Which one has higher working efficiency and which one lower between concrete laser leveling machine and paver?

  – Tools and methods: Use a 2-meter ruler and a feeler gauge for measurement. Place the 2-meter ruler on the concrete surface so that it fits tightly against the ground, and then use the feeler gauge to measure the maximum gap between the ruler and the ground. For general industrial and civil building floors, the allowable flatness deviation is usually within 4-5 mm; for places with high precision requirements, such as electronic chip production workshops, precision instrument laboratories, etc., the flatness deviation requirement may be within 2-3 mm. If the measured gap is within the specified range, it means that the compaction effect of the trowel meets the quality standards in terms of flatness. – Visual inspection to assist judgment: In addition to tool measurement, it is also important to observe whether the ground has obvious waves, potholes or bulges by naked eyes. Stand at a certain distance (such as 5-10 meters) to observe the overall effect of the ground to see whether the light is reflected evenly on the ground. If the ground reflects light evenly without obvious changes in light and shadow, it usually means that the ground is relatively flat and the compaction effect is good. – Rebound hammer test: Use a rebound hammer to test the concrete surface. The rebound hammer hits the concrete surface and infers the strength of the concrete based on the rebound value, which indirectly reflects the density. During the test, multiple test points should be selected on the concrete surface (generally no less than 3 points per 10 square meters) to calculate the average rebound value. Concrete of different strength grades has a corresponding standard range of rebound values. For example, the rebound value of C30 concrete is generally between 34 and 46. If the rebound value obtained by the test is within the standard range of concrete of the corresponding strength grade, it means that the concrete density is high and the compaction effect of the trowel is good. – Core sampling analysis: In some cases with extremely high quality requirements or disputes, the core sampling method can be used. Use professional core drilling equipment to take out core samples with a diameter of usually 100-150 mm in the concrete structure. Observe the appearance of the core sample, which should be uniform in texture and without obvious pores and stratification. Then send the core sample to the laboratory for compressive strength testing and porosity analysis. The compressive strength meets the design requirements and the porosity is low (generally no more than 5% – 8%, depending on the specific project requirements), indicating that the density of the concrete meets the quality standards and the compaction effect of the trowel machine is qualified. – Visual observation: Carefully observe the trowel traces on the concrete surface. The trowel traces should be uniform and continuous, without obvious depth or interruption. If the trowel traces are uniform, it means that the pressure applied by the trowel machine to the ground during work is uniform and the compaction effect is good. For example, after the construction of a large area of ​​parking lot floor, the trowel traces on the entire floor should show a consistent texture, without local roughness or over-troweled areas. – Touch inspection: Touch the concrete surface with your hand to feel whether its smoothness and hardness are uniform. If the surface feels consistent and there is no local softness or over-hardness, it can also indicate to a certain extent that the compaction effect is uniform and meets the quality standards. – Test block test under the same curing conditions: During the concrete construction process, make test blocks that are cured under the same conditions as the actual construction concrete. At the specified age (such as 7 days, 28 days), the compressive strength of the test block is tested, and the test results are compared with the design strength grade. If the strength of the test block can reach or exceed the design strength according to the expected growth curve, it means that the compaction operation of the trowel machine has no adverse effect on the strength of the concrete, and the compaction effect meets the quality standards. – On-site rebound-core drilling comprehensive method evaluation: Combined with the rebound hammer test and core drilling sampling, the strength of the on-site concrete structure is comprehensively evaluated. The rebound hammer is used to quickly screen out areas that may be insufficient in strength, and then core drilling sampling is performed on these areas for verification. If the overall strength of the on-site concrete meets the design requirements, and the strength distribution in different areas is relatively uniform, it means that the compaction effect of the trowel machine is good and meets the quality standards.

  LASER LEVELING MACHINE NEEDS TEMPERATURE CONTROL ! ! ! No matter it is winter or summer, the use of laser leveling machine is inseparable from road construction. In the process of using leveling machine in summer, some parts inside the machine may overheat due to the increase in temperature. Thus affecting the leveling effect of the laser leveling machine. In order to improve the use value of the equipment and improve work efficiency, we need to do a good job of temperature control during the working process of the laser leveling machine. First of all, controlling the temperature of the laser leveling machine is one of the keys to ensure the quality of leveling. When the equipment is being leveled, it should meet the requirements of relevant standards according to the type of asphalt, label, consistency, ambient temperature, and leveling thickness. Secondly, when the construction temperature of expressways and highways is lower than 10°C, and when the construction temperature of other grades of roads is lower than 5°C, leveling is not suitable. If it is necessary to carry out leveling work, the temperature of the road leveling machine should be increased, and there are also low-temperature leveling requirements that meet the regulations. The transport vehicle must have insulation measures, and high-precision leveling machines should be used as much as possible to start paving. After the plate is heated and leveled, it is pressed immediately to shorten the length of the press. It should be remembered that during leveling, the requirements of relevant standards should be met according to the type of asphalt, label, consistency, ambient temperature, leveling thickness, etc. In this case, it is relatively simple and easy to control the temperature. Mastering the performance characteristics of the laser leveling machine will help us do a good job in temperature control. The above is the relevant knowledge that the manufacturer told you. I hope that through our narration, you can understand the temperature control method of the laser leveling machine during the construction process, and hope that your equipment can run smoothly. Contact us, we look forward to cooperating with you.

  During the construction process, the construction effect of the concrete laser leveling machine will be affected by different climatic conditions. Here are some specific changes and countermeasures:   ● Under high temperature conditions, the setting speed of concrete will be accelerated, which may cause the leveling machine to be unable to perform fine leveling in time. It is recommended to carry out construction during periods of low temperature, or control the amount of concrete poured at one time to avoid too fast initial setting.   ● Low temperature will prolong the hardening time of concrete, and heating equipment or antifreeze may be required to ensure that the concrete can solidify and level under suitable conditions.   ● In a humid environment, the drying speed of concrete may slow down, affecting the construction progress. Measures should be taken to keep the construction site dry and avoid construction on rainy days.   ● Strong winds may affect the stability of the laser signal. It is recommended to set up wind barriers at the construction site to reduce the impact of wind on the laser leveling machine.   ● In rainy weather, measures should be taken to protect the concrete surface to prevent water erosion from affecting the strength and surface quality of the concrete.   Through the above measures, the laser leveling machine can maintain good construction effects under different climatic conditions and ensure construction quality and efficiency. For specific construction methods and technical details, it is recommended to refer to relevant construction technical information and industry standards to ensure the implementation of best practices.