skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mineralogy, geochemistry and expansion testing of an alkali-reactive basalt from western Anatolia, Turkey

Abstract

In this paper, the alkali-silica reaction performance of a basalt rock from western Anatolia, Turkey is reported. It is observed that the rock causes severe gel formation in the concrete microbar test. It appears that the main source of expansion is the reactive glassy phase of the basalt matrix having approximately 70% of SiO{sub 2}. The study presents the microstructural characteristics of unreacted and reacted basalt aggregate by optical and electron microscopy and discusses the possible reaction mechanism. Microstructural analysis revealed that the dissolution of silica is overwhelming in the matrix of the basalt and it eventually generates four consequences: (1) Formation of alkali-silica reaction gel at the aggregate perimeter, (2) increased porosity and permeability of the basalt matrix, (3) reduction of mechanical properties of the aggregate and (4) additional gel formation within the aggregate. It is concluded that the basalt rock is highly prone to alkali-silica reaction. As an aggregate, this rock is not suitable for concrete production.

Authors:
 [1];  [2];  [3]
  1. Delft University of Technology, Faculty of CiTG, Materials and Environment, Stevinweg 1, 2628CN, Delft (Netherlands)
  2. Ege University, Civil Engineering Dept., 35100 Bornova, Izmir (Turkey)
  3. Burgemeester Merkusstraat 5, 2645 NJ, Delfgauw (Netherlands)
Publication Date:
OSTI Identifier:
22066106
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 60; Journal Issue: 7; Conference: 11. Euroseminar on microscopy applied to building materials (EMABM), Porto (Portugal), 5-9 Jun 2007; Other Information: Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BASALT; CONCRETES; ELECTRON MICROSCOPY; GELS; GEOCHEMISTRY; MATERIALS TESTING; MATRIX MATERIALS; MECHANICAL PROPERTIES; MICROSTRUCTURE; MINERALOGY; PERMEABILITY; POROSITY; POROUS MATERIALS; REACTION KINETICS; SILICA; TURKEY

Citation Formats

Copuroglu, Oguzhan, Andic-Cakir, Ozge, Broekmans, Maarten A.T.M., and Kuehnel, Radko. Mineralogy, geochemistry and expansion testing of an alkali-reactive basalt from western Anatolia, Turkey. United States: N. p., 2009. Web. doi:10.1016/J.MATCHAR.2008.09.011.
Copuroglu, Oguzhan, Andic-Cakir, Ozge, Broekmans, Maarten A.T.M., & Kuehnel, Radko. Mineralogy, geochemistry and expansion testing of an alkali-reactive basalt from western Anatolia, Turkey. United States. https://doi.org/10.1016/J.MATCHAR.2008.09.011
Copuroglu, Oguzhan, Andic-Cakir, Ozge, Broekmans, Maarten A.T.M., and Kuehnel, Radko. 2009. "Mineralogy, geochemistry and expansion testing of an alkali-reactive basalt from western Anatolia, Turkey". United States. https://doi.org/10.1016/J.MATCHAR.2008.09.011.
@article{osti_22066106,
title = {Mineralogy, geochemistry and expansion testing of an alkali-reactive basalt from western Anatolia, Turkey},
author = {Copuroglu, Oguzhan and Andic-Cakir, Ozge and Broekmans, Maarten A.T.M. and Kuehnel, Radko},
abstractNote = {In this paper, the alkali-silica reaction performance of a basalt rock from western Anatolia, Turkey is reported. It is observed that the rock causes severe gel formation in the concrete microbar test. It appears that the main source of expansion is the reactive glassy phase of the basalt matrix having approximately 70% of SiO{sub 2}. The study presents the microstructural characteristics of unreacted and reacted basalt aggregate by optical and electron microscopy and discusses the possible reaction mechanism. Microstructural analysis revealed that the dissolution of silica is overwhelming in the matrix of the basalt and it eventually generates four consequences: (1) Formation of alkali-silica reaction gel at the aggregate perimeter, (2) increased porosity and permeability of the basalt matrix, (3) reduction of mechanical properties of the aggregate and (4) additional gel formation within the aggregate. It is concluded that the basalt rock is highly prone to alkali-silica reaction. As an aggregate, this rock is not suitable for concrete production.},
doi = {10.1016/J.MATCHAR.2008.09.011},
url = {https://www.osti.gov/biblio/22066106}, journal = {Materials Characterization},
issn = {1044-5803},
number = 7,
volume = 60,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2009},
month = {Wed Jul 15 00:00:00 EDT 2009}
}