Petrographic Characteristics of Sandstones as a Basis to Evaluate Their Suitability in Construction and Energy Storage Applications. A Case Study from Klepa Nafpaktias (Central Western Greece)

Petros Petrounias, Panagiota P. Giannakopoulou, Aikaterini Rogkala, Maria Kalpogiannaki, Petros Koutsovitis, Maria-Elli Damoulianou and Nikolaos Koukouzas
Additional contact information
Petros Petrounias: Section of Earth Materials, Department of Geology, University of Patras, 26504 Patras, Greece
Panagiota P. Giannakopoulou: Section of Earth Materials, Department of Geology, University of Patras, 26504 Patras, Greece
Aikaterini Rogkala: Section of Earth Materials, Department of Geology, University of Patras, 26504 Patras, Greece
Maria Kalpogiannaki: Section of Earth Materials, Department of Geology, University of Patras, 26504 Patras, Greece
Petros Koutsovitis: Section of Earth Materials, Department of Geology, University of Patras, 26504 Patras, Greece
Maria-Elli Damoulianou: Section of Earth Materials, Department of Geology, University of Patras, 26504 Patras, Greece
Nikolaos Koukouzas: Chemical Process & Energy Resources Institute, Centre for Research & Technology Hellas (CERTH), Maroussi, 15125 Athens, Greece

Energies, 2020, vol. 13, issue 5, 1-21

Abstract: This study investigates how the petrographic features of Klepa Nafpaktias sandstones affect their behavior in construction applications such as concrete, in environmental applications such as energy storage as well as whether they are suitable for the above uses. For achieving this goal, sandstones (ten samples) were collected in order to study their petrographic characteristics using petrographic microscope and GIS software, as well as their basic physical, mechanical and physicochemical properties were also examined. Concrete specimens (C25/30) were made according to international standards including the investigated aggregate rocks in various grain sizes. Various sandstones were tested and classified in three district groups according to their physicomechanical features as well as to their petrographic and microtopographic characteristics. Concrete strength’s results determined the samples into three groups which are in accordance with their initial classification which was relative to their grain size (coarse to fine-grained). As the grain size decreases their physicomechanical and physicochemical properties get better resulting in higher concrete strength values (25 to 32 MPa). Furthermore, the proposed ratio C/A (crystals/mm 2 ) seems to influence the aggregate properties which constitute critical factors for the final concrete strength, presenting the more fine-grained sandstones as the most suitable for concrete aggregates. Concerning the use of Klepa Nafpaktias sandstones as potential energy reservoirs, the studied sandstones presented as suitable for CO 2 storage according to their physicomechanical characteristics.

Keywords: petrographic characteristics; sandstones; physicomechanical properties; concrete petrography; CO 2 storage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/5/1119/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/5/1119/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:5:p:1119-:d:327390

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().