and the improved testing device of autogenous shrinkage was used to test early autogenous shrinkage of ufa concrete.
在此基础上,采用改进的混凝土自收缩试验装置对ufa混凝土的早期自收缩变形进行了测试。
the research shows that fly ash could restrain early autogenous shrinkage by changing the parameter of binder, such as hydrated velocity, creep coefficient, elastic modulus and so on.
研究表明:粉煤灰通过改变胶凝材料体系水化速度、徐变系数、弹性模量,可以有效抑制早期混凝土的自收缩。
the autogenous shrinkage of hpc develops greatly and mainly during early age due to a low water binder ratio, but there is no standard test method for early autogenous shrinkage of the concrete.
高性能混凝土因水胶比低、自收缩大且主要发生在早期,而目前对于早期自收缩的测量还没有统一标準可依。