Steel Cross,Stainless Steel Cross,Corbon Steel Cross,Pipe Fitting Cross Cangzhou Youlong Pipe Fitting Manufacturing Co., LTD , https://www.ypco88.com
When spraying, the spraying pressure of the spraying machine is 0.4MPA, the water pressure should be higher than the wind pressure by 0.1MPA, and the amount of water added is controlled by the shooter's experience. The water-cement ratio is 0.4-0.5. In the spraying process of the spraying machine, according to the change of the discharging material, the amount of water supply is adjusted in time to ensure accurate water-cement ratio, and the sprayed wet concrete should have no dry spots, no runny, strong adhesion and less rebound material. A shot of concrete thickness 50-70mm, and timely re-spray, re-spray interval time shall not exceed 2 hours, or use high pressure water to re-wash the spray surface.
After the spraying of the spraying machine is over, the sprayed layer must be continuously sprinkled and maintained for more than 28 days. Each class should be sprinkled water within 7 days. Once the injection is completed, the elastics should be immediately collected and used in the process.
Does the sprayer have requirements for concrete?
Is the sprayer required for concrete? Before the work of the spraying machine, we must first put old tape at the spraying site to collect the rebound material. The rebound rate should not exceed 15%. The spraying sequence of the spraying machine should be preceded by a wall and arched from the bottom of the wall base. The vertical distance between the sprayer head and the sprayed surface shall be 0.8M—1.0M. Artificial mixes use tidal mixes. Cement, sand and gravel should be thoroughly mixed and mixed three times to make them even.