化学收缩是混凝土产生收缩裂缝的基本原因之一。研究水泥的化学收缩及其预测模型对研究混凝土的体积稳定性，提高混凝土的抗裂性能有重要的意义。采用自制的化学收缩试验装置对3种常用水泥的化学收缩进行了试验研究，提出了水泥最终化学收缩值的计算方法及化学收缩的预测模型，模型的预测值与测试值吻合得很好，对工程实践和科学研究具有指导和参考作用。

The self made chemical shrinkage test device was used to research on the chemical shrinkage of three types of usual cement, and the calculation method for ultimately chemical shrinkage of cement value and the prediction model used for chemical shrinkage were proposed. The predicted values of the model coincide well with measured data.