CAJ | 학술논문

随着橡胶混凝土的推广应用，展开橡胶混凝土工程质量的无损检测极其必要。采用超声脉冲法的方法研究钢筋对混凝土的超声声学参量的影响，得出不同粒径的橡胶混凝土中，钢筋对橡胶混凝土超声声学参量的影响程度大小。当探头连线与钢筋轴线平行检测时，橡胶粒径越小和掺量越大，钢筋的影响范围越大，反之相反；当探头连线与钢筋垂直时，在大掺量橡胶混凝土中，橡胶粒径越大和掺量越小，钢筋对超声声学参数的影响程度越减小。
수착상효혼응토적추엄응용，전개상효혼응토공정질량적무손검측겁기필요。채용초성맥충법적방법연구강근대혼응토적초성성학삼량적영향，득출불동립경적상효혼응토중，강근대상효혼응토초성성학삼량적영향정도대소。당탐두련선여강근축선평행검측시，상효립경월소화참량월대，강근적영향범위월대，반지상반；당탐두련선여강근수직시，재대참량상효혼응토중，상효립경월대화참량월소，강근대초성성학삼수적영향정도월감소。
With the popularization and application of rubber concrete ,it becomes necessary to adopt nondestructive quality testing on its products .By adpoting ultrasonic pulse detection method ,the effect of the steel bars in the concrete on the ul-trasonic acoustic parameters was studied and the variations of the influence on the parameters were obtained based on the rubber concrete of different grain diameters .It is drawn that when the connection wire of the probe is parallel with the steel axis in the detection ,the smaller the grain size and the bigger the rubber content ,the stronger the steel bars affect the ul-tralsonic acoustic parameters;on the contrary ,when they are vertical with each other ,in the concrete with large content of rubber ,the greater the rubber grain size and the smaller the content ,the weaker the steel bars impact the parameters .