【摘要】 无约束混凝土早龄期变形性能试验装置,采用重液悬浮混凝土试件的方法来消除试模对试件的变形约束,此方法能够准确地测量混凝土的自浇筑成型开始的早龄期变形参数。为考察无约束混凝土早龄期变形性能试验装置及试验方法的灵敏性,对混凝土早龄期变形性能的部分主要影响因素进行研究,探讨了水泥用量、水泥品种和外加剂种类对混凝土无约束早龄期变形性能的影响。更多还原

【Abstract】 In this paper,testing apparatus for early-age concrete unconstrained deformation will be introduced for accurate measurement of concrete deformation since casting,suspension of heavy-liquid will be used to eliminate the restriction of mould,early-age deformation of concrete can be accurately measured by this method.In order to measure the sensitivity of the testing apparatus,main influence factors,such as cement content,cement type and concrete additive variety willed be discussed.更多还原