Get info of suppliers, manufacturers, exporters, traders of ultrasonic pulse velocity tester for buying in india. Comparatively higher velocity is obtained when concrete quality is good in terms of density, uniformity, homogeneity etc. 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. Ultrasonic pulse velocity in concrete using direct and indirect transmission by ismail ozgur yaman, gokhan inei, nazli yesiller, and haluk m. Using piezoelectric sensors for ultrasonic pulse velocity. A test procedure, used to determine indirect wave velocities, was refined by defining the number and spacing of transducers.
Find here online price details of companies selling ultrasonic pulse velocity tester. Review of the ultrasonic pulse velocity evaluating. How many times as a civil engineer, you have to test a concrete. Ultrasonic testing of concrete is an effective way for quality assessment and uniformity, and crack depth estimation. 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. This paper investigates the use of upv test in combination with compressive strength test in order to lower the uncertainty of the latter. In addition, influence of test conditions and some general guidance on the. Standard test method for pulse velocity through concrete. Scratches or similar surface blemishes remaining on the transducer or wedge may give false. The ultrasonic pulse velocity upv test is a widely used ndt method for concrete structures. Ultrasonic pulse velocity method of non destructive test. Ndt procedure for ultrasonic inspection a nondestructive testing ndt procedure suitable for general.
Pundit pl200 pulse echo transducer ultrasonic testing. Ultrasonic pulse velocity test is used to evaluate the material properties, to detect defects on. Comparison between different methods of ultrasonic pulse. Scribd is the worlds largest social reading and publishing site. The ultrasonic pulse velocity test is performed on concrete to asses the quality of concrete by passing ultrasonic pulse velocity through it as per is. Application of ultrasonic pulse velocity techniques for. While the test procedure is now well standardized, interpretation of the results is. 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.
Ultrasonic pulse velocity test it measures the time of travel of an ultrasonic pulse. This test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. Pulseecho ultrasonic test method that utilizes reflected sound as a means of collecting test data. Guidebook on nondestructive testing of concrete structures. Ultrasonic pulse velocity tester at best price in india. Cube test specimens were made of concrete with watercement ratio of 0.
Felice abstract ultrasonic testing, or crosshole logging csl, has become the primary means for judging the integrity of bored piles and barrettes. A series of tests were performed to examine the relationship between water content and upv of concrete with different aggregate mixture proportions. 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. If you continue browsing the site, you agree to the use of cookies on this website. Tests were performed to compare the accuracy between direct method and indirect method of ultrasonic pulse velocity method upv in detecting the location of defects and determining its depth during the early age concrete. Tests were performed to compare the accuracy between the rebound hammer and the ultrasonic pulse velocity methodin estimating the strength of concrete. In addition, influence of test conditions and some general guidance on the interpretation of test results are also given. Explain in detail the ultrasonic pulse velocity method of non destructive test of concrete. What is curing of concrete and different methods of curing electronic timing device. In this method, the time required to travel of an ultrasonic pulse passing through the concrete is measured. Abstract the aim of the present paper is to check the accuracy of ultrasonic pulse velocity upv and rebound hammer for assessing concrete strength that are widely used in structural field. Combination of compressive strength test and ultrasonic. Ultrasonic test inspection free ndt sample procedures. Insofar as we are primarily interested in the evaluation of the strength of concrete onsite.
Ultrasonic tomography technique for evaluation concrete pavements please cite as follows. The uniaxial compressive strength ucs and tensile strength data can be used to calculate brittleness, which is one of the important engineering properties of rock 3. Pundit pl200 the new benchmark for ultrasonic pulse velocity testing bestinclass ultrasonic testing instrument providing superior features for onsite testing. Comparison between different methods of ultrasonic pulse velocity tests on concrete k. In this test no structural member is affected so this is called non destructive test. Commonly called the ultrasonic pulse velocity upv is a comprehensive method, which. Knowing the distance between the two points, the velocity of the wave pulse can be determined. Eighty samples cubes of 150 x 150 x 150 wereprepared using two mix designs of 1. Ppt ultrasonic testing powerpoint presentation free to. Nondestructive testing of concrete methods of test. Ultrasonic inspection uses high frequency sound waves as a probing medium to provideinformation as to the state of. Assessing the strength of reinforced concrete structures through ultrasonic pulse velocity and schmidt rebound hammer tests.
To assess the quality of concrete by ultrasonic pulse velocity method as per is. A test procedure, described in bs 1881 to determine indirect wave velocities, was refined. Pdf ultrasonic pulse velocity in concrete using direct. Ultrasonic testing of a steel cylinder in the laboratory. Ultrasonic pulse velocity test on concrete civiconcepts. Discussion advantages and disadvantages of the ultrasonic pulse velocity test. Ultrasonic pulse velocity test of concrete properties as. The electronic timing device is capable of measuring the time travel of pulse at the transmitting transducer and the onset of its arrival at the receiving transducer. What is ultrasonic testing of concrete for compressive. An ebook reader can be a software application for use on a computer such as microsofts free reader application, or a booksized computer this is used solely as a reading device such as nuvomedias rocket ebook. This work presents a study on the comparison between some nondestructive testing techniques rebound hammer and ultrasonic pulse velocity. The method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. Ultrasonic pulse velocity in concrete using direct and indirect transmission. 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.
The measured p wave velocity can be correlated to the mechanical properties of concrete or used to detect cracks and voids in concrete material. Evaluation of engineering properties of rock using. The test procedure has been standardized as standard test method for pulse velocity through concrete astm c 597, 2016. 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. Ultrasonic pulse velocity in concrete using direct and. Ultrasonic pulse velocity method civil engineering. Acceptance criteria for bored piles by ultrasonic testing joram m. Ultra sonic pulse velocity test on a pier duration. This method is based on measuring the p wave velocity in concrete. 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. For testing, smooth, clean and dry surface is to be selected.
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