Shelters, as preventive conservation methods, have traditionally been considered a better option than leaving the site exposed. However, there has been limited research on their effect on the preservation of heritage materials and, as a result, there is no clear scientific evidence to support sheltering. This study aims to provide the first rigorous scientific assessment of the effect of lightweight, open shelters on limestone deterioration at archaeological sites. A method based on the use of low-cost environmental monitoring equipment and limestone blocks and tablets (as indicators of decay) has been developed to determine the degree of protection provided by the shelters at the Bishop' Palace (Witney, England) and Hagar Qim (Malta). Preliminary visual assessments of the field sites were followed by 12-18 month exposure trials. Temperature extremes and fluctuations, frost events, relative humidity extremes and fluctuations, NaCl crystallisation events, solar radiation, wetting events, salt content, atmospheric pollutants and dust deposition were monitored. In addition, stone decay was studied by analysing changes in weight, elasticity, surface hardness, ultrasonic pulse velocity, surface colour, moisture content and general appearance (microscopic and macroscopic pictures) in stone samples. An exhaustive assessment of the shelter at the Bishop's Palace was carried out using Chalk, Cotswold and Portland limestone blocks as well as Portland limestone tablets (specifically for studying dissolution, soiling and biological growth). Additionally, a comparative assessment of the effects of the two shelters in contrasting climatic environments, the Bishop's Palace (temperate maritime) and Hagar Qim (Mediterranean), was undertaken by monitoring Globigerina and Coralline limestone blocks simultaneously at both sites. The research has shown that lightweight, open shelters do not exclude decay completely but minimise it. However, there are some areas at higher risk of decay, i.e. top parts of the walls and the periphery. In addition, problems with the shelter design can enhance some decay mechanisms, such as biocolonisation on the periphery at the Bishop's Palace and dust deposition under the shelter at Hagar Qim. Therefore, the effectiveness of shelters should not be assumed.

Call number: LD2668 .T4 1978 A55 / Master of Science

The present thesis is a critical introduction to a body of writings on heritage conservation by the Czech-born art historian Max Dvořák (1874–1921). From 1905 onwards, Dvořák was both professor of art history at the University of Vienna and Conservator General at the state institution responsible for heritage conservation in Austria: the ‘Royal and Imperial Central Commission for the Research and Preservation of Artistic and Historical Monuments’ (est. 1850). His published and archival texts on the subject are presented here for the first time in English translation. In this sense, the thesis follows the model of existing scholarship on the visual arts in Vienna around 1900, namely the combined English translations and critical introductions to the writings of Camillo Sitte (Collins & Collins, 1986), Otto Wagner (Mallgrave, 1988) and Alois Riegl (Forster & Ghirardo, 1982). A translation-based approach to foreign textual sources is essential to cross-cultural understanding in the study of art and architectural history, particularly in the case of German, which is no longer accessible to the great majority of scholars working in these fields. As an introduction to Dvořák’s Denkmalpflege, this thesis provides the historical context necessary for an informed reading of the texts and, on this basis, evaluates his considerable contribution to the conservation of Austrian cultural heritage. The institutional history of the Central Commission and the emergence of modern conservation theory around the turn of the century are outlined as the preconditions of Dvořák’s activity, which included inventorization, institutional reform, published propaganda and a number of case-specific polemics. His responses to conservation issues in Vienna and Split are analyzed in detail as representative case studies from the centre and periphery of the empire, where modern conservationists were fighting a battle on two fronts against the incursions of modernity on the one hand and the destructive practices of nineteenth-century restoration on the other. Dvořák’s close collaboration with the Austrian heir apparent Franz Ferdinand is then investigated, followed by a critique of his reaction to the devastation of the First World War. In each case, it is argued that the state administration of cultural heritage in late Habsburg Austria, with its diverse peoples, languages and histories, was an inherently political issue and part of a cultural effort to preserve the empire itself.

No description available.

published_or_final_version / abstract / Conservation / Master / Master of Science in Conservation

published_or_final_version / abstract / Conservation / Master / Master of Science in Conservation

published_or_final_version / abstract / China Development Studies / Master / Master of Arts

No description available.

This study assesses the growing field of green building for its potential impact on the field of historic preservation. It is designed to provide a starting point for building owners and professionals in the industry seeking to gain LEED-EB certification on a historic structure. The potential impact of each LEED-EB credit to adversely affect historic fabric is evaluated for preservation, rehabilitation and reconstruction projects as defined by the Secretary of the Interior. Strategies for gaining certification for historic structures are discussed. Recommendations for further growth between the fields of historic preservation and green building are given. Early projects that combine historic preservation and green building are briefly discussed. / Department of Architecture

Digitized by Kansas Correctional Industries / Department: Architecture.