Durability and corrosion inhibition strategies of aluminosulfonate cement in seawater
海水环境下硫铝酸盐水泥耐久性及腐蚀抑制策略

摘要

海水环境下硫铝酸盐水泥因其优异的抗硫酸盐侵蚀能力在海洋工程中得到了广泛应用。长期暴露于海水中会导致硫铝酸盐水泥的耐久性下降，主要表现为水泥基材料的腐蚀和结构破坏。本文探讨了影响硫铝酸盐水泥耐久性的因素，如海水中氯离子、硫酸盐及其他化学成分的作用，并分析了腐蚀过程的机制。基于对这些影响因素的研究，提出了几种腐蚀抑制策略，包括改良水泥配比、外加防腐剂以及表面处理技术等，旨在提高硫铝酸盐水泥在海水环境中的长期使用性能和耐久性。

Abstract

Sulfate-aluminate cement has been extensively utilized in marine engineering due to its exceptional resistance to sulfate corrosion. However, prolonged exposure to seawater leads to reduced durability of this cement, primarily manifested as corrosion of cement matrix materials and structural failure. This study investigates factors affecting the durability of sulfate-aluminate cement, including chloride ions, sulfates, and other chemical components in seawater, while analyzing the mechanisms of corrosion processes. Based on these findings, several corrosion inhibition strategies are proposed, such as optimizing cement mix proportions, applying external corrosion inhibitors, and implementing surface treatment technologies. These measures aim to enhance the long-term performance and durability of sulfate-aluminate cement in marine environments.