全文总字数：5561字
1. 毕业设计（论文）的内容和要求
本试验通过分析不同水泥混凝土试件的表层和内部（0-5mm），设计制备出水化产物只有C-S-H凝胶和水化产物含有氢氧化钙和C-S-H凝胶的两种水泥基材料。
通过分析硼酸侵蚀过程中净浆试件矿物组成、微观结构和试件长度，表征硼酸侵蚀过程中水泥净浆的劣化规律；表征混凝土试件被硼酸腐蚀后表层和内部性能的不同变换。
毕业论文的内容和要求如下：（1）在第1章背景介绍部分，根据毕业要求指标点3.2的要求，通过文献阅读和总结分析，给出如下内容：硼酸在核电混凝土工程中的作用，核电混凝土硼酸贮存部分强度等级，硼酸应用浓度，硼酸对混凝土侵蚀研究的现状及混凝土宏观力学性能和微观结构的表征方法。
2. 实验内容和要求
根据毕业要求指标点3.3和4.2，本课题要开展的实验内容和要求如下：1.成型20mm20mm80mm的净浆试件（胶凝材料配比参照混凝土试件，水胶比为0.20，下同），研究硼酸溶液对净浆的矿物组成、孔隙结构和微观形貌的影响规律。
2.成型100mm100mm100mm的混凝土试件，研究受硼酸溶液影响的混凝土试件的性能的变化规律，并学会origin软件对数据进行处理。
3. 成型100mm100mm100mm的混凝土试件，研究受硼酸溶液影响的混凝土试件的试件pH的变化规律，并学会origin软件对数据进行处理。
3. 参考文献
根据毕业要求指标点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. Gang, S.; Hong, Y. Leak detection technology of boric acid corrosion for nuclear power plant. Total. Cor. Con. 2016, 1, 1619. 2. Kam, D.H.; Choi, Y.J.; Jeong, Y.H. Boric acid and boiling time effects on critical heat flux for corrosive and non-corrosive materials. Ann. Nucl. Energy 2020, 136, 106999. 3. Jhonson, J. Whos watching the reactors? Che. Eng. News. 2010, 81, 2731.4. Queral, C.; Gonzalez-Cadelo, J.; Jimenez, G.; Villalba, E. Accident management actions in an upper-head small-break loss-of-coolant accident injection failed. Nucl. Technol. 2011, 175, 572593. 5. Hua, R.; Lin, Y.; Jiwa, L.; Yonghuan, W. Raesearch on the corrosion effect on the durability of concrete structure of a nuclear power plant by boric acid. Indu. Constr. 2017, 47, 3538.6. Wheeler, D.M.; Posivak, E.; Freitag, A.; Geddes, B. Reactor pressure vessel head packaging and disposal, In Proceedings of Office of Scientific and Technical Information Technical Reports: Tucson, AZ, USA, 26 February 2003.7. Qi, P.; Cui, H.; Feng, M.; Shao, W.; Liao, S.; Li, W. Preliminary study on detection technology of the cladding weld of spent fuel storage pool. AIP Conference Proceedings 2018, 1949, 230022. 8. Renger, S.; Alt, S.; Gocht, U.; Kstner, W.; Seeliger, A.; Kryk, H.; Harm, U. Multiscaled Experimental Investigations of Corrosion and Precipitation Processes After Loss-of-Coolant Accidents in Pressurized Water Reactors. Nucl. Technol. 2018, 205, 248261. 9. Kang, S.-S.; Hwang, S.S.; Kim, H.; Lim, Y.S.; Kim, J.-S. The experience and analysis of vent pipe PWSCC (primary water stress corrosion cracking) in PWR vessel head penetration. Nucl. Eng. Des. 2014, 269, 291298. 10. Jin, X.Y.; Jin, N.G.; Tian, Y. Study on the Behavior and Durability of Reinforced Concrete in Boric Acid Environment. Key Eng. Mater. 2008, 400, 441446.11. Zhan, Y.; Li, Q.; Jin, X.Y.; Tian, Y.; Jin, N.G. Behavior of Reinforced Concrete Subjected to Boric Acid Corrosion of Nuclear Power Plant. Adv. Mater. Res. 2011, 242246.12. Demirba, A.; Karsliolu, S.; Karslioglu, S. The effect of boric acid sludges containing borogypsum on properties of cement. Cem. Concr. Res. 1995, 25, 13811384. 13. Pabalan, R.; Chiang, K.-T.K. Experimental Study and Reactive Transport Modeling of Boric Acid Leaching of Concrete. In Proceedings of the EPJ Web of Conferences; EDP Sciences: Les Ulis, France, 2013; Vol. 56, p. 1009. 14. Pabalan, R.; Yang, L.; Chiang, K. Boric Acid Corrosion of Concrete Rebar. In Proceedings of the EPJ Web of Conferences; EDP Sciences: Les Ulis, France, 2013; Vol. 56, p. 06005. 15. Chung-Hsien, L.; Su, K.-H. A Cleanup Machine Using Reverse Osmosis Method to Remove Silica from Boric Acid Tank at Maanshan Nuclear Power Station. Nucl. Technol. 2008, 162, 333341.16. El-Sakhawy, N.R.; El-Dien, H.S.; Ahmed, M.E.; Bendary, K.A. Influence of curing on durability performance of concrete. Mag. Concr. Res. 1999, 51, 309315. 17. Li, B.; Cai, L. Acidification prediction model of concrete based on grey system. JCSS 2013, 41, 13751380.18. Niu, J.; Niu, D. Experimental study on the neutralization of fly ash concrete attacked by acid rain. In Proceedings of the 2011 International Conference on Electric Technology and Civil Engineering (ICETCE); Institute of Electrical and Electronics Engineers (IEEE): Lushan, China, 2224 April 2011; pp. 31623165. 19. Huang, B.; Qian, C. Experiment study of chemo-mechanical coupling behavior of leached concrete. Constr. Build. Mater. 2011, 25, 26492654.20. Chen, W.; Huang, B.; Yuan, Y.; Deng, M. Deterioration Process of Concrete Exposed to Internal Sulfate Attack. Materials 2020, 13, 1336.21. Kumar, R.; Bhattacharjee, B. Porosity, pore size distribution and in situ strength of concrete. Cem. Concr. Res. 2003, 33, 155164.22. Zhang, R.Y.; Han, S.F.; et al. Standard for evaluation of concrete compressive strength; GB/T 50107-2010; CABR: Beijing,China, 31 May 2010; pp. 5-9.
4. 毕业设计（论文）计划
整个毕业设计（论文）课题视为一个独立项目，在进行期间，学生要按照计划有序开展，按规定时间节点完成内容，充分考虑本课题全周期、全流程管理要素。
本课题各阶段工作内容要求如下： 2021.1.10前指导老师在系统完成选题申报，学生选题。
2021.1.10~2021.1.15指导教师完成任务书下达。
以上是毕业论文任务书，课题毕业论文、开题报告、外文翻译、程序设计、图纸设计等资料可联系客服协助查找。
