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目前用于结构混凝土强度测试的回弹法、超声法、拉拔法和取芯法,有的只能反映混凝土表面情况;有的精度受限制或对结构物破损严重,因而使用有很大局限性,难以取得最佳的技术经济效果。中国建筑第一工程局建筑科学研究所研究的超声拉拔综合法,有效地克服了上述几种试验的局限性,在研究拉拔法测试混凝土强度取得成功的基础上,又引入超声法,由于超声法是对混凝土整个剖面的
The rebound method, ultrasonic method, drawing method and coring method currently used for strength test of structural concrete can only reflect the condition of the concrete surface; some accuracy is limited or the structure is seriously damaged, and therefore the use has very limited Sex, it is difficult to obtain the best technical and economic results. The Ultrasonic drawing synthesis method studied by the Institute of Building Research of the China Construction First Engineering Bureau effectively overcomes the limitations of the above-mentioned tests. Based on the success of the drawing method to test the strength of concrete, the ultrasonic method was introduced. Ultrasound is for the entire section of the concrete