泄水建筑物中聚脲防护材料抗蚀性能的试验分析  

Experimental Analysis of Anti-corrosion Performance of Polyurea Protective Materials in Release Structure

作　　者：史国庆[1] 张同钰 Shi Guoqing;Zhang Tongyu(Xianyang Vocational Technical College,Xianyang 712000,China)

机构地区：[1]咸阳职业技术学院,咸阳712000

出　　处：《粘接》2021年第7期120-123,共4页Adhesion

摘　　要：为保证建筑物正常运行,避免由于质量问题引发的灾难性事故,泄水建筑物用材必须保证抗冲磨与抗空蚀性能。对此,研究351纯聚脲与高硬度纯聚脲2种抗冲磨聚脲防护材料,采用高速水砂法与水下棱石法对含悬移质与推移质水流的冲磨条件进行模拟,分析聚脲防护材料的抗冲磨性能,与此同时,研究材料在强空蚀作用下的抗空蚀性能。结果显示,喷涂聚脲防护材料可以显著提高泄水建筑物工程用混凝土的抗冲磨与抗空蚀性能,且351喷涂纯聚脲防护材料的抗冲磨与抗空蚀性能优于高硬度喷涂纯聚脲防护材料。In order to ensure construction’s normal operation,and avoid disastrous accident due to quality problem,the materials that used by release structure must ensure wear-resisting and cavitation erosion resistances.So,two kinds of anti-abrasion polyurea protective materials of 351 pure polyurea and high strength pure polyurea were studied,and uses high speed water sand method and underwater ribstone method to simulate rushed grinding conditions that conclude suspended load and bed load.Analyze polyurea protective material’s wear-resisting performance.At the same time,it also researches its cavitation resistance under the role of strong cavitation erosion.Results show that spraying polyurea protective material can significantly improve the anti-abrasion and cavitation erosion performance of concrete used in spillway building engineering,,and 351 spraying pure polyurea protective material has better anti-abrasion and anti-cavitation performance than high-hardness spraying pure polyurea protective material.

关 键 词：泄水建筑物 351纯聚脲 高硬度纯聚脲 抗冲磨性能 抗空蚀性能 

分 类 号：TB33[一般工业技术—材料科学与工程] TU502[建筑科学—建筑技术科学]