Mafi kyawun Karfe Prestressed Engineering Prestressed Concrete Steel Strand

Ƙarfe da aka riga aka ƙaddara shi ne kebul na ƙarfe na ƙarfe wanda ya ƙunshi manyan wayoyi na ƙarfe 2, 3, 7 ko 19, kuma an sha maganin rage damuwa (maganin daidaitawa), wanda ya dace da simintin da aka riga aka rigaya ko makamancin haka.

Babban halaye na madaurin ƙarfe da aka riga aka ɗora shine babban ƙarfi, kyakkyawan aikin annashuwa, da ingantacciyar madaidaiciya lokacin buɗewa. Ƙarfin ƙarfi na gama gari shine 1860 MPa, kuma akwai ƙarfin ƙarfi kamar 1720, 1770, 1960, 2000, da 2100 MPa. Ƙarfin wannan ƙarfe kuma yana da girma sosai.

Babban sandar igiyar karfen da aka yi amfani da ita ta hanyar sanyi ana zana shi cikin wayar karfe bayan an gama gyaran saman, sannan a karkatar da wasu nau'ikan wayoyi na karfe zuwa matsuguni daidai da tsarin ma'aunin karfe, sannan a samu su ta hanyar rage damuwa. Domin kara tsayin daka, waya na karfe na iya samun karfe ko plating wanda ba na karfe ba ko sutura, irin su galvanizing, murfin epoxy, da sauransu. The gyare-gyaren prestressed karfe madaurin sha wani mold matsawa tsari bayan stranding, da tsarin ne mai yawa da surface Layer ya fi dace da anchoring. Don yin igiyoyin ƙarfe maras ɗaurin gindi (ƙarfe ba tare da haɗawa ba) yi amfani da madaurin ƙarfe na yau da kullun da aka riga aka danne, an lulluɓe shi da man shafawa mai hana lalata ko paraffin, sannan a nannade shi da polyethylene mai girma (HDPE).