ʻO ke kaula kila PC
01
Epoxy Coated PC Steel Strand
Hoʻolauna Huahana
Hoʻokō ka hana o ka mono-filament sprayed epoxy steel strand i nā koi o GB/T25823-2010 "Mono-filament Coated Epoxy Coated Prestressed Steel Strand".
Hoʻokō ka hana o ka epoxy steel strand i nā koi o GB / T21073-2007 "Epoxy Coated Seven Wire Prestressed Steel Strand" a me JT / T 737-2009 "Filled Epoxy Coated Steel Strand".
Hana ʻia ka ʻaila anti-corrosion: Ma ka laina me JG 3007, ua hana ʻia ia me ka kopa kiʻekiʻe lipid acid-proof carp soap e mānoanoa ai i ka ʻaila mineral hoʻomaʻemaʻe hohonu, hoʻohui i nā antioxidants, anti-rust agents, anti-corrosion a me nā mea hoʻohui ʻē aʻe. adhesion, pale wai, pale pale a me ka anti-corrosion o anti-corrosion grease.
I kēia manawa, aia ʻelua mau kūlana honua no nā kaula kila i uhi ʻia epoxy, ʻo ia hoʻi ʻo ASTM A 882/A 882M-02a a me IS0 14655:1999 (E). No nā kaula kila epoxy-coated, ʻelua ʻano huahana i kuhikuhi ʻia: epoxy-coated filled strands a me epoxy-coated coated steel strands. Ma ka mana 2002 o ka maʻamau ASTM, he mea nui e kuhikuhi i nā kaula kila i hoʻopiha ʻia i ka epoxy, a ʻaʻole ʻōlelo ʻia nā kaula kila epoxy-coated; Hoʻokumu ʻia ʻo ISO 14655:1999 (E) ma ka ASTM A 882/A882M-96 a no laila mālama ʻia nā lula no nā huahana strand-coated epoxy, ʻo ia hoʻi no nā huahana ʻelua.
No ka mea ʻo nā kaula kila i uhi ʻia epoxy ka huahana me ka pale ʻana i ka corrosion maikaʻi loa, aia nā kānāwai koʻikoʻi no ka uhi ʻana i ka mānoanoa a me nā pinholes ma ka ʻili ma nā kūlana ʻelua. Hōʻike ka ASTM A 882/A 882M-02a i ka mānoanoa o ka uhi ʻana o 0.38 -1.14mm no nā kaula i hoʻopiha ʻia epoxy. IS0 14655:1999 (E) ʻōlelo ʻo ka mānoanoa o ka uhi ʻana o ka epoxy i hoʻopiha ʻia i ke kaula kila he 0.40-0.90mm; ʻO ka mānoanoa o ka uhi ʻana o nā kaula epoxy-coated he 0.65 -1.15mm.
ʻO ASTM A882/A882M-02a a me IS0 14655:1999 (E) ʻōlelo ʻelua ʻaʻohe puka pine i ka lōʻihi piha o ke kaula kila i uhi ʻia epoxy. I ka manawa like, hoʻokō kā mākou huahana i nā koi no nā kūlana honua ʻelua o ASTM A882/A882M-02a a me IS0 14655:1999 (E).
Nā hiʻohiʻona huahana
ʻO nā kaula kila i uhi ʻia epoxy i hana ʻia e kā mākou hui he mau waiwai anti-corrosion maikaʻi loa,
1) Hoʻopiha piha ʻia ka ʻāpana ma waena o nā kaula kila o ke kaula kila e ka resin epoxy.
2) ʻO ka uhi epoxy resin ma ka ʻili o ke kaula kila me ka mānoanoa lawa, ʻaʻohe pinhole i ka lōʻihi holoʻokoʻa.
3) Hoʻopaʻa paʻa ʻia ka resin epoxy kūikawā me ka matrix metala o ke kaula kila, e hoʻolōʻihi like ʻia a ʻaʻole e pohā i ka wā a ma hope o ka hoʻopaʻapaʻa ʻana.
Nā noi huahana
Ma ke ʻano he ʻano hou o nā mea i hoʻopaʻa ʻia i ka anti-corrosion prestressed, epoxy coated steel strand i hoʻohana nui ʻia i nā kahua ʻenekinia he nui e like me nā kaula uwea, nā ʻāpana ʻokoʻa i hoʻopaʻa ʻia, nā kaula waho (me nā kaula nakinaki), nā kaula kūloko, geotechnical. pae moku, etc., ma ʻAmelika Hui Pū ʻIa, ʻEulopa, Iapana, Australia a me nā ʻāina a me nā ʻāina ʻē aʻe o ʻEulopa, ʻAmelika a me Asia-Pacific.
ʻO kā mākou hui 16 mau kaula i noho ʻia ma Korla Landscape Bridge he mau kaula heleuma extrusion i hana ʻia e ka ʻenehana extrusion. ʻO ka huahana hou 17.8mm epoxy i uhi ʻia i mua o ke kila kila i hana ʻia e kā mākou hui ua hoʻohana ʻia i ka papahana kila o ka hale lanahu maloʻo o Dalian Xizhong Island Heating Project, ʻo ia hoʻi ka papahana mua ma Kina e hoʻohana i ka 17.8mm epoxy coated prestressed steel strand. . ( Ke kumu hoʻopale deflection:
