Investigation of Salt Weathering on Stone Monuments by Use of a Modern Wireless Sensor Network Exemplified for the Rock-Cut Monuments in Petra/Jordan – A Research Project (2010 – 2013)

Abstract

Experience has shown that salt weathering represents a major cause of damage on stone monuments. Despite many years of intensive research, processes of salt weathering still can not be explained satisfactorily. The lack of knowledge impedes reliable damage prognosis as well as selection and implementation of appropriate and sustainable monument preservation measures. The overall aim of the “petraSalt” research project is to improve knowledge of salt weathering on stone monuments. The methodological approach combines assessment of weathering damage and monument exposure characteristics, laboratory analysis of salt loading and continuous monument environmental monitoring by use of innovative wireless sensor network technology. In order to ensure findings of high transferability, the rock-cut monuments of Petra / Jordan were selected for studies, as stone type and spectra of monument exposure regimes, environmental influences, salt loading and weathering damage are very representative for a multitude of stone monuments worldwide.