Maintenance of underground parking lot floor

Concrete can be said to be one of the most commonly used materials in construction. In order to make the ground smoother and more beautiful, many people also use a trowel, so you must understand some skills and matters before using it. The editor below will introduce to you the tips for using a concrete trowel. What are the tips for using concrete trowel The troweling machine can only be started by holding it steady by hand. In order to balance the machine body, adjust the screw. When starting work, be sure to hold it steady. If you are operating on the floor, adjust the direction to prevent the machine from losing control. Remember to first Grind coarsely, then finely grind later. When selecting, you must choose a suitable blade material based on the construction conditions. If it is too soft, it will deform during use, which may cause unevenness. You must choose a blade with high rigidity and strength. What are the precautions for operating the trowel machine? 1. Before use, you need to check the switch of the motor, check whether the cables and wiring are normal and comply with regulations, and check whether a leakage protector is installed. 2. Before use, you need to check whether there are any debris on the wiper plate to prevent the whole machine from jumping during use. 3. Start the trial operation after the power is turned on. The blades are generally in a clockwise direction and must not be reversed. 4. Operators must remember to wear insulating shoes and gloves. Assistant personnel must also wear these things to avoid damage to the insulation layer and electric shock accidents. 5. When a fault occurs, the power must be cut off before maintenance can be carried out. 6. The trowel should be placed in a dry place, free of corrosive gases and dirt, and its handle should also be placed in the specified position. When moving it, no rough handling can be carried out. Summary: This is the introduction to the tips for using concrete trowels. When choosing, you must first look at the material of the blade. If it is too soft, it will deform during use, which may cause unevenness. phenomenon, it is appropriate to choose a material with high rigidity and strength. If you want to know more related knowledge, you can follow us for consultation.

    To prevent the problem of flatness of concrete pavement, it is necessary to strictly control the quality in various links such as construction preparation, concrete pouring, pavement paving and subsequent maintenance. The specific measures are as follows:   – Do a good job of roadbed treatment: The roadbed is the foundation of the road surface and must be guaranteed to be solid, stable and uniform. Before construction, the original ground should be carefully cleaned, weeds, tree roots, garbage and other debris should be removed, and the soft soil, silt and other unfavorable geological areas should be replaced and reinforced. Fill and compact the roadbed according to the design requirements, control the moisture content of the fill, fill and compact in layers, ensure that the compaction meets the standard, and avoid uneven settlement of the roadbed in the later stage and affect the flatness of the road surface. – Precise measurement and layout: Use high-precision measuring instruments, such as total stations, levels, etc., to accurately measure and lay out the center line, side line, elevation, etc. of the road surface. During the construction process, the measurement control points should be reviewed regularly to ensure the accuracy of the measurement data. At the same time, according to the measurement results, set the road template or the guide line of the paver to provide an accurate benchmark for road construction. – Check construction equipment: Ensure that the performance of construction equipment such as concrete mixing equipment, transport vehicles, pavers, and rollers is good and can operate normally. Carry out regular maintenance and maintenance of the equipment, and conduct a comprehensive inspection and commissioning of the equipment before construction. For example, check whether the screed of the paver is flat, whether the vibrating device is working properly, whether the roller wheel of the roller is evenly worn, etc., to ensure that the equipment operates stably during the construction process and avoid problems with the flatness of the road surface due to equipment failure.   – Control concrete mix ratio: According to the road design requirements and construction conditions, determine the reasonable concrete mix ratio through experiments. Strictly control the quality and amount of raw materials such as cement, sand and gravel, water, and admixtures to ensure that the workability, strength, and durability of the concrete meet the requirements. In particular, attention should be paid to controlling the slump of concrete. The slump should not be too large or too small. If it is too large, it will easily cause concrete segregation and surface water seepage, affecting the smoothness of the road surface; if it is too small, it will make it difficult to spread and vibrate the concrete. – Ensure the quality of concrete mixing: Use a forced mixer to mix to ensure that the concrete is mixed evenly. Strictly control the mixing time. Determine the appropriate mixing time according to the mix ratio of concrete and the performance of the mixer. Generally, it should not be less than 90 seconds to ensure that the various components of the concrete are fully mixed to avoid uneven distribution of cement slurry and stone clumping, which will affect the working performance of the concrete and the smoothness of the road surface. – Reasonably arrange concrete transportation: Choose appropriate transportation vehicles to ensure that concrete does not segregate or leak during transportation. According to the distance and traffic conditions of the construction site, reasonably arrange the number of transportation vehicles and transportation routes to ensure that concrete can be supplied to the construction site in time, avoid waiting for too long during transportation, resulting in excessive slump loss, and affecting the quality of concrete spreading and vibration.   – Standardize paving operation: When using a paver for concrete paving, adjust the working parameters of the paver, such as the elevation angle of the screed, vibration frequency, paving speed, etc. The paver should move forward at a uniform speed, and the speed is generally controlled at 2-3m/min to avoid too fast or too slow speed. During the paving process, a special person should be arranged to follow the machine and deal with the leakage and uneven parts on both sides of the paver in time. If manual paving is used, the paving thickness and surface flatness must be strictly controlled. Use tools such as scrapers and shovels to roughly flatten the concrete, and then vibrate it with a vibrating beam or a flat vibrator. – Strengthen vibration control: Vibration is a key link to ensure the density and flatness of concrete. According to the slump and paving thickness of the concrete, choose the appropriate vibration equipment and vibration method. Generally, a combination of an inserted vibrator and an attached vibrator is used for vibration. The inserted vibrator should be inserted vertically into the concrete, and the vibration points should be evenly distributed. The spacing should not be too large, generally about 1.5 times the radius of the vibrator. The vibration time is based on the concrete surface no longer having bubbles, slurry and sinking, generally 20-30 seconds. The attached vibrator should be installed on the formwork to make the concrete dense by vibrating the formwork. During the vibration process, the vibrator should be prevented from colliding with the formwork, steel bars and force transmission rods, so as not to affect the flatness and structural dimensions of the road surface.   – Do a good job of finishing: After the concrete is vibrated, the finishing operation should be carried out in time. The finishing is generally done in two times. The first finishing is done after the concrete surface absorbs water. A wooden trowel is used to scrape the surface slurry, gravel, etc. to make the road surface flat. The second finishing is done before the concrete is initially set. An iron trowel is used for fine finishing to make the road surface flatter and smoother. At the same time, attention should be paid to controlling the strength and number of finishing to avoid excessive finishing, which may lead to excessive thickness of cement slurry on the surface, cracks, peeling, etc. – Standard roughening treatment: After finishing, roughening should be done in time to increase the roughness of the road surface and improve driving safety. The depth and spacing of roughening should be uniform. Generally, the depth of roughening is 2-3mm and the spacing is 2-4cm. Roughening can be done with tools such as a roughening machine or a broom. The roughening direction should be consistent with the driving direction of the road surface to ensure uniform and beautiful roughening quality.   – Timely maintenance of the road surface: After the concrete road surface is poured, it should be maintained within 12 hours. The maintenance method can be to cover with moisturizing materials such as geotextiles and straw mats, and regularly sprinkle water to keep it moist, or spray curing agents for maintenance. The maintenance time is generally not less than 7 days. For high-strength concrete or concrete constructed in high temperature and dry environments, the maintenance time should be appropriately extended. During the maintenance period, it is necessary to ensure that the concrete surface is always moist to avoid shrinkage cracks caused by water loss in the concrete, which will affect the flatness of the road surface. – Strict traffic control: During the maintenance of the concrete pavement, strict traffic control must be carried out, and all vehicles and pedestrians are prohibited from passing on the road surface until the concrete reaches the design strength. Before the road surface is opened to traffic, the road surface must be inspected and accepted to ensure that the various indicators such as the flatness and strength of the road surface meet the design requirements. At the same time, obvious warning signs should be set up on the road surface to guide vehicles and pedestrians to bypass the construction area to avoid damage to the road surface that has not been fully formed.       ARMOUR JOINT CONCRETE LASER LEVELING MACHINE LIGHT TOWER POWER TROWEL STEEL FIBER TRACKED MINI DUMPER  

▪▪▪▷▷▷ Introduction With the continuous development of the modern construction industry, the requirements for ground construction accuracy are becoming higher and higher. As an advanced ground construction equipment, the concrete laser leveling plays an important role in improving construction accuracy. However, during the actual construction process, the construction accuracy of the concrete laser leveling may be affected by various factors. Therefore, how to improve the construction accuracy of concrete laser leveling machines has become the focus of current research. ▪▪▪▷▷▷ Factors affecting the construction accuracy of concrete laser leveling machine 1. Equipment factors: Factors such as the manufacturing accuracy, installation accuracy of the equipment itself, and wear and tear during use will all affect the construction accuracy of the leveler. 2. Environmental factors: Environmental factors such as temperature, humidity, and wind speed at the construction site will affect the working results of the leveler. 3. Operational factors: Factors such as the operator's skill level and operating habits will also affect the construction accuracy of the leveler. ▪▪▪▷▷▷ Specific measures to improve the construction accuracy of concrete laser leveling machines 1. Equipment selection and configuration Choosing high-precision, high-quality concrete laser leveling equipment is the key to improving construction accuracy. When purchasing equipment, you should fully consider the manufacturing accuracy, stability, durability and other factors of the equipment, and choose brands and models with good after-sales service and technical support. In addition, the accessories and tools of the snow leveling machine should be properly matched according to the specific construction needs and site conditions to ensure that the equipment can perform optimally during the construction process. 2. Equipment installation and debugging Correct equipment installation and debugging are crucial to improving the construction accuracy of the leveling. During the installation process, you should carefully follow the installation guidelines and specifications provided by the equipment manufacturer to ensure that the installation position and accuracy of each component of the equipment meet the requirements. During the debugging process, all functions of the leveling machine should be comprehensively inspected and tested to ensure that the equipment can operate stably and accurately during the operation. 3. Environmental factor control Corresponding measures should be taken to control environmental factors at the construction site. For example, when operating in high or low temperature environments, the operating time should be adjusted according to the requirements of the equipment or insulation measures should be taken to prevent the equipment from affecting the construction accuracy due to changes in ambient temperature. When operating under conditions of high wind speed, wind blocking facilities should be installed or the operation strategy should be adjusted to reduce the impact of wind speed on the operation effect of the leveler. 4. Improve operational skills Improving the skill level of operators is an effective way to improve the construction accuracy of concrete laser leveling machines. Regular training and assessment should be carried out to make operators familiar with the performance characteristics, operation essentials and maintenance knowledge of the equipment. At the same time, the safety awareness and responsibility awareness of operators should also be cultivated to ensure that they can operate in strict accordance with specifications and requirements during the construction process. 5.Construction process monitoring and adjustment During the construction process, the operating status of the leveling machine should be monitored and adjusted in real time. By using advanced monitoring equipment and technical means, the operating data and quality information of the leveling machine should be obtained in real time, so that problems can be discovered and solved in a timely manner. In the case of deviations or non-compliance with requirements, the parameters and operation strategies of the leveling machine should be adjusted in a timely manner to ensure that the construction accuracy meets the requirements. 6. Maintenance and troubleshooting Regular maintenance and troubleshooting of the concrete laser leveling is an important guarantee for improving construction accuracy. The equipment should be cleaned, lubricated, tightened and other maintenance work should be carried out regularly in accordance with the equipment manufacturer's requirements and maintenance plans to ensure that the equipment In good working order. At the same time, a complete troubleshooting mechanism should be established to analyze and deal with faults and problems in a timely manner to avoid equipment failure that affects construction accuracy. ▪▪▪▷▷▷ Case analysis Taking a large commercial complex as an example, this project requires high ground construction accuracy during the construction process. To ensure construction accuracy and quality, the project team took the following measures: 1. Select high-precision, high-quality concrete laser leveling equipment and carry out strict installation and debugging work. 2. Take corresponding control measures for environmental factors at the construction site, such as high temperature, wind speed, etc., to ensure that the equipment operates in a suitable environment. 3. Conduct systematic training and assessment of operators to improve their skill level and safety awareness. 4. Implement real-time monitoring and adjustment strategies during the construction process to ensure that the working status of the leveling is always at its best. Through the application of the above measures, the project successfully improved the construction accuracy of the concrete laser leveling and ensured the safety of ground construction. quality and efficiency ▪▪▪▷▷▷ Conclusion and outlook Improving the construction accuracy of warm concrete laser levelings requires starting from many aspects, including equipment selection and configuration, equipment installation and debugging, environmental factor control, operating skill improvement, construction process monitoring and adjustment, and maintenance and troubleshooting. wait. By taking comprehensive measures, the construction accuracy and operating performance of the leveling can be effectively improved to meet the modern construction industry's requirements for ground construction accuracy. Looking to the future, with the continuous advancement and innovation of science and technology, the construction accuracy of concrete laser leveling machines will be further improved. For example, by introducing more advanced control systems and sensor technologies, more precise control of the leveling machine's operating process can be achieved; by developing new materials and technical means, the wear resistance, stability and service life of the leveling machine can be further improved. wait. At the same time, it is also necessary to strengthen the training and education of operators to improve their skill level and safety awareness to adapt to the higher requirements for ground construction accuracy in the future construction industry.