logo

Contact:

        PRODUCT 产品展示
        CONTACT US 联系我们
            Liuzhou City Qiaosha Engineering
            Tube Material Co.,Ltd.
            Liuzhou City Qiaosha machinery Co.,ltd.
            Tel:0772-3269187-8101
            Fax:0772-3269048
            E-mail:lzbwg@163.com

        PRODUCT 产品详情

        Your present location:Productbellows class > Round plastic bellows
        • Product Name: Round plastic bellows

        inquiry

        Corrugated plastic pipe
         

        Existing bonded prestressed structural problems in
         

                 We know that under high stress tendons are extremely sensitive to corrosion, erosion once serious consequences. Existing bonded prestressed structures, tendons exist galvanic corrosion and oxidation corrosion, corrosion problem is to be addressed it filled the gap between embedded channels and tendons through the grout. Its approach is embedded in the concrete of metal bellows, bellows and between tendons with grouting machine (or screw pressure plunger pump) into the stirred aqueous slurry. This traditional grouting process instances by many engineering testing, have found the following problems: grouting is not dense, not full, the lack of effective protection of tendons, there are accidents, reducing the durability of the structure.

         

        Advantages of corrugated plastic pipe with metal bellows comparison

        1, the friction is small:

        Corrugated plastic pipe made ​​of high density polyethylene HDPE plastic made ​​from small coefficient in the following table than traditional metal bellows wear resistance:

        μ - Strand coefficient of friction with the pipe walls

        Κ - consider the impact of partial differential channels on the friction coefficient

        Two kinds of corrugated pipe friction coefficient theoretical value comparison table

         

        Bellows species

        μ

        Κ

        Metal bellows

        0.16~0.25

        0.001

        Corrugated plastic pipe

        0.12~0.19

        0.001

         

        2, sealing: plastic corrugated pipes do not leak, watertight, the protection strand bundle is extremely beneficial.

        3, corrosion resistance: in the course structure, corrugated plastic pipe can effectively protect the tendons are not galvanic corrosion and oxidation corrosion, and do not have to worry about long-term storage in the construction process will cause rust and other corrosion damage.

        4, high strength, stiffness: not afraid to step on the pressure at the construction site, can not easily be broken chisel vibrators when pouring concrete, and metal bellows can not step on the pressure, deformation, easily vibrators Demolition.

        5, the slurry can improve mobility, reduce water-cement ratio, reducing air inside the tubes; enhance fullness and density of the slurry so that tendons get more effective protection.

        6, for some shaped key parts, such as curved, U-shaped, vertical tendons better reflect the advantages of using plastic corrugated pipe for vacuum filling.

        Advantage spiral corrugated plastic pipe and plastic spacer ring sealed bellows comparison:
         

        A connecting bellows: spiral corrugated plastic pipe connections, reliable, simple, convenient and will not fall off;

        2, spiral corrugated plastic pipe is more conducive to the slurry flow in the pipe, and can assure the vacuum grouting slurry filled;

        3, corrugated plastic pipe spiral banding is easier when moving, accurate positioning and easy-strand rope when worn through.

        4, spiral corrugated plastic pipe to withstand dynamic loads more favorable for the bridge structure.

        Our independent research and development and production of spiral corrugated plastic pipe was September 15, 2004 to apply for a patent, Patent No. ZL0328069.4-- "prestressed corrugated plastic pipe with a spiral"

         

        Round plastic bellows Technical Data Sheet

         

        Inside diameter

        Universal holes

        dmm

        ø15Strand

        ø13Strand

        Ø30

        -

        1

        Ø40

        1

        -

        Ø50

        2 ~3

        2~5

        Ø55

        4~5

        -

        Ø60

        -

        6~8

        Ø70

        6~7

        9

        Ø80

        8~9

        10~14

        Ø85

        9~12

        -

        Ø90

        10~17

        15~22

        Ø100

        18~19

        25~27

        Ø110

        20~22

        31

        Ø120

        21~27

        34~37

        Ø130

        27~34

        43~44

        Ø140

        34~37

        54~55

        download:

        Copyright © 2014 Liuzhou City Qiaosha Engineering Tube Material Co.,Ltd.   All rights reserved  桂ICP备14003438号-1  300.cn 
        Address: No. 17 of Liye road, emerging industrial park, Liuzhou city   Tel:0772-3269187-8101  Fax:0772-3269048
        error