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Application of the Acoustic Emission Method in Concrete Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: closed (10 June 2022) | Viewed by 4745

Special Issue Editor


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Guest Editor
Faculty of Civil Engineering, Brno University of Technology, Veveri 331/95, 602 00 Brno, Czech Republic
Interests: the application nondestructive testing methods in civil engineering; acoustic emission method; cement-based and alkali-activated-based materials; structural health monitoring in civil engineering
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Special Issue Information

Dear Colleagues,

Although concrete is one of the oldest building materials (well-preserved Roman concrete structures can still be found standing), developments in recent years have significantly improved its properties (e.g., strength, mechanical and chemical resistance, workability, and others). At the same time, its disadvantages (e.g., fragility, negative environmental impacts) have been overcome. The acoustic emission (AE) method is already well known in the scientific community and is applied in many fields (e.g., pressure vessel inspection, aviation, engineering, and others).

Merging the two topics of acoustic emission and concrete materials offers a number of new insights for experts in both areas. It is therefore my pleasure to invite you to submit an original manuscript for this Special Issue focusing on application of the acoustic emission method in concrete materials. The aim of this Special Issue is to gather knowledge and experience in the latest advances and trends in the given areas.

Potential topics include but are not limited to the following:

  • Testing of concrete materials and elements in civil engineering;
  • Testing of structures made of novel concrete materials (e.g., green concrete, alkali-based concrete, etc.);
  • Real-time damage detection and damage imaging;
  • Novel algorithms for acoustic emission data analysis;
  • Artificial intelligence and machine learning applications for analysis of AE signals;
  • Sensors and equipment for measuring AE;
  • Installation and arrangement of AE sensors for crack localization;
  • Health and stability monitoring in civil engineering by the AE method;
  • AE activity characteristics in the disaster development process of civil engineering;
  • Other nondestructive acoustic testing methods for concrete materials.

Dr. Libor Topolář
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • acoustic emission method
  • cement-based materials
  • alkali-activated-based materials
  • data analysis
  • artificial intelligence
  • machine learning application
  • crack localization
  • structural health monitoring
  • acoustic nondestructive methods

Published Papers (2 papers)

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Research

30 pages, 133910 KiB  
Article
The Behavior of Cement-Bonded Particleboard with Modified Composition under Static Load Stress
by Tomas Melichar, Jiri Bydzovsky, Richard Dvorak, Libor Topolar and Sarka Keprdova
Materials 2021, 14(22), 6788; https://doi.org/10.3390/ma14226788 - 10 Nov 2021
Cited by 3 | Viewed by 1993
Abstract
This article presents research on the behavior of cement-bonded particleboards under mechanical stress caused by the static load. The composition of the boards was modified using alternative raw materials–dust (DU) forming during the processing of cement-fibre boards and particle mixture (PM) generated in [...] Read more.
This article presents research on the behavior of cement-bonded particleboards under mechanical stress caused by the static load. The composition of the boards was modified using alternative raw materials–dust (DU) forming during the processing of cement-fibre boards and particle mixture (PM) generated in the production of cement-bonded particleboards. The particleboards (1-year-old) were subjected to an adverse environment (100 to 250 frost cycles). Mechanical parameters were tested, and the development of defects during static load of the boards by bending was analyzed using acoustic emission. Particleboards with modified compositions are slightly more resistant to adverse environments. The results of the acoustic emission showed the different types of defects occurring under stress by bending. Standard-composition particleboards showed defects located mainly under the cylindrical stress-test head. The modified boards showed larger location distribution of the occurring defects that were also concentrated further away from the cylindrical stress head. The energy during the occurrence of defects was higher in the modified boards in the location of weight application than in the reference boards. Full article
(This article belongs to the Special Issue Application of the Acoustic Emission Method in Concrete Materials)
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11 pages, 5525 KiB  
Article
Self-Sensing Properties of Fly Ash Geopolymer Doped with Carbon Black under Compression
by Cecílie Mizerová, Ivo Kusák, Libor Topolář, Pavel Schmid and Pavel Rovnaník
Materials 2021, 14(16), 4350; https://doi.org/10.3390/ma14164350 - 4 Aug 2021
Cited by 11 | Viewed by 2115
Abstract
The development of smart materials is a basic prerequisite for the development of new technologies enabling the continuous non-destructive diagnostic analysis of building structures. Within this framework, the piezoresistive behavior of fly ash geopolymer with added carbon black under compression was studied. Prepared [...] Read more.
The development of smart materials is a basic prerequisite for the development of new technologies enabling the continuous non-destructive diagnostic analysis of building structures. Within this framework, the piezoresistive behavior of fly ash geopolymer with added carbon black under compression was studied. Prepared cubic specimens were doped with 0.5, 1 and 2% carbon black and embedded with four copper electrodes. In order to obtain a complex characterization during compressive loading, the electrical resistivity, longitudinal strain and acoustic emission were recorded. The samples were tested in two modes: repeated loading under low compressive forces and continuous loading until failure. The results revealed piezoresistivity for all tested mixtures, but the best self-sensing properties were achieved with 0.5% of carbon black admixture. The complex analysis also showed that fly ash geopolymer undergoes permanent deformations and the addition of carbon black changes its character from quasi-brittle to rather ductile. The combination of electrical and acoustic methods enables the monitoring of materials far beyond the working range of a strain gauge. Full article
(This article belongs to the Special Issue Application of the Acoustic Emission Method in Concrete Materials)
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