水力发电2025，Vol.51Issue(4)：31-38,110,9.
水工混凝土冰拔冻融劣化机理及防护技术研究进展
Research Progress on Deterioration Mechanism and Protection Technology of Ice Pull-out and Freeze-Thaw of Hydraulic Concrete
摘要
Abstract
Due to the special environment such as large temperature difference and water environment enrichment,and coupled with the defects of the pore structure of concrete itself,the ice pull-out and freeze-thaw deterioration of water conservancy project serving in high-cold and high-altitude areas is serious,and the phenomenon of aggregate shedding,cracking and steel bar exposure often occurs,which seriously affects the service durability of hydraulic concrete in cold regions.Therefore,based on the current situation of ice pull-out and freeze-thaw deterioration of hydraulic concrete in extremely low temperature climate environment,this paper explores the causes and mechanism of deterioration of hydraulic concrete and summarizes the more mature protection technologies applied in recent years.Physical anti-icing technology is more significant for ice pull-out deterioration protection.The chemical coating material protection technology can effectively protect ice pull and freeze-thaw deterioration at the same time,and completely block the intrusion of supercooled water molecules into the internal structure of concrete.According to the actual situation of ice pull-out and freeze-thaw deterioration of concrete in severe cold regions,the combined application of physical anti-icing and chemical coating material protection technology will be the main trend to improve the application of ice pull-out and freeze-thaw protection technology of hydraulic concrete in cold regions in the future.关键词
水工混凝土/冰拔冻融劣化/物理防冰技术/化学涂层材料防护技术Key words
hydraulic concrete/ice pull-out and freeze-thaw deterioration/physical anti-icing technology/chemical coating material protection technology分类
建筑与水利引用本文复制引用
吴燕,张达..水工混凝土冰拔冻融劣化机理及防护技术研究进展[J].水力发电,2025,51(4):31-38,110,9.基金项目
国家自然科学基金资助项目(U2040222,51609021) （U2040222,51609021）
兵团重点领域科技攻关计划项目(2020AB010) （2020AB010）
中央级公益性科研院所基本科研业务费项目(CKSF2023317/CL) （CKSF2023317/CL）
湖北省自然科学基金项目(2022CFD026) （2022CFD026）
