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Portuguese forests are mainly composed of hardwoods, which represent 69% of the forest area in 2010, being Blue gum (Eucalyptus globulus Labill.) the most abundant species (26%). The suitability of Blue gum for structural applications was demonstrated in previous studies. However, the most common uses are still related to the pulp and paper industry as well as energy production, mainly due to sawing and drying issues. The present paper describes a preliminary study on the potential application of non-destructive tests and analytical methods to predict the most important mechanical properties of glued laminated timber (glulam) beams made of Blue gum. The potential of mixed beams made of Blue gum and poplar was also analysed. The longitudinal vibration method and the transformed section method were considered. A total of 11 non-finger jointed full-scale glulam beams (7 of Blue gum and 4 mixed) were manufactured in the laboratory and tested for modulus of elasticity and bending strength assessment. After the bending tests, the density and moisture content of the beams were determined, and the bonding performance was checked by delamination and shear strength tests. Correlation coefficients were established between the predicted values and the experimentally assessed mechanical properties, indicating a huge potential of the predictive methods used. The mechanical properties of non-finger jointed beams tested were above the typical values found in the literature for the most common hardwoods available in European forest.

Reducing the cement content of concrete is of paramount importance towards sustainability, since its production process is highly energy-consuming and delivers massive CO2 emissions to the atmosphere. In this paper, the bond behaviour between steel and stainless-steel reinforcing bars and Low Binder Concrete (LBC), produced with approximately one half and almost one fourth of the minimum cement content prescribed in the standards, is experimentally investigated. Results show the compactness of the mixture to be the main parameter controlling bond development, more than the mixture compressive strength as suggested in published results and standards. A more compact and denser mixture increases the contact surface between the reinforcing bars and concrete, improving friction between both. LBC mixtures with lowered cement content, up to almost one fourth of the minimum recommended, can be used without jeopardizing the bond strength of reinforcing bars. LBC mixturespromise to be a fitting approach towards greater sustainability in the concrete production sector.

Reducing the cement content of concrete is of paramount importance towards sustainability, since its production process is highly energy-consuming and delivers massive CO2 emissions to the atmosphere. In this paper, the bond behaviour between steel and stainless-steel reinforcing bars and Low Binder Concrete (LBC), produced with approximately one half and almost one fourth of the minimum cement content prescribed in the standards, is experimentally investigated. Results show the compactness of the mixture to be the main parameter controlling bond development, more than the mixture compressive strength as suggested in published results and standards. A more compact and denser mixture increases the contact surface between the reinforcing bars and concrete, improving friction between both. LBC mixtures with lowered cement content, up to almost one fourth of the minimum recommended, can be used without jeopardizing the bond strength of reinforcing bars. LBC mixtures promise to be a fitting approach towards greater sustainability in the concrete production sector.

Among biological agents, insect attacks may cause severe degradation of timber structuresin the service life of buildings which leads to lower mechanical performance and, thus, maintenanceproblems over time. Additionally, compression perpendicular to the grain always features a weak spotwith respect to the long-term mechanical performance of timber members and joints. In the presentwork, the respective strength and elastic modulus were thus investigated for insect deterioratedwood. Following a standardized geometry, small samples degraded by anobiids were extractedfrom beams made of sweet chestnut wood (Castanea sativa Mill.) that were removed from service.Visual assessment of the external wood surfaces was then performed to identify areas infested byinsects. Afterwards, destructive monotonic compression tests were carried out perpendicularly tothe grain on the damaged area to determine the loss of compressive strength and elastic modulus.The experimental results showed that the loss of compressive strength and elastic modulus mightbe linearly correlated to the wood density loss for small samples infested by insects. Nonetheless,future work should focus on determining accurately the density loss in the insect-deteriorated partthrough non- or semi-destructive tests, in order to establish stronger relationships with the mechanicalproperties loss investigated.

In the present work, and for the first time, totally biosourced low-density particleboardswere produced using cardoon particles (a no added value by-product from the Portuguese cheese making industry), bound with a potato starch adhesive. Different starch/cardoon ratios (0.6, 0.8, 1 and 1.2) were tested and the effect of different bio-based additives (chitosan, wood fiber and glycerol) on the performance of the adhesive system was evaluated. The best result was obtained for a formulationwith a starch/cardoon mass ratio of 0.8, a chitosan/starch mass ratio of 0.05 and a water/starch mass ratio of 1.75. The particleboards produced had a density of 323 kg-m-3, internal bond strength of 0.35 N.mm-2 and thickness swelling of 15.2%. The values of density and internal bond strength meet the standard requirements of general-purpose lightweight boards for use in dry conditions according to CEN/TS 16368 specification. Moreover, the susceptibility of the formulations with best results was established against subterranean termites and one decay fungi.

There is a need for new solutions in wood protection against marine wood borers andtermites in Europe. A new solution could be the esterification of wood with sorbitol and citric acid(SCA) since these are inexpensive and readily available feedstock chemicals and have shownprotective properties against fungal wood degradation in earlier studies and preventedmacrobiological degradation, as shown in this study. Protection of wood products in the marineenvironment lacks available wood preservatives that are approved for marine applications. Termiteinfestation is opposed mainly by biocide treatments of wood. Several wood modification systemsshow high resistance against both marine borers and subterranean termites. However, the existingcommercialized wood modification products are costly. Both macrobiological forms of degradationrepresent a great threat for most European wood species, which are rapidly and severely degradedif not properly treated. This study investigated esterified wood in standard field trials againstmarine wood borers, and against subterranean termites in laboratory trials in a no-choice and choicetest. The treatment showed good resistance against wood borers in the marine environment afterone season and against subterranean termites in the laboratory after eight weeks. The low termitesurvival rate (SR) in the no-choice test during the first week of testing indicates a mode of actionthat is incomparable to other wood modification treatments.

Due to its average mechanical properties, poplar, a fast-growing species, has been disfavored compared to stronger species for several decades. Wood-based products may help changing that perspective and thus, poplar has been gaining its marketshare for structural uses. A state-of-the-art review concerning the use of poplar to produce glued laminated products, with special focus on the use of Portuguese poplar, is presented. The Portuguese forest produces a great variety of species. Themost common poplar species found in this country are Populus x canadensis, P. nigra L., and P. alba L. Despite its limited availability, and the market hesitation on its structural application, recent studies on poplar grown in the Portuguese forestshowed its suitability for structural purposes. Glued laminated timber (GLT) beams made with this species revealed a very promising mechanical behavior. Bending strength tests evidenced a ductile behavior on more than 70% of the beams, whichmotivated deepening the study on the raw material used to produce those beams. To predict the mechanical behavior of such beams, a 3D numerical model was developed. The numerically predicted results were compared with the experimental ones,showing very good agreement between both approaches.

O betão com baixa dosagem de ligante (LBC - low binder concrete na denominação anglo-saxónica) e o betão com baixa dosagem de cimento com agregados reciclados (LCRAC - low cement recycled aggregate concrete ) são alterativas eco-eficientes ao betão de cimento Portland com agregados naturais por apresentarem um menor impacto ambiental. Para contribuir para o estudo da viabilidade de aplicação estrutural do LBC e do LCRAC, apresentam-se neste artigo os resultados obtidos numa campanha experimental de ensaios de arrancamento (pull-out tests), realçando o desempenho obtido ao nível da relação entre a tensão de aderência e o deslizamento do varão de aço. Os resultados experimentais foram comparados com as propostas de previsão existentes e apresenta-se uma primeira proposta de lei para descrever a relação tensão de aderência-deslizamento, considerando a compacidade, os agregados reciclados, o diâmetro do varão e a respetiva área relativa das nervuras transversais. A influência positiva da compacidade na aderência foi validada através da comparação dos resultados obtidos com os resultados decorrentes da proposta existente no Model Code 2010.

In this article, an assessment method toestimate the residual strength of pine structural ele-ments degraded by anobiids is presented. This novelmethod was developed in the laboratory to be usedin situ and is based on the strength required to withdrawa screw on the surface of degraded timber. Samples ofdegraded maritime pine (Pinus pinaster Ait.) weresubmitted to micro-computed tomography (l-XCT) toquantify density loss. This parameter is highly corre-lated with mechanical properties thus central for theassessment of timber structural capacity. Density lossvalues have been correlated with both screw withdrawalforce and shear parallel to the grain strength showingsignificant relationships between these parameters.Using these correlations, the density loss of a degradedelement and its shear strength parallel to the grain viathe screw withdrawal force can be estimated enabling avalid quantitative assessment of the timber elementsresidual strength and, therefore, contributing to reduceunnecessary replacement, to boost eco-efficient inter-ventions and to provide foundations required to performexperimental modelling tests.

O risco refere-se à probabilidade de ocorrerem danos causados pela manifestação de um determinado perigo, sendo função da perigosidade, da exposição (de pessoas e bens) e da vulnerabilidade dos elementos expostos face a esse perigo.Um componente essencial da avaliação do risco è a análise da perigosidade associada aos perigos identificados num dado território, sejam de origem natural ou decorrentes da ação humana. Outro componente essencial é a análise dos elementos (pessoas e bens) expostos aos perigos, bem como as características que contribuem para a suavulnerabilidade - ou a sua resiliência em situação de acidente grave ou de catástrofe. Nesta comunicação dá-se conta de alguns estudos desenvolvidos pelo LNEC nos domínios da avaliação da perigosidade e da vulnerabilidade sísmica das construções, da perigosidade de agitação costeira e risco de galgamentos costeiros e da avaliação da vulnerabilidade de edifícios aos incêndios florestais.

O presente trabalho apresenta uma comparação entre resultados de ensaios realizadossobre varões de aço produzidos em troços retos e realizados sobre varões de açoproduzidos em rolo e posteriormente endireitados, colocando em evidência as principaisconsequências do processo de endireitamento sobre a alteração das característicasmecânicas dos varões de aço laminados a quente, e sobre a geometria das suas nervuras,que asseguram a sua aderência ao betão.São também apresentadas algumas considerações sobre medidas possíveis para precavera utilização de varões que deixem de cumprir as exigências regulamentares devido àsconsequências do seu endireitamento.

The main aim of this Life Cycle Assessment (LCA) study was to assess and comparethe environmental impacts of thermally treated and untreated maritime pine boards to be used as cladding. All processes were considered from forest management and resource extraction until cladding construction and its use during the next 15 years. At the end of the claddings life cycle it has been considered that the pine boards will be used as wood fuel to substitute firewood in the local heating system. The ReCiPe-V1.08 was the method selected for Life Cycle Impact Assessment of the products. The foreground data came from a Portuguese company that uses the ThermoWood method to thermally treat the pine boards and the background data came from the databases embedded in the SimaPro software. LCA results from the study have shown that the ´Ecosystems´ is the most important damage category mainly due to ´Agricultural land occupation´ by thewood in the forest. The cladding made by pine boards thermally treated can beconsidered more environmental friendly than the cladding made by untreated pineboards unless a very high weight (very close to 100 %) is given to impacts on ´Humanhealth´ and ´Resources´ while a very low weight (very close to 0 %) is given to impacts on ´Ecosystems´. The study has also demonstrated an increase of potentialenvironmental advantages of the thermally treated pine boards if wood energy is used inthe heat treatment process instead Liquefied Petroleum Gas.

O comportamento de ligações do tipo madeira-madeira com placas de madeira densificadae ligadores do tipo cavilha de FRP foi analisado experimentalmente e foi desenvolvido um modelo de cálculo com base nas expressões da EN 1995-1-1. Foram realizados ensaios de esmagamento localizado em placas de madeira densificada e ensaios de caracterização dos ligadores de FRP, bem como ensaios de ligações estruturais fabricadas com estes materiais. Os resultados mostram que as ligações têm um comportamento adequado à sua utilizaçãoestrutural, em termos de capacidade de carga e ductilidade, e o modelo de cálculo propostoapresenta resultados coerentes com os resultados experimentais.

Neste trabalho apresentam-se os resultados obtidos de um estudo paramétrico realizado com o intuito de quantificar a influência relativa da localização e características geométricas da estrutura em monopolos auto-suportados utilizados para telecomunicações, e aquando da definição da ação do vento. Pretendeu-se ainda conhecer a importância global destes parâmetros aquando da análise e dimensionamento deste tipo de estruturas.

Neste trabalho são apresentados e discutidos os resultados obtidos num estudo paramétrico realizado com o intuito de quantificar a influência relativa dos equipamentos utilizados em monopolos auto-suportados para telecomunicações, aquando da definição da ação do vento sobre estas estruturas. Pretende-se dar a conhecer a importância global do conjunto dos equipamentos utilizados neste tipo de estruturas, abordando-se ainda algumas matérias particulares como, por exemplo, o efeito de interferência entre antenas e interfaces, o efeito de escudo entre escadas e fuste, e o efeito de bloco dos caminhos de cabos.

Bridge falsework systems are one of the most common temporary structures used in the construction industry, namely to support the formwork during the construction, rehabilitation or retrofit works of concrete bridges and viaducts. In this paper the results of numerical studies of a selected structural system are presented using a novel joint finite element and information gathered from the experimental tests. The accuracy and precision of these numerical models improves the existing bridge falsework systems behaviour and resistance numerical benchmarks. A key contribution of this paper is to present the results of different numerical modelling options, from which the effect of various modelling simplifications are analysed and discussed.

This paper presents the principles of a method for the architectural design of timber houses based on the experience gained by timber companies. This proposal has as its major goal the challenging of the scenario of countries like Portugal where a shift in the design and construction methods integrating wood as a material could result in a much more sustainable habitat. A set of interviews was carried out with Portuguese companies in the sector of timber houses. They were questioned about their customers, design methods, the architect

Apresenta-se o trabalho realizado com o objectivo de avaliar a viabilidade da utilização de parafusos auto perfurantes e placas de contraplacado na reparação de vigas retas delaminadas, previamente levadas à rotura por flexão. O programa de ensaios envolveu o fabrico de 21 vigas com 3,090m x 0,175m x 0,095m, apresentando diversos tipos de delaminação. As vigas foram ensaiadas em flexão até à rotura, sendo posteriormente reparadas com recurso a parafusos auto perfurantes e placas de contraplacado, e ensaiadas de novo à flexão.Os resultados obtidos indicaram que a reparação efetuada foi tanto mais eficaz quanto menos danificada tivesse ficado a viga após o primeiro ensaio, e que a utilização de parafusos auto perfurantes aumentou a ductilidade das vigas.

Bridge falsework systems are one of the most common temporary structures used in the construction industry, namely to support the formwork during the construction, rehabilitation or retrofit works of concrete bridges and viaducts. A key contribution of this paper is to propose a novel risk management methodology based on newly developed robustness and fragility indices. Advanced stochastic investigations are carried out, in which the key variables that control the stochastic behaviour of bridge falsework systems are identified.Possible strategies to increase robustness and decrease fragility are discussed. The information gathered in this paper can be used to develop more rational and reliable bridge falsework structures thus safer and more design efficient.

Timber, as a construction material, has played an important role in the history of architecture and construction since is very beginning. Naturally, the concerns about its durability and resistance are equally old and have been registered throughout history on building treaties and writings that can date as far as the Old Testament. Being a natural material, bio-deterioration is one of wood

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O Museu da Academia das Ciências de Lisboa possui uma preciosa xiloteca assinada pelo Mestre dos marceneiros portugueses, José Aniceto Rapozo contendo 1213 amostras de madeiras do Brasil e 12 de outras origens. A sua importância no progresso do conhecimento dos recursos florestais do Brasil naviragem dos séculos dezoito e dezanove conduziu ao estudo em curso. Dada a devastação verificada em vastas áreas florestais brasileiras, surgem dificuldades por certas espécies poderem ter distribuiçãogeográfica diferente (com eventual extinção, geral ou localizada), por insuficiência do material de comparação, e por ambiguidade das designações comerciais.Foi possível identificar esta xiloteca como uma de quatro encomendadas a Aniceto Rapozo pelo Príncipe Regente. A análise das amostras de madeira e a informação documental mostram que a colecçãotem por base uma remessa de 5008 amostras de madeiras do Brasil enviada em 1784 para o Arsenal Real do Exército, em Lisboa, pelo Vice-Rei do Brasil, Luís de Vasconcellos e Souza.O valor científico do conjunto é evidenciado pela identificação botânica das espéciesrepresentadas. Na situação actual, a identificação das espécies florestais representadas na amostragem foiinteiramente conseguida em 14% dos casos, conseguida mas ainda por confirmar em 27%. Dado o carácter preliminar deste estudo, os seus resultados serão ulteriormente publicados com mais pormenor. Among the Lisbon Academy of Sciences Museum collection there is a valuable xylarium by theleading Portuguese master cabinet-maker José Aniceto Rapozo (1756-1824), comprising 1213 wood samples from Brazil plus 12 from elsewhere. This collection is most important since it allows us to improve the knowledge on Brazilian forest resources by the end of the eighteenth century and thebeginning of the next. This study aims to establish its historical framework and scientific value. Owing tooverexploitation and even devastation of very large forest areas in Brazil, difficulties for our study aroseeither as some species may have now a different geographical distribution (and eventually may have underwent local or general extinction), by lack of adequate comparison material, or because of ambiguityof the commercial names.Results so far obtained allowed us to recognize the xylarium as one of the four commanded Rapozo by the Regent Prince, later King João VI (1767-1826). Taking into account the wood samples analyses as well as bibliographic data it is possible to conclude that the collection was prepared from a set 3 of 5008 Brazilian wood samples sent to the Royal Arsenal in Lisbon in 1784 by the Brazil

This work collects information about laboratory tests to evaluate the properties of agro-industrial wastes used for thermal insulation building materials considering them individually and in composits. It focuses on bio-susceptibility, as one of the main aspects to consider for bio-based building products.

Innovation in structures and construction materials demands a more accurate performance analysis during the life cycle. In addition, climatic changes pose new challenges to civil infrastructures that were not so relevant in the past. In most cases, the traditional test methods cannot accurately assess the complex phenomena involved in durability. The modern and complex factors require a different approach to durability analysis. The purpose of this chapter is to present innovative durability tests on construction materials: wood; rammed earth, cob and unfired blocks; natural stone; bituminous binders and mixtures; and Fibre Reinforced Polymers (FRP) to concrete bonded connections. Most of these tests concern the accelerated simulation of the main phenomena involved in durability performance

Laboratory tests were carried out to define production parameters of innovative eco-efficient composites made up of hazelnut shells as aggregate and a sodium silicate solution as adhesive. The aim was to maximize the content of bio-aggregates and minimize the amount of adhesive, guaranteeing the feasibility of producing samples. Therefore, after preliminary testing, the percentages of hazelnut shells and the sodium silicate solution were kept constant: 70% and 30% of the total volume, respectively. However, the characteristics of the considered composites did not allow the production of uniform samples. The sodium silicate solution was not rapidly absorbed by the bio-aggregates; during the drying process, it was deposited on the bottom side of the samples. The uniformity of the samples is required to guarantee a correct evaluation of their performance and future homogeneous panels. Hence, different production parameters were investigated, such as drying at T

The durability of construction materials is a key concern and can be related to different actions such as weathering conditions outdoors enhanced by climatic change, chemical and biological attack, abrasion, and other conditions of service over time. Frequently, several actions develop simultaneously, making it difficult to reproduce in situ conditions in laboratory. Furthermore, testing to assess durability depends largely on the nature of the material itself or on the way it has been assembled with other materials. The ageing techniques to assess long-term durability performance of construction materials are based on accelerated durability tests, which include, for example, thermal stress, freeze

This paper presents an overview of research carried out to assess the bonding suitability of Portuguese timbers.Most work developed in the last decades has focused Maritime pine timber, due to its traditional use in building construction, good mechanical properties and availability. Untreated, as well as preservative treated Maritime pine have been studied, as its impregnability allows deep treatment suitable for applications in Use Classes 3 and 4.Recent results on bonding preservative treated Maritime pine wood are discussed.Preliminary results regarding other species that are becoming available in the Portuguese market are also presented, as an attempt to reduce pressure on Maritime pine timber as well as to seek more valuable alternatives for their traditional uses.

No presente trabalho apresentam-se os resultados mais relevantes obtidos num programa experimental desenvolvido no LNEC com o objetivo de caracterizar a aderência dos varões nervurados do tipo A500NR SD existentes no mercado, fundamentalmente para melhorar a modelação do comportamento dos elementos de betão armado de zonas críticas de estruturas inseridas em zonas sísmicas.O programa experimental desenvolvido pretende simular as condições de aderência existentes num varão horizontal de uma ligação viga-pilar e tem como principais variáveis varões de dois diâmetros frequentemente utilizados (16 e 25 mm), dois níveis diferentes de área relativa das nervuras (A e B) e duas classes de betão (C1 e C2), ambos representativos do betão utilizado nas construções mais relevantes.Os resultados obtidos quer nos ensaios monotónicos quer nos ensaios cíclicos apontam para um decréscimo da tensão de aderência com o aumento do diâmetro da ordem dos 10%. O aumento da área relativa das nervuras transversais traduz-se num incremento da tensão máxima de aderência da ordem dos 15%, com uma redução do deslizamento que ronda os 15%. Nesse sentido, este estudo propôs que, no caso dos varões com maior área relativa das nervuras, a tensão de aderência máxima possa variar entre 2,35 e 2,65 vezes a raiz quadrada da resistência do betão à compressão e que o patamar onde a tensão de aderência é máxima se situe entre 0,5 e 1,5 mm de deslizamento.Explorou-se também o fenómeno da entrada em cedência da armadura tendo-se concluído que, em provetes que pretendem simular as condições de aderência existentes num varão horizontal de uma ligação viga-pilar, a entrada em cedência da armadura conduz a uma redução da tensão de aderência máxima inferior a 10%, quer regime monotónico quer em regime cíclico.

O presente trabalho de investigação refere-se à conservação de elementos estruturais de madeira medianamente degradados por fungos em edifícios antigos. Propõe-se estudar a compatibilidade entre produtos de tratamento e de consolidação por impregnação, aplicados sequencialmente. A avaliação do processo foi realizada maioritariamente em laboratório e na óptica do desempenho mecânico conjunto da madeira e produtos aplicados, por intermédio de ensaios físico-mecânicos destrutivos e não destrutivos e também por ensaios mecânicos não destrutivos realizados in situ. Foram utilizados produtos comerciais, aplicando-os às espécies de madeira correntemente encontradas nos edifícios antigos da zona de Lisboa: Pinho bravo e Casquinha. Procedeu-se à avaliação mecânica de madeira nova e antiga, em estado são e degradado; ao desenvolvimento de um método de medição da profundidade de penetração de produtos de tratamento; à avaliação da capacidade consolidante de madeira degradada por produtos poliméricos fluidos e à avaliação da sua actuação conjunta, estudada com e sem envelhecimento artificial. Os resultados obtidos indicaram significativos aumentos de capacidade mecânica da madeira degradada, quando submetida a tratamento e consolidação Este trabalho desenvolve, assim, uma proposta de solução para a madeira que não se encontra sã, mas que ainda possui capacidade resistente, não necessitando, por isso, de ser removida. O processo de tratamento e consolidação promove resistência aos agentes biológicos e, simultaneamente, recuperação de alguma resistência mecânica da madeira, conferindo-lhe capacidade para continuar em serviço.

Subterranean termites from the genus Reticulitermes are an important pest ofwood in service throughout southern Europe and elsewhere. For effective termitecontrol with long term protection but minimal environmental damage, newintegrated approaches to termite management are needed. Baiting-based systemsseem to be promising non-traditional methods for termite control, targeting thecolony as a whole. However, control through baiting is only feasible when it isknown that the toxicant can be transferred to all the colonies foraging on theinfested area and also throughout each individual colony. Accordingly, the workdescribed is specifically designed to achieve a better understanding of thedistribution and delimitation of colonies within a population of Reticulitermes,with parallel insights into foraging behaviour and colony organization.Initially, the species/subspecies spectrum present within the notionalReticulitermes group in Portugal was reassessed. It was shown that Reticulitermesgrassei is the only species encountered. Foraging activity was then assessed in anexperimental woodland site over two successive annual cycles, both by thesampling of natural lying dead wood and by a standard baiting grid. R. grasseiseem to select wood with larger diameter, with an apparent preference for materialalready decayed by fungi. Both termite and fungal attack on wood seems to bepromoted by higher moisture levels, such as prevail in larger litter items andduring seasonal rains. Termites were unable to detect and direct their foragingtowards sound wood in laboratory conditions, suggesting that the network ofinfochemical signals is more complex than just volatiles emanating from soundwood. Mark-release-recapture (MRR) was used to delineate foraging groups,which were then allocated to their parent colonies by the use of microsatellitemarkers. The results suggest that resource sharing is a facultative behaviour,specifically when food is not a limiting factor for colony development. Theimplications of all these findings for bait technology and protocols are discussed,with reference to the local population ecology of Reticulitermes.

The project CircularBuild -

Relatório final do projeto PTDC/ECM/099121/2008

O presente trabalho apresenta um projecto de versão portuguesa da Norma Europeia EN 10002-2, e insere-se numa série de estudos programados pelo autor, enquanto coordenador da normalização nacional no domínio dos ensaios mecânicos, físicos e não-destrutivos de materiais metálicos.O texto do projecto de norma apresentado consiste na versão final de uma proposta redigida pelo autor, na sequência dos estudos efectuados ao nível da Comissão Técnica de Normalização competente.

O presente trabalho apresenta um projecto de versão portuguesa da Norma Europeia EN 10002-5, e insere-se numa série de estudos programados pelo autor, enquanto coordenador da normalização nacional no domínio dos ensaios mecânicos, físicos e não-destrutivos de materiais metálicos.O texto do projecto de revisão apresentado consiste na versão final de uma proposta redigida pelo autor, na sequência dos estudos efectuados ao nível da Comissão Técnica de Normalização competente.

O presente relatório descreve a participação do LNEC no programa europeu de intercomparação de calibrações de forças

O presente trabalho apresenta um projecto de revisão da Norma Portuguesa NP 850 (1985)

O presente trabalho apresenta um projecto de revisão da Norma Portuguesa NP 386 (1965)

O presente trabalho apresenta um projecto de revisão das Normas Portuguesas NP 449 (1966)

O presente trabalho apresenta um projecto de revisão da Norma Portuguesa NP 450 (1966)

O presente trabalho apresenta um projecto de Norma Portuguesa relativo ao ensaio de dilatação de anéis de tubos metálicos, e insere-se numa série de estudos programados pelo autor, enquanto coordenador da normalização nacional no domínio dos ensaios mecânicos, físicos e não-destrutivos de materiais metálicos, com a finalidade de preencher lacunas da Normalização Portuguesa neste domínio que a indústria e as instituições ligadas ao controlo da qualidade considerem ser mais urgente colmatar.O texto apresentado consiste na versão final de uma proposta redigida pelo autor, na sequência dos estudos efectuados ao nível da Comissão Técnica de Normalização competente.

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