Ультразвуковой адаптивный томограф бетонных изделий с нестандартной конфигурацией

2021 ◽  
pp. 15-25
Author(s):  
В.К. Качанов ◽  
И.В. Соколов ◽  
Р.В. Концов ◽  
М.Б. Федоров ◽  
В.В. Первушин
Keyword(s):  
Antenna Arrays ◽  
Adaptive Methods ◽  
Adaptive Antenna ◽  
Ultrasonic Tomography ◽  
Building Structures ◽  
Planar Surface ◽  
Ultrasound Tomography ◽  
Surface Configuration ◽  
Velocity Of Ultrasound ◽  
Concrete Building

It is shown that should be used adaptive antenna arrays, the shape of which can take the form of a non-planar surface of the tested product, for ultrasonic tomography of concrete building structures with a non-standard surface configuration. It should also be used adaptive methods of ultrasound tomography, which allows both to determine the coordinates of defects and the velocity of ultrasound in concrete, as well as adjust the parameters of the probing signals to the characteristics of concrete products.

Detection of reflecting planes in ultrasonic tomography of concrete building structures

2010 ◽  
Vol 46 (5) ◽  
pp. 342-349 ◽  
Author(s):  
V. K. Kachanov ◽  
I. V. Sokolov ◽  
D. V. Timofeev ◽  
M. V. Turkin ◽  
E. V. Shalimova
Keyword(s):  
Ultrasonic Tomography ◽  
Building Structures ◽  
Concrete Building

scholarly journals Assess the Effectiveness of protective Concrete coatings of microbiological sulfuric acid Aggression

2019 ◽  
Vol 97 ◽  
pp. 02022
Author(s):  
Viktor Sopov ◽  
Julia Danchenko ◽  
Ekaterina Latorez
Keyword(s):  
Sulfuric Acid ◽  
Building Structures ◽  
Predominant Role ◽  
Microbiological Processes ◽  
Repair Materials ◽  
Bactericidal Properties ◽  
Mineral Acids ◽  
Concrete Building ◽  
Modified Epoxy

Specification of corrosion processes in sewerage networks, the predominant role of microbiological processes in them requires the protection of concrete with materials resistant to specific biogenic sulfuric acid aggression. The effective protective materials, in this case, are those that, in addition to acid-proofing materials, have bactericidal properties. Polymer composite materials (PCM) of cold curing based on modified epoxy-resin, resins with dispersed oxides as fillers are widely used in construction. Unique properties and simple technologies make it possible to use them as injection formulations for repair, restoration and restoration of building structures and structures, waterproofing and facing materials, for impregnating, gluing and coating metal, wooden, brick and concrete building structures and parts. In the reconstruction and restoration of sewerage collectors operating under conditions of exposure to liquid biochemically aggressive media with mineral acids and organic substances, particular attention is paid to the permeability of repair materials. Based on the results of the study, PCM compositions were chosen whose estimated lifetime is about 20 years, ensuring reliable protection of the sewage collectors from corrosion.

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