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。
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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