Introduction to the basics of slipform machine construction

The construction floor construction industry is currently developing relatively fast, and with it, the use of construction machinery such as laser levelers is becoming more and more frequent. So, why must we recommend this kind of equipment for everyone among the many construction machinery? In fact, there are certain reasons. Next, let us take a look at the introduction of the following articles! Compared with traditional laser leveling machines, laser leveling machines have several advantages in building floor construction: 1. Reduce labor cost and double increase efficiency: There are many people involved in the construction of the traditional craft, which requires support formwork (channel steel), spotting, and paving. About 20 people are needed. The daily construction area is 700 square meters. The total number of people who use the concrete laser leveling machine is reduced by more than half compared with the traditional process. Can be operated by one person. The daily construction area is 2500-3500 square meters, which greatly reduces labor costs. 2. Laser alignment, high precision, low error: The traditional process of leveling requires support formwork to control the elevation of the ground and pull the control line. The elevation error is large. The levelness and flatness of the entire floor cannot be guaranteed. It adopts laser point-to-point emitter, which is suitable for large-scale one-time paving. There is a laser measurement and control system to control the elevation in real time. There is no need for pulling wires for leveling, and there is no need for side plates in the middle to control the elevation of the ground. In this way, the elevation error caused by the vibration of the formwork (channel steel) during the construction process is avoided, and the elevation error caused by traditional artificial block formwork is also reduced. 3. Better flatness and integrity: Traditional craft construction, one day of formwork and one day of watering, can only be skipped one by one for construction, which has great limitations, cannot be continuously operated, and the integrity is not good, which is easy to cause cumulative errors in construction joints. The laser leveling machine paves a large-area floor at one time, with higher efficiency and integrity. The completion of the entire floor makes the ground integrity better, which is completely impossible for traditional construction. 4. The ground is denser and more uniform: The 4000 times per minute high-frequency vibrator allows the leveling head vibrator to produce uniform high-frequency vibration, making the concrete floor more dense and uniform. As the leader in the design of concrete laser leveling machines, the laser leveling machines produced by our company can realize large-scale construction. By solving the concrete surface layer at one time, all the "common quality problems" caused by the secondary method are completely eliminated. We will continue to provide customers with reliable products and better services.

  🎈Changes in water-cement ratio: Slump mainly affects pavement strength by affecting the water-cement ratio of concrete. Generally speaking, the larger the slump, the more water is used in concrete. According to the theory of concrete strength, under the condition of certain cement type and dosage, the larger the water-cement ratio, the lower the strength of concrete after hardening. This is because excessive water will form more pores and channels during the hardening process of concrete, and the pores left after the evaporation of water will reduce the density of concrete, thereby reducing the strength of concrete. For example, when the slump increases by 20-30mm from the appropriate value, the water-cement ratio may increase by 0.05-0.1, and the 28-day compressive strength of the pavement may decrease by 10%-20%. 🎈Cement slurry distribution: The appropriate slump can make the cement slurry evenly distributed in the concrete, wrapped on the surface of the aggregate, play a good bonding role, make the internal structure of the concrete dense, and thus ensure the strength of the pavement. If the slump is too small, the concrete is too dry and hard, and the cement paste is difficult to evenly wrap the aggregate, which will lead to more uncemented aggregate particles in the concrete, forming a weak link and reducing the overall strength of the road surface. On the contrary, if the slump is too large, the cement paste will sink due to its own weight, resulting in uneven distribution inside the concrete, resulting in relatively less cement paste in the upper part of the concrete and lower strength, while the lower part may be segregated due to excessive cement paste, which also affects the strength of the road surface. 🎈Aggregate interface bonding: The interfacial bonding strength between aggregate and cement paste in concrete is crucial to the overall strength of concrete. When the slump is appropriate, the cement paste can fully contact and bond well with the aggregate surface. When the slump is not appropriate, such as too large, the cement paste layer around the aggregate will be too thick. During the hardening process of concrete, due to the large shrinkage of the cement paste, micro cracks are easily generated at the interface between the aggregate and the cement paste, weakening the interfacial bonding strength, thereby reducing the strength of the road surface; and if the slump is too small, the cement paste cannot wet the aggregate surface well, which will also lead to poor interfacial bonding and affect the strength of the road surface. In concrete pavement construction, the slump should be strictly controlled, and concrete with appropriate slump should be selected according to construction conditions and design requirements to ensure that the pavement strength meets the design standards.    

Inadequate maintenance will affect the use effect of the concrete laser leveling machine! The word "maintenance" is the prerequisite for the normal use of mechanical equipment. The laser leveling machine is a kind of precision paving equipment. The use of laser self-leveling completely achieves the purpose of automation, but if the maintenance is not in place, the equipment may be damaged. There are various problems that affect the subsequent normal use. Let's find out how to maintain the laser leveling machine. During the use of the laser leveling machine, due to the different working intensity, there may be some minor faults after use. At this time, road builders should pay attention to it. After use, it is necessary to properly do some daily maintenance for the machine. This can prolong the service life of the machine equipment. 1. Check the connection and fastening of the parts of the laser leveling machine, whether the connecting bolts are loose or broken, and tighten or replace them if necessary. Check for leaks and eliminate leaks in various parts in time. Pay attention to the quantity of engine oil, fuel, coolant and hydraulic oil, and add new oil to the scale indicated on the oil mark as required. Whether there is proper amount of grease in the centralized lubrication device. 2. Be careful not to work under the maximum load that the machine can bear, and use the machine within your ability. As a laser leveling machine manager, when appointing an operator, the laser leveling machine random data and operation manual should be handed over to the operator, so that they can normally grasp the mechanical properties and operating procedures, and should not arbitrarily hand over the relevant information Buckle it down. 3. Try to ensure the uniform addition and subtraction of the mechanical load, so that the machinery is in a relatively gentle load change. Specifically, it is necessary to increase and decrease the accelerator more evenly to prevent the engine and working devices from fluctuating greatly. 4. There will be a lot of dust and mud on the laser leveling machine after construction. First, wipe off the dust on the laser leveling machine, and wipe off the dirt and oil stains with tissue paper or cotton cloth. 5. If the laser signal is lost during the construction of the laser leveling machine, the machine needs to be restarted, and the interval time needs to be more than ten seconds. 6. If there are too many stains, you can use a soft cloth to soak in water diluted with a neutral detergent, and then wring it out to clean it. The manufacturer of Leilong laser leveling machine reminds everyone to remember not to use volatile oil, thinner, gasoline and other chemicals. Product cleaning and wiping. Developing a good habit of operating the laser leveling machine will be of great help to the construction and storage of the laser leveling machine in the future. This will not only improve the work efficiency, but also extend the service life of the machine to a certain extent .