The application of prestressed concrete steel strand (or PC steel strand) in the construction industry has been fully popularized. The main reason is that it can achieve better quality standards in the actual application process, exert better stability and stability; and it has extremely strong impact resistance, which can meet different environments requirements. But how much do you know about PC steel strands?
PC steel strand, or prestressed concrete steel steel strand, is a twisted steel cable composed of 2, 3, 7 or 19 high strength steel wires and is stress-relieved (stabilized) for prestressed concrete or similar purposes.
Using high-carbon steel wire rod, after surface treatment it is cold drawn into steel wire, and then the steel strand structure will be a number of steel wires steel stranded into shares. Next the elimination of stress by way of a stabilization process. In order to extend durability, the wire can have metal or non-metallic coatings, such as galvanized, or epoxy resin coating. In order to increase the bond strength with the concrete, the surface can have nicks and so on. The prestressed steel strands of the mold are twisted to form a mold compression process, the structure is more compact, and the surface layer is more suitable for anchoring.
Prestressed concrete steel strands entered the practical stage in the 1950s. However, the basic principle of prestressing is not only applicable to steel steel strands, but also applied in many aspects in ancient times. The main purpose of PC steel strands are to overcome the disadvantage of low tensile strength of concrete and make full use of high strength carbon steel.
PC Steel Strand Detail Image
1. Due to the effective use of PC steel strand and coagulant, the prestressed concrete steel strand can be made into a slender load-bearing structure with a larger span and a smaller dead weight than ordinary reinforced concrete;
2. PC steel strands can improve the usability of the concrete structure, effectively prevent the cracking of the concrete, or at least limit the width of the cracks to a harmless degree, and improve the durability of the structure;
3. Under the action of load, even if there is a little prestressing, the deformation of the structure can be controlled in a very small state;
4. As long as the strain of the steel bar is less than 0.01%, the cracks caused by overloading can be closed again after unloading.
1. PC steel strands are mainly used for the reinforcement of prestressed concrete structures, such as long-span railway and highway bridges, main bridges, silos, buildings, dams, floors, foundations, large concrete containers, atomic reactor buildings, stadiums, and airports Hangers, prefabricated segments, crane beams, anchors and multi-storey industrial buildings, etc.
2. PC steel strands are also used in the construction of highways, telephone poles and water towers in civil buildings, as well as marine energy transportation, house construction, water conservancy projects, and rock and soil anchoring components to increase tension.
Huayongxin is a leading professional manufacturer and supplier of PC Steel Wire and PC Steel steel strand. If you are in need of it, please contact us.
