The chemist Mikel Arandigoyen Vidaurre, of the Department of Chemistry and Soil Sciences of the University of Navarra, has proved the effectiveness of new formulas for the restoration of buildings. In his thesis, defended at the School of Sciences, he proposes a combination of calcium and cement, which is able to strengthen the qualities of both materials.
The restoration of architectural patrimony currently presents certain problems of compatibility. Cement-based mortar is useful for its quick setting, but it is very aggressive with stone. In addition, it has too much mechanical resistance and a high content of soluble salts, which can cause problems in the medium or long term.
Calcium-based mortar offers less resistance and has a slower setting time. Nevertheless, it has qualities that are better adapted to restoration. This material presents a zone of plastic deformation which permits it to absorb, without breaking, the deformations that are common in monuments.
Irati Kortabitarte | alfa
The interactome of infected neural cells reveals new therapeutic targets for Zika
23.01.2017 | D'Or Institute for Research and Education
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20.01.2017 | GSI Helmholtzzentrum für Schwerionenforschung GmbH
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
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23.01.2017 | Life Sciences
23.01.2017 | Materials Sciences
20.01.2017 | Awards Funding