毕业设计（论文）文献综述
铁锶氧体粉末对水泥砂浆自收缩的影响研究
摘 要
水泥砂浆作为一种常见的建筑材料，广泛应用于各种建筑中。随着建筑的发展，对混凝土的性能要求也越来越高。水泥砂浆的自收缩便是其中一项重要的研究内容。如今，越来越多的新型材料被发明出来，并添加在混凝土中以改善其性能。铁锶氧体具有原材料丰富、售价低廉、工艺成熟、耐氧化的特点，该材料可以用来制备新型铁锶氧体基核电牺牲材料，减轻严重核电事故的危害。
本文通过介绍水泥砂浆的历史研究背景，结合国内外的研究现状，对本研究的可行性进行了分析。本文主要研究了铁锶氧体对水泥砂浆自收缩的影响，探究了铁锶氧体对水泥砂浆微观结构（微观形貌、孔隙率、孔径分布）和力学性能（抗压强度、抗折强度）的影响，得到了铁锶氧体在水泥砂浆中的最优掺量。本研究结果对于水泥砂浆的配合比优化设计和性能改善具有一定的指导意义。
关键词：水泥砂浆；铁锶氧体；自收缩；力学性能；微观结构
Abstract
As a common building material, cement mortar is widely used in various buildings. With the development of the building, the performance requirements for concrete are also increasing. The autogenous shrinkage of cement mortar is one of the important research contents. Today, more and more new materials are invented and added to concrete to improve its performance. Strontium ferrite is characterized by abundant raw materials, low price, mature technology and oxidation resistance. The material can be used to prepare new strontium ferrite nuclear sacrificial materials to mitigate the serious nuclear power accidents.
This paper analyzes the feasibility of this study by introducing the historical background of cement mortar and combining the research status at home and abroad. This paper mainly studies the effect of ferrite on the strontium ferrite of cement mortar, explores the effect of strontium ferrite on the microstructure (micromorphology, porosity, pore size distribution) and mechanical properties (compressive strength, flexural strength) of cement mortar, and got the optimal amount of strontium ferrite in cement mortar. The results of this study have certain guiding significance for the optimization design and performance improvement of cement mortar.
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