Building and civil engineering sealants � Determination of the degree of cure

2021 ◽  
Keyword(s):  
Civil Engineering ◽  
Degree Of Cure

High Frequency Ultrasonic Measurements

1988 ◽  
Vol 21 (5) ◽  
pp. 133-136
Author(s):  
N Zarsav
Keyword(s):  
High Frequency ◽  
Polymer Coating ◽  
Steel Sheet ◽  
Lamb Waves ◽  
Thin Plates ◽  
Design Features ◽  
Degree Of Cure ◽  
Double Probe ◽  
Ultrasonic Measurements

The use of high frequency ultrasonic Lamb waves to measure the thickness of thin plates and foils, is discussed and the feasibility of their application to the determination of the degree of cure of polymer coating on coated tin plated steel sheet (as used by the food can industry) is evaluated. The paper also discusses briefly the design features of the purpose built precision double probe ultrasonic goniometer used to carry out these measurements.

scholarly journals Measuring Displacements in Engineering Structures by Means of a Coordinate Laser Station

2016 ◽  
Vol 23 (4) ◽  
pp. 145-160 ◽  
Author(s):  
Jacek Sztubecki ◽  
Adam Bujarkiewicz ◽  
Małgorzata Sztubecka
Keyword(s):  
Measurement Technique ◽  
Civil Engineering ◽  
Direct Drive ◽  
Engineering Structures ◽  
Total Station ◽  
3 Dimensional ◽  
Dimensional Measurements ◽  
Civil Engineering Structures ◽  
Definition Of

Abstract The application of geodetic methods to examine structures consists in the determination of their displacements relative to an established geodetic reference datum or in the definition of the geometry of their individual components. Such examinations form a picture of changes happening between specific points in time. Modern measurement technologies used in geodetic engineering enable undertaking more and more challenging measurements with increasing accuracy. The purpose of this article is to present a measurement technique involving a Leica TDRA 6000 total station to measure displacements in engineering structures. The station features a direct drive technology to achieve an accuracy of 0.25 mm in 3-dimensional measurements. Supported by appropriate software, the unit makes a perfect instrument for the monitoring of civil engineering structures. The article presents the results of measurement of static and dynamic displacements in a few engineering structures. The measurements were carried out both in laboratory conditions and on actual, operated civil engineering structures.

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