Starting from four aspects of powder material,coarse-fine aggregates,admixture and water,the paper analyzes the impact of raw ma-terial upon self-compacting concrete performance,studies the preparation methods of C40 steel-tube self-compacting concrete,and illustrates its performance testing process,and finally draws some meaningful conclusions.%从粉体材料、粗细骨料、外加剂、水四种原材料入手，分析了原材料对自密实混凝土性能的影响，研究了C40钢管自密实混凝土的配制方法，并对其性能试验过程作了阐述，通过试验得出了一些有意义的结论。
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