温度对埋入式混凝土结构耐久性监测传感器监测结果的影响*

针对当前混凝土结构耐久性监测常用的ECI-2传感器和阳极梯传感器，研究温度变化对两种传感器监测结果的影响。研究结果表明：温度对ECI-2传感器的氯离子探针电位和线性极化电阻影响较大，尤其是线性极化电阻，但对钢筋的自腐蚀电位影响不大；对阳极梯传感器的自腐蚀电位和电偶腐蚀电流影响不大，但对混凝土电阻的监测结果影响较大。在实际工程中采用这两种传感器监测混凝土结构的耐久性健康状况时，必须对受温度影响大的监测参数进行修正。

Influence of temperature on monitoring results of embedded durability monitoring sensor in concrete structure

The influences of temperature on the monitoring results of two commonly used durability monitoring sensors,ECI-2 sensor and anode-ladder sensor,are investigated.The results show that for ECI-2 sensor,the temperature could affect the potential of the Cl-probe and the linear polarization resistance dramatically,especially the linear polarization resistance,but the influence of temperature on the corrosion potential of rebar is tiny.For the anode-ladder sensor,the temperature could affect the resistance of concrete significantly.However,the influences of temperature on the corrosion potential and galvanic corrosion current are tiny.While both durability monitoring sensors are used to monitor the durability status of concrete structure,the monitoring results affected by temperature should be compensated dramatically.