Preparation of pozzolanic lime mortars for repairing limestone of Nemrut Dag Monument

Date

2013-02-01

Author

Güney, Bilge Alp

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The aim of this study is to prepare pozzolanic lime mortars to be used for stone repairs such as sticking large detached scales, filling gaps and large cracks in the deteriorated limestone objects of Nemrut Dağ Monument in Adıyaman Turkey. Mortar samples from rubble stone masonry of Kahta Castle, a medieval structure, in close vicinity of the Nemrut Dağ Monument, were investigated to set an example for the preparation of repair mortars. Repair mortar mixtures were prepared by using laboratory grade Ca(OH)2, local river sand and two types of pozzolans; metakaolin and natural trass. Basic physico-mechanical properties of historic mortars and repair mortar cubes after 60 day curing period were determined. Both historic and repair mortars were investigated by optical microscopy and SEM-EDX, XRD, FTIR. Pozzolanic activity of the pozzolans used in this study, fine aggregates of historic mortars and fine aggregates of local river sand were investigated. CSAH and CSH were detected by XRD and SEM-EDX in the repair mortars prepared with added metakolin. After 60 days, the bulk density and effective porosity values of prepared repair mortar cubes were observed to be slightly lower than that of historic mortars. The compressive strength of prepared mortars with added metakaolin were quite near to the compressive strength historic mortars, however their carbonation were not yet completed. The results were further evaluated in comparison with historic mortars and for the preparation of compatible and durable repair mortars.

Subject Keywords

Pozzolanic lime mortars, Historic mortars, Repair mortars, Nemrut Dağ Monument

URI

https://hdl.handle.net/11511/78153

Conference Name

8th International Symposium on the Conservation of Monuments in the Mediterranean Basin: Monument Damage Hazards & Rehabilitation Technologies, (31 Mayıs - 02 Haziran 2010)

Collections

Department of Architecture, Conference / Seminar

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Citation Formats

B. A. Güney, “Preparation of pozzolanic lime mortars for repairing limestone of Nemrut Dag Monument,” presented at the 8th International Symposium on the Conservation of Monuments in the Mediterranean Basin: Monument Damage Hazards & Rehabilitation Technologies, (31 Mayıs - 02 Haziran 2010), 2013, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/78153.