void-free

The variation of porewater pressure and its relationship with liquefaction and densification in saturated sand under impact loading;

冲击载荷下饱和砂土中孔隙水压力的变化及其与液化密实的关系

Application and preparation of self-compacting concrete;

自密实混凝土的配制与应用

Mixing technology of C70 self-compacting steel tube-confined concrete;

C70自密实钢管混凝土材料配制技术

Research on the workability of high-strength semi-lightweight self-compacting concrete;

高强自密实次轻混凝土工作性能研究

The author's study of continuous compact deposit grading of aggregate through(systematic) experimental research lead to extend the two conventional formulae of continuous grading to five formulae depending on five rheological types of concrete mixtures.

从传统的连续级配密实堆积入手,通过系统的试验研究,将传统的2个常用的连续级配计算式,依5种流变性类型混凝土调整为5个计算式,并得出了5种类型拌合物的最佳石子用量,明确了砂率随胶结材用量变化的规律。

The results indicated that UFA has the effects of dense packing,water reducing and strength increasing.

结果表明,UFA有减水增强和密实填充效果;以25%的UFA等量取代水泥,成功配制了铁路预应力钢筋混凝土试验梁工程的高性能混凝土。

The density fluctuation,packing mechanism of composite powders and constitutive equation during pressing were studied.

研究了Ag和SnO2的原始粉末形貌,并对高能球磨后粉体的分布特征进行了观察,研究了压制过程中Ag-SnO2复合粉体的密度变化和密实机制,推导了Ag-SnO2复合粉体压制的本构方程,该方程计算结果实测值吻合较好,预测精度较高。