Evaluation the Calcium hydroxide Nanoparticles for the Consolidation of Alabaster on Karnak Temples Luxor – Egypt

Document Type : Original Article

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1 Aswan- Aswan University- Faculty of Archaeology

2 aswan university

Abstract

-Abstract

-Abstract

Alabaster is an ornamental stone that was widely used in ancient Egypt and it had a lot of deterioration factors. The present Study deals with the type of alabaster that located at the quarries, and their durability and geotechnical characteristics. These characteristics were examined before and after treatment using analytical methods. Physical and mechanical properties were carried out on samples from quarries. The study was also aimed to evaluate the efficiency of the Calcium hydroxide nanoparticles dispersed in ethanol at concentration of 10 g/L. This study Presents a novel techniques like the compute X-ray tomography (CT scan) as a non-destructive technique to capture the morphology of the alabaster internal structure , as well as the stone's grain texture and the surface features through 3D images and videos. Additionally, this research examines the ability of a Calcium hydroxide nanoparticles to consolidate the alabaster, which is also a novel approach that this study is introducing. It is worth noting that the alabaster at the Karnak temples has suffered harsh weather conditions such as groundwater and high temperature, which caused weakness of mechanical properties. This study presents a comprehensive Morphological and stpectroscopic study to confirm the efficiency of the nanomaterial in the consolidation of the alabaster structures. This study used cross-examination method using CT scan, SEM, and XRF analysis before and after consolidation. The final result shows that the Calcium hydroxide nanoparticles enhanced signifcantly the physical and mechanical properties of the alabaster.

- Key Words: (Alabaster – analysis –CT scan - investigation - consolidation)

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