我国自建国以来。在输变电工程中广泛采用了钢筋混凝土电杆和变电架构为国家节约了大量钢材,成为我国电力建设的一个特色。众所周知,混凝土构件在制作、运输和吊装过程中容易产生各种缺陷,其中最常见的便是裂缝,即使是预应力混凝土电杆也难以避免。这样电杆和变电架构长年经受大气和雨水的侵蚀,尤其当气温降到0℃以下时,裂缝中的水 Since the founding of our country. The extensive use of reinforced concrete poles and substations in power transmission and transformation projects has saved the country a lot of steel and has become a feature of China’s power construction. As we all know, concrete components are prone to various defects in the process of production, transportation and hoisting. The most common one is cracks, even pre-stressed concrete poles are difficult to avoid. In this way, poles and substations have been exposed to atmospheric and rainwater erosion for years, especially when the temperature drops below 0°C.