中文摘要：

采用柱状法试验和贯入试验对自密实混凝土的静态稳定性进行了测试，收集了自密实混凝土扩展度分别达到500mm、600mm的流动时间T500、T600及流停时间Tfin和相应的扩展度数据，并以此为基础，研究了自密实混凝土基本工作性能与其静态稳定性间的关系。结果表明：自密实混凝土的流动时间和扩展度与其静态稳定性间存在良好相关性，流动时间的延长或扩展度的降低均有利于静态稳定性的提高；同时，自密实混凝土流动时间死n、死00和乃00对其静态稳定性敏感程度依次递减；另外，当自密实混凝土的基本工作性能至少满足5．3s≤T500≤20．0S，12．1s≤T600≤46．4S，35．7s≤Tfin≤63．7S和550mm≤坍落扩展度≤715mm中的3项时，可判定其静态稳定性良好。

英文摘要：

The static stability of self-consolidating concrete （SCC） was investigated via the penetration test and the column test. The flow time of T500, T600 and Tfin were collected when the slump flow reached 500 mm, 600 mm and stopped, and then the flow diameter was also recorded. The relationship between the basic workability and static stability of SCC was analyzed. The results show that the flow time and diameter both are closely related to the static stability of SCC, a longer flow time or a shorter slump flow gives a better static stability. Also, the sensitivity of the flow time decreases to the static stability of SCC from Tfin to T500. Besides the SCC is considered to have a good static stability when at least three of the basic workabilities are satisfied, which are 5.3 s≤T500≤20.0 s, 12.1 s≤T600≤46.4 s, 35.7 s≤Tfin≤63.7 s, 550 mm≤slump flow≤715 mm.