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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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Calidad del encolado de los productos de madera estructural desarrollados con especies mediterráneas

Authors: Vilches Casals, Marcel;

Calidad del encolado de los productos de madera estructural desarrollados con especies mediterráneas

Abstract

El uso de maderas mediterráneas es limitado debido a sus características singulares, que restringen su aplicación en productos que exigen alta homogeneidad. No obstante, un procesamiento adecuado podría potenciar su uso. En este contexto, la madera contralaminada (CLT) abre nuevas oportunidades para valorizar estas especies y mitigar sus limitaciones. Esta tesis explora la calidad del encolado de maderas como el pino carrasco, pino laricio, pino silvestre y castaño, con el fin de optimizar sus aplicaciones. La investigación se divide en tres fases. Primero, se analiza la calidad del encolado de estas especies según la normativa vigente. La segunda fase evalúa cómo el tiempo entre el cepillado y el encolado afecta a la calidad de la unión. La tercera fase valora la adecuación de los ensayos normativos y propone probetas alternativas para una evaluación más precisa. Se fabricaron 75 muestras de CLT con adhesivo de melamina y poliuretano. Los resultados demuestran la idoneidad de estas maderas para el CLT, destacando la eficacia de la melamina y la disminución de la calidad de la unión si se superan las dos semanas entre el cepillado y el encolado. Las probetas alternativas propuestas se validan como una opción fiable para evaluar la resistencia de la unión.

L'ús de fustes mediterrànies és limitat a causa de les característiques singulars que restringeixen la seva aplicació en productes que exigeixen alta homogeneïtat. No obstant això, un processament adequat podria potenciar-ne l'ús. En aquest context, la fusta contralaminada (CLT) obre noves oportunitats per valoritzar aquestes espècies i mitigar-ne les limitacions. Aquesta tesi explora la qualitat de l'encolat de fustes com el pi blanc, pi pinassa, pi silvestre i castanyer, per tal d'optimitzar les seves aplicacions. La investigació es divideix en tres fases. Primer, s‟analitza la qualitat de l‟encolat d‟aquestes espècies segons la normativa vigent. La segona fase avalua com el temps entre el raspallat i l'encolat afecta la qualitat de la unió. La tercera fase valora ladequació dels assaigs normatius i proposa provetes alternatives per a una avaluació més precisa. Es van fabricar 75 mostres de CLT amb adhesiu de melamina i poliuretà. Els resultats demostren la idoneïtat d'aquestes fustes per al CLT, destacant l'eficàcia de la melamina i la disminució de la qualitat de la unió si se superen les dues setmanes entre el raspallat i l'encolat. Les provetes alternatives proposades es validen com una opció fiable per avaluar la resistència de la unió.

The use of Mediterranean woods is limited due to their unique characteristics, which restrict their application in products requiring high homogeneity. However, appropriate processing could enhance their use. In this context, cross-laminated timber (CLT) opens new opportunities to enhance the value of these species and mitigate their limitations. This thesis explores the gluing quality of woods such as Aleppo pine, Corsican pine, Scots pine, and chestnut, with the aim of optimizing their applications. The research is divided into three phases. First, the gluing quality of these species is analyzed according to current regulations. The second phase evaluates how the time between planing and gluing affects bond quality. The third phase assesses the adequacy of regulatory testing and proposes alternative test specimens for a more accurate evaluation. Seventy-five CLT samples were manufactured with melamine and polyurethane adhesive. The results demonstrate the suitability of these woods for CLT, highlighting the effectiveness of melamine and the decrease in bond quality if more than two weeks pass between planing and gluing. The proposed alternative test specimens are validated as a reliable option for assessing bond strength.

Keywords

Delaminació, Delaminación, 62, Esforç tallant, Shear strength, Delamination, CLT, Clima mediterràni, Clima mediterráneo, Mediterranean climate, Esfuerzo cortante, Enginyeria Agroforestal

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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