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List of contents for this article:
- 1、What is the maintenance method for prefabricated pipe piles PC and PHC
- 2、What are the advantages of prestressed concrete pipe piles
- 3、Application of Curetec NDG Low Pressure Steam System in PC Composite Floor Maintenance
What is the maintenance method for prefabricated pipe piles PC and PHC
Prefabricated PC piles (prestressed reinforced concrete piles) are generally cured by steam, while PHC piles (prestressed high-strength reinforced concrete piles) are mostly cured by autoclave. Steam curing is also used, but it will reduce the mold turnover rate.
In terms of maintenance methods, PC pipe piles are usually cured with atmospheric steam, which takes 28 days to complete the pile driving, and the construction period is long. In contrast, PHC pipe piles are steam-cured in an autoclave, which takes only 3-4 days to complete the process from forming to use, greatly shortening the construction period. Overall, PHC pipe piles are superior to PC pipe piles in many aspects.
The pipe piles are divided into prestressed pipe piles (code PC, strength is C60) and prestressed high-strength pipe piles (code PHC, strength is not lower than C80) according to their strength. The PC piles are cured by steam and are then put into the pool to soak in water for maintenance. The curing period can only be used after 28 days;PHC piles are generally sent into an autoclave after demolding and are cured by 10 atmospheres and 180 degrees high temperature and high pressure steam. The shortest time from forming to use is 3-4 days.
Maintenance method PC pipe piles are generally cured by atmospheric steam, which takes 28 days to pile driving, and the construction period is long. The maintenance of PHC pipe piles is generally carried out in an autoclave after demoulding. After autoclaving at 10 atmospheres (about 0Mpa) and 180 ° C, it only takes 3-4 days from forming to use, shortening the construction period.
What are the advantages of prestressed concrete pipe piles
1. Its advantages: good crack resistance and high rigidity. Because the prestress is applied to the members, the occurrence of cracks is greatly delayed. Under the action of the service load, cracks can not appear in the members or the cracks can be delayed, so the rigidity of the members is improved and the durability of the structure is increased. Save materials and reduce self-weight.
2. Prestressed high-strength concrete pipe piles have many advantages. First of all, its single pile has high bearing capacity and high strength of the concrete of the pile body. It can be driven into dense sand layers and highly weathered rock layers. The bearing capacity is higher than that of immersed pipe cast-in-place piles, bored piles and manual dug piles of the same diameter.
3. Classification Prestressed pipe piles are mainly divided into two levels: prestressed concrete pipe piles (referred to as PC) and prestressed high-strength concrete pipe piles (referred to as PHC). In practical applications, PHC pipe piles are widely used because of their high strength and excellent load-bearing properties.
4. Characteristics and advantages High strength: Pretensioned prestressed concrete pipe piles have high compressive and flexural strengths and can withstand large loads. Good durability: After special processing, the pipe pile has good corrosion resistance and durability, and is suitable for use in various complex environments. Convenient construction: The pipe piles are prefabricated in the factory and directly driven or pressed into the foundation on site. The construction speed is fast and efficiency is high.
Application of Curetec NDG Low Pressure Steam System in PC Composite Floor Maintenance
1. The wide range of application scenarios is another important reason why the ALLCure comprehensive maintenance system is popular. In many building and infrastructure projects, this system has won market recognition for its excellent performance and efficiency. Whether it's new projects or the maintenance of existing facilities, ALLCure provides stable and reliable maintenance solutions.
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