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Browsing DM/NMC - Comunicações a congressos e artigos de revista by Issue Date

Browsing DM/NMC - Comunicações a congressos e artigos de revista by Issue Date

Now showing items 1-20 of 290

Durabilidade de vernizes aplicados na protecção de madeira

Custódio, J.; Eusébio, M. I. (2003)

This communication is based on a work done in LNEC, which consisted in the study of the protection performance of varnishes applied in wood surfaces for exterior exposure. The objective of this work was to evaluate the ...
Incorportion of Sludges from aWater Treatment Plant in Cement Mortars

Esteves, A.; Gonçalves, A. (2004)

The results of the characterization of the sludge from a Portuguese water treatment plant and their leachates are presented. Dewatered sludge contains basically water, calcium, aluminium and silica, with an organic matter ...
Durability of varnishes - are subjective assessments enough?

Custódio, J.; Eusébio, M. I.; Ribeiro Nunes, L. M. (2004)

This paper is based on a study of the protection performance of varnishes applied to a wooden substrate for outdoor exposure. The aim of the work was the evaluation of some of the test methods that are often used in the ...
Waterborne acrylic varnishes durability on wood surfaces for exterior exposure

Custódio, J.; Eusébio, M. I. (Elsevier B.V., 2006)

The protection performance of varnishes applied to two different wooden substrates (maritime pine and iroko) for outdoor exposure was investigated for eight different varnish systems (with and without colorants and two ...
Tratamentos de superfície de madeira para melhoramento da adesão

Custódio, J.; Cruz, H.; Broughton, J. (2006)

Um requisito importante de uma junta colada, é a sua capacidade para manter um desempenho satisfatório durante a vida útil da estrutura, mesmo nas situações em que esta é exposta a condições extremas de temperatura e ...
Acção da temperatura no comportamento de colas epoxídicas – usadas em reforço/reparação de estruturas de madeira

Custódio, J.; Cruz, H. (Sociedade Portuguesa de Materiais, 2006)

Nesta comunicação é apresentado o trabalho experimental desenvolvido no LNEC, maioritariamente no âmbito do projecto Europeu LICONS – Low Intrusion Conservation Systems for Timber Structures, ter-minado recentemente, ...
Selection of adhesives and quality control of structural repairs by bonding on site

Rodrigues, D.; Custódio, J.; Cruz, H. (2007)

Bonding on site has been used successfully for many years in the repair and strengthening of timber structures. However, there is still a lack of knowledge about its service durability, especially under high service ...
A review of adhesion promotion techniques for solid timber substrates

Custódio, J.; Broughton, J.; Cruz, H.; Hutchinson, A. (Taylor & Francis Group, LLC, 2008)

The use of primers, coupling agents, and other surface treatments to enhance adhesion is now common in the aerospace, automotive, and plastics industries, where they are used to develop highly durable bonds to metals, ...
Thermal behaviour of epoxy and polyurethane adhesives and bonded timber joints - preliminary results

Custódio, J.; Rodrigues, D.; Bairrão da Rosa, A.; Gomes Ferreira, J.; Cruz, H.; Broughton, J. (2008)

In order to contribute to the ongoing discussion on the reliability of epoxy (EP) and polyurethane (PUR) adhesives for load bearing structures, a study was conducted at LNEC where several structural adhesives were subjected ...
Can Tg be used as a service temperature indicator for the selection of a structural adhesive?

Custódio, J.; Rodrigues, D.; Cruz, H.; Broughton, J. (Engineered Wood Products Association (Ewpa), 2008)

In order to contribute to the ongoing discussion on the reliability of epoxy (EP) and polyurethane (PUR) adhesives for load bearing structures, a study was conducted at LNEC where several structural adhesives were subjected ...
Evaluation of timber adhesion promotion techniques for solid timber substrates

Custódio, J.; Cruz, H.; Broughton, J.; Hutchinson, A.; Winfield, P. (2008)

Long-term durability of a structural adhesive joint is an important requirement, as it has to be able to support the required design loads, under service conditions, for the planed life time of the structure. One way of ...
Preparation method and service conditions effects on the performance and durability of epoxy adhesives used in structural timber repairs

Custódio, J.; Cruz, H.; Broughton, J. (2008)

Rehabilitation/restoration systems involving structural adhesives represent an efficient method for the repair and/or reinforcement of both new and existing timber members. Epoxy adhesives have been used for many years in ...
Repair of heritage timber structures in Lisbon

Custódio, J. (2008)
Mortars and their compatibility for the conservation of masonry walls in Tróia Archaeological Site

Delgado Rodrigues, J.; Esteves, A.; Catarino, J. (2008-09)

Due to a very long exposure since the first excavations, the Tróia archaeological site shows conservation problems of different types and grades. Most of them are directly connected to the geographical location facing the ...
Caracterização Ambiental de Resíduos de Construção e Demolição

Esteves, A.; Martins, I. M. (2008-09)

Em Portugal a indústria de construção gera uma quantidade significativa de resíduos de construção e demolição (RCD), produzindo-se anualmente cerca de quatro mega toneladas. Os RCD que contêm materiais com características ...
Characterisation of mortars from Tróia Archaeological Site

Esteves, A.; Delgado Rodrigues, J.; Catarino, J. (2008-09)

This paper presents results obtained in the European project PRODOMEA (PROject on high compatibility technologies and systems for conservation and DOcumentation of masonry works in archaeological sites in the MEditerranean ...
Activation of timber surfaces by flame and corona treatments to improve adhesion

Custódio, J.; Broughton, J.; Cruz, H.; Winfield, P. (International Journal of Adhesion and Adhesives, 2009)

Long-term durability of a structural adhesive joint is an important requirement, because it has to be able to support the required design loads, under service conditions, for the planed lifetime of the structure. One way ...
Thermal stability of epoxy and polyurethane adhesives and bonded joints used in the rehabilitation of timber structures

Custódio, J.; Cruz, H.; Negrão, J.; Broughton, J. (Universidad del Bío-Bío, 2009)

In order to contribute to the ongoing discussion on the reliability of epoxy (EP) and polyurethane (PUR) adhesives for load bearing structures, a study was conducted at LNEC where several structural adhesives were subjected ...
Compatibility of rendering systems with salt loaded ordinary masonry walls

Gonçalves, T. D.; Delgado Rodrigues, J. (RILEM, 2009)

Salt damage results mainly from the crystallization of soluble salts inside the pores of construction materials. It may cause numerous problems to the built heritage, namely, the degradation of the habitability conditions, ...
A review of factors influencing the durability of structural bonded timber joints

Custódio, J. (International Journal of Adhesion and Adhesives, 2009)

Adhesive bonding technology has played an essential role in the development and growth of the rehabilitation and repair of timber structures. The ability of a structural joint to maintain satisfactory long-term performance, ...

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