Review of the ultrasonic pulse velocity evaluating. This method was used to assess the pulse velocity of mortars and compared them to the destructive method results. 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. Review of the ultrasonic pulse velocity evaluating concrete. Review of the ultrasonic pulse velocity evaluating concrete compressive strength on site samia hannachi department of civil engineering university of constantine constantine, algeria samia. Ultrasonic pulse velocity test on concrete civiconcepts. 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.
Linear ultrasonic test using ultrasonic pulse velocity upv and rebound hammer was introduced to test on site strength of concrete 21. It is better if similar concrete at the same time be tested with one more nondestructive test method, such as concrete test hammer etc. Equipment, which is ultra sonic pulse velocity test and to study the quality of the concrete in existing structures. Three different arrangements of transmitters and receivers were studied to cover the varieties of problems.
Ultrasonic pulse velocity in concrete using direct and indirect transmission by ismail ozgur yaman, gokhan inei, nazli yesiller, and haluk m. It features unique real time bscans as well as onsite cscans, pscans and volume scans. What is ultrasonic testing of concrete for compressive strength. Ultrasonic pulse velocity, concrete, fire, residual strength. Jun 07, 2018 this video animation, animated video explains the concept ultrasonic pulse velocity test for concrete. Apr 21, 2018 explain in detail the ultrasonic pulse velocity method of non destructive test of concrete.
Experimental evaluation of cracks in concrete by ultrasonic pulse velocity t sri kalyan 1, a and j. Evaluation of engineering properties of rock using ultrasonic. The effects of mineral admixture on the pulse velocity of the mortar are also determined. 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. 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. Pulse velocity in concrete will be demonstrated with. Ultrasonic pulse velocity cifra marketing corporation. 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. Combined use of nondestructive tests for assessment of. Ultrasonic pulse velocity tester with microprocessor. 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.
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. In this method, the time required to travel of an ultrasonic pulse passing through the concrete is measured. Ultrasonic pulse velocity evaluation of cementitious materials 421 ikpong 1993 stated that the introduction of a pozzolanic material into concrete affect both. Application of ultrasonic pulse velocity techniques for. Pundit ultrasonic pulse velocity and pulse echo tomography. Ultrasonic pulse velocity tester testing equipment concrete. Get info of suppliers, manufacturers, exporters, traders of ultrasonic pulse velocity tester for buying in india. However, moisture influence on the upv is defined within a wide range. 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. Also they concluded that pulse velocity at 7 and 28 days can be easily. Principle of test the method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. Ultrasonic pulse velocity and rebound hammer studies on. The ultrasonic pulse velocity upv in watersaturated concrete is higher than in dry concrete. They discussed the upv test conducted at early age of one day to confirm the quality of concrete.
In this study, pulse velocities calculated from the time taken by pulses emitted by a transducer to traverse a known thickness of the concrete is utilized in building up a correlation between pulse velocity and strength of concrete cubes and between pulse velocity and age of concrete. A series of tests were performed to examine the relationship between water content and upv of concrete with different aggregate mixture proportions. Laboratory manual imam abdulrahman bin faisal university. If the data about factors influencing pulse velocity as stated above is not available, then, the assessment of compressive strength will have limitations.
It can also be utilised for the long term monitoring of structures subject to environmental conditions. Ultrasonic pulse velocity in concrete using direct and. Abstractultrasonic pulse velocity test is one of the best known techniques which can be used for the measurement of concrete uniformity, its elastic modulus. 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. Explain in detail the ultrasonic pulse velocity method of non destructive test of concrete. The dilatational or pwave speed in concrete is needed in impactecho testing if the dimensions of the structural. This test is done to assess the quality of concrete by ultrasonic pulse velocity method as per is. Experimental evaluation of cracks in concrete by ultrasonic. The impact bolt of concrete test hammer hit the surface of specimen with a defined force. In addition to physical deterioration of the concrete structure is also access by upv test. Ultrasonic pulse velocity method civil engineering. Concrete ultrasonic testing equipment ultrasonic pulse. 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. The investigations aimed at developing a method of combined use of both the nondestructive tests for assessment of strength of concrete with greater accuracy.
Find here online price details of companies selling ultrasonic pulse velocity tester. 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. 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. A pulse of longitudinal vibrations is produced by an electroacoustical transducer held in contact with one surface of the concrete under test. Evaluation of cracks in concrete by ultrasonic pulse velocity. Aktan the relationship between velocities ofultrasonic stress waves trans mitted along direcr and indirect paths was investigated. A graph showing the variation of compressive strength mpa with calculated pulse velocity kms from experimental data 5. 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. This method is not so authentic to determine the qualitystrength of concrete. Concrete, corrosion, nondestructive test, ultrasonic pulse velocity. Compressive strength formula for concrete using ultrasonic.
The velocity of a pulse of ultrasonic energy in concrete is influenced by the elastic stiffness and mechanical strength of the concrete. Ultra sonic pulse velocity test on a pier duration. Correlation between pulse velocity and compressive strength. It has been demonstrated that sf increases the strength of. Ultrasonic pulse velocity tester is used to measure the velocity of propagation of ultrasonic pulses through concrete. Pulse velocity is estimated in concrete with the arrangement of transducers in planes perpendicular to each other. It specifies a method for the determination of the velocity of propagation of pulses of ultrasonic longitudinal waves in concrete. Pdf ultrasonic pulse velocity in concrete using direct. Ultrasonic pulse velocity test it measures the time of travel of an ultrasonic pulse passing through the concrete. Summary of estimated concrete properties using ultrasonic pulse velocity also the compressive strength of the samples is estimated from the plot represented in fig 3. 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. Higher velocities indicate good quality and continuity of the material, while slower velocities may indicate concrete with many cracks or voids. Strength assessment of recycled aggregate concrete by ultrasonic.
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. Comparison between different methods of ultrasonic pulse. The test procedure has been standardized as standard test method for pulse velocity through concrete astm c 597, 2016. Common structures are assessed with the use of practical and easy application of ultrasonic pulse velocity upv. It was reported that upv of specimens decreased with the increase of pvc fibres content fig. Utc3050 is an ultrasonic pulse velocity test instrument which is used to examine the quality of concrete. Open access journal page 64 typical situations where nondestructive testing may be useful are, as follows. The statistical analysis revealed that direct and indirect wave velocities could be used interchangeably to evaluate properties of the concrete. Ultrasonic testing is conducted by passing a pulse of ultrasonic waves through the concrete to be tested and measuring the time taken by the pulse to get through the structure. Apr, 2017 ultrasonic testing of concrete is an effective way for quality assessment and uniformity, and crack depth estimation. The minimum number of test points required for a reliable estimate of indirect wave velocity was studied, and recommendations are provided. Ultrasonic pulse velocity, which is the most commonly used nondestructive test method, depends on aggregate characteristics, hydration rate, watercement ratio. Refer to astm d 2845 standard test method for laboratory determination of pulse velocities and ultrasonic elastic constants of rock. Pdf study of concrete quality assessment of structural.
An ultrasonic pulse velocity upv test is an insitu, nondestructive test to check the quality of concrete and natural rocks. 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. Quality control of precast units or construction in situ. Nondestructive testing of concrete methods of test. Ultrasonic pulse velocityecho testing of concrete, rock. Aiming to understand how some parameters influence the upv, this work studied different concrete types, with different characteristics, manufactured with portland cement and. Equipment the principle of ultrasonic pulse velocity. This video animation, animated video explains the concept ultrasonic pulse velocity test for concrete. Ultrasonic pulse velocity echo testing of concrete, rock, wood and ceramics with pundit pl200pe. Standard test method for pulse velocity through concrete.
This unit is used to determine the presence of faults, voids, cracks etc. Ultrasonic pulse velocity tester nondestructive concrete. Pulse velocity determination specified in all standards is based on the same principle. Ultrasonic pulse velocity uspv test has gained considerable popularity all over the world. Nondestructive test has been applied to measure damage in structures. Study of concrete quality assessment of structural. Ultrasonic pulse velocity testing of concrete is based on the pulse velocity method to provide information on the uniformity of concrete, cavities, cracks.
Used to measure ultrasonic pulse velocity upv in concrete for non destructive evaluation nde. The test which is carried out on the site on the existing structural member of concrete. In the experiment, a concrete compressive strength estimation equation was proposed by applying the ultrasonic pulse velocity method, one of. 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. Civil engineering animated videos, civil engineerin. Ultrasonic testing is known as ut or ultrasonic pulse velocity test or upv test. 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.
Evaluation of condition of concrete structures using. In this paper, water content and temperature effect on the ultrasonic pulse velocity upv of concrete was investigated. Ultrasonic testing procedure for concrete structure. 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. 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. This laboratory manual of nondestructive testing for concrete structure will be used in. Ultrasonic pulse velocity test of concrete properties as.
Workmanship variables included different lengths of moist curing, incomplete compaction and intentionally induced flaws. The apparatus for ultrasonic pulse velocity measurement consists of the following. Pdf ultrasonic pulse velocity evaluation of cementitious. Manufacturer of concrete ultrasonic testing equipment ultrasonic pulse velocity equipment, ultrasonic pulse velocity tester offered by canopus instruments, mumbai, maharashtra. 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 tester at best price in india. Pundit pd8000, the wireless inspection solution with multichannel ultrasonic pulse echo technology, brings onsite structural concrete. Water content and temperature effect on ultrasonic pulse. Ultrasonic pulse velocity method of non destructive test of. Ultrasonic pulse velocity in concrete using direct and indirect transmission. 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. Analysis of reinforced concrete structures through the ultrasonic. 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. Cube test specimens were made of concrete with watercement ratio of 0.
This mathematical relationship was derived from the test results of more than 700 test samples. 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. Note in view of the limitations of each method of nondestructive testing of concrete, it is essen. The instrument gives data concerning the homogeneity of the concrete, by generating pulses of sound into the concrete and measuring the time. Astm c 597 83 standard test method for pulse velocity through concrete. Combination of ultrasonic pulse velocity upv and ultrasonic pulse amplitude upa was formulated to predict the. Compressive strength and ultrasound pulse velocity of mineral. Moisture effect on the ultrasonic pulse velocity in. 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. In this test no structural member is affected so this is called non destructive test.
Ultrasound auscultation sonic or ultrasonic pulse velocity upv the impactecho. Thus, for different mix proportions, a different relation between strength and pulse velocity would be obtained. Ultrasonic pulse velocity test is used to evaluate the material properties, to detect defects on the concrete structures. Investigation of relationships between ultrasonic pulse velocity. The pundit 250 array is a modular phased array pulse echo instrument incorporating drypoint contact transducers. If you continue browsing the site, you agree to the use of cookies on this website. These ultra sonic pulse velocity tests were then used to test the quality of the concrete of the various structural elements columns and beams of single storied newly under constructed office building. Focusing on it, the ultrasonic tests allow to estimate a correlation between the variables and the compressive strength. Influence of test conditions the pulse velocity in concrete may be influenced by any or all of. Different acoustic technics used in nondestructive testing for nondestructive testing of concrete cnd, methods based on the propagation of mechanical waves frequently called acoustic waves, the most used are. 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.
The ultrasonic equipment used in this study for the. Ultrasonic pulse velocity analysis in concrete specimens. From references, there were a lot of linear ultrasonic testing procedures in concrete. It also allows nonstandard transducers up to 500 khz to be used with pundit lab. Concrete material consist of two separate constitutes i. In addition, influence of test conditions and some general guidance on the interpretation of test results are also given.
Estimating the quality of concrete bridge girder using ultrasonic pulse velocity test. Dec 08, 2014 ultrasonic pulse velocity test for concrete slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 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. Kurup and kumar 2017a evaluated the quality of concrete made with pvc fibres using upv tester. Ultrasonic pulse velocity test procedure concrete test. The authors concluded that the pulse velocity increases with increase in volume fraction by about 50ms to 100ms compared to unreinforced matrix. Ultrasonic pulse velocity for in situ measurement of. 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 testing bestinclass ultrasonic testing instrument providing superior features for onsite testing.
The ultrasonic pulse velocity method has been used successfully to evaluate the quality of concrete for more than 60 years. Application of ultrasonic pulse velocity to detect. Ultrasonic testing equipment for concrete humboldt mfg. Ultrasonic pulse velocity method of non destructive test. Guidebook on nondestructive testing of concrete structures. 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. Estimating the quality of concrete bridge girder using.
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