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Comparison of different-energy-level abrasion in Los Angeles and micro-Deval apparatuses using mass loss and rounding of sediment particles
ID Kuzmanić, Tamara (Avtor), ID Lebar, Klaudija (Avtor), ID Mikoš, Matjaž (Avtor)

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Izvleček
During the routing of coarse particles in sedimentary environments, the particles are subjected to abrasion, leading to mass loss and changes in the particles’ morphology. The particles become more spherical, rounded, and smooth. Here, particles’ (quarried dolomite) morphological evolution of three shape aspects (form, roundness, and texture) and the mass decreases obtained in two sets of experiments in two different setups are presented. Abrasion experiments were carried out in cycles. Between cycles, morphological parameters and mass losses were tracked. Abrasion was investigated with consideration of the energy and power the apparatuses used that the material was subjected to, in contrast to the often-used estimated travel distances or duration of the abrasion. The goal was to examine if the two setups can be comparable and inter-transferrable, also to other similar abrasion setups. The experimental equipment, a micro-Deval apparatus and a Los Angeles machine, are standardised and widely used. The applied tests were modified. Morphological/shape parameters were determined using dynamic image analysis. The results of the tests show the influence of machine power (energy introduction rate) on mass loss and morphological change. Los Angeles (high-energy) abrasion resulted in higher mass loss values than micro-Deval (low-energy) abrasion. The mass loss results can be brought to comparable values by a newly introduced mass- and powerdependent coefficient. Low-energy abrasion resulted in faster rounding than high-energy abrasion, whereas form stayed nearly the same. In contrast, form changed rapidly during high-energy abrasion.

Jezik:Angleški jezik
Ključne besede:abrasion, micro-Deval test, Los Angeles test, energy-based abrasion, particle morphology evolution, dynamic image analysis
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2023
Št. strani:19 str.
Številčenje:Vol. 13, iss. 10, art. 6102
PID:20.500.12556/RUL-146420 Povezava se odpre v novem oknu
UDK:55:566.1
ISSN pri članku:2076-3417
DOI:10.3390/app13106102 Povezava se odpre v novem oknu
COBISS.SI-ID:152620803 Povezava se odpre v novem oknu
Datum objave v RUL:31.05.2023
Število ogledov:692
Število prenosov:64
Metapodatki:XML DC-XML DC-RDF
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Gradivo je del revije

Naslov:Applied sciences
Skrajšan naslov:Appl. sci.
Založnik:MDPI
ISSN:2076-3417
COBISS.SI-ID:522979353 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:abrazija, micro-Deval test, Los Angeles test, energijsko pogojena abrazija, evolucija morfologije zrn, dinamična analiza slik

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0180
Naslov:Vodarstvo in geotehnika: orodja in metode za analize in simulacije procesov ter razvoj tehnologij

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