在建筑工地和建筑企业中混凝土和钢筋混凝土质量非破损检验的试验、研究和推广工作已经进行五年多了。由间接方法可以测得大量数据使有可能采用统计方法来评定所取得的结果,这样就使可能的误差减到最小。因此国内外的研究工作者和生产人员对非破损检验产生了极大的兴趣。 It has been more than five years since the test, research, and extension of non-breakage inspections of concrete and reinforced concrete in construction sites and construction companies. The large amount of data that can be measured by indirect methods makes it possible to use statistical methods to assess the results achieved, thus minimizing possible errors. Therefore, domestic and foreign research workers and production personnel have great interest in non-destructive testing.