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Surface Applied Corrosion Inhibitor

机译:表面应用的缓蚀剂

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摘要

Durability limitations of steel reinforced concrete are well documented. Corrosive environments (e.g. the presence of chlorides), carbonation of concrete structures, poor workmanship and other factors can cause corrosion of the reinforcing steel. Normally, reinforcing steel embedded in concrete is protected because the concrete cover acts as a barrier and the high pH value of the pore fluid assures a passive state. Both the presence of chloride ions at concentrations above a given threshold level and carbonation and put reinforcing steel into an active state and result in corrosion rates that markedly decrease the expected service live of reinforced concrete structures.
机译:钢筋混凝土的耐久性极限已得到充分证明。腐蚀性环境(例如,氯化物的存在),混凝土结构的碳化,工艺差和其他因素都可能导致钢筋腐蚀。通常,埋入混凝土中的钢筋受到保护,因为混凝土盖层起着屏障的作用,孔隙液的高pH值可确保其处于被动状态。浓度超过给定阈值水平的氯离子的存在和碳化都会使钢筋进入活性状态,并导致腐蚀速率显着降低钢筋混凝土结构的预期使用寿命。

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