How to judge the wear resistance of power trowel blades?

For large-scale industrial plants, the quality of concrete floor construction directly affects the normal production. Therefore, the floors of industrial plants now generally require special bearing capacity, anti-slip wear resistance, and flatness. Through practical research, we found that in the construction of steel fiber concrete wear-resistant ground in industrial plants, using a wider range of concrete laser leveling/ leveling machines for leveling, coupled with driving double-disc trowels for ground finishing, can Greatly improve the construction quality and speed of the floor. The following briefly introduces the characteristics, principles, processes and benefits of the construction of the concrete laser leveling/ leveling machine + car troweling machine. ◤Construction method characteristics◥: ◆ Higher construction quality: The floor elevation can reach laser-level precision, and the ground flatness and levelness are more than three times that of traditional manual leveling operations, which can guarantee the owner's requirements for ground flatness and levelness. ◆ Faster construction speed: It can greatly shorten the construction period and improve the work efficiency by 100~300% (150~300 square meters of paving work can be completed per hour, and 1500~2500 square meters can be completed every day on average), and the manpower can be reduced by more than 30%. It is especially suitable for engineering projects that require tight construction schedules, large injection areas, and high quality requirements. ◆ Better integrity of the ground: It is very easy to achieve large-area overall paving. This paving technology can avoid the hollowing problem caused by layered pouring of the floor. On the other hand, it can reduce a large number of construction joints and make the overall floor Sex is better. ◆ The post-maintenance cost of the ground is greatly reduced: due to the large-area overall paving, the construction joints can be reduced by 3-5 times, and the construction joints are easily damaged by the load, which can greatly reduce the post-maintenance cost of the ground. ◆ Wide scope of application: Not only can it be constructed on reinforced concrete ground with single-layer or double-layer steel mesh. Among them, the light-duty laser leveling machine is suitable for all kinds of concrete floors and reinforced concrete floors with single or double-layer steel mesh, especially suitable for large-scale, high-quality ground construction. ◤Process Principle◥: ◆ Concrete laser leveling machine leveling principle: use precision laser technology, closed-loop control technology and highly precise hydraulic system to achieve leveling under the automatic control of the computer. This closed-loop control can adapt to the elevation of the concrete surface and can Automatic adjustment 6 times. ◆ Concrete laser leveling machine leveling principle: Rely on the hydraulically driven leveling head, cooperate with the laser system and computer control system to complete the leveling work while automatically leveling. The leveling head is equipped with a scraper with integrated design and a leveling beam with a vibrator, which integrates all leveling work into one body. The computer control system automatically adjusts the elevation 6 times per second in real time, and the vibration frequency of the vibrator with balanced design can reach 30005000 times per minute. ◆ Principle of driving-type troweling machine finishing: the driving-type troweling machine is equipped with a double-disk knife holder, and the hydraulic drive system provides power and torque for the two non-overlapping knife holders respectively. To achieve better results, use the joystick on the handle to control the sprinkler system, so that the dry ground can be sprinkled at any time for remediation. ◤Construction process◥: Construction preparation ➨ D ividing separation joints ➨ Processing the ground base ➨ Supporting construction formwork ➨ Setting up laser leveling system and debugging equipment ➨ Pouring concrete ➨ Leveling with concrete laser leveling machine ➨ Manual leveling after mechanical leveling ➨ Disc extraction ➨ Scattering Abrasion-resistant aggregate ➨ disk operation ➨ drive-on trowel finishing ➨ maintenance and cutting. Compared with the original concrete floor construction technology, the benefits of using the dual-machine operation of concrete laser leveling machine + driving trowel machine are: fast construction speed, low construction investment, good overall appearance of the ground, and large investment in ground construction joints and corresponding materials. reduce and so on. In the future, with the continuous improvement of construction quality requirements for building ground engineering, this construction method will be widely promoted and applied.

Ride-on trowels have now basically become the main equipment for pavement polishing. They are loved by everyone because of their simple and convenient operation and fast operation speed. Ride-on trowels with such good operating results also need to be well maintained on a daily basis. To work, it is correct and effective to start from these aspects. 1. Clean the fuselage regularly, and clean the sticky concrete on the fuselage and the trowel grinding disc promptly after the construction is completed to avoid damage to the inside of the machine; 2. The trowelling machine constantly vibrates and changes speed when working. Some bolts may become loose. The tightness should be checked frequently and adjusted in time; 3. During use, lubrication and maintenance of all parts of the machine must be done frequently to avoid wear and tear of the machine parts; 4. When the trowel is not in use, it should be placed on a flat ground to prevent the trowel disc from deforming and affecting its next use; 5. Check the oil levels of various oils frequently and add them in time when insufficient. Taking good maintenance measures for your trowel machine will not only maintain the working efficiency of the machine, but also effectively extend the life of the machine and allow your project to be completed ahead of schedule. Therefore, all aspects of maintenance cannot be ignored.

Acceptance standards for quality concrete in building floor projects 1. General principles 1.1 Purpose This standard clarifies the specifications and standards for quality concrete acceptance of building ground projects to ensure that the project quality meets the design requirements and is safe to use. 1.2 Scope of application This standard applies to the acceptance of concrete materials in building ground projects, including requirements for raw materials, construction technology, quality inspection and acceptance, and safe and civilized construction. 2. Material acceptance standards 2.1 Cement When using cement, cement with product quality certificate and on-site inspection report should be selected, and on-site acceptance should be carried out in accordance with regulations. After the cement enters the site, it should be stored separately according to different varieties, labels, and factory dates, and signs should be set up. It is strictly prohibited to use expired, damp, or agglomerated cement. 2.2 Sand and stone Sand and stone should meet the design requirements, be free of impurities such as silt and stone powder, and have particle size and gradation that meet specification requirements. For projects with special requirements, special sand and stone should be used. 2.3 Water When using tap water or well water, make sure the water is clean and free of impurities such as oil, acid, and alkali. The chloride ion content in water should not exceed specification requirements. 2.4 Admixtures Admixtures should meet the design requirements, have product quality certificates and on-site inspection reports, and undergo on-site acceptance in accordance with regulations. The type and dosage of admixtures should comply with the design and specification requirements and should not contain ingredients harmful to the human body. 3. Construction process acceptance standards 3.1 Template installation Design calculations should be carried out before the formwork is installed, and the formwork should be made and installed in accordance with the design requirements. The strength and stiffness of the formwork should meet the construction requirements, and the joints should be tight, smooth, and free of slurry leakage. The formwork support system should be firm and stable and must not tilt or shake. After the formwork is removed, the surface should be kept clean and free of residue. 3.2 Steel bar binding Rust removal treatment should be carried out before the steel bars are bound. The specifications, models, quantities and spacing of the steel bars should meet the design requirements. The steel bars should be tied firmly and not loose. The joints of the steel bars should comply with the specification requirements, and the welding quality should comply with the design and specification requirements. The thickness of the protective layer of steel bars should meet the design requirements. When cement mortar pads are used, the number of pads should not be less than 4/m2. 3.3 Concrete pouring Before pouring the compacted soil, the formwork, steel bars, etc. should be inspected to ensure that they meet the construction requirements. The slump of concrete should comply with the design and specification requirements, and no water or additives should be added to the mixer at will. When pouring the compacted soil, it should be carried out in layers. The thickness of each layer should not be too large, and it should be vibrated densely without vibration leakage. After the concrete pouring is completed, the surface should be polished and compacted in time to prevent cracks. 3.4 Maintenance After the concrete pouring is completed, curing should be carried out in time, and the curing time should not be less than 7 days. During the curing period, the concrete surface should be kept moist to prevent shrinkage cracks. When using cover watering for curing, the frequency of watering should be enough to keep the concrete in a moist state. When using plastic film for curing, the plastic film should remain completely sealed and water-tight. After the curing is completed, the formwork should be removed promptly and the finished product should be protected in accordance with regulations. 4. Quality inspection and acceptance standards 4.1 Essentials The quality of building ground engineering should comply with the design requirements and relevant specifications, and the surface should be smooth, smooth, and free of cracks, pitting and other defects. The dividing joints should be neat and straight, and there should be no staggered joints. There should be no leakage at the junction between the floor and the wall. Ground engineering with functional requirements should meet the requirements of relevant functional functions.