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The Effect of the Archeological and Architectural Nature of the Cities on the Form and Design of Public Transportation Vehicles Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Evaluation of Applied Polymer Treatments for Egyptian Tura-Ma’sara and Mokattam Limestone Monuments

Author : Hatem Tawfik Ahmed

Published in: Conservation of Architectural Heritage

Publisher: Springer International Publishing

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Abstract

In order to repair and preserve weathered limestone architecture, sculptures, carved facades, and monuments, it is necessary to study the efficiency of treatments and the alteration mechanisms of physical and mechanical properties prior to their application in the field. In this chapter, we describe the results of a laboratory evaluation carried out on stone consolidants: silica-acid-ester (Wacker-OH), aliphatic-urethane resin (Z.K.F.), acrylate resin (ACR), and polymethyl methacrylate (PMMA), to ascertain the effectiveness of stone treatments applied on fresh Mokattam and Tura-Ma’sara limestone—extensively used in ancient Egypt (e.g., Saqqara and Giza Plateau). The studied limestones are of marine origin and are characterized by high porosity and relatively low strength. Observations and tests for assessing the performance of surface treatments include use of a scanning electron microscope (SEM) coupled with energy dispersive spectrometry (EDS); mechanical strength tests, such as uniaxial compressive strength tests (UCS), compared with Duroscope rebound values; rate of water vapor diffusion; and the use of hydrochloric acid to artificially age samples. The results provide important information for conservation and restoration work, helping design replacement material for historically damaged zones.

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previous chapter Architectural and Urban Expression in Nubian Village Origins and Transformation with Special Reference to Displacement Villages
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Metadata
Title
Evaluation of Applied Polymer Treatments for Egyptian Tura-Ma’sara and Mokattam Limestone Monuments
Author
Hatem Tawfik Ahmed
Copyright Year
2019
Book
Conservation of Architectural Heritage

Print ISBN: 978-3-030-10870-0

Electronic ISBN: 978-3-030-10871-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-10871-7_22