Methods for Evaluating and Treating ASR-Affected Structures ...
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Nondestructive Evaluation Methods for Structures
Presented by
Matthew Donahue, P.E.
Dan Stromberg, S.E., P.E.
2www.dailyconstant.blogspot.com
Presentation Overview
• Summary of NDE Use
• NHI 130099 BINS Course
• Highlight 31 NDE methods
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Silver Bridge FailureDecember 15, 1967
Summary of NDE Use
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NDE Methods Stated by State Highway Agencies Used for Inspection (Participation by 45 States)
# of States
Visual 45
Dye Penetrant 36
Ultrasonic 29
Magnetic Particle 22
Sonic 6
Eddy Current 5
Boroscope 3
Radiography 2
Ground Penetrating Radar 2
Infrared Thermography 1
Based on FHWA Peer Exchange Survey from 2002
NBIS (23 CFR 650C)
§ 650.311 Frequency
• Establish criteria to determine the level and frequency of inspections.
§ 650.313 Inspection Procedures
• In accordance with AASHTO Manual for Bridge Evaluation (incorp. § 650.317)
• MBE Section 5 – Material Testing– Related to NDE testing
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NBIS (23 CFR 650C)
§ 650.305 Definitions
• In‐depth inspection
• Hands‐on inspection
• Fracture critical member
• Fracture critical member inspection
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Hands‐on Inspection
• Inspection within arm’s length of the component using visual techniques that may be supplemented by nondestructive testing.
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AASHTO Manual for Bridge Evaluation (MBE)
• Second edition published in 2011
• Section 4 of the MBE covers FCM inspection requirements
• Section 5 of the MBE covers Material Testing and Nondestructive Testing
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NDE in support of the National Bridge Inspection Program
NHI 130099 “Showcase” Course
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Bridge Inspection Nondestructive Evaluation Showcase (BINS)
Upon completion of the course, participants will be able to:
•Summarize and demonstrate the basic principles and general operations procedures for five handheld nondestructive testing (NDT) systems used for inspection of bridge components.
NHI 130099 “Seminar” Course
• 10 Modules– 30 Lessons
• 31 NDE methods
– Overview of systems and applications w/videos
– 2 case study exercises (steel and concrete)
NHI Pilot Presentation
May 15‐16, 2013
Arlington, VA
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NHI 130099 BINS Seminar Outcomes
• Module 2.0—Summarize the National Bridge Inspection Program (NBIP) expectations as they relate to NDE
• Module 3.0—Compare the various stress wave NDE methods as used in steel bridge inspection
• Module 4.0—Demonstrate understanding of stress wave and electromagnetic methods by choosing applicable NDE methods for specific defects from the Sherman Minton Bridge case study
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NHI 130099 Outcomes
• Module 5.0—Restate the theories, applications, advantages and limitations of various NDE testing methods and answer questions related to bridge program history
• Module 6.0—Compare the theories and applications of various acoustic wave testing methods for concrete/timber inspections
• Module 7.0—Compare the theories and applications of various electromagnetic testing methods for concrete/timber inspections
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NHI 130099 Outcomes
• Module 8.0—Differentiate between thermal, electrical, chemical, and physical NDE methods in bridge inspection programs
• Module 9.0—Examine various specialized NDE inspection methods used in bridge inspection
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Course AgendaTime Day 1—Agenda Item
8:00‐8:15 1.0 Welcome/Intro
8:15‐8:45 2.1 National Bridge Inspection Program Overview
8:45‐9:15 2.2 NDE Overview
9:15‐9:45 2.3 Introduction to Sherman Minton Bridge Case
9:45‐10:00 Break
10:00‐11:00 3.1 Wave Theory
11:00‐11:45 3.2 Ultrasonic Testing Methods
11:45‐12:15 3.3 Acoustic Emission Testing Methods (AE)
12:15‐1:15 Lunch
1:15‐2:00 4.1 Magnetic Particle Testing Method (MT)
2:00‐2:45 4.2 Eddy Current Testing Method (EC)
2:45‐3:15 4.3 Sherman Minton Bridge NDE Investigation
3:15‐3:30 Break
3:30‐4:15 4.4 Radiographic Testing Methods (RT)
4:15‐4:45 4.5 Sherman Minton Bridge Closure
4:45‐5:15 5.1 Review and Wrap‐up
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Time Day 2—Agenda Item
8:00‐8:45 5.3 Introduction to USH 1 Bridge Case Study
8:45‐9:15 6.1 Pulse Velocity (UPV)/Pulse Echo
9:15‐9:30 Break
9:30‐10:00 6.2 Impact Echo (IE)
10:00‐10:45 6.3 Spectral Analysis of Surface Waves (SASW)
10:45‐11:30 7.1 Ground Penetrating Radar (GPR)
11:30‐12:30 Lunch
12:30‐12:50 7.2 Pachometers
12:50‐1:20 7.3 Magnetic Flux Leakage (MFL)
1:20‐1:50 7.4 USH 1 Bridge NDE Investigation
1:50‐2:00 Break
2:00‐2:45 8.1 Infrared Thermography (IR)
2:45‐3:30 8.2 Electrical Methods
3:30‐3:45 Break
3:45‐4:05 8.3 Chemical Methods
4:05‐4:35 8.4 Physical Methods
4:35‐5:05 9.1 Additional Specialized Methods
5:05‐5:15 Break
5:15‐5:45 9.2 USH 1 Case Study Data Validation
5:45‐6:00 10.1 Summary and Review
6:00‐6:45 10.2 Final Assessment
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Dye Penetrant (PT)
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Ultrasonic Testing (UT)Straight‐beam
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Ultrasonic Testing (UT)Angled‐beam
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Ultrasonic Testing (UT)Phased array
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Acoustic Emission (AE)
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Magnetic Particle Testing (MT)
Cracks in weld
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Eddy Current (EC)
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Radiographic Testing (RT)
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Pulse Velocity (UPV)
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Pulse Echo Transducer Array
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Impact Echo (IE)
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Spectral Analysis of Surface Waves (SASW)
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Ground Penetrating Radar (GPR)
Pachometers
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Magnetic Flux Leakage (MFL)
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MFL Device
Sensor
Internal magnetic flux lines Flaw
Flux leakage
Tendon
Testing surface
N S
Infrared Thermography (IR)
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Half Cell Testing
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Volt CSE
Galvanostatic Pulse
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Electrical Resistance Testing
Shigometer
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Chloride Ion Testing
.2 .4 .6 .8 1.0 1.2Inches
Carbonation Testing
Newer crack Old crack Older crack
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Audible Methods
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Extent of delaminationExtent of delamination
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Rebound Hammer Testing
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Penetration Resistance Testing
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Laser Scanning
Optical Holography
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Exploratory Efforts
Post Tension Duct and Tendon Exposure (DTE)
Post Tension Duct
Questions
Contact:
Matt Donahue, P.E.
Dan Stromberg, S.E., P.E.
Terry M. Browne, P.E.
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