Quantitative Study On Ultrasonic Evaluation Of Flaws In The Concrete

Concrete is one of the most important material in civil engineering, it become a significant task to enhance the supervision and control of concrete. As a precondition not to influence the capbility to load or other function. The examine means to mensurate some relevant physical value right on the framework or component ,that is,nondestructive evaluation become an important direction of civil engineering. Through the relativity of the value and the quality of concrete.we can speculate a series of quality of concrete,for example intensity ,isotropy,continuity and wear ,etc.But at present,through most of the means of nondestructive evaluation, we can only determine the existence of flaws,or approximately estimate the size ,location of flaws by experiences a stage of qualitative analysis of flaws,the results from these means are unsatisfactory. so quantitative study of the results have significant practicable value and applicable prospect.In the article,we primarily research the ultrasonic nondestructive evaluation of flaws in the concrete. through the examination,and the application of signal processing methods:WAVELETS, we quantitatively study the parameter,such as time,amplitude,frequence and waveform etc. Eventually a conclusion is drawn,it verify the feasibility of quantitive analysis is good.