Pulse-Echo Ultrasonic Verification of Silicate Surface Treatments Using an External-Excitation/Single-Receiver Configuration: ROC-Based Differentiation of Concrete Specimens

Simple item page
dc.contributor.authorTopolář, Liborcs
dc.contributor.authorKalina, Lukášcs
dc.contributor.authorMarkusík, Davidcs
dc.contributor.authorCába, Vladislavcs
dc.contributor.authorSedlačík, Martincs
dc.contributor.authorČerný, Felixcs
dc.contributor.authorSkibicky, Szymoncs
dc.contributor.authorBílek, Vlastimilcs
dc.coverage.issue16cs
dc.coverage.volume18cs
dc.date.issued2025-08-11cs
dc.description.abstractThis study investigates a non-destructive, compact pulse-echo ultrasonic method that combines an external transmitter with a single receiving sensor to identify different surface treatments applied to cementitious materials. The primary objective was to evaluate whether treatment-induced acoustic changes could be reliably quantified using time-domain signal parameters. Three types of surface conditions were examined: untreated reference specimens (R), specimens treated with a standard lithium silicate solution (A), and those treated with an enriched formulation containing hexylene glycol (B) intended to enhance pore sealing via gelation. A broadband piezoelectric receiver collected the backscattered echoes, from which the maximum amplitude, root mean square (RMS) voltage, signal energy, and effective duration were extracted. Receiver operating characteristic (ROC) analysis was conducted to quantify the discriminative power of each parameter. The results showed excellent classification performance between groups involving the B-treatment (AUC 0.96), whereas the R vs. A comparison yielded moderate separation (AUC 0.61). Optimal cut-off values were established using the Youden index, with sensitivity and specificity exceeding 96% in the best-performing scenarios. The results demonstrate that a single-receiver, one-sided pulse-echo arrangement coupled with straightforward amplitude metrics provides a rapid, cost-effective, and field-adaptable tool for the quality control of silicate-surface treatments. By translating laboratory ultrasonics into a practical on-site protocol, this study helps close the gap between the experimental characterisation and real-world implementation of surface-treatment verification.en
dc.description.abstractThis study investigates a non-destructive, compact pulse-echo ultrasonic method that combines an external transmitter with a single receiving sensor to identify different surface treatments applied to cementitious materials. The primary objective was to evaluate whether treatment-induced acoustic changes could be reliably quantified using time-domain signal parameters. Three types of surface conditions were examined: untreated reference specimens (R), specimens treated with a standard lithium silicate solution (A), and those treated with an enriched formulation containing hexylene glycol (B) intended to enhance pore sealing via gelation. A broadband piezoelectric receiver collected the backscattered echoes, from which the maximum amplitude, root mean square (RMS) voltage, signal energy, and effective duration were extracted. Receiver operating characteristic (ROC) analysis was conducted to quantify the discriminative power of each parameter. The results showed excellent classification performance between groups involving the B-treatment (AUC 0.96), whereas the R vs. A comparison yielded moderate separation (AUC 0.61). Optimal cut-off values were established using the Youden index, with sensitivity and specificity exceeding 96% in the best-performing scenarios. The results demonstrate that a single-receiver, one-sided pulse-echo arrangement coupled with straightforward amplitude metrics provides a rapid, cost-effective, and field-adaptable tool for the quality control of silicate-surface treatments. By translating laboratory ultrasonics into a practical on-site protocol, this study helps close the gap between the experimental characterisation and real-world implementation of surface-treatment verification.en
dc.formattextcs
dc.format.extent1-22cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials. 2025, vol. 18, issue 16, p. 1-22.en
dc.identifier.doi10.3390/ma18163765cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0001-9437-473Xcs
dc.identifier.orcid0000-0001-8127-8175cs
dc.identifier.orcid0000-0003-4554-1284cs
dc.identifier.orcid0000-0002-8409-992Xcs
dc.identifier.orcid0000-0002-4641-2081cs
dc.identifier.orcid0000-0003-3831-3443cs
dc.identifier.other198518cs
dc.identifier.researcheridE-9341-2018cs
dc.identifier.researcheridAAB-9386-2022cs
dc.identifier.scopus37051376500cs
dc.identifier.scopus55255338000cs
dc.identifier.urihttp://hdl.handle.net/11012/255476
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/18/16/3765cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectpulse-echo ultrasonic testingen
dc.subjectnon-destructive evaluationen
dc.subjectsurface treatment identificationen
dc.subjectsilicate sealeren
dc.subjectROC analysisen
dc.subjectcement-based materialsen
dc.subjectquality controlen
dc.subjectpulse-echo ultrasonic testing
dc.subjectnon-destructive evaluation
dc.subjectsurface treatment identification
dc.subjectsilicate sealer
dc.subjectROC analysis
dc.subjectcement-based materials
dc.subjectquality control
dc.titlePulse-Echo Ultrasonic Verification of Silicate Surface Treatments Using an External-Excitation/Single-Receiver Configuration: ROC-Based Differentiation of Concrete Specimensen
dc.title.alternativePulse-Echo Ultrasonic Verification of Silicate Surface Treatments Using an External-Excitation/Single-Receiver Configuration: ROC-Based Differentiation of Concrete Specimensen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-198518en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 14:07:30en
sync.item.modts2025.10.14 10:51:09en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav fyzikycs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
materials1803765v2.pdf
Size:
3.54 MB
Format:
Adobe Portable Document Format
Description:
file materials1803765v2.pdf
Download
Collections
Ústav chemie materiálů
Ústav fyziky