石膏形成对水泥基材料性能的影响任务书

 2021-10-22 21:44:46

1. 毕业设计(论文)的内容和要求

本试验拟测定不同pH值下石膏的溶解度,试验研究在模拟混凝土孔隙溶液和水泥浆体内,pH值和硫酸根离子浓度,对钙矾石和石膏形成的影响;并在此基础上研究石膏形成对水泥基材料性能的影响。

毕业论文的内容和要求如下:(1)在第1章背景介绍部分,通过文献阅读和总结分析,给出如下内容:混凝土硫酸盐侵蚀机理,硫酸盐侵蚀过程中侵蚀产物石膏的形成条件研究现状,硫酸盐侵蚀过程中混凝土性能的表征手段。

本课题拟开展的研究内容和预期目标。

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2. 参考文献

根据毕业要求指点2.3,毕设期间要进行研究现状调查与总结,要求在开题报告及毕业设计(论文)中涉及的英文文献不少于20篇,其中近5年不少于8篇,英文文献不少于5篇。

以下是与本课题相关的部分文献列表:[1] Kaiwei Liu, Xingxing Chen, Zhe Yec, et al. Influence of pH on the leaching process and products of cement-based materials during sulfate attack[C]. The 15th International Congress on the Chemistry of Cement (ICCC 2019) in Prague, Czech Republic, September 16-20, 2019.[2] Liu K, Mo L, Deng M. Influence of pH on the formation of gypsum in cement materials during sulfate attack[J]. Advances in Cement Research, 2015, 27(8):487-493.[3] Bellmann F, Moser B, Stark J. Influence of sulfate solution concentration on the formation of gypsum in sulfate resistance test specimen[J]. CementConcrete Research, 2006, 36(2):358-363.[4] Tian B, Cohen M D. Does gypsum formation during sulfate attack on concrete lead to expansion?[J]. Cement Concrete Resarch, 2000, 30(1):117-123.[5] Chen J K, Jiang M Q. Long-term evolution of delayed ettringte and gypsum in Portland cement moetars under sulfate erosion[J]. Construction Building Materials, 2009, 23(2):812-816.[6] Xiong C, Jiang L, Xu Y, et al.Deterioration of pastes exposed to leaching, external sulfate attack and the dual actions[J]. Construction Building Materials, 2016, 116:56-62.[7] Liu K, Deng M, Mo L and Tang J. Deterioration mechanism of Portland cement paste subjected to sodium sulfate attack[J].Advances in cement Research, 2015, 27(8):447-486

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