Assesing the Usage of Calcium and Magnesium Hydroxide Nanoparticles as Consolidant for Dolostones.

Date

2018-12-01

Author

Karahan Dağ, Fulya
Tavukçuoğlu, Ayşe

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

315
views

0
downloads

Dolostone has been abundantly used in the construction of monuments during archaeological periods in Anatolia. Several of those monuments have some decay problems to be assessed and need conservation treatments to be developed. In the study, it was aimed to prepare a nanodispersive solution from the dolostone itself and follow its carbonation mineral phases in order to obtain a compatible consolidation treatment for dolostone. A mixture of calcium and magnesium hydroxide nanodispersive solution in ethyl alcohol was prepared by using Midyatdolostone, starting with its thermal decomposition. The decomposition products, lime (CaO) and periclase (MgO), were slaked to obtain a mixture of portlandite (Ca(OH)2) and brucite (Mg(OH)2) which were then dispersed in ethanol. A number of petri dishes each containing around 20 ml of nanodispersive solution were prepared and put in a chamber with 85–90% RH and high CO2 concentration around 2500 ppm at room temperature for carbonation. The carbonation process of nanodispersive solution was followed at the end of 3rd, 7th, 17th, 21st and 28th days by using XRD, FTIR and SEM-EDX in order to identify mineral phases. At the end of the 3rd day, portlandite and brucite were completely carbonated to calcite (CaCO3) and nesquehonite (Mg(CO3)2.3H2O), respectively. Dolomite formation was observed to develop in association with nesquehonite and calcite in the following days. Those phases were monitored clearly by XRD and SEM-EDX.

Subject Keywords

Dolostone, Consolidation treatment, Nanodispersive solution, Calcium and magnesium hydroxide, XRD, SEM-EDX

URI

https://hdl.handle.net/11511/69401

DOI

https://doi.org/10.1007/978-3-319-78093-1_13

Collections

Graduate School of Natural and Applied Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Training Personnel For Architectural Conservation Erder, Cevat (Middle East Technical University, Faculty of Architecture, 1977) Efforts to protect historic monuments can be traced to the earliest construction of monumental structures. It is only over the past century, however, that there has been a conscious, , concerted movement to conserve architectural heritage and to train specialists to carry out this task. At an international level there has been persistent, repeated and widespread recognition that the training of these specialists is one of the central issues in the success or failure of conservation prngranrnr^. Yet ironical...
Improved methodology for identification of Goktepe white marble and the understanding of its use: A comparison with Carrara marble Wielgosz-Rondolino, Dagmara; Antonelli, Fabrizio; Bojanowski, Maciej J.; Gladki, Marcin; Göncüoğlu, Mehmet Cemal; Lazzarini, Lorenzo (2020-01-01) The provenance of marbles used for ancient statuary and architecture is of utmost importance for archaeologists, art historians and archaeometrists. The aim of this paper is to provide a comprehensive characterisation of the white marble exploited in antiquity in Goktepe (Mugla Province, Turkey) to increase the reliability for identifying this marble in ancient artefacts. A campaign of interdisciplinary archaeological and geological fieldwork undertaken by the Marmora Asiatica project is based on a multi-me...
Repair Phases of Suleymaniye Complex in Damascus Şahin Güçhan, Neriman; Kuleli, Ayşe Esin (Middle East Technical University, Faculty of Architecture, 2018-6-28) Süleymaniye Complex in Damascus, built on the bank of Barada River as the last stop before the desert on the pilgrimage route extending from the Balkans to Mecca, is one of the works of Hassa Chief Architect Sinan, which was designed according to the basic principles of the Ottoman classical period architecture, and built between 1554 and 1559. Many research has been carried out on the historical and architectural features of the complex, which is composed of the mosque that is also known as the “Takiyah Sü...
Materials analyses guiding for repairs in conservation: An Historical Bath Structure “Yeni Hamam” in Sivrihisar, Turkey Madani, Nigar; Çetin, Özlem; Erol, Fatıma; Tavukçuoğlu, Ayşe; Mısır, Çağkan Tunç; Güney, Bilge Alp; Caner Saltk, Emine Nevin (null; 2017-05-29) The Ottoman baths which have survived for hundreds of years are the historical structures still keeping their authentic architectural and technological properties. The study deals with the discovery of the knowledge on materials technology that contributes to the long-term durability of those structures. The authentic materials of an 18 th century Ottoman bath structure, Yeni Hamam (Sivrihisar, Turkey) were examined in this regard, in order to define the specifications for compatible repair materials which ...
Conservation of Urban Space as an Ontological Problem Günay, Baykan (Middle East Technical University, Faculty of Architecture, 2009) The objects of conservation are known in the western languages by such epistemologies as heritage, historical building, monument, site, or beauty. Such a terminology exists in Turkish too, however, either consciously or unconsciously, legislation in Turkey rests on the notion of natural and cultural beings (tabiat ve kültür varlıkları). In spite of such a sophisticated definition, and that Turkey has a well developed legislation concerning conservation; it is hard to say that the society as a whole finds th...

Citation Formats

F. Karahan Dağ and A. Tavukçuoğlu, “Assesing the Usage of Calcium and Magnesium Hydroxide Nanoparticles as Consolidant for Dolostones.,” 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/69401.