Everyone should not be unfamiliar with cement pipes . Cement pipes can be said to be important information in urban construction. They ensure people's daily supply, including groundwater, underground pipelines, and so on. So what materials are required for the production of cement pipes ? Briefly introduce.
1. Stones and small-caliber pipes are made of pebbles or broken pebbles. This can reduce the surface friction resistance of the stones and ensure the compactness of the concrete. Large-caliber can use mechanical crushed stones. The solid feature reduces the possibility of concrete collapse.
2. For cement, ordinary Portland cement can be used, because the suspension roll pipe is made of dry hard concrete, and the mixed water ash is relatively small. Because the amount of cement alone is not very high, it will not show shrinkage cracks. The time is relatively short and the early strength is relatively high to prevent the inner wall from falling down.
3. Sand, mainly using medium sand, can have better impermeability, and the strength of the concrete is relatively low, the sand is too thick, and the pipe is not easy to collapse. The selection of the sand rate is also important, the molding function is good, and the impermeability Good function, low sand rate, poor concrete workability, poor formability, poor anti-seepage function, and concrete is not easy to collapse in pipe making.