Qhov corrosion ntawm zinc coatings ntawm lub tsev muaj feem xyuam rau cov khoom ntawm lub tsev cov ntaub ntawv. Piv txwv li, cement thiab txiv qaub mortar muaj alkalinity siab, uas tuaj yeem ua rau corrosive heev rau zinc txheej. Tsis tas li ntawd, thaum lub sij hawm ziab, dej vapor condenses rau saum npoo ntawm zinc txheej, ntxiab oxygen thaum tiv thaiv kev sib cuag ntawm carbon dioxide. Qhov no ua rau tshwj xeeb yog khaus corrosion. Yog hais tias cov cement muaj magnesium chloride, cov tshuaj chloride tuaj yeem ua rau cov yeeb yaj kiab tiv thaiv, ua kom lub zog ntawm cov zinc txheej. Asphalt siv rau lub ru tsev tuaj yeem tsim cov organic acids nyob rau hauv tshav ntuj, uas, thaum nyob rau hauv kev sib cuag nrog zinc txheej los ntawm dej nag, exerts ib tug muaj zog corrosive nyhuv.
Ntawm cov kav dej galvanized steel siv rau kev thauj cov dej sov thiab chav dej, feem ntau yog ib txheej ntawm cov khoom siv thermal rwb thaiv tsev. Yog tias cov dej noo hauv cov khoom no tsis yooj yim evaporated, nws tuaj yeem ua rau corrosion. Piv txwv li, thaum slag wool yog siv los ua cov khoom siv rwb thaiv tsev, nws tsis tsuas yog muaj qee qhov dej noo tab sis kuj sulfides, ua rau corrosion ntawm zinc txheej txawm sai dua.
