Concrete laser leveling machines mainly ensure the consistency of concrete elevation through the following aspects:
Accurate benchmark setting
Fixed benchmark level points**: Fixed benchmark level points are drawn based on the original level points to provide a unified elevation reference for the entire construction site.
Set up laser transmitter**: Reasonably set the position of the laser transmitter so that it is not blocked by objects and affected by large vibration sources, and ensure that the laser leveling machine can receive signals at any position during the construction process. The laser beam emitted by the laser transmitter forms a reference plane, which is the precise distance between the ground elevation and the laser beam, providing an elevation reference for the leveling machine.
Set up digital receiver**: Install a digital receiver to receive laser signals, and find the 0 point by moving the digital receiver up and down to determine the construction elevation.
Advanced automatic control system
Real-time monitoring and adjustment**: The laser leveling machine is equipped with a variety of automatic control components to monitor the elevation of the leveling head in real time at a frequency of 10 times per second or even higher. The computer control system will compare the received laser signal with the set elevation. Once a deviation is found, it will automatically control the precision hydraulic system to adjust the height of the leveling head in real time, so as to ensure that the flatness and levelness of the paved concrete surface meet the requirements.
High-frequency vibration leveling**: The leveling part works at a vibration frequency of thousands of times per minute, and the leveling work is completed while automatically leveling. For example, the scraper will vibrate up and down at high speed during the movement, beating the gap between the concrete to the minimum, making the concrete more compact and flat.
Strict control of the construction process
Concrete quality control**: Ensure that the slump of the concrete delivered to the platform is consistent each time, and the initial setting time of each batch of concrete is the same; control the water-cement ratio, cement grade, aggregate grading and other parameters to ensure the uniform and stable quality of the concrete, and avoid inconsistent elevation problems caused by differences in concrete performance.
Accurate template elevation**: It is advisable to use steel templates, and the template elevation should be controlled within +0 and -2mm. The template cannot be disturbed during construction, providing accurate boundary and elevation reference for concrete construction.
Standard verification**: Before large-scale construction, use the equipment to conduct a trial, and then use tools such as a laser level to check the floor elevation and adjust the elevation system to the optimal level.
Construction operation specifications**: Follow the standard operation process during construction, such as manually leveling the concrete within the effective range of the telescopic arm of the laser leveler, and then use the laser leveler to complete the vibration, compaction, and leveling work at one time; during the movement of the machine, control the direction so that it maintains a straight line movement state, etc.
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