Economic Value Analysis of Superflat Floors in VNA (Very Narrow Aisle) Warehouses

When leveling the road surface, the requirements for smoothness are still relatively high. This is also because the smoothness of the road surface also plays a big role in whether the environment is beautiful or not. Generally speaking, if it is artificially leveled, the effect is not good. Very good, fortunately, with the laser leveling machine now, many construction units have also chosen the laser leveling machine for the leveling operation of the road surface, so how does the laser leveling machine have such an excellent leveling effect? 1. Control of the baseline of the laser leveling machine: When the leveling machine is performing automatic leveling, it needs to have an accurate reference plane. Generally, when controlling the height, it is better to use the steel wire; when controlling the thickness, the floating datum beam method is adopted. Generally, the steel wire is used for the bottom layer, and the floating datum beam method is used for the middle layer and the surface layer. The reference wire rope method is to install reference wire ropes on both sides of the road, but note: the distance between the supporting steel bars of the steel wire ropes should not be too large, generally 5-10m; Accurate throughout the construction process. 2. The paving speed control of the laser leveling machine: The leveling machine should work at a constant speed without stopping, and it is strictly forbidden to go fast or slow. During the leveling process, the downtime should be avoided as much as possible, and the daily shutdown interruption should be placed at the position where the contraction joint is scheduled to be made at one end of the structure. In case of shutdown in the middle, the leveling of the leveling machine should be locked to prevent sinking; when the temperature of the mixture is above 100°C, the pause time should not exceed 10 minutes. When the pause time exceeds 30 minutes or the temperature of the mixture is lower than 100°C, To re-seam as for cold seams 3.Laser leveling machine operation control measures: Skilled laser leveling machine operators should be selected and pre-job training should be carried out; during the paving process, the transport truck should stop at 10-30m from the laser leveling machine, put it in neutral, and rely on the laser leveling machine to drive Advance slowly, and there should be a special person to direct the unloading truck to unload; ensure that the feeding system of the leveler has continuity, that is, ensure that the material level in the casters (conveyor wheels) is stable, uniform, and continuous, and the material level is kept high. 2/3 of the blade above the central axis is advisable. Before construction, the leveling must be cleaned. After adjusting the height and slope of the leveling, preheat the leveling. The preheating temperature of the leveling should be close to the temperature of the asphalt mixture, generally it can be heated to 85°C-90°C. Through some understanding of the above content, you now have a clearer understanding of whether the laser leveling machine has a clearer understanding of the smoothness of the road surface. If this article has not completely solved your doubts, or if you want to know more relevant information, you can call us at any time, we will be very happy to answer any questions for you.

• • • ★ • • •Pre-construction preparation • • • ★ • • • Before carrying out laser leveling construction of floor projects, adequate preparation is the key to ensuring construction quality and progress. The following are the main contents of preparation before construction: 1. On-site investigation and evaluation: Conduct a detailed investigation of the construction site to understand basic conditions such as terrain, landforms, and soil conditions, evaluate the difficulty of construction and possible problems, and provide a basis for the formulation of subsequent construction plans. 2. Construction plan formulation: Based on the on-site survey results and engineering requirements, formulate a detailed construction plan, including construction process, personnel organization, equipment configuration, construction schedule, etc. 3. Personnel training and preparation: Provide operating training for laser leveling equipment to personnel involved in construction to ensure that they are familiar with equipment performance, operating essentials and safety precautions. At the same time, construction personnel should be equipped with necessary labor protection supplies. 4. Equipment inspection and debugging: Conduct a comprehensive inspection of construction equipment such as laser levelers and mixed soil pumps to ensure their good performance, safety and reliability. Carry out necessary debugging and calibration of equipment to ensure that it can work accurately and efficiently during the construction process. 5. Site layout and preparation: Clean the construction site to ensure there is no debris or water accumulation, and provide sufficient working space for construction equipment. Set up construction signs, warning signs and other safety facilities to ensure safety during construction. • • • ★ • • •Material selection and blending • • • ★ • • • The materials required for laser leveling construction of floor projects mainly include cement, aggregates, additives, etc. Choosing appropriate materials and reasonable mixing ratios are crucial to ensuring construction quality. 1. Cement selection: Choose cement with stable quality and meeting the requirements to ensure the strength and durability of the concrete. 2. Aggregate selection: Select appropriate aggregates, such as sand, stone, etc., according to project requirements. Aggregates should have good gradation and particle shape to improve the compactness and workability of the concrete. 3. Use of additives: According to the needs of the project, an appropriate amount of water reducing agent, slow agent and other additives can be added to improve the working performance and hardening performance of the concrete. 4. Material preparation: Material preparation is carried out according to the design requirements, and key parameters such as water-cement ratio and aggregate content are strictly controlled to ensure that the quality of the concrete meets the standard requirements. • • • ★ • • •Basic Processing • • • ★ • • • Before laser leveling construction, the foundation needs to be treated to ensure the flatness and solidity of the floor. 1. Foundation cleaning: Remove oil, debris, etc. from the foundation surface to ensure that the foundation surface is clean and dry. 2. Foundation leveling: If the surface of the foundation is uneven, mortar and other materials must be used for leveling to ensure the quality of subsequent construction. 3. Foundation solidification: The newly poured foundation needs to be cured and cured for a certain period of time to ensure that the foundation strength reaches the required level before laser leveling construction is carried out. • • • ★ • • •Laser Equipment Calibration • • • ★ • • • Laser leveling machine is the core equipment for laser leveling construction of floor projects, and its calibration accuracy is directly related to the quality of construction. 1. Laser transmitter installation and calibration: Install the laser transmitter in a fixed position and ensure that its height and angle meet the requirements. Calibration using a laser receiver ensures that the laser beam is accurately projected onto the ground to be leveled. 2. Laser receiver installation and debugging: Install the laser receiver on the concrete laser leveler to ensure that it can accurately receive the laser signal from the laser transmitter. Make adjustments to the laser receiver as needed to ensure it is working properly. • • • ★ • • • Concrete Pouring • • • ★ • • • Concrete pouring is a key link in laser leveling construction of floor projects, and the quality and speed of concrete pouring need to be strictly controlled. 1. Concrete mixing and transportation: Mix concrete according to the material mixing ratio to ensure that the concrete is evenly mixed and free of impurities. Use equipment such as concrete pumps to transport concrete to the construction site to ensure that the concrete maintains good working performance during the construction process. 2. Concrete pouring speed: According to the construction plan and actual site conditions, the concrete pouring speed should be reasonably controlled to ensure that the concrete can cover the entire construction area in a timely and even manner. 3. Concrete pouring quality: During the pouring process, the uniformity and compactness of the concrete should be checked to ensure that the concrete pouring quality meets the design requirements. • • • ★ • • •Laser Leveling Operations • • • ★ • • • Laser leveling operation is the core step of laser leveling construction in floor engineering, which requires operators to master equipment operation skills. 1. Operator requirements: Operators should receive professional training and be familiar with the performance characteristics, operating essentials and safety precautions of the laser leveler. During the construction process, stay focused and strictly follow the operating procedures. 2. Leveling operation points: After starting the laser leveling machine, adjust the height and angle of the scraper according to the laser signal to ensure that the scraper maintains an appropriate distance and angle from the ground. During operation, the stability of the scraper must be maintained to avoid adverse effects such as shaking or ripples on the scraper. At the same time, the leveling speed must be controlled according to construction requirements to ensure the best leveling effect. 3. Construction quality monitoring: During the leveling process, the construction quality should be monitored in real time to observe whether the ground is flat and smooth, and whether there are cracks, sand and other defects. If problems are found, the machine should be stopped immediately for inspection and equipment parameters or construction methods should be adjusted to ensure that the construction quality meets the design requirements. • • • ★ • • •Conservation and Protection • • • ★ • • • After the laser leveling construction of the floor project is completed, certain maintenance and protection work is required to ensure the durability and beauty of the floor. 1. Maintenance measures: The floor should be maintained within a period of time after the construction is completed (usually 7-14 days). During the maintenance period, adverse factors such as heavy pressure and flooding should be avoided, and the floor surface should be kept dry and clean. At the same time, laser leveling construction technology for floor engineering can be used. • • • ★ • • •Conservation and Protection (continued) • • • ★ • • • 1. Use special curing agents to maintain the floor surface to enhance the wear resistance, dustproof and anti-slip properties of the floor. 2. Protection measures: During the use of the floor, necessary protective measures should be taken to prevent the floor from being scratched, worn and contaminated. For example, set up protective mats or anti-slip mats on the passages in and out of the construction area to reduce wear and tear on the floor: clean and maintain the floor regularly, and remove dirt and debris in a timely manner. • • • ★ • • •Quality inspection and acceptance • • • ★ • • • Quality inspection and acceptance are important links to ensure the quality of laser leveling construction of floor projects, and they need to be carried out in strict accordance with relevant standards and specifications. 1. Quality inspection: During and after construction, the floor should be inspected for various quality indicators, including flatness, levelness, strength, wear resistance, anti-slip, etc. The detection method can use a combination of visual inspection, measuring instrument measurement, laboratory testing and other methods to ensure that the detection results are accurate and reliable. 2. Acceptance standards: The acceptance standards for laser leveling construction of floor projects should comply with relevant national standards and specifications, as well as the stipulations in the project contract. During acceptance, check whether the various quality indicators of the floor meet the requirements and whether there are defects such as cracks, sand, and hollows. If problems are found, rectification and repair should be carried out in a timely manner to ensure that the floor construction quality meets the acceptance standards. 3. Acceptance procedure: The acceptance procedure should include three stages: initial inspection, preliminary inspection and final inspection. The initial inspection is carried out during the construction process, mainly to check whether the construction technology of each roof meets the requirements; the re-inspection is carried out after the construction is completed, and all quality indicators of the floor are comprehensively tested; the final inspection is during the maintenance period Conducted after completion, the final quality of the floor is evaluated and confirmed. During the acceptance process, relevant records and documentation should be compiled for subsequent review and audit. • • • ★ • • •Summary• • • ★ • • •  The laser leveling construction technology for floor engineering is an efficient and accurate construction method that can effectively improve the flatness and construction efficiency of the floor. During the construction process, various operations should be carried out strictly in accordance with the construction technology requirements to ensure The construction quality meets the design requirements. At the same time, during the construction process and after the construction is completed, necessary maintenance and protection work should be carried out on the floor to extend the service life and aesthetics of the floor. Finally, through the quality inspection and acceptance process, the reliability and stability of the laser leveling construction quality of the floor project are ensured.

Concrete curing is a key link to ensure the quality of concrete. The following points need to be noted: 1. Maintain appropriate humidity and temperature: During concrete curing, appropriate humidity and temperature should be maintained to promote the hardening and strength development of the concrete. Excessively high temperature and leakage may cause concrete to crack or deform, while too low temperature and humidity may cause drying shrinkage cracks on the concrete surface. Therefore, appropriate moisturizing and heat preservation measures need to be taken according to specific maintenance conditions and requirements. 2. Avoid excessive exposure time: During the setting curing period, the exposure time of surface mixing should be minimized, and the exposed surface of the concrete should be tightly covered in a timely manner to prevent surface moisture from evaporating. Before the concrete of the exposed surface protective layer is initially set, the covering should be rolled up, and the surface should be rubbed with a trowel at least twice to make it flat and then covered again. At this time, care should be taken that the covering should not directly contact the concrete surface until the concrete is finally set. 3. Increase the thickness of the protective layer appropriately: In order to increase the wear resistance and durability of concrete, the thickness of the protective layer can be appropriately increased. When pouring concrete, you can lay a layer of plastic film or wet cloth on the surface to keep the concrete surface moist and smooth. During the maintenance period, the thickness of the protective layer should be checked regularly to ensure that it meets the design requirements. 4. Control the construction temperature: During the concrete construction process, the construction temperature should be controlled to avoid excessively high or low temperatures affecting the quality of the concrete. During summer construction, measures should be taken to reduce the temperature of concrete entering the mold to avoid the phenomenon of "thermal bridge"; during construction in winter, measures should be taken to increase the temperature of concrete entering the mold to avoid the phenomenon of "cold bridge". 5. Regular inspection and maintenance: During the concrete curing period, the concrete structure should be inspected and maintained regularly to ensure its quality and safety. If cracks, deformation or other problems are found in the concrete structure, timely measures should be taken to repair and reinforce it. In short, concrete curing is a key link to ensure the quality of concrete. It is necessary to pay attention to maintaining appropriate humidity and temperature, avoiding excessive exposure time, appropriately increasing the thickness of the protective layer, controlling construction temperature, and regular inspection and maintenance. Only in this way can we ensure that the strength and durability of the concrete structure meet the design requirements and provide a strong guarantee for the safety and quality of the construction project.