Acoustic emission (AE) is defined as the physical phenomenon in which a material generates elastic waves when subjected to stress or deformation. These signals are registered using a non-destructive test method (NDT) called the acoustic emission test. An acoustic emission ...
Discy Latest Articles
What to Do if Concrete Cylinder Test Fails at 28 Days?
The failure of the concrete cylinder test at 28 days occurs due to several factors like improper casing and curing of specimens and an incorrect mix of concrete used for construction. The cause of the failure should be identified by ...
How does a Ground Penetrating Radar (GPR) Work? [PDF]
A Ground-penetrating radar (GPR) is a non-destructive technique used for investigating the characteristics of the subsurface. It is a real-time NDT instrument that employs high-frequency radio waves to study the underground surface. This technique provides high-resolution data within a short ...
How to Perform Magnetic Particle Inspection? [PDF]
Magnetic Particle Inspection (MPI) is a popular non-destructive testing (NDT) method. MPI helps to detect surface and subsurface faults and discontinuities in ferromagnetic metals and their alloys such as nickel, iron, and cobalt. Steel, automobile, petrochemicals, power, and aerospace industries ...
Standard Deviation for Compressive Strength of Concrete with Example [PDF]
Standard deviation for concrete is the method to determine the reliability between the compressive strength results of a concrete batch. The standard deviation serves as the basis for control of variability in the test results of concrete for the same ...
Fire Damage Mechanism of RC Structure and Assessment Method
Fire cause concrete surface cracking and crazing, chemical decomposition, and microcracking and spalling. These impacts can significantly change the properties of structural concrete, reducing strength and durability, and altering structural behavior. Assessment and evaluation of damages caused by fire is ...
Non-destructive Tests on RC Structures: Basic Methods, and Purposes
Non-destructive tests (NDT) are test methods which are used to examine the hardened concrete structure for their suitability for its intended use without interfering in any way with the integrity of the material or its suitability for service. So, locating ...
Applications and Importance of Non-destructive Tests on Concrete
Non-destructive tests (NDT) are widely used and play an important role in engineering projects including newly constructed and existing structures. For new structures, applications are mainly quality control or the resolution of doubts about the quality of materials or construction. ...