The measured values of creepcoefficient are far less than that of current bridge code (JTG D62-2004), and it has the characteristics of convergence after 170 days.
The research shows that fly ash could restrain early autogenous shrinkage by changing the parameter of binder, such as hydrated velocity, creepcoefficient, 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。
3
For the sake of further analysis on the overall structure in the construction phase, composite creepcoefficient is adopted to express the creep behavior of centric loaded CFST members.