NON DESTRUCTIVE TESTING OF CONCRETE BY UPV METHOD BY ER. KANTH MUZAMIL

1. NON-DESTRUCTIVE TESTING
OF CONCRETE BY UPV
METHOD
Presented by
MUZAMIL YOUSUF KANTH
USN: 1EP13CV115
Under the guidance of
KAVYA P GOWDA
Asst Professor,
Dept of Civil Engineering,
EPCET

2.  Need for testingNeed for testing
 Types of testingTypes of testing
 U P V Methods:U P V Methods:
Direct MethodDirect Method
Indirect MethodIndirect Method
Semi Direct MethodSemi Direct Method
ApplicationsApplications
Test ResultsTest Results
ConclusionConclusion
REFERENCESREFERENCES

3.  Proposed change of usage orProposed change of usage or
extension of a structure.extension of a structure.
 Monitoring long-term changes inMonitoring long-term changes in
material properties and structuralmaterial properties and structural
performance.performance.
 To check for the workmanship.To check for the workmanship.
 For remedial schemes and repairs.For remedial schemes and repairs.
 To check for design specification.To check for design specification.

4. The usual way of testing concrete is byThe usual way of testing concrete is by
means of casting cubes and thenmeans of casting cubes and then
crushing them.crushing them.
The quality of product in the field isThe quality of product in the field is
checked by non-destructive methodschecked by non-destructive methods..
The main advantage: determination ofThe main advantage: determination of
concrete properties without damage.concrete properties without damage.

5. INSPECTIONINSPECTION
SCHEDULESCHEDULE
METHODSMETHODS
First surveyFirst survey History of structureHistory of structure
Visual inspectionVisual inspection
Second surveySecond survey UltrasonicUltrasonic
Rebound hammerRebound hammer
Cover testCover test
Arrangement of barsArrangement of bars
Others (if necessary)Others (if necessary)
Third surveyThird survey Core testCore test
Vibration testVibration test
Displacement testDisplacement test

6. Fig 3: Serious crack at building
structure. Fig 4: Exposed bar
Fig 1: Serious cracks at bridge
structure
Fig 2: Watermark indicates leak

7. Fig: Heavy cracks and limes leaching at dam wall.

9. Contd/……

11. Portable Ultrasonic NondestructivePortable Ultrasonic Nondestructive
Digital Indicative Technique (PUNDIT)Digital Indicative Technique (PUNDIT)
Size: 180 X 110 X 160mmSize: 180 X 110 X 160mm
Weight 3kgWeight 3kg
Digital display with Accuracy ±0.1 microsecondsDigital display with Accuracy ±0.1 microseconds

12. Before the testing is carried outBefore the testing is carried out
on the actual structure, grease /on the actual structure, grease /
liquid soap / petroleum jelly mustliquid soap / petroleum jelly must
be provided between thebe provided between the
transducer and the concretetransducer and the concrete
surface to eliminate the airsurface to eliminate the air
pockets.pockets.

15. DIRECT TRANSMISSION OF
PULSE ACROSS R.C BEAM

17. INDIRECT TRANSMISSION OF PULSE
IN R.C.DECK

19. SEMI-DIRECT TRANSMISSION OF PULSE
IN R.C.DECK

21. To evaluate strength of concrete basedTo evaluate strength of concrete based
on the pulse velocity an appropriateon the pulse velocity an appropriate
calibration chart can be establishedcalibration chart can be established
based on the laboratory tests.based on the laboratory tests.
Pulse VelocityPulse Velocity
(km/sec)(km/sec)
Concrete QualityConcrete Quality
Grading (as per IS:13311Grading (as per IS:13311
(Part-1)-1992)(Part-1)-1992)
Below 3.0Below 3.0 DoubtfulDoubtful
3.1 to 3.53.1 to 3.5 MediumMedium
3.5 to 4.53.5 to 4.5 GoodGood
Above 4.5Above 4.5 ExcellentExcellent

23. 1.1. Measurement of concrete uniformityMeasurement of concrete uniformity
2. Detection of cracking and2. Detection of cracking and
honeycombing in in-situ concretehoneycombing in in-situ concrete
3. Strength estimation of in-situ3. Strength estimation of in-situ
concreteconcrete
4. Assessment of in-situ concrete4. Assessment of in-situ concrete
deteriorationdeterioration
5. Measurement of layer thickness in in-5. Measurement of layer thickness in in-
situ concretesitu concrete
6. Measurement of elastic modulus of6. Measurement of elastic modulus of
in-situ concretein-situ concrete

26. S/NO
Structural
Member
Identification
Time In
Micro
second
Path
Length
(mm)
Pulse
Velocity
(km/sec)
Avg Pulse
Vel
(km/sec)
Method
Of Test
1 Specimen 1 33 150 4.54 4.54 Direct
33 150 4.54
2 Specimen 2 34 150 4.4 4.4 Direct
34 150 4.4
3 Specimen 3 34 150 4.4 4.4 Direct
34 150 4.4
ULTRASONIC PULSE VELOCITY TEST
LABORATORY DATA SHEET

27. ULTRASONIC PULSE
VELOCITY DATA SHEET
S/NO Structural
Member
Identification
Time in
Micro
Second
Path
Length
(mm)
Pulse
Velocity
(Km/Sec)
Average
Pulse
Velocity
(Km/Sec)
Method
Of Test
1 Cube-1 33 150 4.54 4.54 Direct

28. Ultrasonic pulse velocityUltrasonic pulse velocity
measurement has been found to bemeasurement has been found to be
a valuable and reliable method ofa valuable and reliable method of
examining the interior of the bodyexamining the interior of the body
of concrete in a truly nonof concrete in a truly non
destructive manner .It is essentialdestructive manner .It is essential
that test results are properlythat test results are properly
evaluated and interpreted byevaluated and interpreted by
expert who are familiar with theexpert who are familiar with the
technique.technique.
CONCLUSION

29. 1) IS: 13311 (part 1) - 1992, “Methods of
non-destructive testing of concrete-
Ultrasonic pulse velocity”, BIS, New Delhi
2) Shetty M.S,(2002),”Concrete
Technology theory and practice”, S. Chand
and Company Ltd. Ramnagar, New Delhi.
3) Malhotra, V.M, (1986), “Testing Hardened
Concrete- Non Destructive Methods”, ACI
and IOWA State University Press, USA.
REFERENCES