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把CAP测试机连接到一个真空系统上，它就能表示平的砼表面的空气流速。这种无破损测试方法是测试砼中的流通路径。这些流通路径导致含有氯离子等有害物质的液体进入砼．锈蚀钢筋。渗透性还与磋结构物的损坏有关，这些损坏是由融冻造成的，或是膨胀构件形成的。作为一种小型快速
By connecting the CAP Tester to a vacuum system, it represents the air velocity on a flat concrete surface. This nondestructive testing method is to test the flow path in concrete. These flow paths lead to liquids containing chlorine and other harmful substances into the concrete. Corrosion of steel. Permeability is also associated with damage to the structure, which is caused by thaw or expansion. As a small fast