中文摘要：

淡水壳菜对混凝土具有一定的侵蚀性,涂料防附是一种相对可行、高效的防治方法,量化淡水壳菜对混凝土的侵蚀性以及找到最优的防附涂料对以广蓄工程为代表的水利工程防治生物污损具有重要的现实意义。该文利用9个月的自然附着试验研究了淡水壳菜对混凝土侵蚀的影响以及市场上15种商用混凝土防附涂料（聚脲、硅烷、环氧树脂等）的防污效果,分析不同涂层上的附着密度和物理力学性能指标来评价涂料的防附着性和抗侵蚀性。结果表明：淡水壳菜自然附着9个月后,混凝土抗压强度降低了21%,混凝土孔隙率和平均孔径分别增加了29.3%和31.5%,混凝土碳化深度增加了29.7%。聚脲2、环氧树脂2和硅烷浸渍的防附着性最优;聚脲2、环氧树脂2和改性弹性环氧树脂的抗侵蚀性最优;综合推荐聚脲2和环氧树脂2作为最优的防附涂料。

英文摘要：

Golden mussel is corrosive to concrete and anti-fouling coating is a relatively feasible and efficient method for control of its corrosion. Quantifying the corrosion and finding optimal anti-fouling coating materials are of great significance to the control of bio-fouling on hydraulic structures such as Guangdong pumped-storage plants. In this study, we have conducted a natural attachment experiment of nine months long to study the influence of golden mussel corrosion and the performances of commercially available coatings of 15 types： polyurea, silane, epoxy resin, etc. The capabilities of anti-fouling and anticorrosion were evaluated using measurements of attachment density and physical-mechanical properties. The results show that after nine months of golden mussel attachment, the compressive strength of concrete was reduced by 21%, the porosity and average pore diameter of concrete increased by 29.3% and 31.5% respectively, and carbonation depth of concrete increased by 29.7%. Polyurea 2, epoxy resin 2, and silane impregnation showed the best in anti-fouling; Polyurea 2, epoxy resin 2, and modified elastic epoxy resin showed the best in anti-corrosion. Thus, polyurea 2 and epoxy resin 2 are recommended as the optimal anti-fouling coating materials.