NMC: Recent submissions

Now showing items 201-220 of 323

Evaluation of the strengthening effect of consolidants applied on porous and fissured substrates

Costa, D.; Delgado Rodrigues, J. (2012-10-22)

The evaluation of the efficacy of stone consolidant treatments is a very important step in the selection process of the product to be used in a real situation. The procedure to select the appropriate product should be a ...
Consolidation of a porous limestone with nanolime

Costa, D.; Delgado Rodrigues, J. (2012-10-22)

This communication work reports the laboratory experiments with a nanolime product applied to the highly porous limestone currently used in Portuguese architectural heritage. The tests aimed at evaluating the short-term ...
Drying of porous materials.

Gonçalves, T. D. (2012-05-08)

Moisture is a cause of anomalies and health-related problems in historical constructions. Porous material damage often takes place during evaporative drying processes, especially when soluble salts are present. This lecture ...
Case-studies in plastering and rendering mortars. Sampling and testing for salts.

Gonçalves, T. D. (2012-05-16)

In this lecture four historic buildings in Portugal with significant salt decay problems are discussed as regards their pathology and repair measures. The lecture has the following contents: 1 Four case studies in ...
The erosion of granite surfaces. The cathedral of Évora as example

Costa, D. (Universidade de Santiago de Compostela, 2012-10-03)

ABSTRACT: The evaluation of the erosion in the stone surfaces of a granitic monument highlights the severity of decay due to the presence of salts. The method used and reported here integrates different but relevant ...
Repair mortars. Working principles and typical properties.

Gonçalves, T. D. (2012-05-15)

Mortars used in construction are composed by the aggregate, the binder and possibly also some additives. They also require water to form a workable paste. In building conservation, mortars are used principally as plasters ...
Characterization of mortars using drilling resistance measurement system (DRMS): tests on field panels samples

Costa, D.; Magalhães, A.; Veiga, M. R. (Springer, 2012-03)

Non-destructive or micro-destructive in situ tests are very relevant to the physical characterization of materials used in historical buildings. “Controlled penetration,” “sphere shock” and “sonic methods” can be used to ...
Salts as major decay agents.

Gonçalves, T. D. (2012-05-11)

Salts are major decay agents of porous building materials and their action is particularly relevant in old buildings. This lecture has the following structure: 1 INTRODUCTION 2 SALT DECAY PATHOLOGY 2.1 - Anomalies 2.2 ...
Análise do comportamento de materiais de revestimento utilizados em tratamentos de conservação e restauro de azulejos

Mendes, M.; Ferreira, T.; Morais Pereira, S.; Mirão, J.; Mimoso, J.; Candeias, A. (Faculdade de Ciências da Universidade de Lisboa, 2012-06-04)

Com o objectivo de elaborar um estudo sobre as intervenções de conservação e restauro de azulejo, realizadas no passado em Portugal, foi efectuada uma pesquisa através do Sistema de Informação do Património Arquitectónico ...
The blue in Portuguese historical azulejos

Fares, M. (2012-04)

Although Portuguese azulejos are such an important heritage asset, having been extensively studied from the Art Historian viewpoint, the knowledge concerning the raw materials used and the details of the technological ...
THE PRODOMEA PHASING AND COMPATIBILITY INDICATORS AS TOOLS FOR THE PLANNING AND DESIGN OF CONSERVATION INTERVENTIONS. ASSESSMENT AND VALIDATION IN THE SANTA CLARA-A-VELHA MONASTERY (COIMBRA, PORTUGAL)

Revez, M. J.; Raposo, M.; Delgado Rodrigues, J. (2012-10-22)

The PRODOMEA 8-phase model is a DSS that aims at tackling with the diversity of conditions, materials, methods and disciplines involved in monument conservation interventions by accompanying planners through conceiving, ...
Argamassa de hidroxicloreto de zinco como material para a colmatação de lacunas em azulejos – ensaios de compatibilidade e eficácia

Oliveira , T.; Morais Pereira, S.; Tennent, N.; Calcutt , L. (Universidade Católica Portuguesa- Escola das Artes, PortoOv, 2012-09-29)

Neste trabalho foi testada uma argamassa à base de hidroxicloreto de zinco para colmatação de lacunas em azulejos históricos portugueses. O estudo incluiu ensaios de compressão, flexão e tensão de corte em amostras de ...
Degradação dos azulejos históricos portugueses em aplicações exteriores

Mimoso, J.; Morais Pereira, S.; Esteves, L.; Santos Silva, A. (Universidade Federal do Pará, 2012-11-26)

Neste trabalho examinamos três formas de degradação em ambiente exterior: o craquelê; a queda do vidrado; e a quebra espontânea dos azulejos. Não serão consideradas as degradações directamente resultantes de defeitos de ...
Multi-analytical identification of pigments and pigment mixtures used in 17th century Portuguese azulejos

Coentro, S.; Mimoso, J.; Lima, A.; Santos Silva, A.; Pais, A.; Muralha, S. (Elsevier, 2012-01)

A multi-analytical approach was used to study the pictorial layers of a set of 17th century historic glazed tiles (azulejos) of Portuguese manufacture. The pictorial layer was studied by μ-EDXRF, μ-Raman, SEM-EDS and OM. ...
Azulejo blues – an analytical study of the blue colours in portuguese azulejos

Fares, M.; Mimoso, J.; Pais, A.; Martins, I. M.; Morais Pereira, S.; Muralha, S. (Universidade de Aveiro, 2012-10-10)

This communication reviews the main variants of the blue colour found on glazed tiles (mainly of Portuguese manufacture) used in Portugal from the 16th to the late 18th centuries and discusses the composition of the pigments ...
As primeiras fachadas azulejadas de Lisboa

Pais, A.; Mimoso, J.; Campelo, J. (Universidade de Aveiro, 2012-10-10)

Para uma revolução tão importante em termos de conceito de aplicação como foi a colocação de azulejos nas fachadas de edifícios no século XIX, deste modo alterando decisivamente a percepção do espaço citadino no que diz ...
O restauro do património azulejar

Morais Pereira, S.; Esteves, L.; Mendes, M.; Delgado Rodrigues, J.; Mimoso, J. (Laboratório Nacional de Engenharia Civil (LNEC), 2012-06-18)

Pretende-se dar uma visão geral sobre as principais técnicas e materiais utilizados para o restauro do património azulejar em Portugal fazendo o ponto de ligação da prática com a investigação científica que existe nesta ...
CerAzul: Assessment and development of materials and techniques for the conservation of Historic Azulejos

Morais Pereira, S.; Esteves, L.; Mendes, M.; Musacchi, J.; Delgado Rodrigues, J.; Mimoso, J. (Universidade de Aveiro, 2012-10-10)

CerAzul aims to study, evaluate and optimize the treatments used in the conservation and restoration of architectural tiles (azulejos). The interventions that will be considered in more detail are the consolidation of the ...
Salt degradation of historic portuguese azulejos

Morais Pereira, S.; Mimoso, J. (Universidade de Aveiro, 2012-10-10)

Research was carried out to study the degradation of the glaze layer of a set of Portuguese tiles from the 17th and 18th centuries. The ageing action of NaCl salt has been tested on a group of tiles that presented different ...
A matter of strength – measuring the glaze-biscuit adherence in portuguese tiles

Mimoso, J.; Morais Pereira, S.; Esteves, L. (Universidade de Aveiro, 2012-10-10)

We point the capital importance of the local adherence between the glaze and the biscuit in Portuguese tiles (azulejos), present a system developed at LNEC to measure it in the laboratory, discuss some of its possible uses ...

Now showing items 201-220 of 323

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