Ultrasonic pulse velocity test procedure pdf file

In the ultrasonic pulse velocity test method, an ultrasonic wave pulse through concrete is created at a point on the surface of the test object, and the time of its travel from that point to another is measured. Experimental evaluation of cracks in concrete by ultrasonic pulse velocity t sri kalyan 1, a and j. Santhanam department of civil engineering, iit madras, chennai600 036. Detection of concrete damage using ultrasonic pulse velocity method s. Upv method can be used for estimating the depth of surface cracks. Introduction ultrasonic pulse velocity test is used to evaluate the material properties, to detect defects on the concrete structures. Compressive strength and ultrasound pulse velocity of mineral. Ultrasonic pulse velocity echo testing of concrete, rock, wood and ceramics with pundit pl200pe proceq ag. The maximum compressive strength and ultrasonic pulse velocity upv have been observed with the samples containing bfs. Guidebook on nondestructive testing of concrete structures.

The ultrasonic pulse velocity can be used to assess the quality and uniformity of the material. It was found that the velocity depended primarily upon the elastic properties of the material and was almost independent of geometry. Ultrasonic tests ultrasonic pulse velocity upv method is particularly effective, powerful and flexible, allowing indepth analysis of material homogeneity. Application of ultrasonic pulse velocity techniques for. Read time taken for the ultrasonic pulse from the instrument. The method is also useful for estimating crack depth and direction, and determining the thickness. Vmeter system for ultrasonic pulse velocity in concrete, wood, ceramic and other coarse grained and construction materials. The underlying principle of this test is the method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. Selection of the ultrasonic pulse amplitude adjustable from 250 to v.

There was 50 to 75% of probability of corrosion in beam member, due to shifting towards more negative values getting chances of corrosion of reinforcement. The test procedure has been standardized as standard test method for pulse velocity through concrete astm c 597, 2016. Use the a1220 monolith to measure thickness, locate inclusions, or detect flaws in the concrete. Ultrasonic pulse velocity test it measures the time of travel of an ultrasonic pulse passing through the concrete. Sep 20, 2014 ultrasonic pulse velocity test this test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. Ndt methods are very important components of inspection procedures of infrastructure objects. To assess the quality of concrete by ultrasonic pulse velocity method as per is. Measurement of the required time by the ultrasonic pulse to go through the tested material.

This communication aims to revisit this method emphasizing on its methodology and norms or standards that can guide its use on the assessment of the strength of concrete on site. The ultrasonic pulse is produced by the transducer. The velocity of an ultrasonic pulse through a material is a function of the elastic modulus and concretenessdensity of the material. Standard test method for laboratory determination of pulse velocities and ultrasonic elastic constants of rock1 this standard is issued under the. Comparison between different methods of ultrasonic pulse velocity tests on concrete k. This test is done to assess the quality of concrete by ultrasonic pulse velocity method as per. It is possible to determine concrete uniformity, to control its quality, to follow up the deterioration, to check the presence of. It features online data acquisition, waveform analysis and full remote control of all transmission parameters. Ultrasonic pulse velocity method civil engineering portal. Annexes to this standard provide information on the determination of pulse velocity, factors influencing pulse velocity measurements, and the correlation of pulse velocity and strength. The method is based on the propagation of a high frequency sound wave which passes through the material. To study the structural homogeneity analysis of a college building using the nondestructive testing methods i. Reference blocks, instrument settings, and standardization instructions for the ultrasonic instrument are included in the individual ultrasonic inspection procedures. Impact echo method, pulse echo method and pulse velocity method 1.

If you continue browsing the site, you agree to the use of cookies on this website. Proceq pundit offers the most versatile range of ultrasonic testing instruments that are ergonomic and portable. Standard test method for pulse velocity through concrete. Ultrasonic material analysis is based on a basic principle of physics. The pundit pl200 is a bestinclass ultrasonic pulse velocity upv test instrument to examine the quality of concrete and other materials such as rock, wood and ceramics. This test method rapidly and easily allows you to locate cracks, voids, rot and other areas of inhomgenity. The ultrasonic pulse velocity technique first introduced by long, kurtz and sandenaw 1945 for evaluating the non destructive method of testing for quality of concrete by transmitting a irrational pulse to travel a known distance through a concrete. Ultrasonic velocity an overview sciencedirect topics. The concrete surface where probes are to be applied is cleaned properly. The pundit pl200pe employs stateoftheart pulse echo technology to extend the ultrasonic application to objects where access is restricted to a single side. Ultrasonic pulse velocity test procedure concrete test. Methods for the determination of longitudinal pulse velocity and assessment of concrete properties by ultrasonic pulse velocity, as recommended by standards of the uk, usa, germany, russia, slovakia, hungary, and rilem, are evaluated. Ultrasonic testing procedure for concrete structure.

To learn more about upv method, and its applications, click here. The apparatus for ultrasonic pulse velocity measurement consists of the following. Ultrasonic pulse velocity test consists of measuring travel time, t of ultrasonic pulse of 50 to 54 khz, produced by an electroacoustical transducer, held in contact with one surface of the concrete member under test and receiving the same by a similar transducer in contact with the surface at the other end. At present the ultrasonic pulse velocity method bs 188. The ultrasonic pulse echo upe technology extends ultrasonic pulse velocity upv applications to objects where access is restricted to a single side. Influence of test conditions the pulse velocity in concrete may be influenced by any or all of the following. The ultrasonic pulse echo technique is a widely used method to obtain ultrasonic velocity data for solids. A basic mode of the ultrasonic testing method is known as time of flight, and it pertains to timing the arrival of the ultrasonic pulse from.

Principle of test the method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. Commonly called the ultrasonic pulse velocity upv is a comprehensive method, which provides information on both the mechanical. Ultrasonic pulse velocity tester nondestructive concrete. A test procedure, described in bs 1881 to determine indirect wave velocities, was refined. Ultrasonic pulse velocity tests capstone consultants. The method allows doing the tests at the same place, making possible a. Ultrasonic pulse velocity in concrete using direct and indirect transmission. Ultrasonic pulse velocity method ultrasonic pulse velocity this test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. In this test method, the ultrasonic pulse is produced by the transducer which is held in contact with one surface of the concrete member under test. Therefore, test results indicate that both methods can be used to assess the insitu properties of concrete or for quality control on site as soon as after the removal of formwork. Before switching on the v meter, the transducers should be connected to the sockets marked tran and rec. Ultrasonic pulse velocity is a nondestructive test of concrete pundit portable ultrasonic non destructive digital indicating tester is the instrument that used in ultrasonic pulse velocity test. Correlation between pulse velocity and compressive. The ultrasonic pulse or wave is produced and received by an electroacoustical transducer.

What is ultrasonic testing of concrete for compressive. The method consists of measuring the time of travel of an ultrasonic pulse passing. The ultrasonic equipment used in ultrasonic v inspection procedures described throughout this manual is listed in appendix b. Ultrasonic pulse velocity method of non destructive test.

Zero calibration with depuration of the time for the pulse to go through the probes. Pdf ultrasonic pulse velocity in concrete using direct and. Ultrasonic pulse velocity upv measurements seem to be a quite effective way to perform quality control, since this reliable and flexible test method allows. An ultrasonic pulse velocity upv test is an insitu, nondestructive test to check the quality of concrete and natural rocks. After a length l the pulse of vibrations is converted into an electrical signal by the second transducer, the timing circuit enables the transit time t of the pulse to be measured. Nondestructive test has been applied to measure damage in structures. The sample to be studied is prepared with two flat and parallel faces, usually oriented perpendicularly to a major crystallographic axis.

May 31, 2017 different techniques have been developed and used over time for the purpose of crack depth measurement in concrete. Pdf ultrasonic pulse velocity analysis in concrete specimens. Review of the ultrasonic pulse velocity evaluating. Ultrasonic pulse velocity tester at best price in india. From references, there were a lot of linear ultrasonic testing procedures in conc rete. Decrease of the ultrasonic pulse velocity in concrete caused by reinforcement 1019 active standard of american society for testing and materials astm c59709 standard test method for pulse velocity through concrete includes an explanation that the upv measured in the vicinity of the reinforcing steel will be higher than in plain. The testing procedure is consisting of upv test by direct, indirect and semidirect method at. Comparatively higher velocity is obtained when concrete quality is good in terms of density, uniformity, homogeneity etc. In particular, its ability to examine the state of concrete in depth is undoubtedly very good. Experimental study on ultrasonic pulse velocity evaluation of the. From references, there were a lot of linear ultrasonic testing procedures in concrete. Knowing the distance between the two points, the velocity of the wave pulse can be determined.

Ultrasonic pulse velocity tester is used to measure the velocity of propagation of ultrasonic pulses through concrete. June 2015 an ultrasonic pulse velocity upv test is an insitu, nondestructive test to check the quality of concrete and natural rocks. Some work in previous literature made use of the ultrasonic pulse velocity upv of concrete to. Ultrasonic pulse velocity testing bestinclass ultrasonic testing instrument providing superior features for onsite testing. The ultrasonic pulse velocity test 359 mean pulse velocity and mean strength obtained from each set of three nominally identical test specimens provide the data to construct the calibration curve. But first, lets see why concrete cracks, and why crack depth measurement in concrete matters. Use the uk1401 to measure the compression wave pwave velocity of the test area. Ultrasonic pulse velocity test of concrete properties as. Nondestructive testing ultrasonic examination basic principles of sound propagation and reflection in materials basics of ultrasonic testing procedures ultrasonic testing of a steel.

Standard test method for laboratory determination of pulse. The transit time t12 of an ultrasonic signal traveling with. This occurs because these methods do not affect the appearance and the performance of the analyzed structures. Linear ultrasonic test using ultrasonic pulse velocity upv. Ultrasonic pulse velocity in concrete using direct and. Ultra sonic pulse velocity test on a pier duration. An ultrasonic pulse velocity test may help determine the modulus or strength of the material, and make sure that the concrete is still able to conform to specified regulations and standard requirements.

The procedure of ultrasonic testing for the compressive strength of concrete. Ultrasonic pulse velocity upv measurements seem to be a quite effective way to perform quality control, since this reliable and flexible test method allows an indepth analysis of the materials. Each section covers a specific subject, basic knowledge, 0degree scanning, angled scanning. The method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. The method consists of measuring the ultrasonic pulse velocity through the concrete with a generator and a receiver. Ultrasonic test inspection free ndt sample procedures. Ultrasonic testing is now widely used throughout the world and it is clear that the advantages of this method over traditional methods of testing are likely to increase further its application. To check the quality and strength of insitu concrete in structural members, ultrasonic pulse velocity test is most recommended. Part 203, is the only one of this type that shows potential for testing concrete strength insitu. By knowing the velocity and the crosssectional area, uncorrected volume can be computed.

Ultrasonic pulse velocity upv en 125044a rebound hardness test. Direct calculation of the emodulus on the instrument measure p and swave velocities on the same screen dual cursor poissons ratio also calculated on pllink software area scan. Procedure to determine strength of hardened concrete by ultrasonic pulse velocity. If the data about factors influencing pulse velocity as stated above is not available, then, the assessment of compressive strength will have limitations. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. It specifies a method for the determination of the velocity of propagation of pulses of ultrasonic longitudinal waves in concrete. Modified asr test astm c 1260 method with weight, volume changes and ultrasonic pulse velocity siva vinay moturi and c. The pundit lab is an ultrasonic pulse velocity upv test instrument which is used to examine the quality of concrete. Ultrasonic pulse velocity analysis in concrete specimens. If the data about factors influencing pulse velocity as stated above is not available, then, the assessment of.

Review of the ultrasonic pulse velocity evaluating concrete. Plug the shear wave velocity swave into the a1220 monolith, based on the measured pwave velocity. Apr, 2017 ultrasonic testing of concrete is an effective way for quality assessment and uniformity, and crack depth estimation. Pulse velocity measurement crack depth measurement. In addition to physical deterioration of the concrete structure is also access by upv test. Ultrasonic testing consists of measuring the travel time of an ultrasonic pulse or wave of 25 to 60 khz.

Because the velocity of the pulses is almost independent of the geometry of the material through which they pass and depends only on its elastic properties, pulse velocity method is a convenient technique for investigating structural concrete. That is, they measure the velocity of the gas within the meter body. This test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. In this test, the strength and quality of concrete or rock is assessed by measuring the velocity of an ultrasonic pulse passing through a concrete structure or natural rock formation. Ultrasonic pulse velocity method civil engineering. Ndt, ultrasonic pulse velocity test assessment, procedure and.

Keywords direct, indirect, semidirect, ultrasonic waves, velocity. Common structures are assessed with the use of practical and easy application of ultrasonic pulse velocity upv. M chandra kishen 2,b 1department of civil engineering, indian institute of technology kharagpur, kharagpur, india 2department of civil engineering, indian institute of science, bangalore 560012, india asrikalyan. Application of ultrasonic pulse velocity to detect concrete flaws. Application of the combined method for evaluating the. Aktan the relationship between velocities ofultrasonic stress waves trans mitted along direcr and indirect paths was investigated. Not all forms of deterioration or damage actually change the pulse velocity of the material, but they affect the actual path for the pulse to travel from transmitter to recei. Centre for innovative grouting materials and technology cigmat department of civil and environmental engineering university of houston, houston, tx, 772044003. A pulse of longitudinal vibrations is produced by an electroacoustical transducer held in contact with one surface of the concrete under test. A crack is a linear fracture in concrete which extends partly or completely through the member.

Pundit pl200 pulse echo transducer ultrasonic testing. Detection of concrete damage using ultrasonic pulse. After traversing a known path length l in the concrete, the. Linear ultrasonic test using ultrasonic pulse velocity upv an. Single or continuous acquisition mode with automatic or manual saving. Insofar as we are primarily interested in the evaluation of the strength of concrete onsite. Both compressive strength and upv are very low for all the levels of mineral admixture at an early age curing, especially for samples containing high volume fa. Online full ut level i testing training our ut level i training is based on asnt and iso standards topical outlines. Pundit ultrasonic pulse velocity and pulse echo tomography. The elastic moduli are calculated from the velocity measurements. Ultrasonic pulse velocity in concrete using direct and indirect transmission by ismail ozgur yaman, gokhan inei, nazli yesiller, and haluk m. Grease is applied on the test surfaces the probes are pressed on the surface of the structural element to remove air gaps. The tests can be performed on samples in the labo ratory or onsite. Comparison between different methods of ultrasonic pulse.

Ultrasonic pulse velocity has been found to be a valuable and reliable method of detecting interior of concrete member in truly a non destructive way. Ultrasonic pulse velocity test is used to evaluate the material properties, to detect defects on. Ultrasonic pulse velocity measurement, a nondestructive method, could be such a method. What is ultrasonic testing of concrete for compressive strength. Nondestructive testing of concrete methods of test. Pundit pl200 pulse echo transducer ultrasonic pulse velocity upv test instrument to examine the quality of concrete to en125044, astm c 59702, bs 1881 part 203, iso19207.

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