On this purpose, the performence of freeshrinkage of mortar and restrained shrinkage of concrete were studied.
为实现这一目的，作者研究了砂浆的自由收缩规律与混凝土的环形约束收缩规律。
2
Throughout the drying process, the surface of the freeshrinkage strain is the largest, the more close to the core layer the smaller the freeshrinkage strain.
在整个干燥过程中，表层的自由干缩应变最大，越靠近芯层自由干缩应变越小。
3
The result shows that the tests, which are used in this paper, including ring test and freeshrinkage test, could do well in evaluating the shrinkage-cracking potential of HSC.