Long-term compressive stress is exerted in the prestressing concrete structural components to offset the tensile stress brought about by long-term service load in the components and to prevent the concrete cracking. The main construction procedure of post-tensioned concrete structure is: making hole, concrete pouring, concrete curing, tendons election, tendons stressing and anchor, grouting and sealing. The provisional and permanent protection measures are all required in the acceptance recommendations of post-tension prestressing system(FIP93), but structural safety is still threatened during actual construction because the bare strand generally used should be rusty if the mortar grouted in the pipe is not compacted.

　　The continuous advancement of the prestressing technology promotes the prestressing tendon develop to the direction of high-strength, low relaxation, corrosion resistance. The FECS has become a representative of high-strength strand of anti-corrosion after a long research and engineering practice. The grit-impregnated epoxy-coated strand can bond fully with mortar grouted in the pipe relied on the grit embedded in the epoxy coating and can ensure its anti-corrosion performance at the same time. It would not be rusty even if the mortar grouted is not compacted, so as to effectively guarantee the structure’s safety.

　　The unique FASTEN post-tension prestressing system is set up with the girt-impregnated epoxy-coated strand and its corresponding anchor system.