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1.
该文阐述了开展非金属材料无损评价的必要性，提出了研究非金属材料超声检测的设想，以及混凝土结构抗冻性的超声检测方法，可供有关研究人员参考。 相似文献
2.
An example of using ultrasonic method to detect the compactness of complicated concrete-filled steel tube in certain high-rise building was discussed in this study. Because of the particularity of the complicated concrete-filled steel tubular column, the plane detection method and embedded sounding pipe method were adopted in the process of effectively detecting the column. According to the results of the plane detection method and embedded sounding pipe method, the cementing status of steel tube and concrete can be concluded, which cannot be judged by the hammering method in the rectangular steel tube-reinforced concrete. 相似文献