What are the specific advantage of concrete laser leveling machine in improving the quality of floor construction?

    ◑◐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.  

Compared with manual work, laser leveling machines are more efficient and effective, so more and more people are choosing laser leveling machines. So do you know why the price difference between laser leveling machines is so big? The editor will give you a brief introduction, let's take a look. The main reason why the prices of laser leveling machines vary in the market is the difference in quality and brand. Many products look very similar, but when you actually use them, you will find that these products actually seem to be somewhat different. Learn to conduct a comprehensive analysis of the quality of the products, so that you can better Make sure you end up buying a good product. Of course, you still have to make comparisons when faced with different prices. Features of an excellent laser leveler: 1. The leveling principle of the laser leveling machine is achieved by using precision laser technology, closed-loop control technology and a highly precise hydraulic system, under the automatic control of a computer. This is its most prominent feature that distinguishes it from other floor construction processes. . 2. The leveling principle of the laser leveling machine is to rely on the hydraulically driven leveling head to cooperate with the laser system and computer control system to complete the leveling work while automatically leveling. The leveling head is equipped with an integrated scraper, vibrator and leveling plate, which integrates all leveling, leveling, vibration and compaction work into one and completes it at one time. The computer control system automatically adjusts the height 10 times per second in real time, and the balanced designed vibrator has a vibration frequency of 3,000 times per minute. 3. The laser transmitter used to control the ground elevation is arranged independently. In this way, the floor elevation is not controlled by the template and does not produce cumulative errors. 4. The laser leveling machine can also automatically control the longitudinal and transverse slopes, which is also completed by the laser system, computer system, hydraulic system and mechanical system. For complex-shaped floors with high requirements such as drainage, a three-dimensional special-shaped ground treatment system can also be selected.

The selection and use of concrete trowel is an important link in concrete construction. Correct selection and use can improve construction efficiency and quality. Here's how to properly select and use a concrete trowel. ◆1◆  Choose the right model When choosing a concrete trowel, you need to choose the appropriate model based on construction needs and site conditions. Different models of trowel machines have different parameters such as power, speed, size, etc., and are suitable for different construction occasions and needs. Therefore, when choosing, you need to understand the characteristics and application range of various models in order to choose the trowel that best suits you. ◆2◆ Check equipment quality When purchasing a concrete trowel, you need to check the quality of the equipment. It can be checked from the following aspects: 1. Appearance quality: Observe whether the appearance of the trowel is smooth and smooth, and whether there are obvious defects and damage. 2. Manufacturing quality: Check whether the manufacturing process of the equipment is fine, whether the parts are precise, and whether the installation is firm. 3. Electrical performance: Check whether the electrical performance of the equipment is stable, such as whether the power cord is aged, whether the leakage protector is sensitive, etc. 4. Safety performance: Check whether the safety performance of the equipment is reliable, such as whether the operating handle is firm and whether the braking system is effective, etc. ◆3◆ Understand the operating requirements Before using a concrete trowel, you need to understand the operating requirements. Specifically including the following aspects 1. Pre-operation inspection: Before use, you need to check whether the various functions of the equipment are normal, such as whether the power cord is firmly connected and whether the bearings are lubricated. 2. Operating posture: Correct operating posture can ensure the efficiency and safety of stinging. You need to maintain your balance and avoid excessive bending or overstretching. 3. Operation sequence: Carry out construction according to the correct operation sequence, such as adjusting the angle and depth of the trowel first, and then starting the equipment for construction. 4. Precautions: Safety precautions need to be paid attention to during the construction process, such as avoiding excessive force and use in humid environments. ◆4◆ Care and maintenance The care and maintenance of concrete trowels is of great significance to extending the service life of the equipment and improving construction efficiency. Here are some care and maintenance suggestions: 1. Regular cleaning: Clean the spatula and body regularly to keep the equipment clean and tidy. This helps extend equipment life and improve construction efficiency. 2. Check the bearings: Check the lubrication of the bearings regularly, add lubricating oil or replace the bearings in time. This helps ensure device stability and reliability. 3. Replace wearing parts: Check and replace wearing parts regularly, such as spatulas and belts. This helps ensure proper operation and longevity of the equipment. 4. Maintain the electrical system: Regularly check the circuits and components of the electrical system to ensure they are working properly. If there is damage or aging, it should be replaced or repaired in time. ◆5◆ Precautions for safe use When using a concrete trowel, you need to pay attention to safety matters. Here are some suggestions: 1. Inspection before use: Before use, check whether the equipment is intact, such as whether the spatula is sharp and whether the braking system is normal, etc. If there is any damage or problem, it should be repaired or replaced in time. 2. Wear protective equipment: Appropriate protective equipment should be worn during the construction process, such as gloves, goggles, etc. This helps protect the body from injury. 3. Avoid excessive force: Avoid excessive force during use to avoid equipment damage or personal injury. Force should be used rationally based on equipment performance and construction requirements. 4. Pay attention to environmental safety: During use, you should pay attention to the safety of the surrounding environment and avoid using the equipment in unstable or dangerous environments. At the same time, you should pay attention to weather conditions and avoid using equipment in bad weather. 5. Regular maintenance: Regular maintenance of equipment is an important measure to ensure the normal operation and service life of the equipment. During use, you should regularly check whether all functions of the equipment are normal, and repair or replace damaged parts in a timely manner.