Lee Metal & Wire Co., Ltd.
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Prestressed Concrete Strand

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Description

Use
PRE-TENSION Pile& Pole, Concrete Slab, Prestressed Concrete Pipe & Tubes Concrete Railway Sleepers,
POST-TENSION Prestressed Concrete Structure, Roofing Structures, Concrete Storage Tank, Concrete Bridges or Viaducts, Concrete Anchor, Atomic Furnace

What is Low Relaxation?
L/R-PC strand is used in order to reinforce the concrete structure.
Any prestressing steel, either wire strand and embedded in concrete lose the applied stress exponential function with time.
Relaxation is indicated percentage which is degree of stress loss as P.C strand is pulled.
This rate is the most important, because it is used in the design of prestressed concrete structure.
However, stress loss can be reduced due to relaxation.
An additional advantage can be anticipated when L/R-PC strand is sunjected to the stabilizing by high frequency heating during the tension process.

Low Relaxation Prestressed Concrete


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