Guangzhou cement pipe manufacturers explain the choice of raw materials in cement pipe production. Now many occupations and many projects need to use cement pipes. Its quality is a guarantee for large-scale projects. Generally, the factors affecting the quality and function of cement pipes are cement. Pipe making equipment, processing and selection of raw materials for cement pipe making. When it comes to the choice of raw materials, pay attention to the following key points.
1. The choice of cement pipe making machine cement: General Portland cement should be used, because the use of dry hard concrete, the mixed water ash is small, and the dry shrinkage volume of the cement is small. The amount of cement alone is not high, so it generally does not show shortening cracks. The initial setting time of the cement pipe making cement is relatively short and the initial strength is high. It is good for the stability and compactness of the concrete, preventing the inner wall from slumping, and improving the steam curing. Therefore, it is advisable 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, good concrete workability, good anti-seepage function, and low concrete strength, easy to collapse in pipe making; Coarse, poor concrete workability, good anti-seepage function, high mixed strength, not easy to slump in pipe making, sand rate selection is also very important, high sand rate, good concrete workability, good formability, anti-seepage function Good, but 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 pebble or broken pebbles to reduce the frictional resistance on the surface of the stones and make the concrete compact and compact. Large-diameter suspension rollers should be made of crushed stones. Compared with the rough, the produced concrete sticks together briefly, and it can effectively prevent the concrete from sinking. Other choices are pebbles that have been crushed to reduce friction.
The selection of raw materials is a fundamental process in the production of cement pipes, and it is also a process that affects the quality of cement pipes, so it cannot be ignored. Interested friends can contact us and we will be happy to help you!