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
First time-lapse footage of cell activity during limb regeneration
25.10.2016 | eLife
Phenotype at the push of a button
25.10.2016 | Institut für Pflanzenbiochemie
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
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