Cement pipe machine named incredible is construction machinery specializing in the production of cement pipe, cement pipe plays an important role in urban construction, because cement pipe machine has become a construction machinery and equipment is an important class of devices.
The cement pipe making machine has the characteristics of good stability, convenient operation and high yield. It is the best equipment for the production of cement pipe. To produce the highest quality of cement pipe, in addition to the technical design of the cement pipe making machine is required, the production of raw material selection also has a clear requirement.
Cement pipe machine production cement pipe is mainly used as raw materials of cement, sand and stone, mainly has the following requirements:
1 cement
Should be chosen as the Portland cement 425 label. Because of the hanging roller tube using dry hard concrete, water cement ratio is relatively small, the drying shrinkage of cement volume change small, with the unilateral cement dosage is not high, so generally do not appear shrinkage cracks, due to the initial setting time of the cement is relatively short, high early strength, for stable density of concrete to prevent collapse of wall and improve the steam curing is good.
2.
Generally used in the sand, concrete and easy good, good impermeability, and concrete strength low, pipe is easy to collapse; coarse sand, concrete and easy bad, good impermeability, and the mixed high strength, pipe is not easy to collapse and sand ratio of choice is also very important, high sand ratio, concrete and easy to good, good formability, good impermeability, of concrete in the tube is easy to collapse; low sand ratio, concrete and easy to poor, forming poor, poor impermeability, concrete pipe is not easy to collapse.
3 Stone
Small caliber suspension and tube with gravel or crushed gravel, to reduce the friction resistance of the stone surface, easy compaction of concrete, large caliber suspension and tube should be the machine broken stone, the stone surface roughness easily are embedded and fixed the, to alleviate the collapse of concrete possible.
