中文摘要：

在不同pH值、碳化、氯离子侵蚀条件下，利用磷酸镁水泥对不同掺量的硝酸铅进行固化。研究不同条件下重金属铅的浸出率规律，并对不同掺量的硝酸铅对磷酸镁水泥水化产物种类、水化产物形貌进行了探讨。研究表明，在PH值为2时，铅的浸出率最大，随着pH值增加浸出率降低，但在pH值为12，浸出率又有所升高；在碳化条件下铅的浸出率随养护时间的延长先增加后趋于稳定；在氯离子侵蚀条件下，铅的浸出率随侵蚀时间的延长变化不明显。

英文摘要：

The solidification of magnesium phosphate cement with different content of nitric acid lead in different pH value, carbonization conditions and chloride ions. Heavy metal leaching rate law and the influence of differ- ent content of nitric acid lead on types and morphology of cement hydration products were studied. Research shows that： when the pH value was 2, lead leaching rate was largest, and as the pH value increased the leac- hing rate decreased. But the pH value was 12, leaching rate was slightly increased. The lead leaching rate would increase and then level-off in carbonization conditions. In chloride ions conditions, leaching rate of lead with the extension erosion time does not change significantly.