Number of the records: 1
Effects of Shaping Method on Properties of Rock Samples
- 1.
SYSNO ASEP 0475805 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Effects of Shaping Method on Properties of Rock Samples Author(s) Staš, Lubomír (UGN-S) RID, ORCID
Sitek, Libor (UGN-S) RID, ORCID
Zajícová, Vendula (UGN-S)
Souček, Kamil (UGN-S) RID, ORCID
Hlaváček, Petr (UGN-S) RID, ORCIDNumber of authors 5 Source Title Procedia Engineering - ISRM European Rock Mechanics Symposium EUROCK 2017. - Amsterdam : Elsevier Ltd., 2017 / Koníček P. ; Souček K. ; Konečný P. - ISSN 1877-7058 Pages s. 703-710 Number of pages 8 s. Publication form Online - E Action ISRM European Rock Mechanics Symposium EUROCK 2017 Event date 20.06.2017 - 23.06.2017 VEvent location Ostrava Country CZ - Czech Republic Event type WRD Language eng - English Country NL - Netherlands Keywords rock cutting method ; specimen shaping ; high-speed abrasive water jet ; X-Ray CT ; porosimetry Subject RIV JQ - Machines ; Tools OECD category Materials engineering R&D Projects TA04020986 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LO1406 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED2.1.00/03.0082 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UGN-S - RVO:68145535 UT WOS 000416996000090 DOI 10.1016/j.proeng.2017.05.235 Annotation Non-destructive investigation and analysis of inner structure of rock samples by an X-ray CT is an important instrument for better insight into properties of rock materials related to the geometrical shape and arrangement of individual construction elements, the spatial distribution of pore space included. Study of migration parameters of transfer of granitic rock from micro- scale to real scale in the rock massive required the most detailed visualisation as possible of the pore space of selected granitic samples which is mostly formed by micro-cracks and thus can have crucial effect on transport properties of material. The visualisation of such structures requires minimizing dimensions of testing pieces. However, the method of preparation (shaping) of the testing samples of small dimensions can considerably affect not only their surface properties, but also their inner structure. The paper deals with the visualisation of small cracks in the structure and it compares two completely different methods of preparation of small rock testing samples, i.e. sample preparation by diamond circular saw and high-speed abrasive water jet. The effect of each technology of sample preparation on creation of secondary degradation of the near-surface zone of samples which is not caused by natural processes is examined. Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2018 Electronic address http://www.sciencedirect.com/science/article/pii/S1877705817323755
Number of the records: 1