Laser leveling machine usage skills and material ratio
The traditional artificial road leveling technology gradually fades out of people's vision. In this era of rapid development, road surface laser leveling machines have brought unprecedented development prospects to road construction. Through human-machine cooperation, road leveling technology has reached a high level. . When using the laser leveling machine, of course, you must have certain computer operation skills, and you must also have certain small skills. After all, the fully intelligent robot laser leveling machine has not yet come out, and 12 years of professional production technology will explain how to use it for you. Tips for laser levelers.
If you want to build roads with good quality, of course, you must pay attention to the choice of concrete. Concrete must be produced, conveyed or pumped to the flooring site by a commercial concrete production plant. Concrete specifications: C25~C30 concrete, the 28-day strength is not less than 25MPa, determined according to the design requirements.
Water-cement ratio: not more than 0.5, no water can be added during the feeding process.
Cement: Use ordinary Portland cement with a grade of not less than 42.5. Aggregate: Well-graded aggregate should be used. Crushed granite or pebbles are used as coarse aggregate, and the maximum diameter is not more than 25mm. The fine aggregate is clean river sand with a fineness modulus of 2.4-2.7.
Concrete mix ratio: the amount of cement is not less than 350Kg/m3. In order to avoid surface quality problems, the sand rate should be controlled at 35% to 40%. Concrete slump: 14±2cm, maximum 16cm.
Setting time: The initial setting time should be controlled within 3-5 hours.
