Comparative Studies on the Anti-Corrosive Action of Waterproofing Agent and Plant Extract to Steel Rebar

Madan Somai, Ajaya Giri, Akash Roka,Jagadeesh Bhattarai

MACROMOLECULAR SYMPOSIA(2023)

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摘要
Reinforcement of steel rebar in concrete infrastructure practices for a long time, mostly to improve tensile strength as well their service time. However, shortcomings related to damage of reinforced concrete (RfC) infrastructures becomes the business of corrosion researchers over the past few years, primarily from a safety and economic perspective. In general, the steel-reinforced concrete (SRC) infrastructures are porous, and thence water as well different atmospheric pollutant gases penetrate it, causing the corrosion damages of the rebar, which shorten the prolonged existence of the RfC structures. The research aims to differentiate the efficacy and prosperity of waterproofing chemicals and methanol extract of Mangifera indica plant leaves for controlling the RfC susceptibility using a half-cell corrosion potential measurement method following ASTM standard. The methanolic extract of M. indica leaves and waterproofing agents show high anti-corrosion characteristics and can prescribe for the protection of the RfC infrastructures. The corrosion controlling performance level of 1000 and 2000 ppm M. indica extracts on the steel rebars in concrete has higher than the additions of alike concentration of both the water-repellents depend on open-circuit corrosion potential (CoP) shifting values to a noble direction.
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关键词
additive, degradation, FT-IR, reinforcement, steel
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