser receiver on the laser leveling machine. Just like the laser leveling machine equipped with a HONDA GX690 engine (power 18.4kW/25HP, fuel tank capacity 19L), the steel bar is tied after the formwork of the civil engineering project. Before pouring concrete, the elevation is set on the column reinforcement and led to the laser leveling control system. When the pouring personnel scrape the elevation, the elevation is controlled to be 5-10mm higher than the design elevation, and then the machine operator uses the equipment to accurately level the concrete surface. The leveling width is 3m (9.84ft), and it adopts hydraulic screw conveying paving mode. The vibration system is hydraulic vibration, with a maximum excitation force of 2000N, which can be automatically calibrated and controlled at a certain frequency. After the water seepage of the concrete pouring surface is completed, the laser leveling instrument is used for re-measurement, the water accumulation is filled, and the 3-meter scraper is used to rotate and level it, and then the single-disc trowel is used to level the slurry. ◑◐Applicable scenarios: It is widely used in large-scale industrial plants, large shopping malls, warehouses, underground garages, airport runways, docks and other large-scale concrete floor projects with high requirements for ground flatness, horizontality and strength. For example, the workshop floor of a large automobile manufacturing plant, the floor of a large logistics storage center, etc. ◑◐Advantages: It can achieve high-precision and fast leveling of concrete, and the flatness and levelness of the ground are more than 3 times higher than conventional methods, and the density and strength are increased by more than 20%; it can improve work efficiency by more than 50% and save about 35% of labor; it can lay high-strength concrete, low-slump concrete and fiber concrete; and it can also automatically control the longitudinal and transverse slopes. The equipment has an all-aluminum body and is light in weight (net weight 835kgs / 1841lbs), which is convenient for operation under various working conditions. It is also equipped with an anti-skid system, a hydraulic brake system and a trailer system, a more precise height adjustment rod, a standard soft landing system for the working head, and switch detection and valve port calibration functions to ensure stable machine performance after long-term use. It is also equipped with two types of tires (inflated narrow tires and inflated wide tires) to adapt to different working conditions. ◑◐Disadvantages: The equipment has high purchase costs, high professional and technical requirements for operators, and requires professional training; the site requirements are relatively high, and it is inconvenient to operate in narrow and complex terrain sites. ◑◐Pre-construction preparation skills: Before construction, ensure that the roadbed is stable, the formwork is strong and installed straight and flat, and set up a support device every 1m. Accurately measure and lay out the construction site to determine the road elevation and slope. At the same time, clean the construction site to ensure that the ground is clean, dust-free, and oil-free. If there are cracks or unevenness on the ground, it needs to be repaired first. In addition, the quality control of raw materials and mechanical debugging must be done well to ensure the quality of concrete and the normal operation of equipment (such as the laser leveling machine equipped with the HONDA engine mentioned above). ◑◐Concrete spreading skills: Spread the material during pouring. When unloading with a dump truck or a mixer truck, it is strictly forbidden to concentrate the material on a few points to prevent concrete accumulation and ensure that the concrete mixture is evenly distributed. ◑◐Vibration operation skills: Use the vibrator to "insert quickly and pull out slowly" to avoid missing vibration and over-vibration. Control the moving distance of the vibrator and the distance from the formwork. For equipment using a hydraulic vibration system (such as the relevant laser leveling machine), the exciting force should be reasonably adjusted according to the characteristics of the concrete and construction requirements. ◑◐Surface treatment skills: Correct minor defects in the leveling process in time; rub the surface with a grinding disc to compact the slurry before the initial setting to eliminate water seepage channels and tiny cracks; complete the finishing and embossing processes before the final setting, and finish 3-4 times. Moisturize in time during hot and windy weather in summer to prevent the surface from evaporating too quickly and forming a hard shell. ◑◐Equipment upgrade and reasonable configuration: When conditions permit, give priority to equipment such as advanced laser leveling machines with the above parameters. Its hydraulic screw conveying paving mode and larger leveling width can improve construction efficiency. At the same time, according to the scale of the project and the conditions of the construction site, reasonably match other auxiliary equipment, such as concrete mixers, pump trucks, etc., to ensure smooth connection between concrete supply and construction. ◑◐Construction process optimization: Scientifically plan the construction sequence and operation area, adopt a segmented flow operation method, and reduce the waiting time between each process. For example, reasonably arrange the connection between concrete pouring, vibration, and leveling with a laser leveler (operated according to its performance parameters) to avoid idle work. ◑◐Personnel training and management: Strengthen the skills training of operators to enable them to master the operation of construction equipment (especially laser levelers) and construction processes, and improve their operating proficiency and accuracy. At the same time, optimize the division of labor, clarify the responsibilities of each position, and improve the efficiency of teamwork. ◑◐Strictly control the quality of raw materials: Select raw materials such as cement, aggregates, and admixtures of qualified quality, control the mix ratio, and ensure that the strength and workability of concrete meet the design requirements. For example, cement should be selected from brands with stable strength and reliable quality, and the particle size and mud content of aggregates should meet the standards. ◑◐Strengthen process quality inspection: During the construction process, use measuring instruments such as levels and theodolites to monitor road elevation, flatness, slope and other indicators in real time, and make timely adjustments when deviations are found. At the same time, do a good job in testing the slump of concrete and the compaction density. For laser leveling machine construction, it is necessary to regularly check whether the laser system and hydraulic system of the equipment (such as checking the accuracy of its height adjustment rod, the performance of the hydraulic brake system, etc.) are normal. ◑◐Protect the finished product: After the concrete pavement construction is completed, timely take maintenance measures such as covering and sprinkling water, and the maintenance time is not less than 14 days. Set up warning signs to restrict the passage of vehicles and pedestrians before the concrete strength reaches the design requirements to prevent damage to the road surface.