This paper discusses some reasons for measuring moisture in concrete structures. Within the framework of the prestressed concrete containment monitoring of the French nuclear reactors fleet, a method is proposed to assess the possible contribution of concrete moisture monitoring in ageing management strategy. Based on sensitivity and variance analysis, it aims at clarifying the conditions necessary to enhance the identification of some model parameters for concrete shrinkage and creep. In-situ water content monitoring could be beneficial to improve ageing predictions if some conditions are met. However, the estimated measurement uncertainties to reach this goal seem to exceed current devices capabilities.

本文讨论了测量混凝土结构中水分的一些原因。在法国核反应堆舰队的预应力混凝土安全壳监测框架内，提出了一种方法来评估混凝土水分监测在老化管理策略中的可能贡献。在敏感性和方差分析的基础上，其目的是弄清增强识别混凝土收缩和蠕变某些模型参数所需的条件。如果满足某些条件，原位含水量监测可能有助于改善老化预测。但是，达到该目标的估计测量不确定性似乎超出了当前设备的能力。