One of the primary issues in studying early shrinkage of concrete is how to measure the development of early shrinkage through experimental methods, so as to qualitatively compare the shrinkage cracking trends of different compositions of concrete and provide basic material performance data for quantitative structural analysis. Evaluating the early shrinkage performance of concrete can be determined by measuring the free shrinkage value of concrete and observing the cracking trend under restricted shrinkage. The measurement of free shrinkage can usually only qualitatively analyze the size of shrinkage in different types of concrete, but cannot quantitatively analyze the impact of shrinkage on the structure; In addition to qualitatively analyzing the cracking trend, the limited shrinkage test can also further quantify the structural impact caused by shrinkage.