介绍了一套高性能混凝土的约束收缩试验方法。
A test method for restrained shrinkage of high performance concrete is introduced.
自由收缩对混凝土并无不良影响，约束收缩是混凝土开裂的源动力。
Restrained shrinkage of concrete is a main source of cracks in concrete.
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。
On this purpose, the performence of free shrinkage of mortar and restrained shrinkage of concrete were studied.
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