Academic thesis
| Abstract: |
Subject of this work is the elaboration of a maintenance and conservation plan of the antic water-systems to protect the rock-carved fayades in Petra, Jordan. The two millennium old tomb fayades of Petra are increasing endangered by weathering and deterioration. Most of the damage appears in weathering, caused by salt and uncontrolled running-down rain-water. The damaging action of water and salt has been investigated on stone sampies of Petra. Therefor the properties of the sampled stones have been established and salt-destroying-tests done. In an empirical part of the research, a method, developed in order to measure the damage-rate and intensity, have been applied to 14 monuments of the so-called "Kings wall". A monitoring concerning 211 monuments has been carried out and immediate measures have been suggested. The water-systems of a 2km2 area have been recorded and mapped, recommendations for their conservation and partial reactivation have been given. Knowledge to the engineer abilities and build techniques of the Nabatheans could be collected. Exemplary, an hydraulic mortar has been studied following material technical methods, as well as scientific investigations. The mortar study was made by sieve-analysis and thin-sections additionally measured by an electron-ray micro-sond (EEMS). The mortar has been identified as a three components system of coarse-grains, lime and a pozzolanic silicate additive, product of stone weathering. A compatible mortar has been developed, based on these results, which successfully passed model-experiment tests. The measurements of the monitoring and the building mappings showed that more that half of the stone-carved fayades that were protected by a water-channel kept over 20% of their plastic decoration. A 50% average damage-rate as been found for the mapped monument.
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| Details: |
- academic institution: HAWK Hochschule für angewandte Wissenschaft und Kunst Hildesheim/Holzminden/Göttingen
- kind of theses: Diplomarbeit
- main Tutor: Prof. Jan Schubert
- assistant Tutor: Dr. Helge Fischer
- date: 2003
- Language: German
- pages: 260
- pictures: 162
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