节点文献
中等强度混凝土超声波速与龄期相关性试验研究
RELATIVITY TEST OF THE ULTRASONIC VELOCITY AND AGE OF MIDDLE INTENSITY CONCRETE
【摘要】 通过对 2 7个混凝土试块的超声试验 ,提出判定早期混凝土强度的试验方法。研究结果表明普通混凝土在 2 8d内龄期与混凝土中超声波速有良好的相关性 ,并给出了具体的回归方程式 ,为超声回弹综合法提供了可靠的对照曲线。
【Abstract】 A method for determining the strength of nonage concrete was put forward through ultrasonic testing of twenty seven specimens. The favorable relativity of the ultrasonic velocities and ages (within 28 days) of concretes was shown by test results and its regression formula was given as criterion of the velocities for the qualities of concretes.
【关键词】 混凝土强度;
超声检验;
回归分析;
声速;
【Key words】 Concrete strength; Ultrasonic testing; Regression analysis; Velocity;
【Key words】 Concrete strength; Ultrasonic testing; Regression analysis; Velocity;
- 【文献出处】 无损检测 ,Nonde Structive Testing , 编辑部邮箱 ,2001年10期
- 【分类号】TU528
- 【被引频次】21
- 【下载频次】146