Quality evaluation of concrete structures: Some nondestructive testing approaches

2005 ◽  
Vol 1 (1) ◽  
Author(s):  
Mohan Prasad Aryal
Keyword(s):  
Nondestructive Testing ◽  
Quality Evaluation ◽  
Concrete Structures

Electromagnetic methods in nondestructive testing of materials

2003 ◽  
Vol 16 (1) ◽  
pp. 1-23
Author(s):  
Konstanty Gawrylczyk
Keyword(s):  
Sensitivity Analysis ◽  
Finite Elements ◽  
Nondestructive Testing ◽  
Eddy Current ◽  
Quality Evaluation ◽  
Leakage Flux ◽  
Electromagnetic Methods ◽  
Conducting Materials ◽  
Inductive Methods ◽  
Flux Probe

The article deals with progress in electromagnetic methods used for quality evaluation of conducting materials. The term "electromagnetic methods" covers the following areas: magneto-inductive methods, magnetic leakage flux probe method, magnetometer principle and eddy-current methods. For the aim of numerical cracks recognition the sensitivity analysis with finite elements was shown.

608 Nondestructive Testing of Delamination Defects in Concrete Structures Using Lock-in Infrared Thermography

2001 ◽  
Vol 2001.76 (0) ◽  
pp. _6-15_-_6-16_
Author(s):  
Takahide SAKAGAMI ◽  
Shiro KUBO ◽  
Takahisa YAMAMOTO ◽  
Yasushi KAWASHIMA ◽  
Shiro NAKAMURA ◽  
...  
Keyword(s):  
Nondestructive Testing ◽  
Infrared Thermography ◽  
Concrete Structures ◽  
Lock In

Inspection of Grouting Quality for Grouted Tendon Ducts Using Ground Penetrating Radar Technique

2013 ◽  
Vol 639-640 ◽  
pp. 1051-1055 ◽  
Author(s):  
Xian Yan Zhou ◽  
Jian Luan ◽  
Da Hai Zhang
Keyword(s):  
Nondestructive Testing ◽  
Ground Penetrating Radar ◽  
Prestressed Concrete ◽  
Concrete Structures ◽  
Optimal Methods ◽  
Ground Penetrating ◽  
Radar Technique ◽  
Post Tensioned

With the wide applications of post-tensioned concrete structures, the grouting conditions of tendon ducts are paid more attentions. In order to accurately assess the internal grouting quality of the grouted tendon ducts and certainly guarantee the lifetime of prestressed concrete structures Ground Penetrating Radar (GPR), which is a kind of nondestructive testing (NDT) method, has been applied to inspect and evaluate qualitatively and quantitatively on the grouting defects, respectively. A series of in-house tests were carried out for simulating the defects of tendon ducts by foams with different sizes. The results show that the GPR technic was one of the optimal methods for inspecting the internal grouting quality of grouted tendon ducts for post-tensioned concrete structures.

Sign in / Sign up

Export Citation Format

Share Document