SSAW Pipe Supplier-GNEE
Kev tsim kho cov txheej txheem ntawm cov txheej txheem tiv thaiv corrosion nyob rau hauv kauv yeeb nkab
Kev tsim kho ntawm cov cement mortar ntaub feem ntau yuav tsum tau nqa tawm tom qab muab kauv cov kav dej, qhov kev ntsuas siab dhau lawm, thiab cov av npog tau raug compacted raws li kev npaj yuav tsum tau ua. Thaum lub sij hawm tsim cov ntaub, cov kav dej yuav tsum nyob rau hauv qhov chaw ruaj khov. Yog hais tias cov ntaub los tiv thaiv corrosion txheej ua ntej thiab tom qab ntawd cov yeeb nkab tau qis dua, cov txheej txheem tiv thaiv corrosion yuav raug puas vim yog cov phab ntsa nyias thiab tsis tshua muaj zog ntawm cov yeeb nkab steel, uas yuav ua rau deformation loj thaum lub sij hawm nqa, kev thauj mus los, thiab rov qab los. rau av thaum lub sij hawm tsim kho.
Ua ntej siv cov ntaub, cov phab ntsa hauv cov yeeb nkab yuav tsum tau muab ntxuav kom tshem tawm cov xoob oxide nplai, ntab xeb, av, roj, vuam slag thiab lwm yam txuas; lub convexity ntawm lub puab phab ntsa ntawm cov yeeb nkab steel yuav tsum tsis txhob ntau tshaj 1/3 ntawm lub thickness ntawm cov txheej txheem anti-corrosion; Qhov siab tshaj plaws thickness ntawm cov yeeb nkab Vertical deformation yuav tsum tsis txhob ntau tshaj li kev npaj cov kev cai thiab yuav tsum tsis txhob ntau tshaj 2% ntawm lub puab txoj kab uas hla ntawm cov yeeb nkab.
Kev tsim kho ntawm cov txheej txheem tiv thaiv corrosion hauv cov kav dej kauv
Cov txheej tiv thaiv corrosion nyob rau hauv cov cement mortar tuaj yeem tsim los ntawm cov tshuab txau, phau ntawv troweling, rub lossis centrifugal prefabrication. Yog tias tsim nyog siv cov txheej txheem precast los ua cov txheej txheem los tiv thaiv cov txheej txheem sab hauv, kev tiv thaiv kev tiv thaiv yuav tsum tau coj los tiv thaiv cov txheej txheem thaum lub sijhawm thauj mus los, kev teeb tsa thiab rov qab ua dua.
Thaum lub sij hawm tsim kho, cement mortar yog thawj sib tov. Qhov loj piv ntawm cement rau xuab zeb yog 1: (1-2). Lub slump ntawm cement mortar yog 60-80mm. Lub zog compressive ntawm cement mortar yuav tsum tsis pub tsawg tshaj 30MPa.
Cov txheej txheem los tiv thaiv corrosion sab hauv cov cugas txau txoj kev muaj txoj kev du, tuab tuab thiab tuab tuab thiab ua kom zoo.
Tsis muaj teeb meem dab tsi ntawm kev tsim kho yog saws, cov txheej txheem txij nkawm yog qhov txuas tseem ceeb los xyuas kom meej tias cov txheej txheem tiv thaiv corrosion hauv cov cement mortar tsis tawg lossis hollow. Yog li ntawd, tom qab cov txheej txheem tiv thaiv corrosion nyob rau hauv cov cement mortar yog tsim, lub raj xa dej yuav tsum raug kaw tam sim ntawd kom tsis txhob muaj cua convection; Kev saib xyuas cov dej noo yuav tsum tau ua tom qab kev teeb tsa zaum kawg. Feem ntau, lub sijhawm saib xyuas ntawm Portland cement yuav tsum tsis pub tsawg tshaj 7 hnub, thiab slag Portland cement yuav tsum tsis pub tsawg tshaj 14 hnub; nws yuav tsum tsis tu ncua kaw thiab khaws cia noo ua ntej ntws dej.
Kev tsim kho zoo ntawm cov txheej txheem tiv thaiv corrosion nyob rau hauv kauv yeeb nkab
Qhov zoo ntawm cov txheej tiv thaiv corrosion hauv cov cement mortar yuav tsum ua raws li cov cai hauv qab no.
① Qhov dav ntawm qhov tawg yuav tsum tsis txhob siab tshaj {{0}}.8mm, thiab qhov ntev ntawm cov kav dej yuav tsum tsis txhob siab tshaj qhov ncig ntawm cov kav dej, thiab yuav tsum tsis txhob siab tshaj 2.0m.
② Qhov tso cai sib txawv ntawm cov tuab ntawm cov txheej tiv thaiv corrosion thiab qhov tob ntawm qhov tsis xws luag xws li pitting thiab hollows yuav tsum ua raws li cov kev cai, thiab qhov chaw tsis zoo yuav tsum tsis txhob loj dua 5cm2 ntawm txhua qhov chaw.
③ Qhov yuav tsum tau ua kom tiaj tus yog siv 300mm tus kav ntev tiv thaiv cov yeeb nkab phab ntsa raws li qhov ntev ntawm cov yeeb nkab. Qhov sib txawv ntawm qhov saum npoo ntawm txheej tiv thaiv corrosion thiab tus kav yuav tsum tsawg dua 2 hli.
④ Lub hollow cheeb tsam yuav tsum tsis pub tshaj 2 qhov chaw ntawm 1m2, thiab txhua qhov chaw yuav tsum tsis txhob loj tshaj 100cm2.
