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。
For the sake of further analysis on the overall structure in the construction phase, composite creep coefficient is adopted to express the creep behavior of centric loaded CFST members.
为了进一步进行整体结构施工阶段分析，本文继而用组合徐变系数来表达钢管混凝土轴压构件的徐变变形。
The measured values of creep coefficient are far less than that of current bridge code (JTG D62-2004), and it has the characteristics of convergence after 170 days.
通过试验结果与现行桥规JTG D62-2004的比较得出：配筋高强混凝土徐变系数远小于规范取值，且在170天后徐变系数有收敛的特征。
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