CHARACTERIZATION OF EPOXY RESIN AND SILLE STONE POWDER BASED COMPOSITE MORTARS

Abstract

Sille stone, extracted from the Sille region of Konya (Türkiye) province, is an andesitic stone used in the construction of historical buildings. Sille stone is subject to deterioration due to long-term natural and environmental factors. Repair mortars are used to prevent damage to the stones used in the construction of historical buildings. In this study, Epoxy resin (ER)/Sille stone powder (SSP) composite mortars were produced for the restoration of historical buildings and the properties of these composite mortars were investigated. In the production of composite mortars were prepared by contributing SSP into epoxy resin in varied ratios such as 60-75% wt.%. When 60% SSP filler was added to the ER matrix, the compressive strength of the resulting composite increased by approximately 66% compared to neat ER. Moreover, an increase in mechanical strength and a decrease in water absorption were observed in composite mortars due to the increase in SSP. In conclusion, the high strength, low water absorption rate and pore properties of epoxy matrix composite mortars provide great potential for restoration applications of historical buildings constructed from Sille stone.

Keywords

• Characterization
• Composite Mortar
• Cultural Heritage
• Sille Stone

Supporting Institution

Konya Technical University

Project Number

211120045

Thanks

This study was prepared by utilizing the doctoral thesis titled ‘‘Production and Characterization of Natural Stone Powder and Polymer Binding Mortars for the Repair of Historic Buildings; Sille Stone Example” made by Ahmet Cihat ARI under the supervision of Mustafa TOSUN and completed in March 2023. This study was supported by Konya Technical University Scientific Research Projects Commission within the scope of PhD (project number 211120045). The authors are grateful for the support provided by Konya Technical University (Türkiye). Analyzes in the study were carried out in the laboratory of Necmettin Erbakan University, Science and Technology Research and Application Center (BITAM). We would like to thank the staff of BİTAM for their assistance.

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