Event Summary
Exploring Non-Destructive Testing Techniques in Concrete Investigations
This webinar will focus on the role of Non-Destructive Testing (NDT) techniques in the investigation and condition assessment of concrete structures. Attendees will be introduced to specific NDT methods categorised by their application in the attributes of Strength, Corrosion and Condition Assessment.
PRESENTERS:
Rebecca Newby, Saeed Ali and Ian Ng.
PRESENTATION DETAIL:
The webinar will explore the following Assessments by utilising these testing procedures:
Strength Assessment:
· Rebound Hammer Test: This technique involves striking the concrete surface with a spring-loaded hammer to measure surface hardness as an indicator of compressive strength.
· Ultrasonic Pulse Velocity (UPV): UPV measures the speed of an ultrasonic pulse through concrete, providing insights into the material's uniformity and detecting flaws such as cracks and voids.
Corrosion Assessment:
· Half Cell Potential: This electrochemical test method helps identify the likelihood of corrosion in reinforcing steel within concrete structures.
· Resistivity Measurement: By assessing the electrical resistivity of concrete, this method evaluates the permeability and porosity of concrete’s, which is a major factor in durability.
Condition Assessment:
· Infrared Thermography: This method uses infrared cameras to detect temperature variations on the surface of concrete structures, which can indicate voids, delamination, or moisture ingress.
· Pulse Echo: Utilizing sonic echo and impact echo principles, this technique assesses the depth of surface-opening cracks and evaluates the thickness and integrity of concrete elements.
· Ground Penetrating Radar (GPR): GPR is effective in mapping the interior layers of concrete to locate embedded objects, such as conduits, pipes, and rebar, and to detect voids and deterioration.
Each session will explore the theoretical basis, practical implementation, and case studies where these methods have successfully diagnosed and helped mitigate issues in concrete structures. We will also discuss how test programs should be developed to maximise investigation results. This webinar aims to equip participants with the knowledge to choose appropriate NDT methods based on specific structural conditions and expected challenges.
The webinar will run, as a live presentation, from 2.00pm to approximately 3.00pm (AEDT). It is conducted online on the Zoom platform and delegates will be emailed login details and a password for this webinar prior to the event.
Times for all States/Territories
2.00 pm to 3.00 pm NSW / ACT / VIC / TAS (AEDT)
1.00 PM to 2.00 pm QLD (AEST)
1.30 pm to 2.30 pm SA (ACDT)
12.30 pm to 1.30 pm NT (ACST)
11.00 am to 12.00 pm WA (AWST)
Prices (including GST):
$44.00 CIA Professional, Company & Academic Members
$22.00 CIA Retired, Life, Honorary Student
$66.00 Non-members
Presenters
Rebecca Newby is the NSW State Manager of BCRC, with experience in overseeing numerous engineering projects includes but not limited to infrastructure, heritage structure, and new-built development.
Saeed Ali is a Senior Engineer with BCRC, specializing in the technical aspects of corrosion assessment including to steel structures and Post Tension assessment. With extensive field experience, he has a deep understanding of the corrosion mechanism and NDT techniques for corrosion assessment in concrete. His work has contributed significantly to extending the life span and reliability of numerous engineering structures.
Ian Ng is a Senior Engineer with BCRC, who focuses on the implementation of innovative testing methods within the construction industry. His expertise in GPR and infrared thermography (Level 2 Thermographer) are used for condition assessment of infrastructural components.
