Crack closure assessment in cementitious mixtures based on ultrasound measurements

Research output: Chapter in Book/Report/Conference proceedingConference paper

1 Citation (Scopus)

Abstract

Cracking of cementitious materials poses severe problems for the mechanical performance and the durability of concrete structures. Self-healing cementitious materials provide a means of countering these issues, but the testing procedures to assess the self-healing efficiency are mostly impractical for in-situ evaluation. This study concerns the evaluation of the crack closure in cementitious mixtures with and without superabsorbent polymers by ultrasound measurements. Ultrasonic waves are sent through the cracks by means of pencil lead break tests, thereby offering information on the sound material as well as on the healing products formed within the cracks. The healing process is promoted by placing the specimens in wet-dry curing cycles and is monitored for a period of 14 days. Ultrasound was found to be sensitive to the closure of cracks, which was confirmed by the visual reduction in crack width opening, as investigated by microscopic analysis.

Original languageEnglish
Title of host publicationProceedings of the 75th RILEM Annual Week 2021: Advances in Sustainable Construction Materials and Structures
PublisherSpringer
Pages838-845
Number of pages8
DOIs
Publication statusPublished - 2023
EventProceedings of the 75th RILEM Annual Week 2021: Advances in Sustainable Construction Materials and Structures - Merida, Mexico
Duration: 29 Aug 20213 Sep 2021
https://www.rilem.net/global/gene/link.php?news_link=2021150643_75th-rilem-week-report-3.pdf&fg=1

Publication series

NameRILEM Bookseries
Volume40
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852

Conference

ConferenceProceedings of the 75th RILEM Annual Week 2021: Advances in Sustainable Construction Materials and Structures
Country/TerritoryMexico
CityMerida
Period29/08/213/09/21
Internet address

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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