Durmeková T., Grega D. & Tornyai R., 2019: A high potential of the micro-Deval test in rock quality assessment. Acta Geologica Slovaca, 11, 1, 1–9.
A high potential of the micro-Deval test in rock quality assessment
Tatiana Durmeková, Daniel Grega & Rudolf Tornyai
Comenius University in Bratislava, Faculty of Natural Sciences, Department of Engineering Geology, Ilkovičova 6, 842 15 Bratislava, Slovakia; tatiana.durmekova@uniba.sk
Abstract
The micro-Deval test which determines the micro-Deval coefficient is preferentially aimed at quality control assessment of aggregates being used in road construction. In first part of the study, the existing accessible database of rocks properties from 146 sites of Slovakia was used and the micro-Deval coefficient was analyzed in connection to other rock properties. Among others findings, the analysis indicated that the rock strength represented by the Uniaxial Compressive Strength is not conclusive for the micro-Deval coefficient values. In experimental part of the study, three types of rocks have been examined. In aim to evaluate rock quality for the use in aggregate production the micro-Deval test and other selected tests as magnesium sulphate test and freeze-thaw test have been realised. Additional quick tests as Point load test and Slake durability test, routinely used in the rock testing, as well as modifications of the micro-Deval test in dry version have been also performed. It was confirmed that the micro-Deval test provides a high predicative values, gives conformable results in comparison with other tests for aggregates and so it can serve as a good and reliable tool on the rock quality determination. Very good relationship was shown between the results of Slake durability test and micro-Deval test. The realization of micro-Deval test performed on aggregates, which have previously passed an accelerated weathering tests, point out to broader possibilities of the use of micro-Deval tests, mainly their utilization for the monitoring of changes in aggregates quality after some other tests.
Key words: micro-Deval test, resistance to wear, aggregates quality control testing, UCS, Point load test, Slake durability test, aggregate tests feasibility analysis
Manuskript doručený: 2019-01-01
Manuskript revidovaný: 2019-05-30
Informácie
Pripravované články
AGEOS 2024, roč. 16, č. 2
- Hyžný M. & Mihálik D.: Decapod crustacean assemblage from the middle Miocene (Badenian) of the Oslip sand pit, Austria (Eisenstadt-Sopron Basin)
- Lačný A., Vojtko R., Dušeková L. & Čahojová L.: Dolines as important indicators of lithology and tectonics: A case study of the Malé Karpaty Mts. (Western Carpathians)
- Dugovič R. & Malík P.: Drought hazard assessment using GIS Comparison of groundwater runoff of three different hydrogeological units in the Western Carpathians determined by Kille’s and hydrograph separation methods
- Tornyai R. & Koudelka D.: Utilisation of airborne laser scanning data in landslide hazard assessment – case study Čadca district, Slovakia
- Bláha P., Niyazov R., Abdullaev S., Motorniy I. & Lazecký M.: Human-induced landslides in the Angren coal district, Uzbekistan
Archív
- AGEOS 2024, roč. 16, č. 2
- AGEOS 2024, roč. 16, č. 1
- AGEOS 2023, roč. 15, č. 2
- AGEOS 2023, roč. 15, č. 1
- AGEOS 2022, roč. 14, č. 2
- AGEOS 2022, roč. 14, č. 1
- AGEOS 2021, roč. 13, č. 2
- AGEOS 2021, roč. 13, č. 1
- AGEOS 2020, roč. 12, č. 2
- AGEOS 2020, roč. 12, č. 1
- AGEOS 2019, roč. 11, č. 2
- AGEOS 2019, roč. 11, č. 1
- AGEOS 2018, roč. 10, č. 2
- AGEOS 2018, roč. 10, č. 1
- AGEOS 2017, roč. 9, č. 2
- AGEOS 2017, roč. 9, č. 1
- AGEOS 2016, roč. 8, č. 2
- AGEOS 2016, roč. 8, č. 1
- AGEOS 2015, roč. 7, č. 2
- AGEOS 2015, roč. 7, č. 1
- AGEOS 2014, roč. 6, č. 2
- AGEOS 2014, roč. 6, č. 1
- AGEOS 2013, roč. 5, č. 2
- AGEOS 2013, roč. 5, č. 1
- AGEOS 2012, monografia
- AGEOS 2012, roč. 4, č. 2
- AGEOS 2012, roč. 4, č. 1
- AGEOS 2011, roč. 3, č. 2
- AGEOS 2011, roč. 3, č. 1
- AGEOS 2010, roč. 2, č. 2
- AGEOS 2010, roč. 2, č. 1
- AGEOS 2009, roč. 1, č. 2
- AGEOS 2009, roč. 1, č. 1
- AGEOS 2009, monografia