Mechanical properties of basalt: a study on compressive loading at different strain rates using SHPB

Autor: Jan Falta, Nela Krčmářová, Tomáš Fíla, Martin Vavro, Leona Vavro

Publikováno v: Acta Polytechnica CTU Proceedings, Vol 42 (2023)

This article focuses on the mechanical properties of basalt in compressive loading at different strain-rates. The study employs advanced instrumentation for the evaluation of the results in dynamic conditions, while standard uni-axial loading device

Externí odkaz: https://doaj.org/article/c5d1313eb43e48b1b769d0cb7be4315e

IDENTIFICATION OF PHASE COMPOSITION OF BINDERS FROM ALKALI-ACTIVATED MIXTURES OF GRANULATED BLAST FURNACE SLAG AND FLY ASH

Autor: JOZEF VLČEK, LUCIE DRONGOVÁ, MICHAELA TOPINKOVÁ, VLASTIMIL MATĚJKA, JANA KUKUTSCHOVÁ, MARTIN VAVRO, VÁCLAVA TOMKOVÁ

Publikováno v: Ceramics-Silikáty, Vol 58, Iss 1, Pp 79-88 (2014)

The prepared alkali-activated binders (AAB) and composites using suitable latent hydraulic raw materials represent an alternative to materials based on Portland cements. This paper deals with ways how to influence the functional parameters of AAB by

Externí odkaz: https://doaj.org/article/66976a2bd28b4c2ea93e245ee73b1298

Effect of petrographic composition and chemistry of aggregate on the local and general fracture response of cementitious composites

Autor: Zbyněk Keršner, Pavla Rovnaníková, Jiří Němeček, Martin Vavro, Leona Vavro, Barbara Kucharczyková, Hana Šimonová, Iva Rozsypalová, Michal Vyhlídal

Publikováno v: Frattura ed Integrita Strutturale. 2022, vol. 16, issue 60, p. 13-29.
Frattura ed Integrità Strutturale; Vol. 16 No. 60 (2022): April 2022; 13-29
Frattura ed Integrità Strutturale; V. 16 N. 60 (2022): April 2022; 13-29

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 inclusio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9aaf68748c4bc18f4be1e30bb23ec1b9
https://doi.org/10.3221/igf-esis.60.02

Evaluation of fracture response of Silesian granite specimens via Effective Crack Model approach and finite element analysis

Autor: Martin Vavro, Zbyněk Keršner, Leona Vavro, Lucie Malíková

Publikováno v: Procedia Structural Integrity. 2020, vol. 23, issue 1, p. 487-492.

The paper is focused on the advanced evaluation of fracture tests of selected rock specimens. Assessment of fracture response of chevron notch cylindrical specimens of Silesian granite subjected to three-point bending test was performed. The effectiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b645f87d19094a2866423219840fb83
https://doi.org/10.1016/j.prostr.2020.01.133

In-situ X-ray Differential Micro-tomography for Investigation of Water-weakening in Quasi-brittle Materials Subjected to Four-point Bending

Autor: Ivana Kumpová, Martin Vavro, Daniel Vavrik, Daniel Kytyr, Jan Šleichrt, Petr Zlámal, Michal Vopalensky, Václav Rada, Leona Vavro, Milos Drdacky, Tomáš Fíla, Pavel Benes, Petr Koudelka

Publikováno v: Materials
Materials, Vol 13, Iss 6, p 1405 (2020)
Materials; Volume 13; Issue 6; Pages: 1405

Several methods, including X-ray radiography, have been developed for the investigation of the characteristics of water-saturated quasi-brittle materials. Here, the water content is one of the most important factors influencing their strength and fra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0bf687752dd081b99cea1a195fe460d
https://pubmed.ncbi.nlm.nih.gov/32244868