钢筋混凝土氯离子腐蚀机理与防护措施

Chloride corrosion mechanism of reinforced concrete and protective measures

钢筋锈蚀是影响钢筋混凝土结构耐久性的最主要因素,应当采取积极有效的防护措施改善混凝土中的钢筋锈蚀问题。混凝土中引起钢筋锈蚀的氯离子主要源于外渗和内掺两种方式,各有不同的腐蚀机理。本文分析了钢筋混凝土的腐蚀原因,并提出相应的防护措施,保证混凝土结构的服役寿命。

Steel corrosion is the most important factor that affect the durability of reinforced concrete structures,we should take positive and effective protective measures to improve the problem of corrosion of reinforced concrete.Steel corrosion in concrete caused by chloride ions mainly due to leakage and internal-doped in two ways,each with different corrosion mechanism.This paper analyzes the nature of the reasons for corrosion of reinforced concrete and make the appropriate protective measures to ensure that the service life of concrete structures.