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Daily application of steam curing method for cement products and cement pipes

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更新时间:2018年10月31日02:00:29 打印此页 关闭 Clicks: 851 Updated: October 31, 2018 02:00:29 Print this page Close

How to cool down cement products:
Method 1. Use ice instead of some mixing water
We know that ice is a solid state of water. Baicheng Longju Pipeline Engineering Co., Ltd. believes that it is feasible to lower the temperature of concrete through ice, but it is constrained by the use of ice instead of mixing water. So we are weighing the weight of ice in the concrete to ensure that the share is correct.
Option 2: Cool the mixed concrete with liquid nitrogen
We all know that the temperature of liquid nitrogen is very low. Using liquid nitrogen to cool down can reduce the concrete to the lowest limit temperature.
Method 3, cooling of coarse aggregate
What is coarse aggregate cooling? Coarse aggregate cooling is spraying with cold water or flushing with a lot of water. Coarse aggregate occupies a large share in the concrete mixing process, so we reduce the temperature of the coarse aggregate and reduce the temperature of the concrete.

In order to improve the performance of concrete pipes, China and many other countries have developed more prestressed concrete pressure pipes. This pipe is equipped with longitudinal and hoop prestressed steel bars, so it has high crack resistance and impermeability. In the 1980s, China and some other countries launched self-stressed reinforced concrete pipes. The main feature is that the self-stressed cement (see special cement) is used to swell in the hardening process to prestress, which simplifies the manufacturing process. Compared with steel pipes, concrete pipes can save a lot of steel, extend the service life, and have less plant investment and convenient laying facilities. They have been widely used in factories, mines, oil fields, ports, urban construction and farmland water conservancy projects.

Handle the leakage of cement pipes after splicing
We all know that cement pipes are segment by segment, and we will splice multiple cement pipes during installation. This is because if the splicing operation is not completed, the cement pipe may leak water. Today, the editor of the cement pipe told us about the treatment method of cement pipe leakage.
According to the standard construction, mouth cleaning, chiseling, grouting, caulking, jointing, compaction and polishing. The foundation should also be done well, after the interface should pay attention to maintenance, and later care is also very important.
Use asphalt bast to plug the seam, apply a layer of asphalt on its surface, and then wrap it with linoleum within a certain width of the seam opening, and then apply a layer of asphalt, so-called "two oils and two materials". Culverts are basically treated this way.
Depends on whether you are a mouth pipe or a flat mouth pipe, to ensure that there is no water leakage, the same foundation must be done. You can pour the concrete cushion first and then install the tube, butt joints are flat. The socket pipe should be properly mortared at the lower mouth of the pipe to ensure that the width around the mouth is narrow and common. The seam wipes the seam to block the pipe seam tightly.
The pipe is sealed with a seal at the seam of the pipe, which is a standard operation. Only when the construction is strictly performed according to the construction operation standard, the leakage can be reduced. In order to be 100% watertight, it is necessary to choose a flexible interface, that is, a rubber strip rubber ring interface for the cement pipe. The rubber ring is acquired from the supplier when the cement pipe can be purchased.


Handle the leakage of cement pipes after splicing
We all know that cement pipes are segment by segment, and we will splice multiple cement pipes during installation. This is because if the splicing operation is not completed, the cement pipe may leak water. Today, the editor of the cement pipe told us about the treatment method of cement pipe leakage.
According to the standard construction, mouth cleaning, chiseling, grouting, caulking, jointing, compaction and polishing. The foundation should also be done well, after the interface should pay attention to maintenance, and later care is also very important.
Use asphalt bast to plug the seam, apply a layer of asphalt on its surface, and then wrap it with linoleum within a certain width of the seam opening, and then apply a layer of asphalt, so-called "two oils and two materials". Culverts are basically treated this way.

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