Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia

The extraction and processing of aggregates in quarrying operations leads to environmental degradation through various engineering methods. This study investigated the geo-engineering properties of tertiary volcanic rocks mined from various sites in Sleman and Bantul District, Yogyakarta Province. A...

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Main Authors: Wawan Budianta, I Wayan Warmada, Ohta Hideki, Jiro Takemura
Format: Article
Language:English
Published: University of Brawijaya 2025-04-01
Series:Journal of Degraded and Mining Lands Management
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Online Access:https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17054
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author Wawan Budianta
I Wayan Warmada
Ohta Hideki
Jiro Takemura
author_facet Wawan Budianta
I Wayan Warmada
Ohta Hideki
Jiro Takemura
author_sort Wawan Budianta
collection DOAJ
description The extraction and processing of aggregates in quarrying operations leads to environmental degradation through various engineering methods. This study investigated the geo-engineering properties of tertiary volcanic rocks mined from various sites in Sleman and Bantul District, Yogyakarta Province. A total of twelve rock samples were obtained from the study area. This study conducted mineralogical and geotechnical engineering investigations, including microscopic analysis, unconfined compressive strength (UCS) tests, abrasiveness tests (CAI), and rock abrasivity index (RAI) calculations. Mineralogical observation using polarisation microscopy indicated that the rock samples consist of quartz, plagioclase, lithic fragments, and volcanic glass. The UCS test showed varying rock strengths due to resistant minerals in the samples. Similarly, the CAI values varied and were influenced by the quartz mineral content, which is representative of resistant minerals. The Rock Abrasivity Index (RAI) calculation classified the samples as less abrasive, and this characteristic is also affected by quartz content. A significant correlation was observed between the quartz mineral content and the UCS, CAI, and RAI values. This relationship suggests that the quartz mineral content substantially affects the UCS, CAI, and RAI values of the rock samples in the study area. The findings of this study can be used to enhance mining practices and minimize their ecological impact.
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series Journal of Degraded and Mining Lands Management
spelling doaj-art-2b4fa9cc1ee6458f9cfd50651714de162025-08-20T01:50:37ZengUniversity of BrawijayaJournal of Degraded and Mining Lands Management2339-076X2502-24582025-04-011237839784610.15243/jdmlm.2025.123.783917056Geo-engineering characterization of mining material: A case study in Yogyakarta, IndonesiaWawan Budianta0https://orcid.org/0000-0002-5197-2235I Wayan Warmada1https://orcid.org/0000-0002-1265-180XOhta Hideki2Jiro Takemura3https://orcid.org/0000-0002-7460-921XDepartment of Geological Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia Department of Geological Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia Geotechnical Engineering Research Group, Tokyo Institute of Technology, JapanGeotechnical Engineering Research Group, Tokyo Institute of Technology, JapanThe extraction and processing of aggregates in quarrying operations leads to environmental degradation through various engineering methods. This study investigated the geo-engineering properties of tertiary volcanic rocks mined from various sites in Sleman and Bantul District, Yogyakarta Province. A total of twelve rock samples were obtained from the study area. This study conducted mineralogical and geotechnical engineering investigations, including microscopic analysis, unconfined compressive strength (UCS) tests, abrasiveness tests (CAI), and rock abrasivity index (RAI) calculations. Mineralogical observation using polarisation microscopy indicated that the rock samples consist of quartz, plagioclase, lithic fragments, and volcanic glass. The UCS test showed varying rock strengths due to resistant minerals in the samples. Similarly, the CAI values varied and were influenced by the quartz mineral content, which is representative of resistant minerals. The Rock Abrasivity Index (RAI) calculation classified the samples as less abrasive, and this characteristic is also affected by quartz content. A significant correlation was observed between the quartz mineral content and the UCS, CAI, and RAI values. This relationship suggests that the quartz mineral content substantially affects the UCS, CAI, and RAI values of the rock samples in the study area. The findings of this study can be used to enhance mining practices and minimize their ecological impact.https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17054caiengineering propertiesraitertiary volcanic rockucs
spellingShingle Wawan Budianta
I Wayan Warmada
Ohta Hideki
Jiro Takemura
Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia
Journal of Degraded and Mining Lands Management
cai
engineering properties
rai
tertiary volcanic rock
ucs
title Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia
title_full Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia
title_fullStr Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia
title_full_unstemmed Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia
title_short Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia
title_sort geo engineering characterization of mining material a case study in yogyakarta indonesia
topic cai
engineering properties
rai
tertiary volcanic rock
ucs
url https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17054
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AT ohtahideki geoengineeringcharacterizationofminingmaterialacasestudyinyogyakartaindonesia
AT jirotakemura geoengineeringcharacterizationofminingmaterialacasestudyinyogyakartaindonesia