Abstract:
Failures of pipe piles caused by corrosion of reinforcing bars due to chloride salt erosion are quite common in coastal engineering structures. The significant threat that chloride salts pose to the durability of reinforced concrete structures has led to the adoption of admixtures that resist corrosion as an important technical measure to inhibit corrosion of reinforcing bars and extend the service life of the structures. However, the introduction of corrosion inhibitors may have complex effects on the key properties of concrete, such as mechanical properties and resistance to chloride ion penetration, while the systematic research on the comprehensive performance of organic corrosion inhibitors on pipe pile concrete is still insufficient at present. Therefore, this paper selected two typical organic corrosion inhibitors and conducted in-depth comparative studies on the influence of different dosages of the inhibitors on the working performance, mechanical properties, and chloride ion resistance of pipe pile concrete. Based on this, the short-term corrosion inhibitory efficacy of the two inhibitors in the concrete matrix of pipe piles was preliminarily evaluated using the weight loss method of reinforcing bars. The research results have certain reference significance for analyzing the influence patterns and mechanisms of organic corrosion inhibitors on the performance of pipe pile concrete and the selection of corrosion inhibitors in actual engineering.