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PC strand, or prestressed concrete strand, is a high-strength steel wire used to reinforce concrete structures. It is made by cold drawing high-strength steel wire into strands, which are then heated and stretched to prestress the strand. PC strand is used in a variety of concrete construction applications including bridges, buildings, car parks, and other types of infrastructure.
One of the main benefits of using the PC strand is that it allows concrete structures to be designed with longer spans and smaller cross-sections, thus using less material and making the construction of the structure more economical.PC strand also has a high tensile strength, which means that it can withstand large amounts of stress without breaking. This makes it an ideal reinforcement material for concrete structures subjected to heavy loads, such as bridges and multi-story buildings.
In addition to its tensile strength, the PC strand has good corrosion resistance, which means it retains its strength and integrity even in harsh environments. This makes it a suitable reinforcement material for use in marine environments and highly polluted areas.
PC strand is often used in conjunction with other reinforcement materials such as rebar to provide additional strength and support to concrete structures. It is also used with prestressed concrete beams, which are prestressed using PC strands before being placed into the structure. This allows the beam to carry heavy loads without cracking or deforming.
PC strand is available in a range of sizes and strengths and is usually supplied in reels or spools for ease of handling and installation. It is commonly installed in concrete structures using one of several methods, including stressed tendons, post-tensioning, and pre-tensioning.
Overall, the PC strand is an important reinforcement material that is widely used in the construction of concrete structures. It enables designers to create more efficient and economical structures that can withstand heavy loads and maintain their integrity in harsh environments.
This article was written by a representative of HPC wire a manufacturer of PC strands.
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PC strand is widely used in prestressed concrete structure (both pre-tensioning and post tensioning). Its application is so wide that hardly any prestressed concrete structure is constructed without it. Bridges, high-rise buildings, industrial facilities, warehouses, stadiums, sport complexes, containment tanks, airports, seaports, train stations, railways, subways, monorails, tunnels, dams, reservoirs, above and underground mining operations, foundations etc. are just some of the applications where strand is used.
TMG 7-wire Low Relaxation PC Strand is renowned for its high quality and reliability. Our ability to meet numerous international standards like ASTM A416, BS , JIS G, AS/NZS .1, EN etc. has made us the preferred supplier among our competitors.
TMG PC strand goes through a series of stringent tests to meet clients&#; demand. Mechanical, Break Strength, Metallurgy, Chemical Analysis, Cross Section Magnification, Relaxation, Corrosive Environment, etc. are just some of the tests that we conduct to ensure clients&#; get nothing but the best product from us. The standard geometric properties of each coil of PC strand is also tested to guarantee our quality standard.
One area to highlight is the Relaxation Test in a temperature controlled environment. The average result of our relaxation values is about 1.5% after hours for a 70% Breaking Load. And 2.2% - 2.5% for a 80% Breaking Load. This is way above the international standards around the world.
We also conduct Bond Strength and Transmission Length tests regularly. fib (Fédération internationale du béton / International Federation for Structural Concrete) and PTI (Post-Tensioning Institute, USA) has their own version of deflected tensile test, also known as &#;one pin test&#;. The test assesses the strand for tensile strength when stressed around a pin. TMG is also committed to conduct such tests internally to prove that our strand is suitable for multi-axial stressing applications.
Stay Cable (bridge cable) strand has to endure a stringent 2 million cyclic Fatigue Test. And TMG PC strand is well positioned to ride through this rigorous test with ease.
TMG is also capable of producing galvanized strand, PE coated strand & epoxy-coated strand for various applications. The polymer grade we used is designed for
Our PC strand is packaged into a standard coil of 3 tonnes (other coil weight available as well) with protective wrapping for long shipments duration. Normally palletized and placed as eye-to-sky (possible for sys-to-side too). Additional corrosion protection can be applied on request. Test lengths may be packaged outside the strapping for easy access, or may be cut off and wrapped separately with individual pack identity labels and then shipped inside the eye of the pack. Hence clients can be assured that the PC strand they received is in good and working condition.
Being an end user ourselves in post tensioning work or ( projects, we definitely know what it takes to produce good quality PC strand to meet tomorrow&#;s engineering challenges.
The company is the world’s best PC Bar supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.