An advanced assessment of sandstone uniaxial compressive tests

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F25%3A00638286" target="_blank" >RIV/68145535:_____/25:00638286 - isvavai.cz</a>

Result on the web

<a href="https://airdrive.eventsair.com/eventsairwesteuprod/production-atlanticmice-public/81d644652c144491b3c1c5d9a6013f48" target="_blank" >https://airdrive.eventsair.com/eventsairwesteuprod/production-atlanticmice-public/81d644652c144491b3c1c5d9a6013f48</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

An advanced assessment of sandstone uniaxial compressive tests

Original language description

The compressive strength value is used in many technical fields as a basic mechanical resistance parameter to characterize various materials. The uniaxial compression test method is standardized for individual materials and is considered traditional, based on many decades of engineering experience. The uniaxial compressive strength (UCS) is usually determined on cubic or cylindrical test specimens of various dimensions. Its determination on rock core samples, for example, should follow the ISRM recommendation of keeping the length-to-diameter ratio (slenderness ratio) of the test specimen between 2.5 and 3.0. Perhaps the greatest advantage of the UCS testing is its speed and simplicity. UCS is easily measurable and requires no special laboratory equipment other than a compression testing machine. Therefore, it would seem that further research in this direction will not bring anything new. However, in this contribution the authors have tried to find some unusual insights into compressive testing. More specifically, some non-traditional parameters of dry and water-saturated sandstone were determined during uniaxial compressive testing on cylindrical test specimens with five different slenderness ratios ranging from 0.7 to 3.0. In addition to the UCS, parameters such as the effective compressive strength, dynamic bulk modulus, effective elasticity modulus and slope of the fracture surface were determined. The results obtained were correlated with the slenderness ratio of the tested specimens. In addition, the UCS determined on cylindrical and cubic test specimens was compared. Cretaceous medium-grained to coarse-grained arkose sandstone from the Božanov quarry in the north-east Bohemia, a well-known and long-used natural stone in the Czech Republic for construction, architecture and sculpture, was used in the experiment. The observed aspects of response of specimens from this quasi-brittle material to quasi-static loading can enrich the traditional ideas reflected primarily in the standard regulations regarding the recommended slenderness ratio to obtain relevant strength and stiffness characteristics.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20701 - Environmental and geological engineering, geotechnics

Project

<a href="/en/project/GA23-05128S" target="_blank" >GA23-05128S: Influence of textural and structural features on failure of transversely isotropic rocks examined using 4D X-ray computed tomography</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

ISRM International Symposium Eurock 2025

ISBN

978-82-8208-079-8

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

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Publisher name

Norsk Betongforening

Place of publication

Trondheim

Event location

Trondheim

Event date

Jun 16, 2025

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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