Plain, Spiral Rib and Indented PC Strand (2 wires, 3 wires and 7 wires)
In China, Silvery Dragon mainly supplies its 7 wires plain strand to highway and high speed railway bridge markets. Since the Beijing-Tianjin inter-city passenger line began in the year of 2005, Silvery Dragon has supplied 550, 000 strands to more than 20 projects with a total length of over 6000km including Zhengzhou-Xian, Harbin-Dalian, Beijing-Shanghai, Shijiazhuang-Taiyuan, Beijing-Shijiazhuang, Shijiazhuang-Wuhan, Tianjin-Qinhuangdao, the East Ring in Hainai city and so on. We also have good supply performance in the 300-400km/h high-speed railway construction. Meanwhile, we export a lot to the big projects in foreign countries, such as Kuwait Jaber Causeway Project in Kuwait, Edmonton Ring Expressway in Canada, GLP Nagareyama III Project in Japan, Tel Aviv to Jerusalem railway in Israel and so on.
Indented and spiral rib PC strand are suitable for pre-stressed concrete engineering which requires strong bonding force and short pre-stress transfer length. It is mainly used in slope protection, geological protection and mine support. They can meet the requirements of PrEN10138, BS5896, ASTMA886, JISG3536, KSD7002, etc. Spiral Rib PC strand is a new product developed by our company. Its side wires are spiral rib wire and center wire is plain round wire with advantage of high tensile strength, good plasticity, stronger anchoring ability and better bond-ability with concrete. It is the first choice for the roadway support and slope consolidating projects.
Key parameters & reference standards
|Appearance||Nominal Dia.(mm)||Tensile Strength(MPa)||Relaxation(1000h)||Standards|
|7 wires||8.0,9.3,9.53,11.1,12.5, 12.7, 12.9, 15.2, 15.7, 17.8, 21.6||1770, 1860, 2000||Low relaxation≤2.5%||ASTMA416, BS5896, EN10138-3, AS/NZS4672, GB/T5224, KS7002, ISO6934-4, SS213620, JIS G3536, UNE36094, ABNT NBR7483, NEN3868|
|3 wires||4.8, 5.2, 5.8, 6.2, 6.5, 7.5, 7.6, 8.6, 9.1||1725, 1860，1960||ASTMA910,GB/T5224, TISG3536, EN10138-3, AS/NZS4672|