Maria Do Rosário Veiga

Maria Do Rosário Veiga
National Laboratory for Civil Engineering | LNEC · Department of Buildings

Ph.D

About

366
Publications
107,696
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
4,428
Citations
Citations since 2016
160 Research Items
3416 Citations
20162017201820192020202120220200400600
20162017201820192020202120220200400600
20162017201820192020202120220200400600
20162017201820192020202120220200400600
Additional affiliations
July 1987 - present
National Laboratory for Civil Engineering
Position
  • Senior Researcher, Head of Building Finishes and Thermal Insulation Division
Education
January 1994 - December 1997
University of Porto
Field of study
  • Civil Engineering

Publications

Publications (366)
Article
Full-text available
To reach European climate neutrality by 2050, the strategic importance of retrofitting the existing building stock is clear. For this scope, thermal rendering systems have emerged as a very feasible solution for historic and traditionally constructed walls. Nonetheless, a definitive guideline for the selection of suitable solutions for the applicat...
Conference Paper
Full-text available
To reach the European climate-neutrality by 2050, the strategic importance of a large energy-efficient renovation of the existing building stock is clear. Among the several retrofit solutions that can be adopted to reduce the impact of existing buildings, the addition of thermal insulation to external walls is often considered. From the building ph...
Article
Full-text available
External Thermal Insulation Composite Systems (ETICS) are multilayer solutions which provide an enhanced thermal performance to the building envelope. However, significant anomalies can be detected on ETICS facades, in some cases shortly after the application of these systems. This study intends to evaluate and compare the durability of six commerc...
Article
Full-text available
The use of concrete materials in Portugal, namely reinforced concrete, began in the 19th century. However, during the 20th century, the increase in the application of this composite material, alongside the use of hydraulic binders, led to a disruption of traditional construction techniques and enhanced generalized application in concrete structures...
Article
Full-text available
Old masonry buildings, which are frequently part of the cities-built heritage, are vulnerable to seismic actions. Thus, it is important to conduct efficient seismic strengthening interventions that allow maintenance of the existing building to minimize the environmental and economic impact. The use of reinforced renders is a simple and effective so...
Article
Full-text available
Renders should have an adequate resistance to impacts, since they must protect the substrate. The use of fibres may enhance the energy absorbed when the mortars are submitted to an impact load, which contributes to postpone the first crack, and control its propagation and width. In this study, the impact strength was measured by a falling mass from...
Article
External thermal insulation composite systems (ETICS) have been extensively applied on building façades with the aim of implementing the thermal and aesthetical properties of the building envelope. However, the formation of stains and deposition of particulate matter is often observed in the surface of these systems. The use of multifunctional prod...
Article
Full-text available
The construction sector is responsible for a great environmental impact. The cement industry, which is included in this sector, emits about 650 to 800 kg of CO2 per each tonne of cement produced, being one of the most polluting industries in terms of greenhouse gas emissions. The cement manufacturing process releases about 7% of the total worldwide...
Article
Full-text available
In recent decades, interest in the eco-efficiency of building materials has led to numerous research projects focused on the replacement of raw materials with mineral and biomass wastes, and on the production of mortars with low-energy-consuming binders, such as gypsum. In this context, five different fractions (bark, wood, branchlets, leaves, and...
Conference Paper
Full-text available
A indústria da construção é responsável por um terço do total de resíduos produzidos na EU. Atualmente, encontrar soluções para a reutilização ou reciclagem destes resíduos é uma das maiores preocupações ambientais do sector. A substituição de areia natural em materiais de construção, tais como betões ou argamassas, por resíduos de construção e dem...
Article
Full-text available
In Southern European countries, due to the specific climate, economy and culture, a permanent heating practice during winter is not widely adopted. This may have a significant effect on the performance of indoor coating materials, typically tested considering hygrothermal conditions in the range of 33–75% relative humidity (RH) and 20–25 °C, which...
Article
Full-text available
O azulejo e a pedra, entre outros materiais de construção históricos que densificam os lugares, modelando a luz, a cor e a temperatura; projeto como criação da construção, sendo os elementos escritos relatores do seu fio condutor; a evolução do edificado com o gosto e a técnica, ligada aos recursos locais e a apropriação social que é feita do patri...
Article
Multilayer external wall thermal insulation systems are widely used in new constructions and for the retrofitting of building façades. Despite the increasing use as constructive solution, significant anomalies have been frequently identified on these systems only few years after their application, raising questions on their long-term durability. Th...
Article
Full-text available
Among thermal insulation solutions for historic walls, thermal renders and plasters appear to be a very feasible option. Thus, this work analyses commercially available thermal mortars suitable for the scope. An extensive experimental campaign showed that testing single materials only, which is the standard requirement for thermal mortar-based syst...
Article
Full-text available
Construction and demolition wastes (CDW) are generated at a large scale and have a diversified potential in the construction sector. The replacement of natural aggregates (NA) with CDW recycled aggregates (RA) in construction materials, such as mortars, has several environmental benefits, such as the reduction in the natural resources used in these...
Article
Full-text available
Salt crystallization is one of the main decay processes in historic masonry mortars, and climate change can worsen the salt weathering effects on those materials as result of, e.g., more often rain falls, more intense solar radiation and sea level rise. In this paper, the effectiveness and durability of a substitution “ventilated render” system (a...
Article
External Thermal Insulation Composite Systems (ETICS) have been extensively used for either new constructions or building facades retrofitting in the last decades. These systems can provide improved thermal performance to the building envelope. However, their long-term durability remains a pervasive concern, with some systems presenting relevant an...
Conference Paper
Full-text available
Construction, renovation, rehabilitation, and demolition generate large amounts of waste and can be responsible for a significant environmental impact. A strategy for processing this waste has been to use this material in new constructions, based on studies on using it as a coarse recycled aggregate to manufacture concrete. After crushing, construc...
Conference Paper
Full-text available
Indoor hygrothermal parameters have an important role in the assessment of indoor air quality (IAQ) and comfort. In fact, the perception of air quality is strongly influenced by temperature (T) and relative humidity (RH). In Northern Europe, due to the severe climate conditions during winter, it is common to adopt continuous heating to guarantee su...
Article
Cracking is an anomaly that affects the durability of renders. It is well known that fibres improve the deformability of the mortars and promote the distribution of the stresses within their matrix, consequently reducing the susceptibility of mortars to cracking. The combination of the improvement of durability with the addition of waste fibres is...
Article
An informed choice of plasters can contribute to improving the comfort and health of buildings users. Therefore, knowing the relative humidity dependent properties to consider when analysing the behaviour of different plasters appears as a fundamental for the selection process, as well as their hygroscopic intrinsic characteristics. A review was co...
Article
Global warming is one of the greatest environmental threats worldwide. It is mainly caused by the growing amount of greenhouse gases in the atmosphere, such as argon and carbon dioxide (CO2), among others. Hence, the need to reduce these gases’ emissions, in particular CO2, is imperative. This reduction may be achieved through strategies that allow...
Article
Full-text available
Plasters have covered wide surface areas of buildings since antiquity, with a main purpose of indoor protection of the substrate on which they are applied. When no longer functional, they might require substitution with solutions that can combine compatibility with the substrate with the current need to mitigate building emissions. Indeed, plasters...
Conference Paper
Full-text available
A review of the current state of art for air-lime, gypsum and earth based plasters for rehabilitation and new buildings, in terms of eco-efficiency, is presented. These mortars belong to Portuguese traditional architecture, responding to compatibility criteria most of the time. This factor, combined with a possible positive response to eco-efficien...
Article
Full-text available
The European Union is pursuing an ambitious policy on climate action, urgently calling for an acceleration in the transition toward net-zero emissions by 2050. In this context, retrofitting historic constructions can play a key role in reducing European energy consumption and consequent emissions. What is more, beyond the opportunity for tackling c...
Article
Full-text available
Conservation, increasing the useful life period of existing significant buildings with minimum consumption of new materials, as much as possible of low-embodied energy, is an important step towards sustainable rehabilitation, while also contributing to the preservation of the cultural heritage. In the context of 20th-century buildings’ conservation...
Article
Full-text available
O presente número trata do volume 1 de um Dossier temático que, inspirado nos materiais de interesse histórico que constroem o património edificado: correlações, usos, paisagens, apresenta artigos que refletem uma ampla, vasta e diversificada abordagem dos vários aspetos que influenciam a realidade patrimonial e investigativa em torno das nossas ci...
Article
Full-text available
Os materiais constituintes dos edifícios, as suas texturas e cores, o modo como refletem a luz, fazem parte da imagem das cidades, ajudam a construir um ADN próprio. A forma como esses materiais são produzidos e aplicados é representativa das técnicas e saberes dos seus habitantes, da sua arte e cultura, moldando a arquitetura e a paisagem urbana....
Article
Full-text available
Neste artigo são abordados materiais de construção cuja aplicação remete para diferentes tempos e usos no património edificado, e que são indissociáveis dos gostos e das influências culturais na arquitetura de cada local. Alguns dos materiais apresentados, como a cal e o gesso, têm um historial de longevidade e durabilidade que é um desafio constan...
Article
Full-text available
Os atos de conservar-como expressão da salvaguarda da história, memórias e valores culturais e urbanos-e do reabilitar-enquanto dispositivo de transformação e adequação às novas necessidades, usos, funções e exigências sociais e urbanas, manifestam, em modo crescente, a atualidade das atividades da construção e da intervenção em meio urbano. Os des...
Article
Full-text available
One of the main functions of renders, together with the overall aesthetic appearance of the building, is the protection of the walls against external aggressive actions, such as water, salts solutions, erosion, and mechanical impacts. However, some anomalies of renders may drastically hinder their protection ability. In fact, cracking, high water p...
Article
The real performance of renders is influenced by several in-service factors. To analyze this influence two types of mortars - a traditional mortar (1:4 cement:sand in volume) and an industrial one-coat mortar - were applied on ceramic and concrete substrates, whose surface has been previously treated in three different ways: i) without moisture; ii...
Conference Paper
Full-text available
One of the biggest challenges currently faced by Society is climate change, leading to the need of mitigation of carbon dioxide (CO2) emissions, among other consequences. The construction sector is responsible for a large part of these emissions. In addition, this sector is also responsible for a significant part of all waste globally produced, abo...
Article
Full-text available
External Thermal Insulation Composite Systems (ETICS) are constructive solutions widely used to increase the thermal insulation in new and retrofitted buildings. However, these systems can present several anomalies due to their constant exposure to weathering agents and anthropic factors. Water is generally the major cause of degradation. Thus, the...
Article
The main objective of RILEM TC LHS-277 “Specifications for testing and evaluation of lime-based repair materials for historic Structures” is the revision, adaption and, when necessary proposal, of the test methods to accurately study lime-based binding systems and mixtures, such as mortars and grouts. The empiric use of the lime-based composites an...
Article
Full-text available
Following the trend of energy-efficient construction, renders with thermal insulation properties have been studied for replacing conventional renders. However, there are still few studies on the durability of these renders that may become a barrier for their implementation. In this study, the performance of lightweight renders for thermal insulatio...
Article
In this paper, the process of design and evaluation of compatible materials to partially or completely substitute damaged interior walls and ceilings coatings made of gypsum-based plasters is presented and the results obtained are discussed. The methodology used comprised the definition of quantitative requirements to be accomplished by the new mat...
Article
Full-text available
: Rehabilitation of facades may be carried out with the application of External Thermal Insulation Systems (ETICS). Their main contribution is the increase of the energy efficiency of buildings. In the literature, hygrothermal, impact and fire performance studies have been carried out on several systems with different insulation materials, such as...
Article
The use of External Thermal Insulation Composite Systems (ETICS) significantly increased in the last decades due to their enhanced thermal properties, low installation cost and ease of application, not only in new constructions but also for thermal retrofitting of building facades. These multilayer rendering systems are constantly exposed to weathe...
Article
Full-text available
Coir fiber is a by-product waste generated in large scale. Considering that most of these wastes do not have a proper disposal, several applications to coir fibers in engineering have been investigated in order to provide a suitable use, since coir fibers have interesting properties, namely high tensile strength, high elongation at break, low modul...
Article
Full-text available
The construction sector is responsible for one third of the total wastes produced in the EU. Finding solutions for the reuse or recycling of these wastes is one of the major environmental concerns of modern times. The replacement of sand or cement in specific construction materials, such as concrete or mortars, is a possible solution for these wast...
Thesis
Full-text available
Historical heritage represents a not renewable nor replaceable resource that we have the duty to preserve and deliver to future generations. It is therefore fundamental to keep it in use and to carefully analyse the possible risks involved in rehabilitation interventions. In this context, energy-efficient interventions can pass through the addition...
Conference Paper
Full-text available
Já em 1972, a Carta italiana del Restauro definia o restauro como «qualsiasi intervento volto a mantenere in efficienza, a facilitare la lettura e a trasmettere integralmente al futuro», designando como objeto de conservação qualquer testemunho das civilizações do passado. Nessa perspectiva toda a construção tradicional pode considerar-se um reposi...
Book
Full-text available
Conservar e Reabilitar monumentos, edifícios e espaços são oportunidades únicas para fomentar a sustentabilidade dos territórios, constituindo-se o ENCORE 2020 - 4º Encontro de Conservação e Reabilitação de Edifícios numa ocasião ímpar para discutir os desafios da transformação no espaço construído: otimizar recursos, reutilizar materiais, melhorar...
Article
In the field of conservation and restoration, incompatibility between historic materials and restoration materials should be avoided, and, therefore, a lot of studies are aimed at assessing compatibility in restoration projects. Thus, this work aims to evaluate the mineralogical, physical, and mechanical compatibility between historic mortars and l...
Conference Paper
A fissuração é uma das anomalias com maior impacte na durabilidade de argamassas de reboco e na redução da sua capacidade de protecção das paredes. Estes aspectos são particularmente importantes na reabilitação de edifícios, em que se pretende prolongar a vida útil da construção, quer por razões de preservação do edificado, quer para promover a sus...
Conference Paper
Full-text available
Our Historic heritage represents a not renewable nor replaceable resource that we have the duty to preserve and deliver to future generations. It is therefore fundamental to keep it in use and to carefully analyze the possible risks involved in retrofitting interventions. When a thermal retrofit is considered, many factors should be accounted for...
Conference Paper
External Thermal Insulation Composite Systems (ETICS) are nowadays often used in new constructions but are also one of the most frequently used thermal retrofitting solutions for buildings. These systems have several advantages such as low installation cost, ease of application and increased thermal efficiency. Nevertheless, a number of questions h...
Article
In order to contribute to the knowledge about the influence of several factors on the in-service performance of renders, as well as about the applicability of in-situ testing techniques in the evaluation of their performance, an experimental work was carried. In this work, the influence of some factors (type of substrate, number and thickness of mo...
Poster
Full-text available
CALL FOR PAPERS The call is now open for the proposal of new papers for the forthcoming number of the academic journal CADERNOS DO ARQUIVO MUNICIPAL. The aim of this journal is to disseminate and publicise the documentation housed at the Lisbon Municipal Archive. Number 16 Thematic Dossier: The materials of historical interest that build up the u...
Article
A fissuração é uma anomalia que afecta uma grande parte dos revestimentos exteriores. Esta anomalia não só se reflecte no aspecto estético das construções como também pode dar origem a outras anomalias. Por exemplo, o incremento das infiltrações de água causadas pela fissuração pode potenciar o desenvolvimento de microrganismos ou plantas. A incorp...
Article
Exterior old glazed tiled facades have been a very important heritage testimony of Portuguese culture and traditions throughout the years. The adhesion of the mortars to the old tiles is a very important factor in the behavior of the tiled facades. This study performs a mechanical and water behavioral characterization of compatible air lime (AL) mo...
Article
The presence of stucco marble in the Portuguese architecture is not surveyed and studies addressing the materials used to produce it are almost inexistent. In this paper, the results of the multi-analytical characterisation using XRD, SEM-EDS, Py-GC/MS and the determination of capillary water absorption and dynamic modulus of elasticity of 15 sampl...
Article
Full-text available
The incorporation of wastes in new materials and products is an emerging trend, reducing virgin materials’ consumption and landfill deposition and the associated environmental impacts. Cement-based mortars can encapsulate some wastes, with the benefits stated above. In three previous researches, it was found that forest biomass bottom ashes (up to...