Degradation mechanisms of concrete subjected to combined environmental and mechanical actions: a review and perspective

Ye Hailong; Jin Nanguo

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Degradation mechanisms of concrete subjected to combined environmental and mechanical actions: a review and perspective

机译：结合环境和机械作用的混凝土降解机理：回顾与展望

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In-service reinforced concrete structures are simultaneously subjected to a combination of multi-deterioration environmental actions and mechanical loads. The combination of two or more deteriorative actions in environments can potentially accelerate the degradation and aging of concrete materials and structures. This paper reviews the coupling and synergistic mechanisms among various deteriorative driving forces (e.g. chloride salts- and carbonation-induced reinforcement corrosion, cyclic freeze-thaw action, alkali-silica reaction, and sulfate attack). In addition, the effects of mechanical loads on detrimental environmental factors are discussed, focusing on the transport properties and damage evolution in concrete. Recommendations for advancing current testing methods and predictive modeling on assessing the long-term durability of concrete with consideration of the coupling effects are provided.

机译：在役的钢筋混凝土结构同时要承受多种恶化的环境作用和机械载荷。在环境中两个或多个恶化行为的组合可能会加速混凝土材料和结构的退化和老化。本文综述了各种恶化驱动力之间的耦合和协同机制（例如，氯化物盐和碳化引起的增强腐蚀，循环冻融作用，碱-二氧化硅反应和硫酸盐侵蚀）。此外，还讨论了机械载荷对有害环境因素的影响，重点是混凝土的运输性能和损伤演化。提供了有关在考虑耦合效应的情况下评估混凝土长期耐久性的最新测试方法和预测模型的建议。

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《Computers & Concrete》 |2019年第2期|107-119|共13页
作者
Ye Hailong; Jin Nanguo;
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作者单位

Univ Hong Kong, Dept Civil Engn, Pokfulam, Hong Kong, Peoples R China;

Zhejiang Univ, Dept Civil & Architectural Engn, Hangzhou, Zhejiang, Peoples R China;

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正文语种 eng
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关键词
concrete; multi-deterioration mechanisms; environmental factors; mechanical loading; durability design;

机译：混凝土;多次劣化机理;环境因素;机械载荷;耐久性能设计;

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1. Degradation mechanisms of concrete subjected to combined environmental and mechanical actions: a review and perspective [J] . Ye Hailong, Jin Nanguo Computers & Concrete . 2019,第2期

机译：结合环境和机械诉讼的具体劣化机制：审查与观点
2. Degradation mechanisms of cast-in-situ concrete subjected to internal-external combined sulfate attack [J] . Zhao Gaowen, Li Jingpei, Shi Mei, Construction and Building Materials . 2020,第Jul10期

机译：内外硫酸盐攻击的原位混凝土的降解机制
3. Effect of Temperature on Damage Evolution of Cr25Ni35Nb Alloy Subjected to Combined Mechanical and Environmental Degradation [J] . Limin Shen, Huansheng Liu, Jianming Gong, High temperature materials and processes . 2015,第4期

机译：温度对Cr25Ni35Nb合金力学和环境综合降解损伤演变的影响
4. Damage mechanics of concrete structures subjected to mechanical and environmental actions [C] . Gilles Pijaudier-Cabot, Bruno Gerard, Laurent Molez EURO-C conference on computational modelling of concrete structures . 1998

机译：受机械和环境作用的混凝土结构的损伤力学
5. Effect of pellet-cladding interaction (PCI) and degradation mechanisms on spent nuclear fuel rod mechanical performance during transportation. [D] . Poudyal, Rishav. 2016

机译：颗粒-包层相互作用（PCI）和降解机理对运输过程中乏核燃料棒机械性能的影响。
6. Degradation Mechanism of Concrete Subjected to External Sulfate Attack: Comparison of Different Curing Conditions [O] . Gaowen Zhao, Mei Shi, Mengzhen Guo, 2020

机译：外部硫酸盐攻击的混凝土的降解机制：不同固化条件的比较
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Degradation mechanisms of concrete subjected to combined environmental and mechanical actions: a review and perspective

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