Speaking of cement pipes, I believe we will not feel rusty. The wastewater and industrial waste gas generated in our daily life and industrial development need to be discharged through the cement pipes. During the discharge process, especially the discharge of industrial wastewater, the corrosion of cement pipes is very serious. In order to ensure the corrosion resistance of cement pipes, the requirements of raw materials in the production of cement pipes are very high. The editor of Wanxin will tell you about the selection of raw materials in cement pipe production.
The raw materials for making cement pipes are: cement, sand, and stone.
1. Cement pipe making machine cement selection: general portland cement should be used, because dry hard concrete is used, the mixed water ash is relatively small, and the shrinkage volume of the cement is small. The amount of cement alone is not high, so it is generally not presented. Shorten cracks. The initial setting time of the cement pipe making machine is relatively short and the initial strength is high. As for the stability and compactness of the concrete, avoiding the collapse of the inner wall, and improving steam curing, it is recommended to choose general portland cement.
2. Selection of sand for cement pipe making machine: Don't choose too fine or too rough, generally use medium sand, concrete has good workability and good impermeability, but the concrete strength is low, and the pipe is easy to collapse; the sand is partial Coarse, poor concrete workability, good impermeability, and high mixed strength, not easy to slump in the pipe making, the selection of sand rate is also important, high sand rate, good workability of concrete, good formability, impermeability Good, and the concrete in the pipe is easy to fall; the sand rate is low, the concrete is poor in workability, the formability is poor, the impermeability is poor, and the concrete in the pipe is not easy to fall.
3. Selection of stones for cement pipe making machine: Small-diameter suspension rollers are made of pebbles or broken pebbles to reduce the surface resistance of the stones and make the concrete simple and compact. Large-diameter suspension rollers should be made of machined stones. Relatively rough, the produced concrete is simply glued together and can effectively prevent the concrete from collapsing. In addition, the selection of pebbles or broken stones can reduce conflicts.