Find here online price details of companies selling ultrasonic pulse velocity tester. Ultrasonic pulse velocity tester utest malzeme test cihazlar. Ultrasonic inspection uses high frequency sound waves as a probing medium to provideinformation as to the state of. Detection of concrete damage using ultrasonic pulse. The method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. The method is based on the propagation of a high frequency sound wave which passes through the material. Correlation between pulse velocity and compressive strength. Compressive strength formula for concrete using ultrasonic. Pundit pd8000, the wireless inspection solution with multichannel ultrasonic pulse echo technology, brings onsite structural concrete. Ultrasonic pulse velocity upv testing of concrete is based on the pulse. The velocity of a pulse of ultrasonic energy in concrete is influenced by the elastic stiffness and mechanical strength of the concrete. Ultrasonic pulse velocity test for concrete slideshare.
An experimental study is conducted to compare direct, indirect and semidirect ultrasonic pulse velocity upv measurements on a total of 30 concrete blocks 30. Surface velocity determines surface velocity according to bs 1881. The pundit 250 array is a modular phased array pulse echo instrument incorporating drypoint contact transducers. The pundit pl200pe employs stateoftheart pulse echo technology to extend the ultrasonic application to objects where access is restricted to a single side. The test procedure has been standardized as standard test method for pulse velocity through concrete astm c 597, 2016. It is the most widely used method because there is maximum pulse energy which is transmitted and received so this is. Pdf ultrasonic pulse velocity in concrete using direct. Knowing the distance between the two points, the velocity of the wave pulse can be determined. Ultrasonic pulse velocity test this test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. Ultrasonic testing ut uses high frequency sound energy to conduct examinations and make measurements. Ultrasonic wave propagation characteristics that can be used for these purposes are. Scratches or similar surface blemishes remaining on the transducer or wedge may give false. Improving nondestructive concrete strength tests using.
The pundit pl200pe employs stateoftheart pulse echo technology to extend the ultrasonic application to objects where access is. It features unique real time bscans as well as onsite cscans, pscans and volume scans. Water content and temperature effect on ultrasonic pulse velocity of. Introduction ultrasonic pulse velocity test is used to evaluate the material properties, to detect defects on the concrete structures. Compressive strength determines the compressive strength using ultrasonic pulse velocity correlation, or by using sonreb. 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. In this test method, the ultrasonic pulse is produced by the transducer which is held in contact. Ultrasonic pulse velocity test of concrete properties as. Pundit pl200 ultrasonic pulse velocity ordering information pundit pl200 part number. The apparatus for ultrasonic pulse velocity measurement consists of the following. What is ultrasonic testing of concrete for compressive strength. Assessment of strength properties of cemented paste. Akshay r manohar 1 sem mtechconstruction technology civil engineering dept.
Pundit touchscreen, 2 transducers 54 khz, 2 bnc cables 1. Comparatively higher velocity is obtained when concrete quality is good in terms of density, uniformity, homogeneity etc. Influence of test conditions the pulse velocity in concrete may be influenced by any or all of the following. Test report cur 69 of the tno the netherlands describes the method with which the concrete strength can be calculated using a combination of the rebound value of a schmidt hammer type n and the pulse velocity. Among the ndt methods, the ultrasonic pulse velocity upv has been one of the. Application of ultrasonic pulse velocity techniques for.
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. Water content and temperature effect on ultrasonic pulse velocity of concrete. A procedure for ultrasonic testing is outlined in astm c597 09. The method is also useful for estimating crack depth and direction, and determining the thickness. Ultrasonic pulse velocity in concrete using direct and indirect transmission. What is ultrasonic testing of concrete for compressive. Over 10 million scientific documents at your fingertips. Use the uk1401 to measure the compression wave pwave velocity of the test area. Introduction ultrasonic measurements are used in structural engineering to determine material properties, detect defects.
Pundit ultrasonic pulse velocity, ultrasonic pulse echo. Get info of suppliers, manufacturers, exporters, traders of ultrasonic pulse velocity tester for buying in india. Evaluation of engineering properties of rock using. Astm c597 16 standard test method for pulse velocity. To assess the quality of concrete by ultrasonic pulse velocity method as per is. Pdf application of ultrasonic pulse velocity to detect concrete flaws.
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. The equipment consists of two transducers, usually in the form of metal cylindrical heads, one of which is used to transmit an ultrasonic pulse and the other is a receiver. The concrete surface where probes are to be applied is cleaned properly. The presence of cracks,voids and other imperfections, 3. Pulse velocity calculates the pulse velocity of the material under test. Guidebook on nondestructive testing of concrete structures. The ucs of the test sample is calculated by the following formula. Ultrasonic inspection can be used for flaw detectionevaluation, dimensional measurements, material characterization, and more. Pulse velocity measurement crack depth measurement. This test method is applicable to assess the uniformity and relative quality of. The ultrasonic pulse velocity can be used to assess the quality and uniformity of the material. In one of the sensors, electronic pulses are generated and the time it takes for the pulse. 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.
The effects of binder type, binder dosage, water to cement ratio wc and fines content ultrasonic pulse velocity is 311 part 1. The principle of ultrasonic pulse velocity measurement involves sending a wave pulse into concrete and measuring the travel time for the pulse to propagate through the concrete. Reference blocks, instrument settings, and standardization instructions for the ultrasonic instrument are included in the individual ultrasonic inspection procedures. The maximum compressive strength and ultrasonic pulse velocity upv have been observed with the samples containing bfs. In these two different procedures, the upv values corresponding water content and. Nondestructive testing of concrete methods of test. The transparency measurements figure 3and 4 of longitudinal sound waves through a member. Following the nbr 8802 presents procedures in case of necessity of. This test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. If the data about factors influencing pulse velocity as stated above is not available, then, the assessment of compressive strength will have limitations. Ultrasonic pulse velocity test ndt on hardened concrete by by. Both compressive strength and upv are very low for all the levels of mineral admixture at an early age curing, especially for. In addition to physical deterioration of the concrete structure is also access by upv test. Correlation between pulse velocity and compressive.
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. Non destructive testing laboratory manual imam abdulrahman. 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. The test can also be used to evaluate the effectiveness of crack repair. The ultrasonic pulse velocity method could be used to establish. The ultrasonic equipment used in ultrasonic v inspection procedures described throughout this manual is listed in appendix b.
Ultrasonic pulse velocity is used to determine the crack depths in concrete. This mathematical relationship was derived from the. Plug the shear wave velocity swave into the a1220 monolith, based on the measured pwave velocity. Non destructive testing of structures linkedin slideshare.
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 receiver. Compressive strength and ultrasound pulse velocity of. Ultrasonic pulse velocity in concrete using direct and. A test procedure to determine indirect wave velocities was refined by defining the spacing of the transducers. Through transmission, pulse echo, angle beam, immersion, paut, tofd structure and qualification of a procedure, training, acceptance criteria calibration blocks, couplant marking on part, probe positioning, scanning pattern naming files, storing data sections test section 2.
The pulse is generated by a transmitter and received by a receiver. Records are documents that will give, at any time in the future, the following. Influence of test conditions the pulse velocity in concrete may be influenced by any. An ultrasonic pulse velocity upv test is an insitu, nondestructive test to check the quality of. Experimental evaluation of cracks in concrete by ultrasonic pulse velocity t sri kalyan 1, a and j. 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.
More recently, upv has been used to correlate physical and m. 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. It is the most widely used method because there is maximum pulse. Comparison between different methods of ultrasonic pulse. Pundit pl200 nondestructive testing equipment, ndt. Modified asr test astm c 1260 method with weight, volume. The test instrument consists of a means of producing and introducing a pulse into the concrete pulse generator and transmitter, a. Standard test method for pulse velocity through concrete ultrasonic test longitudinal stress. Pundit pl200 the new benchmark for ultrasonic pulse velocity testing bestinclass ultrasonic testing instrument providing superior features for onsite testing. Grease is applied on the test surfaces the probes are pressed on the surface of the structural element to remove air gaps. Ultrasonic testing is an indicative and other tests such as destructive testing must be conducted to find the structural and mechanical properties of the material. Ultrasonic testing of concrete fprimec solutions inc. The velocity of an ultrasonic pulse through a material is a function of the elastic modulus and concretenessdensity of the material. Utc3034 ultrasonic pulse velocity tester is a microprocessor incorporated equipment which can be connected to a pc through the rs 232 output.
Impact echo method, pulse echo method and pulse velocity method 1. Keywords direct, indirect, semidirect, ultrasonic waves, velocity. The transmitter and receiver are placed on the two opposite faces of the element to test. Apr, 2017 ultrasonic testing of concrete is an effective way for quality assessment and uniformity, and crack depth estimation. This mathematical relationship was derived from the test results of more than 700 test samples. Crack depth determines the depth of perpendicular cracks according to bs 1881. The quality of the concrete in relation to standard. Ultrasonic pulse velocity tests capstone consultants. Changes in the structure of the concrete which may occur with time, 4. The ultrasonic pulse velocity test upv is one of the popular methods which are used to obtain information about the interior of a concrete structure with two. Ndt methods are very important components of inspection procedures of.
Following, another test procedure was conducted to research the relationship. Astm c597 16 standard test method for pulse velocity through. What links here related changes upload file special pages permanent link page. Use the a1220 monolith to measure thickness, locate inclusions, or. Review of the ultrasonic pulse velocity evaluating.
Pdf ultrasonic pulse velocity in concrete using direct and. Legally binding document step out from the old to the newjawaharlal nehru invent a new india using knowledge. Ultrasonic pulse velocity tester at best price in india. The variation between the measured transit times of single test specimens should be within % of the mean value of the three measurements. To illustrate the general inspection principle, a typical pulseecho. Read time taken for the ultrasonic pulse from the instrument. So, this paper aims to study the feasibility of using the nondestructive ultrasonic pulse velocity to evaluate the bond attained at the interface surface between new and old concrete. 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.
Use the a1220 monolith to measure thickness, locate inclusions, or detect flaws in the concrete. In addition, influence of test conditions and some general guidance on the interpretation of test results are also given. A pair of piezoelectric sensors is placed at opposite ends of the test member. Pdf ultrasonic pulse velocity analysis in concrete specimens. Ultrasonic pulse velocity method civil engineering. In the present study, ultrasonic pulse velocity upv was evaluated as a nondestructive, lowcost and practical method for the estimation of cpb strength. Detection of concrete damage nde2006 303 the above materials were inserted in the concrete at the time of casting.
Ultrasonic pulse velocity testing, mainly used to measure the sound velocity of the. Ultrasonic pulse velocity test it measures the time of travel of an ultrasonic pulse passing through the concrete. Detection of concrete damage using ultrasonic pulse velocity. Method of nondestructive testing of concret, part 1. Ultrasonic pulse velocity upv testing can play an important role in this area, since. Evaluation of engineering properties of rock using ultrasonic. Ultrasonic pulse velocity tester utest malzeme test. Review of the ultrasonic pulse velocity evaluating concrete. It can also be connected to an oscilloscope and can perform transit time measurement from 0. The application of nondestructive testing methods ndt may be an. Analysis of reinforced concrete structures through the ultrasonic. 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. Pdf ultrasonic pulse velocity evaluation of cementitious materials. Some work in previous literature made use of the ultrasonic pulse velocity upv of concrete to.
851 1205 1198 91 792 1448 571 1556 1204 646 605 996 344 598 962 556 1478 1280 499 291 1102 17 1388 871 201 526 685 458 305 107 935 791 886 776 675 80 838 1403 916