Lanzhou Cement Pipe Plant
In the existing market, cast-in-place pipe sinking piles, precast concrete piles, bored cast-in-place piles and prestressed concrete pipe piles are widely used. Among the above pile types, prestressed concrete pipe piles are widely used due to the advantages of factory prefabrication, high concrete strength, convenient construction, and fast cycle, while cast-in-place pipe sinking piles are difficult to ensure their quality due to the need for on-site production, Due to serious environmental pollution, it is not suitable for geological conditions with thick soft soil layer, which is prone to necking, and the construction period is very long, so it has gradually been eliminated by the market. For example, the Guangdong Provincial Construction Commission has clearly stipulated that the use of immersed cast-in-place piles is not allowed, and the Zhejiang Provincial Department of Construction has also restricted the use of immersed cast-in-place piles.
Lanzhou Cement Pipe Plant
Reinforced concrete cement pipes are very common in our daily life. The common places are urban underground sewage pipes and farmland irrigation pipes, which have gradually become indispensable products for urban development. However, the price of reinforced concrete cement pipes is not always the same. Many factors have a certain impact on the price of cement pipes, so why does the price fluctuate, What are the specific factors? Next, the manufacturer of Pinghu Huafeng cement pipe will explain the factors that affect the price fluctuation of reinforced concrete cement pipe.
Lanzhou Cement Pipe Plant
After the pipeline is laid, the project acceptor will send professionals to carry out re acceptance and testing. If problems occur, they will be repaired in time to eliminate the quality problems of later works. After the construction of Jiaxing cement pipe, the unreasonable design, manufacture, use and maintenance of the cement pipe may cause the natural gas leakage of the pipe, which will lead to an explosion event that will pose a huge threat to people's lives. Therefore, the defect detection of the cement pipe must be carried out at all times. The cement pipe manufacturer will introduce the defects that are easy to occur in the cement pipe, So as to suit the remedy to the case and eliminate potential safety hazards.
Lanzhou Cement Pipe Plant
The cracks on the surface of cement pipe are mostly caused by folding, and the key can be divided into two categories: one is caused by the evaporation and hardening of the water on the surface of cement pipe during rigid concrete pouring. Generally, the average external temperature of cement pipe during rigid concrete pouring is high, while the air humidity in the air is low, so the surface will volatilize and dry, but the interior is still plastic, This causes cracks. The other is caused by the temperature difference between the inside and outside of the concrete caused by the water cement ratio when the cement pipe is hardened. For deeper cement pipes, the foundation will continue to settle due to its own weight during the whole process of concrete pouring of the top cement pipe. When the cement pipe is exposed to building reinforcement or the connecting anchor bolt of the template and other items just before the final setting but not before the final setting, this kind of foundation settlement will be blocked and will immediately cause cracks.
Lanzhou Cement Pipe Plant
More rigorous and standardized measures and construction steps are also proposed for the cement pipeline according to the requirements: first, the surveying and setting out work should be in the charge of a full-time surveyor, and the construction of surveying and setting out records and check filing system should be strictly implemented, using calibrated instruments. According to the design drawings and pile handover records, check the bench marks, establish temporary bench marks, do a good job of protection, and conduct closed resurvey to control the elevation. Secondly, after the trench is excavated in sections, the elevation and elevation shall be reviewed in time to control the elevation of excavation, cushion and foundation surface. Then the block stones are pressed and compacted, the soil is removed, the reinforcement is laid, and the plank is erected Re pouring place.
