Corrosion behavior of steel reinforcement embedded in cement mortar with surface treatment

Release time:2024-08-09  Hits:

• Affiliation of Author(s):材料科学与工程学院
• Journal:硅酸盐学报
• Key Words:中文关键字：钢筋腐蚀；表层处理；高吸水性树脂；氯离子渗透，英文关键字：reinforcing steel corrosion; surface treatment; su
• Abstract:The surface of cement mortar was treated with an impregnating agent named alkyl-alkoxyl silane (AAS) and a super-absorbent resin (SAR) synthesized in situ, respectively. The corrosion risk and current density of steel reinforcement in the treated cement mortar immersed in 3.5% sodium chloride solution were evaluated by corrosion potential monitoring and linear polarization resistance (LPR) techniques. The results show that the water-repellent layer of the AAS and the swelling hydrogel of the SAR as a protective layer can improve the resistance to the chloride permeability of the cement mortar; the corrosion potential of the treated specimens is higher and the corrosion current density is lower, compared to that of the untreated specimens. The AAS and the SAR synthesized in situ as surface treatment materials can retard the corrosion behavior of reinforcing steel in cement mortar.
• Note:宋学锋
• First Author:hetingshu,songxuefeng
• Indexed by:Journal paper
• Volume:卷：37
• Issue:期：4
• Page Number:页：637-641
• Translation or Not:no
• Date of Publication:2009-04-01