摘要
钢筋的腐蚀 ,尤其当有氯离子存在时 ,是混凝土结构腐蚀破坏的主要原因。在防止钢筋腐蚀的各种措施中 ,采用涂层既简便又有效。熔融结合环氧粉末涂层的综合防护性能优良 ,已经大量应用于钢质管道和钢管桩 ,也很适合于钢筋的保护。钢筋表面涂装环氧涂层可用静电喷涂方法 ,工艺基本成熟。环氧涂层钢筋的研究开发在美国始于 2 0世纪的 70年代 ,主要应用于撒布化冰盐的路桥和各类海工结构。我国在 1997年就制订了环氧树脂涂层钢筋的行业标准。目前 ,国内已能生产环氧涂层钢筋 ,并开始实际应用。随着我国国民经济的发展 ,越来越多的工程要求使用环氧涂层钢筋 ,市场前景肯定十分广阔。
Among various corrosion control methods, proper barrier coating is an effective measure for prevention of steel rebar from corrosion due to chloride, which is identified as the primary cause for premature deterioration of reinforced concrete structure. Fusion bonded epoxy coating as a member of high performance coating family has been widely used for corrosion protection of steel pipeline and pipe pile. The coating can also provide protection for steel rebar and lengthen the durability of various concrete infrastructures. It has been put into practical application for numerous projects in China. The marketing prospect of epoxy-coated rebar seems promising and encouraging.
出处
《腐蚀与防护》
CAS
2004年第3期105-108,共4页
Corrosion & Protection
关键词
钢筋混凝土腐蚀
熔结环氧粉末涂层
环氧涂层钢筋
Corrosion of reinforcing bar
Fusion bonded epoxy powder coating
Epoxy-coated rebar
