![]() ![]() In mixture of some patches I recognized pozzolana ash, in a relevant proportion. They had made different types of mortar in order to get very low porosity plasters. Even with no instrumental survey on the samples, the patches' position and mixture showed that in the past maintenance workers had realized that the problem to be solved was the inhibition of water penetration from the outside. In fact, many of the oldest buildings in Inhambane present quite a number of plastering patches it is thus possible to compare samples of plaster in their time sequence in order to identify the different degrees of technical skills, strength and effectiveness. In a simple visual exploration of the oldest buildings in town, it was noted that the phenomenon of salt crystallisation must always have been present since their construction. They asked the Faculdade de Arquitectura in Maputo to assess the disintegration phenomenon of plasters reappeared on the church soon after restoration works and to suggest some procedure for achieve a regular course of the scheduled event1.ĭuring my survey in Inhambane I was convinced that the major problem of deterioration in the church of Nossa Senhora da Conceit^ao was caused by the migration of salts through the walls and that the slight deformation due to the collapse of the wall area facing southeast was to be considered stable. Peer-review under responsibility of IEREK, International experts for Research Enrichment and Knowledge Exchange doi:10.1016/j.sbspro.2016.06.007 This is an open access article under the CC BY-NC-ND license (). The German Cooperators' intention was to use the recently restored church of Inhambane for an archaeological exhibition. My interest in coral stone buildings began in 2004 with the request for an opinion from the Director of the Cooperado Técnica da República Federal da Alemanha in Mozambique (former GTZ, now GIZ). Keywords: coral stone conservation soluble salts tropical coasts, murrapa. Peer-review under responsibility of IEREK, International experts for Research Enrichment and Knowledge Exchange Thisis an open access article under the CC BY-NC-ND license (). ©2016 The Authors.PublishedbyElsevierLtd. Finally, the paper proposes the idea of preserving historic coastal settlements in an optimal equilibrium with natural environment assets. But the techniques of the past, when known to the restorer, can suggest the best way for the restoration and maintenance practices (Some topics of this theme: lime from coral - sand fluvial from the Ibo Island - murrapa juice, as an additive for mortar). Knowledge and mastery of the physical and chemical phenomena in coral stone buildings are the basis of the preservation process. After many observations at sites such as Inhambane, Ilha de Mozambique and Ilha de Ibo, we think that the phenomenon of regeneration of soluble salts is the main cause of degradation of coral stone buildings. Swahili architecture and European colonial architecture are part of this heritage. Much of the architectural heritage on the coast of East Africa was built with coral limestone and today it suffers from a severe decay. Universidade Lurio, Faculdade de Arquitetcura e Planeamento Fisico, Bairro de Marrere, Rua 4250, Km 2,3, Nampula 3100, Mogambique "Conservation ofArchitectural Heritage, CAH" 23-27 November 2015, LuxorĬonservation of coral stone architectural heritage on the coast of Procedía - Social and Behavioral Sciences 225 (2016) 47 - 56 But the techniques of the past, when known to the restorer, can suggest the best way for the restoration and maintenance practices (Some topics of this theme: lime from coral - sand fluvial from the Ibo Island - murrapa juice, as an additive for mortar).įinally, the paper proposes the idea of preserving historic coastal settlements in an optimal equilibrium with natural environment assets. ![]() After many observations at sites such as Inhambane, Ilha de Moçambique and Ilha de Ibo, we think that the phenomenon of regeneration of soluble salts is the main cause of degradation of coral stone buildings. Abstract of research paper on Agriculture, forestry, and fisheries, author of scientific article - Maurizio Berti ![]()
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