confined expansion

The expansive agent can enhance the impermeability and the cracking-resistance of concrete through the working of the compensation shrinkage of concrete produced by confined expansion when it is added to concrete.

膨胀剂掺入到混凝土中，通过产生一定的限制膨胀，补偿混凝土的收缩，有利于提高混凝土的抗渗防裂。

It is found that effectively confined plasma expansion is the main reason for the enhancement of the momentum-coupling coefficient.

分析发现，对等离子体的有效约束是提高动量耦合系数的主要原因。

It has been proved by the investigation that the filling effect of the confined expansion makes the reduction of holes in concrete as well as the increase of strength and elastic modulus of concrete.

实验证明：由于约束膨胀的填充作用，大幅度降低空隙率及孔径，定将有效地提高混凝土的弹性模量及强度。

A computation method for a confined jet in sudden expansion duct

突扩管中受限射流的计算方法研究

The reinforcement ratio of a construction must be designed to create adequate confined expansion in the shrinkage_compensation concrete.

在结构设计时，需要考虑配筋率的高低，使对混凝土的约束能满足适当膨胀的要求。