Topic outline
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About this course
Welcome to the Micro-Credential class of "Introduction to NDT for Concrete Structure". It is a comprehensive course designed to provide participants essential knowledge and skills in the field of NDT as it applies to concrete assessment. Non-Destructive Testing involves techniques used to evaluate the properties of materials, components, or systems without causing damage. Participants will gain essential knowledge on principles and concepts of NDT, its significance in concrete structure and common NDT methods used in construction inspection.
Upon successful completion of this course; participants will achieve the following outcomes:
Understand the basic principle and concept of on-destructive testing (NDT) used in concrete structures
Identify appropriate NDT methods based on the characteristics of the material, type of structure, and the nature of potential defects
Evaluate common defects, such as cracks, voids, and discontinuities in materials and structures
Completing this course leads to obtain a Certificate of Completion.-
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Cracking is a common observation in concrete structures. Cracks can be a result of plastic shrinkage, or constructional movements. Moreover, cracks can happen as a result of overloading concrete elements, or creep. Chemical reactions such as alkali-aggregate reactions and corrosion can induce cracking. Material and Structural engineers are interested in the main reasons behind concrete cracks, and determine the extent and severity of existing cracks. Crack measurement helps us evaluate the integrity of the concrete structure and carry out performance durability verifications.
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MODULE 2 CRACK MEASUREMENT.pptx by Herliana Hassan
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The methods to estimate concrete strength has been extremely popular among engineers and inspectors involved in the field of structure inspection, evaluation and condition assessment. The rebound hammer, developed by Ernst Schmidt, provides an inexpensive and quick method for nondestructive testing and evaluation of the hardness of concrete. In this video we will review the rebound hammer, how it works, and how rebound number is determined.
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ViewRebound Hammer Test by Herliana Hassan
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MODULE 3.0 : Rebound Hammer by IBM.PSIS -
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Ultrasonic Pulse Velocity (UPV) Ultrasonic Pulse Velocity (UPV) is an effective non-destructive testing (NDT) method for quality control of concrete materials, and detecting damages in structural components. The UPV methods have traditionally been used for the quality control of materials, mostly homogeneous materials such as metals and welded connections. With the recent advancement in transducer technology, the test has been widely accepted in testing concrete materials. Ultrasonic testing of concrete is an effective way for quality assessment and uniformity, and crack depth estimation. The test procedure has been standardized as “Standard Test Method for Pulse Velocity through Concrete” (ASTM C 597, 2016).
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Ultrasonic Pulse Velocity by Mohd Izuddin B. Mahmood -
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Cover meter test is a non-destructive test which is used to specify the location of reinforcement bars in concrete and determine the exact concrete cover needed. The magnetic rebar locator test plays a significant role in construction works because the information about the location of steel bars, concrete cover, and bar sizes is essential, directly or indirectly, in many field applications.
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Viewcover meter test by Herliana Hassan
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Half Cell corrosion mapping is an effective method for assessing the severity of corrosion activity in concrete structures. It is the most well-known procedure to identify the likelihood of active corrosion; however, the test does not provide any information about the kinetics of corrosion activity. The easy and cost-effective procedure of the test makes it popular among engineers and structure inspectors.
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PageViewHalf cell potential by Herliana Hassan
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View Make attempts: 1 Receive a grade
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Reference by Herliana Hassan
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