铁钡氧体对水泥砂浆力学性能影响研究
摘 要
目前，水泥基材料是建筑工程中常用的材料，核电站的建设也会用到大量的水泥基材料。核电作为一种清洁能源，具有绿色、清洁、高效的特点，但是其安全性不容忽视。为了降低严重核电事故的危害，通常在第三代核电站设计中引入堆芯捕集器的概念，而核电牺牲材料则是堆芯捕集器的重要组分。在水泥砂浆中掺入一定量的铁钡氧体可制备新型铁钡氧体基核电牺牲材料。本文主要探究探究不同掺量（0%、5%、10%、15%、20%）的铁钡氧体对水泥砂浆力学性能（抗折强度、抗压强度）的影响，得到不同掺量的铁钡氧体对不同龄期水泥砂浆力学性能的影响规律。本研究的结果对铁钡氧体掺入水泥砂浆的最优配合比及其应用具有指导意义。
关键词：水泥砂浆；铁钡氧体；抗压强度；抗折强度
Abstract
Currently, cement-based materials are commonly used in construction engineering, and a large amount of cement-based materials are used in the construction of nuclear power plants. As a kind of clean energy, nuclear power is green, clean, and efficient, but the safety of nuclear power plant cannot be ignored. In order to reduce the risk of serious nuclear accident, the concept of core catcher is usually introduced into the design of the third generation nuclear power plant. A new type of BaFe12O19 based nuclear sacrificial material can be prepared by adding a certain amount of BaFe12O19 into cement mortar.
This paper mainly studys the mechanical properties (flexural strength and compressive strength) of cement mortar with different contents (0%, 5%, 10%, 15%, 20%) of BaFe12O19. The findings of this paper can guide the design and improvement of the BaFe12O19 based sacrificial materials.
Key words：Cement mortar; BaFe12O19 ; flexural strength; compressive strength
引言
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