Zinc-rich coating as a sacrificial anode provides cathodic protection for steel bars, so it can provide protection only for the steel bars for a certain period of time, and fundamentally cannot solve the problem of steel bar corrosion in magnesium oxychloride cement concrete (MOCC). However, the organic coating protects the steel by its own shielding. Therefore, organic coated reinforced MOCC (ORMOCC) is more adaptable in western saline soil and salt lake areas. ORMOCC's durability degradation process includes four aspects, but its durability degradation model under those four factors has not been studied. Therefore, combined with the environment of western salt lakes and saline soil, the solution immersion test was performed on ORMOCC, and the durability degradation of steel bars was studied with electrochemical tests. The degradation durability of organic coatings was studied by Fourier transform infrared spectroscopy. Crack formation and the mass loss of MOCC were studied by ultrasonic and quality tests, taking the four corresponding parameters as degradation indicators. Based on the four-dimensional Copula function, the degradation model of ORMOCC under four degradation factors was established. The results showed that the four-dimensional Copula function can describe the durability degradation process of ORMOCC under the influence of the four factors well, and it reaches the damage state at approximately 12,450 days.

中文翻译：

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有机涂层增强氯氧化镁水泥混凝土的耐久性

富锌涂层作为牺牲阳极对钢筋提供阴极保护，因此只能对钢筋提供一定时间的保护，从根本上不能解决氯氧镁水泥混凝土（MOCC）钢筋锈蚀问题. 然而，有机涂层通过其自身的屏蔽来保护钢。因此，有机包覆增强MOCC（ORMOCC）更适用于西部盐渍土和盐湖地区。ORMOCC的耐久性退化过程包括四个方面，但其在这四个因素下的耐久性退化模型尚未研究。因此，结合西部盐湖和盐渍土环境，对ORMOCC进行了溶液浸泡试验，并结合电化学试验研究了钢筋的耐久性退化。通过傅里叶变换红外光谱研究了有机涂层的降解耐久性。以相应的四个参数作为降解指标，通过超声和​​质量测试研究了MOCC的裂纹形成和质量损失。基于四维Copula函数，建立了ORMOCC在四种退化因素下的退化模型。结果表明，四维Copula函数可以很好地描述四个因素影响下ORMOCC的耐久性退化过程，并在大约12450天时达到损伤状态。基于四维Copula函数，建立了ORMOCC在四种退化因素下的退化模型。结果表明，四维Copula函数可以很好地描述四个因素影响下ORMOCC的耐久性退化过程，并在大约12450天时达到损伤状态。基于四维Copula函数，建立了ORMOCC在四种退化因素下的退化模型。结果表明，四维Copula函数可以很好地描述四个因素影响下ORMOCC的耐久性退化过程，并在大约12450天时达到损伤状态。