| 摘要: |
| 为研究憎水涂层混凝土与冰之间的附着强度,开展4组憎水涂层混凝土和1组无涂抹混凝土的冰附着强度对比试验.另外,以黑龙江省红旗泡水库为例,分析了寒区水库憎水涂层混凝土护坡的应用性能.结果表明：冰与材料之间的附着强度随着材料表面粗糙度的增加而增大；混凝土涂抹憎水材料可降低冰附着强度；4种憎水材料涂层中,冰附着强度降低效果最好的为防水漆,其次为聚氨酯防水沥青.对于10a重现期最大冰层厚度为122m的冰层,当其升温幅度达到362℃时,冰层可脱离表面粗糙度小于04μm的防水油漆涂层混凝土板,且向上滑动. |
| 关键词: 冰 憎水材料 混凝土 附着强度 粗糙度 |
| DOI：103969/j.issn.1007 9629202006013 |
| 分类号: |
| 基金项目:“十三五”国家重点研发计划(2018YFC0407304，2018YFC0407301，2018YFC0407303)；国家自然科学基金资助项目（41876213） |
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| Experimental Study on Ice Adhesion Strength on HydrophobicCoated Concrete and Analysis of Application Performance |
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HAN Hongwei, ZHANG Shuai, WANG Enliang, SONG Chunshan, ZHANG Haodong
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School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
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| Abstract: |
| In order to study the ice adhesion strength on concrete that coated with hydrophobic materials, the ice adhesion strength tests of four different hydrophobic coated concretes and uncoated control group were carried out. In addition, the application performance of hydrophobic coated concrete slope protection for reservoirs in cold regions was studied in which Hongqipao Reservoir in Heilongjiang Province was taken as an example. The results show that the ice adhesion strength is increased with the increasing material roughness; hydrophobic materials can reduce the ice adhesion strength, the water repellent paint coating have the best effect on reducing the ice adhesion strength, and followed by polyurethane waterproof asphalt. Under the conditions of the maximum ice thickness of 122m in 10 a recurrence period, the ice cover can slip upward from the concrete slab which coated with waterproof paint and roughness less than 04μm when the temperature of ice cover increased 362℃. |
| Key words: ice hydrophobic material concrete adhesion strength roughness |
