硫酸盐侵蚀,混凝土,干湿循环,长期浸泡,侵蚀机理,景电灌区水工混凝土建筑物硫酸盐侵蚀破坏机理探讨
景电灌区水工混凝土建筑物硫酸盐侵蚀破坏机理探讨
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景电灌区水工混凝土建筑物硫酸盐侵蚀破坏机理探讨

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  • 硫酸盐侵蚀,混凝土,干湿循环,长期浸泡,侵蚀机理,
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    经过对甘肃景电工程混凝土建筑物受高矿化度地下水侵蚀破坏现场调研,浅析浅析了硫酸盐侵蚀破坏混凝土的影响因素,研究了硫酸盐侵蚀破坏的机理,强调硫酸盐的侵蚀机理浅析浅析要用于抗硫酸盐侵蚀破坏研究,以期对提高水工建筑物耐久性有所帮助。硫酸盐侵蚀是混凝土化学侵蚀中最广泛和最普通的形式,一直是结构耐久性研究中的重要组成部分,尽管到目前为止所提出的抗硫酸盐侵蚀试验策略有许多种,但是每种策略都具有一定的局限性,没有一种策略能快速而真实地揭示混凝土硫酸盐侵蚀的机理,尤其是用于长期预报混凝土处于硫酸盐侵蚀环境中的各种性能。因此,对抗硫酸盐侵蚀试验策略进行全面系统的研究就显得尤为重要。本文通过浅析浅析混凝土硫酸盐侵蚀反应类型,阐明了混凝土硫酸盐侵蚀机理;通过对混凝土组分、混凝土内部孔隙类型及其分布、侵蚀溶液及混凝土所处的工作环境的研究,探讨了影响混凝土硫酸盐侵蚀的因素,并在此基础上从降低混凝土组分与硫酸盐反应的活性和改善混凝土的孔隙结构等方面提出了提高混凝土抗硫酸侵蚀能力的思路和途径。

    【Abstract】WwW.zIdiR.coM By researching the concrete building of JingDian Great High Lifts Irrigation Project (GanSu province) in the high salinity of groundwater environments, we analyze the factors of sulfate attack of concrete, study the mechani** of sulfate attack of hydraulic concrete building, and we think the results should be put into true activities so that we can improve the using of hydraulic concrete building.Sulfate attack of concrete to chemical attack is the most widespread and most common form, has been the durability of the structure of an important part, although so far raised sulphate resistance test methods there are many types, but each method have some limitations, there is no one way to quickly reveal the true mechani** of sulfate attack of concrete, especially for long-term prediction of concrete sulfate attack in a variety of performance environments. Therefore, the test method against sulfate attack to conduct a comprehensive study of the system it is particularly important.GB in the current test method is mainly used for cement cementing material itself sulfate resistance should be evaluated with a cement mortar specimen tested manner. As the concrete sulfate resistance not only with its cementitious materials used in cement, but also compact and so its a great relationship, so researchers in different concrete sulfate resistance study, in accordance with the purpose of their research the different tests using different methods.

    【关键词】 硫酸盐侵蚀; 混凝土; 干湿循环; 长期浸泡; 侵蚀机理;
    【Key words】 Sulfate attack; Concrete; Wet and dry cycle; Long-term immersion; Erosion mechani**;
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      硫酸盐侵蚀 混凝土 干湿循环 长期浸泡 侵蚀机理
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