Concrete Erosion in Weak Sulfate Environment
| العنوان: | Concrete Erosion in Weak Sulfate Environment |
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| المؤلفون: | Lingqiang Yang, Luling Yang |
| المصدر: | Journal of Civil Engineering and Architecture. 6 |
| بيانات النشر: | David Publishing Company, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Ettringite, Materials science, Metallurgy, Catalysis, Corrosion, chemistry.chemical_compound, symbols.namesake, chemistry, symbols, Erosion, Carbonate, Thaumasite, Sulfate, Raman spectroscopy |
| الوصف: | The erosion failure mechanism of concrete is studied systematically based on field investigation and laboratory experiments of concrete samples from more than 30 km concrete lining and 10 hydraulic structures of Shandong Jiaodong water diversion project, in which the concrete failed only 3-6 months after construction was completed. With electron microscopy scanning, energy dispersive analysis, XRD (X-ray diffraction) analysis and Raman spectrum analysis of the mineral composition of the failure concrete and precipitates, chemical and physical reactions that occurred in the concrete under engineering environment were investigated. The analysis indicated that the rapid corrosion and dissolution reaction of the concrete in weak sulfate environment is due to sulfate and carbonate corrosion with the catalytic magnesium salt at low temperature. Also, corrosion damage facilitates the sulfate ions and carbonate ions into the concrete, and the expansion of ettringite and TSA (thaumasite sulfate attack) reaction also accelerates the corrosion damage of the concrete. |
| تدمد: | 1934-7367 1934-7359 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::049fa19a600e349c57f4b1e428a85145 https://doi.org/10.17265/1934-7359/2012.10.019 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........049fa19a600e349c57f4b1e428a85145 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19347367 19347359 |
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