Effectiveness assessment of paraloid B-72 enhanced with Nano materials to improve of mortars properties for conservation of Seti I temple in Al-Qurna, Thebes west bank, Egypt

Abstract This paper presents an experimental study to assessment of the potential effectiveness of four consolidation treatments performed with: Nano silica 5% dissolved in water, Nano lime 5% dissolved in ethanol, Paraloid B72 3% dissolved in toluene enhanced with Nano silica 5%, and Paraloid B72 3% dissolved in toluene enhanced with Nano lime 5% to improve the physical and mechanical properties of proposed completion mortars that will use to compensation of the missing parts of the sandstone. The experimental samples were exposed to artificial ageing cycles and investigated by several scientific techniques such as; X-Ray Diffraction (XRD), Polarized light microscope (PLM), Scanning Electron Microscopy (SEM) coupled with X-ray energy dispersive system (EDS), and the physical and mechanical properties tests to determine the appropriate mortar for the completion process. Results of this study indicated that the mortar which consolidated by 3% of paraloid B72 enhanced with 5% of Nano silica and 3% of paraloid B72 enhanced with 5% of Nano lime achieved the best results.