By R. Prikryl, B. J. Smith
Stone constructions and monuments shape the cultural centres of a few of the world's city components. often those parts are liable to excessive degrees of atmospheric pollutants that advertise a number of competitive stone decay approaches. due to this, stone decay is now widely known as a critical danger to a lot of our cultural historical past. If this danger is to be effectively addressed it really is crucial that the indications of deterioration are basically pointed out, that acceptable stone houses are correctly characterised and that decay approaches are accurately pointed out. it really is surely the case that winning conservation needs to be underpinned through a entire figuring out of the reasons of degradation and the standards that keep an eye on them. The accomplishment of those challenging pursuits calls for an interdisciplinary strategy in response to co-operation among geologists, environmental scientists, chemists, fabric scientists, civil engineers, restorers and designers. In pursuit of this collaboration, this quantity goals to bolster the information base facing the factors, effects, prevention and answer of stone decay problems.Also to be had: GEOMATERIALS IN CULTURAL historical past - precise book no. 257 - ISBN 1862391955 common Stone, Weathering Phenomena, Conservation innovations and Case reviews - ISBN 1862391238 Stone: construction Stone, Rock Fill and Armourstone in building - ISBN 1862390290
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Extra resources for Building Stone Decay: From Diagnosis to Conservation - Special Publication no 271 (Geological Society Special Publication)
The importance of the stone also led to the creation of a specific guild of workers (pipernieri), which increased in importance from the 15th to the 18th century. The exploitation of Piperno continued mainly through the exploitation of underground quarries at Pianura, Soccavo and Verdolino. The environmental conditions were, however, very dangerous and, on 22 October 1739, 11 miners died as a consequence of a vault collapse while working in one of the underground quarries (Cardone & Papa 1993).
Backscattering scanning electron micrograph of a thin section of Piperno. their composition is distinguishable from the few phenocrysts present in the rock (Or6o_53). g. at Verdolino); these vertical channels testify to the wide degassing of the underlying Piperno unit. Electron microscopy observations (SEM) confirmed the above considerations and demonstrated the presence of feldspar crystals, with a typical tabular shape, growing on the glassy matrix (Fig. 5). The Pianura underground quarry One of the main aims of this research is to rediscover the former exploitation sites of Piperno, at the foot of the Camaldoli Hill.
The entrance of another important site on the Soccavo side of the hill was totally obliterated by dumped materials, whereas the Verdolino underground quarry, also located on the Soccavo side of the hill, was described in an old survey as having an extremely limited exploitation area (Cardone & Papa 1993). The above considerations led the study to focus on the underground quarry located in Pianura at Masseria del Monte. The study of this site started with a topographical survey carried out following the standard techniques adopted for spelaeological investigations.
Building Stone Decay: From Diagnosis to Conservation - Special Publication no 271 (Geological Society Special Publication) by R. Prikryl, B. J. Smith