碱硅酸反应的交流阻抗响应分析

Analysis of the AC Impedance Response of Alkali-silica Reaction

用拓扑学的方法研究了碱硅酸反应的交流阻抗谱 ,提出了鉴定碱硅酸反应是否存在的判据和确定集料碱活性大小的方法 .对于碱硅酸反应的交流阻抗响应的 3个特征进行了研究 ,并对其根源进行了理论分析 .分析表明 ,碱硅酸反应的特征是在等效电路中存在左旋的常相角元件 .

The AC impedance response of alkali silica reaction (ASR) was studied by the method of to pology. The criterion of the existence of ASR was proposed, the alkali reactivity of the aggregate could be measured by the charge transfer resistance R of the specimen. A special constant phase angle element (CPE) exists in the equivalent circuit of the impedance when there exists ASR.