毕业设计（论文）文献综述
铁锶氧体粉末对水泥砂浆体积稳定性影响研究
摘 要
核电是当今和未来世界重要的可再生能源，对人类的生存发展起着至关重要的作用。牺牲混凝土是第三代核电站建设的重大技术革新在严重核事故中，通过牺牲混凝土的使用，使得核电站在重大安全事故中的安全性大大提高。
本文主要研究不同掺量的铁锶氧体粉末对水泥砂浆体积稳定性的影响。在规定条件下浇筑铁锶氧体粉末含量为0%、3%、6%、9%的试件后，在标准养护1d、3d、7d、14d、28d、56d、91d用比长仪对试件进行行测量，进而得出其收缩率变化。综合评价不同掺量铁锶氧体粉末对水泥砂浆体积稳定性的影响，得到铁锶氧体粉末的优选掺量。
关键词：高性能混凝土；水泥砂浆；铁锶氧体；体积稳定性
Abstract
Nuclear power is an important renewable energy to the world in today and future. It plays a vital role in the survival and development of human beings. Sacrificial concrete is a major technological innovation in the construction of the third generation nuclear power plant. In serious nuclear accidents, the safety of nuclear power plants in major safety accidents is greatly improved by the use of sacrificial concrete.
This paper mainly studies the influence of different dosage of Sr-ferrite powder on the volume stability of cement mortar. The specimens with 0%, 3%, 6% and 9% Sr-ferrite powder content were poured under specified conditions. The specimens were measured with a specific length instrument on 1d, 3d, 7d, 14d, 28d, 56d and 91d after standard curing, and the change of shrinkage rate was obtained. The effect of different dosage of iron strontium oxide powder on volume stability of cement mortar was evaluated comprehensively, and the optimal dosage of Sr-ferrite oxide powder was obtained.
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