Prestressed Concrete Steel Strand

  Prestressed concrete steel strand, also known as 1×7 low-relaxation prestressed concrete strand, is twisted steel cable composed of 7 high-strength steel wires, which has been through the stress relief treatment (stabilized). Steel embedded in prestressed concrete structure has been pre-stretched before load been applied on, applying a prestressing force on the concrete to offset or reduce the tensile stress generated by load, thereby enhancing the crack resistance and stiffness of the components, reducing the width of cracks, as well as using high-strength steel and concrete effectively to save steel material and reduce the weight.
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Prestressed Concrete Steel Wire

  Prestressed concrete steel wire is a kind of steel wire made of carbon steel wire material, and used in prestressed concrete structures or prestressed steel structures.
 
  Features
  High-strength, low-relaxation, supply in coil, large-length, low-consumption, spiral rib steel wire has strong bond with concrete.
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Prestressed Concrete Bar

  Prestressed concrete bar, is a kind of high-tech prestressed steel material developed in Japan during 1960s, Japanese patent granted in 1964, is of intermediate prestressed intensity level.

  Features
  With high-strength toughness, low-relaxation, strong bond with the concrete, good weldability and upsetting, material-saving (replacement of Φ20mm hot-rolled bar) and other properties. 
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Galvanized Steel Strand And Wire

  Galvanized Steel Strand is a spiral twist with certain number of galvanized steel wires, used for lifting, hanging, fastening and fixing stuffs as well as for communication cables and overhead ground wires, etc.. It is excellently anticorrosive, as a result of advanced HDG (hot dip galvanizing) technology applied.
 
  Features
  With complete tensile strength levels, not loose, neat wire placement, surface zinc coating by vertical hot-dip galvanizing, firm bond with iron-base, particularly adapted to harsh conditions, small elongation in structure, corrosion resistance, and long service life.
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Unbonded Prestressed Concrete Steel Strand

  When Prestressed concrete steel strand is coated with a layer of grease and plastic sheathing, in the engineering construction, the steel strand will be separated from the concrete and loose as it's embedded with grease and plastic sheathing, remaining an unbonded state, it's called Unbonded prestressed concrete steel strand.
  
  Features
  Made with steel wire or strand, small friction loss, no need of a secondary filling, and convenient construction.
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