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Influence of rock inclusion composition on the fracture response of cement-based composite specimens
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SYSNO ASEP 0549381 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Influence of rock inclusion composition on the fracture response of cement-based composite specimens Author(s) Vyhlídal, M. (CZ)
Rozsypalová, I. (CZ)
Šimonová, H. (CZ)
Kucharczyková, B. (CZ)
Vavro, Leona (UGN-S) RID
Vavro, Martin (UGN-S) RID, ORCID
Němeček, J. (CZ)
Rovnaníková, P. (CZ)
Keršner, Z. (CZ)Number of authors 9 Source Title Procedia Structural Integrity, 33. - Amsterdam : Elsevier B.V., 2021 / Iacoviello F. - ISSN 2452-3216 Pages s. 966-981 Number of pages 16 s. Publication form Online - E Action International Conference on Fracture and Structural Integrity /26./ Event date 26.05.2021 - 28.05.2021 VEvent location Turin Country IT - Italy Event type WRD Language eng - English Country NL - Netherlands Keywords cement-based composite ; force–displacement diagram ; fracture test ; inclusion ; mechanical fracture parameters ; rocks Subject RIV JL - Materials Fatigue, Friction Mechanics OECD category Applied mechanics Institutional support UGN-S - RVO:68145535 EID SCOPUS 85120675512 DOI 10.1016/j.prostr.2021.10.107 Annotation This paper concerns the results of research into the influence of the composition of rock inclusions on the fracture response of cement-based composite specimens. Specially designed specimens of the nominal dimensions 40 × 40 × 160 mm with inclusions in the shape of prisms with nominal dimensions of 8 × 8 × 40 mm were provided with an initial central edge notch with a depth of 12 mm. These specimens, which were made of fine-grained cement-based composite with different types of rock inclusion – amphibolite, basalt, granite, and marble – were tested in the three-point bending configuration. Fracture surfaces were examined via scanning electron microscopy and local response in the vicinity of rock inclusions was characterized via the nanoindentation technique. The aim of this paper is to analyse the influence of the chemical/petrographic composition of rock inclusions on the effective mechanical fracture parameters of cement-based composites, as well as on the microstructural mechanical parameters of the interfacial transition zone. The results of this research indicate the significant dependence of the effective fracture parameters on the petrographic and related chemical composition of the rock inclusions. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2022 Electronic address https://www.sciencedirect.com/science/article/pii/S245232162100202X
Number of the records: 1