Ultrasonic pulse velocity tester nondestructive concrete. Ultrasonic pulse velocity uspv test has gained considerable popularity all over the world. Detection of concrete damage using ultrasonic pulse. Insofar as we are primarily interested in the evaluation of the strength of concrete onsite. Changes in the structure of the concrete which may occur with time, 4. 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. Pdf ultrasonic pulse velocity in concrete using direct. Discussion advantages and disadvantages of the ultrasonic pulse velocity test. Notably, it is a referred, highly indexed, online international journal with high impact factor. 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 testing, mainly used to measure the sound velocity of the concrete and hence the compressive strength of the concrete. The ultrasonic pulse velocity tester systems by olson instruments are designed to identify map voids, honeycomb, cracks, and other damage in concrete, wood, masonry, stone, ceramics, and metal materials.
The tests were conducted at 28 stations along the dam. The presence of cracks,voids and other imperfections, 3. 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. Dec 08, 2014 ultrasonic pulse velocity test for concrete slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
An experimental study is conducted to compare direct, indirect and semidirect ultrasonic pulse velocity upv measurements on a total of 30 concrete blocks 30. Ultrasonic pulse velocity in concrete using direct and. Ultrasonic testing is known as ut or ultrasonic pulse velocity test or upv test. What is curing of concrete and different methods of curing electronic timing device.
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. Non destructive testing of concrete structures rebound. Thus, for different mix proportions, a different relation between strength and pulse velocity would be obtained. Cube test specimens were made of concrete with watercement ratio of 0. Pulse velocity determination specified in all standards is based on the same principle. Study of concrete quality assessment of structural. This test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. How many times as a civil engineer, you have to test a concrete. Nondestructive testing of concrete methods of test. This method was used to assess the pulse velocity of mortars and compared them to the destructive method results.
Ultrasonic testing is one of the nondestructive test method based on the transmission of the ultrasonic pulse in the component or materials like concrete, steel, etc. Comparison between different methods of ultrasonic pulse. Ultrasonic pulse velocity upv testing can play an important role in this area, since they allow us to monitor the density and homogeneity of the material, providing information. Ultrasonic pulse velocity ultrasonic concrete tester. Compressive strength formula for concrete using ultrasonic. At the colorado and pennsylvania sites, only one type of surface infiltration test was made. Ultrasonic pulse velocity test is used to evaluate the material properties, to detect defects on the concrete structures. Ultrasonic pulse velocity test on concrete civiconcepts. Ultrasonic pulse velocity tester at best price in india. Ultrasonic testing uses high frequency greater than 20,000 hz sound waves to characterize the properties of materials or detect their defects. Common structures are assessed with the use of practical and easy application of ultrasonic pulse velocity upv.
Pulse velocity in concrete will be demonstrated with. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Among these methods, ultrasonic testing plays an important role with its convenience of use and reasonable cost. It is generally accepted that the use of ultrasonic methods for assessment of concrete suffers many disadvantages, particularly where a strength estimation is. The test procedure has been standardized as standard test method for pulse velocity through concrete astm c 597, 2016. Standard test method for pulse velocity through concrete. Pundit pl200 and pundit pl200pe are bestinclass nondestructive testing instruments for. Concrete material consist of two separate constitutes i.
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. Pundit ultrasonic pulse velocity and pulse echo tomography. Principle of test the method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. Rebound value r concrete strength 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. Explain in detail the ultrasonic pulse velocity method of non destructive test of concrete. Focusing on it, the ultrasonic tests allow to estimate a correlation between the variables and the compressive strength. Traditionally these tests are said to be as the nondestructive test although some minor damage to the structure may be involved. Ultrasonic testing of concrete or ultrasonic pulse velocity test on concrete is a nondestructive test to assess the homogeneity and integrity of with this ultrasonic test on concrete, following can be assessed. During this test, measuring the speed of ultrasound pulses, which pass through a concrete structure or natural rock formation, assesses the strength and quality of concrete or rock.
A series of tests were performed to examine the relationship between water content and upv of concrete with different aggregate mixture proportions. Dynamic modulus, impulse load test, ultrasonic pulse velocity test, finite element methods, lateral strains concrete is used in most civil engineering structures and therefore requires certain performance characteristics such as quality, workability and economy. Impact echo method, pulse echo method and pulse velocity method 1. Ultrasonic pulse velocity upv en 125044a rebound hardness test. A total of 15 cubic samples with 150 x 150 x 150 mm dimensions were tested to determine compressive strength and ultrasonic pulse velocity of concrete samples. Aiming to understand how some parameters influence the upv, this work studied different concrete types, with different characteristics, manufactured with portland cement and. Which factors affects ultrasonic pulse velocity in concrete.
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. The ultrasonic pulse velocity method has been used successfully to evaluate the quality of concrete for more than 60 years. Proceq pundit offers the most versatile range of ultrasonic testing instruments that are ergonomic and portable.
Ultrasonic testing of concrete is an effective way for quality assessment and uniformity, and crack depth estimation. Aktan the relationship between velocities ofultrasonic stress waves trans mitted along direcr and indirect paths was investigated. It has been demonstrated that sf increases the strength of. Ultrasonic pulse velocity upv test method is used in this study for evaluating the compressive strength of concrete.
Ultrasonic pulse velocity upv is an effective nondestructive testing ndt method for quality control of concrete materials, and detecting damages in structural components. 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. Visual inspection documented cracking and surface raveling, as. This method is not so authentic to determine the qualitystrength of concrete. For pricing and product info, give us a call today. The pulse is generated by a transmitter and received by a receiver. 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. Pundit vision roll hardness testers schmidt rebound hammers. 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. Equipment the principle of ultrasonic pulse velocity.
Review of the ultrasonic pulse velocity evaluating concrete compressive strength on site samia hannachi department of civil engineering university of constantine constantine, algeria samia. It is shown that, despite the common basis of the measurement of ultrasonic longitudinal wave velocity, there are differences among the procedures as. Review of the ultrasonic pulse velocity evaluating. 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 of steel and synthetic fiber. Apr 21, 2018 explain in detail the ultrasonic pulse velocity method of non destructive test of concrete. Featuring consider the cure part 2, structural integrity with impact echo and ultrasonic pulse velocity, and mn state mankatos pedestrian tunnel. It is well known that there are several factors which can. In this paper, water content and temperature effect on the ultrasonic pulse velocity upv of concrete was investigated. Application of ultrasonic pulse velocity to detect. 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.
The method consists of measuring the ultrasonic pulse velocity through the concrete with a generator and a receiver. 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. But strength cannot be measured because nondestructive tests are relative in. The ultrasonic equipment used in this study for the. This upv test is carried out by passing the ultrasonic pulse through concrete and measuring the time taken by the pulse to get through the concrete. In addition to physical deterioration of the concrete structure is also access by upv test. Astm c 597 83 standard test method for pulse velocity through concrete. Ultrasonic pulse velocityecho testing of concrete, rock. There are mainly three ways of non destructive testing using ultrasonic techniques viz.
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. Correlation between pulse velocity and compressive strength. The test which is carried out on the site on the existing structural member of concrete. Pulse velocity is estimated in concrete with the arrangement of transducers in planes perpendicular to each other. It was reported that upv of specimens decreased with the increase of pvc fibres content fig. The underlying principle of this test is the method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete.
Evaluating inplace compressive strength of concrete by employing nondestructive testing method is a cardinal approach to assess concrete strength in present condition. Ultrasonic pulse velocity upv test is a nondestructive popular test used to examine the homogeneity, quality, cracks, cavities, and defects in concrete. Why we use non destructive test over cube compression test. Ultrasonic pulse velocity upv testing is used to determine the integrity of structural concrete by measuring the speed and attenuation of an ultrasonic wave passing along a specific test path in the element being tested. The quality of the concrete in relation to standard. An ultrasonic pulse velocity upv test is often applied to determine the quality of concrete structures. The investigations aimed at developing a method of combined use of both the nondestructive tests for assessment of strength of concrete with greater accuracy. Pundit pd8000, the wireless inspection solution with multichannel ultrasonic pulse echo technology, brings on site structural concrete assessment and imaging to the next level when it comes to pragmatism and productivity. If material is poor and have voids or crack, gives the low pulse velocity otherwise it gives high velocity. The velocity of a pulse of ultrasonic energy in concrete is influenced by the elastic stiffness and mechanical strength of the concrete. 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. Ultrasonic pulse velocity upv testing can play an important role in this area, since they allow us to monitor the density and homogeneity of the material, providing information about the strength evolution and about the existence of. Ultrasonic pulse velocity method of non destructive test.
Nondestructive test has been applied to measure damage in structures. Experimental study on ultrasonic pulse velocity evaluation. 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. Ultrasonic pulse velocity tester is used to measure the velocity of propagation of ultrasonic pulses through concrete. It is better if similar concrete at the same time be tested with one more nondestructive test method, such as concrete test hammer etc. Application of the combined method for evaluating the. This method can be used for detecting internal cracking and other defects as well as changes in concrete such as deterioration due to aggressive chemical environment and freezing and thawing. Ultrasonic pulse velocity test of concrete properties as specified in.
The effects of mineral admixture on the pulse velocity of the mortar are also determined. Evaluation of cracks in concrete by ultrasonic pulse velocity. Ultrasonic pulse velocity in concrete using direct and indirect transmission by ismail ozgur yaman, gokhan inei, nazli yesiller, and haluk m. Ultrasonic pulse velocity method civil engineering.
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. Aet covers air emissions testing tips and more in each newsletter, plus project coverage in the brooklyn park, mn area. May 15, 2017 technique namely ultrasonic pulse velocity is implemented for the evaluation of the cracks and their effects on the nature and strength of concrete. These test methods can also be said as insitu tests or inplace tests. Investigation of lateral strains involved in ultrasonic. A series of upv tests were performed to evaluate the 28day compressive. It is particularly useful in checking the homegeneity, or otherwise, of.
Pdf ultrasonic pulse velocity analysis in concrete specimens. Application of ultrasonic pulse velocity to detect concrete flaws. The ultrasonic pulse velocity and compressive strength of three saturated surface dry ssd specimens were measured according to the specification of astm c 597 and astm c 39, respectively. The ultrasonic pulse echo upe technology extends ultrasonic pulse velocity upv applications to objects where access is restricted to a single side. Ultrasonic pulse velocity ndt test on concrete introduction ultrasonic pulse velocity test is an in situ, non destructive test. Ultrasonic pulse velocity testing of concrete is based on the pulse velocity method to provide information on the uniformity of concrete, cavities, cracks and defects. Ultrasonic pulse is generated by transducer, which undergoes in whole concrete and detected by receiver. This mathematical relationship was derived from the test results of more than 700 test samples.
Ultrasonic pulse velocity measurement, a nondestructive method, could be. Apr, 2017 ultrasonic testing of concrete is an effective way for quality assessment and uniformity, and crack depth estimation. A pulse of longitudinal vibrations is produced by an electroacoustical transducer held in contact with one surface of the concrete under test. The ultrasonic testing method is based on the use of equipment composed of transducers which produce and receive the ultrasonic wave of 0. Ultrasonic testing procedure for concrete structure. The experimental studies using ultrasonic pulse velocity and schmidt rebound hammer as nondestructive tests ndt were presented in this paper to establish a correlation between the compressive strengths of compression tests and ndt values. Compressive strength and ultrasound pulse velocity of mineral. If you continue browsing the site, you agree to the use of cookies on this website. Evaluation of engineering properties of rock using ultrasonic. In this test no structural member is affected so this is called non destructive test. International journal of science and research ijsr is published as a monthly journal with 12 issues per year.
Ultrasonic testing of concrete after exposure to high temperatures. An investigation of physicomechanical properties of some. 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. The instrument gives data concerning the homogeneity of the concrete, by generating pulses of sound into the concrete and measuring the time. Jun 07, 2018 this video animation, animated video explains the concept ultrasonic pulse velocity test for concrete. Using multiple test paths allows the size and rough shape of a defect area to be defined geometrically. Pdf prediction of concrete compressive strength using. Water content and temperature effect on ultrasonic pulse. However, the results of the upv test show the quality of concrete only, as the ultrasonic pulse velocity in concrete is affected by many other factors. Under certain specified conditions the velocity and strength of concrete are directly related. Whenever there is an accessibility issues while measuring through ultrasonic pulse velocity instrument, proceqs pulse echo will come in as a handy instrument.
Ultrasonic pulse velocity echo testing of concrete, rock, wood and ceramics with pundit pl200pe. Influence of test conditions the pulse velocity in concrete may be influenced by any or all of. The pulse velocity in a material depends on its density and. Correlation between pulse velocity and compressive strength of concrete 873 international journal of earth sciences and engineering issn 09745904, volume 04, no 06 spl, october 2011, pp 871874 for which the values of compressive strength ranges from 19 to 23 mpa, for m20 grade of concrete, the pulse velocity. 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 compressive strength will have limitations. The test results on ultrasonic pulse velocity and rebound indices are analysed statistically and plotted as histograms and the lower fractiles of results are taken for assessing the.
The tests can be performed on samples in the labo ratory or on site. Kurup and kumar 2017a evaluated the quality of concrete made with pvc fibres using upv tester. The validity of ultrasonic pulse velocity testing of inplace concrete. Civil engineering animated videos, civil engineerin. 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. Combined use of nondestructive tests for assessment of. The velocity of pulse is directly depends on the material and its homogeneity. Workmanship variables included different lengths of moist curing, incomplete compaction and intentionally induced flaws. In this method, the time required to travel of an ultrasonic pulse passing through the concrete is measured. 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. Application of ultrasonic pulse velocity techniques for. Ultrasonic pulse velocity test of concrete properties as. This instrument basically is dependent on the dynamic youngs modulus, density, poissons ratio of the material. Concrete, corrosion, nondestructive test, ultrasonic pulse velocity.
Assessing the strength of reinforced concrete structures through ultrasonic pulse velocity and schmidt rebound hammer tests article pdf available in scientific research and essays 61. Upv method involves measurement of the time of travel of. Sound waves are generated by transducers, travel through the. Ultrasonic pulse velocity upy test on concrete under compression. What is ultrasonic testing of concrete for compressive strength. Review of the ultrasonic pulse velocity evaluating concrete. The study of ultrasonic pulse velocity on plain and reinforced. Qualitative assessment of strength of concrete, its gradation in different locations of structural members and plotting the same.