scholarly journals Multivariate façade strengthening systems of textured layers in large slab panel buildings

2021 ◽  
pp. 21-36
Author(s):  
Dariusz TOMASZEWICZ ◽  
Neli BUDREVICH
Keyword(s):  
Two Stage ◽  
Drilling Rig ◽  
Type Device ◽  
Building Systems ◽  
Non Destructive ◽  
Destructive Methods

This article presents the solutions of bonded anchors used to strengthen façade textured layers in the walls of three-layer large slab panel buildings in Poland. Large slab panel building systems that are found in Poland have been characterized. The use of new bonded anchors is preceded by diagnostics of the walls of three-layer large slab panel buildings. The author presents two-stage diagnostics: non-destructive methods, measurement of reinforcement parameters and its condition using a Profometer type device, and destructive methods by performing an opencast with a drilling rig. A review of previously used bonded anchorages in Poland was carried out. Proposals for the use of anchor groups in various configurations with different angles of inclination of the diagonal anchors were also presented in order to achieve the most durable effect possible.

Rust creep assessment—A comparison between a destructive method according to ISO 12944 and selected non-destructive methods

2021 ◽  
Vol 157 ◽  
pp. 106293
Author(s):  
Huichao Bi ◽  
Claus Erik Weinell ◽  
Raquel Agudo de Pablo ◽  
Benjamín Santos Varela ◽  
Sergio González Carro ◽  
...  
Keyword(s):  
Non Destructive ◽  
Destructive Methods

scholarly journals Use of Nonlinear Optics for Assessment of Cable Polymer Aging

2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Kaylee Rellaford ◽  
Dallin Smith ◽  
Alexander Farnsworth ◽  
Shane Drake ◽  
Hoon Lee ◽  
...  
Keyword(s):  
Service Use ◽  
Second Harmonic ◽  
Protective Role ◽  
Electric Power Research Institute ◽  
Proof Of Concept ◽  
Elongation At Break ◽  
Chlorosulfonated Polyethylene ◽  
Polymer Aging ◽  
Non Destructive ◽  
Destructive Methods

Polymer jackets play an important protective role in distribution cabling by providing structure and resistance to moisture, heat, and exposure to harmful chemicals. Current methods of structural assessment, such as elongation at break (E-at-B), are inherently destructive. While other non-destructive methods such as indenter evaluation are available, they are not suitable for in-service use. We propose that second harmonic generation (SHG) could provide a non-destructive means of characterizing the aging of chlorosulfonated polyethylene (CSPE) cable jackets. SHG was used to study cables previously aged and characterized by the Electric Power Research Institute (EPRI). Comparative data between the SHG results and indenter modulus tests suggest that SHG can be used to qualitatively differentiate between minimally and significantly aged CSPE cable jackets. The results of this proof-of-concept study suggest additional work that could be done to better understand the mechanisms of the aging of CSPE cable jackets and how SHG could be used to monitor the aging process.

scholarly journals Questioned document examination with the use of alternative and complementary non-destructive methods

2021 ◽  
Vol 57 ◽  
pp. 149-167
Author(s):  
Rafał Cieśla
Keyword(s):  
Forensic Science ◽  
Legal Proceedings ◽  
Examination Methods ◽  
Document Examination ◽  
Reliable Knowledge ◽  
Important Position ◽  
Non Destructive ◽  
Destructive Methods

Questioned document examination occupies an important position in forensic science. Its purpose is to provide the authority conducting legal proceedings with reliable knowledge confirming or excluding authenticity of a document, therefore every effort should be made to use relevant and legally admissible examination methods. For many years reliable non-destructive methods have been developed, whose use in expert examination will enable subsequent control both by the authority conducting legal proceedings and other parties in the proceedings. This article proposes the use of alternative non-destructive methods in examination of documents.

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