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Listar por palabra clave "Hydration"

Mostrando ítems 1-12 de 12

A new geopolymeric binder from hydrated-carbonated cement

Paya Bernabeu, Jorge Juan; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª; Soriano Martínez, Lourdes; Mitsuuchi Tashima, Mauro (Elsevier, 2012-05)

This paper evaluates the use of hydrated Portland cement as the raw material in the production of geopolymers. The silicon and aluminium oxides needed for the geopolymerization process were produced by the carbonation of ...
Efecto de un aditivo extraído de la planta Agave americana sobre las propiedades físicas y mecánicas de un yeso

Ochoa, J.C.; Bonilla Salvador, María Mercedes; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan (Consejo Superior de Investigaciones CientÍficas (CSIC), 2013)

[EN] Physical and mechanical properties of a plaster paste added with an organic admixture, of the leaves of Agave americana, were studied. Plastic consistency behavior was evaluated and the water/gypsum(w/g) ratio was ...
Effect of intermittent high-intensity sonication and temperature on barley steeping for malt production

Reis de Carvalho, Gisandro; Carregari-Polachini, Tiago; Darros-Barbosa, Roger; Bon Corbín, José; Telis Romero, Javier (Elsevier, 2018-07)

[EN] Barley malt production comprises three main steps: steeping, germination, and drying. Ultrasound technology has been widely studied to find ways to improve mass transfer in food processes and, consequently, to reduce ...
Effects of sintering additives on defect chemistry and hydration of BaZr0.4Ce0.4(Y,Yb)0.2O3-δ proton conducting electrolytes

Dayaghi, Amir Masoud; Polfus, Jonathan M.; Strandbakke, Ragnar; Pokle, Anuj; Almar-Liante, Laura; Escolástico Rozalén, Sonia; Vollestad, Einar; Serra Alfaro, José Manuel; Haugsrud, Reidar; Norby, Truls (Elsevier, 2023-11-15)

[EN] The effects of NiO, ZnO, and CuO sintering additives (0.5, 1.0, or 2.0 wt%) on the sintering behaviour, effective acceptor concentration, and hydration thermodynamics are examined for BaZr0.4Ce0.4Y0.1Yb0.1O3_delta and ...
Evaluación de las propiedades eléctricas de morteros de cemento con puzolanas

Cruz González, José Mª; Paya Bernabeu, Jorge Juan; Lalinde Castrillón, Luis Felipe; Fita Fernández, Inmaculada Concepción (CSIC, 2011)

[ES] En este trabajo se analiza la microestructura de morteros de cemento Portland, mediante medidas de impedancia eléctrica. Se comparan morteros de cemento sin y con dos sustituciones puzolánicas: residuo de catalizador ...
Mineralogical evolution of Portland cement blended with silica nanoparticles and its effect on mechanical strength

Tobón, J. I.; Paya Bernabeu, Jorge Juan; Borrachero Rosado, María Victoria; Restrepo Baena, Oscar Jaime (Elsevier, 2012-11)

Mineralogical analysis on pastes of Spanish Portland cement Type I, blended with nanosilica was carried out by conventional and high-resolution thermogravimetric analysis (TG-HRTG) and X-ray diffraction (XRD) in order to ...
Performance of white portland cement matrixes blended with nanosilica and limestone for architectural applications

Tobón, Jorge Ivan; Mendoza, Oscar A.; Paya Bernabeu, Jorge Juan (Thomas Telford (ICE Publishing), 2016-10)

This research evaluates the combination of nanosilica particles and ground limestone as mineral additions for white Portland cement (WPC) matrixes, envisioning architectural applications where the whiteness of the final ...
Polyvinyl alcohol nanofiber reinforced Nafion membranes for fuel cell applications

Mollá Romano, Sergio; Compañ Moreno, Vicente (Elsevier, 2011-04-15)

This work has been focused on the preparation and characterization of composite membranes with thickness between 19 and 97 mu m and containing Nafion(R) infiltrated into a porous mat obtained by electrospinning of an aqueous ...
Regioselective Hydration of Alkynes by Iron(III) Lewis/Brønsted Catalysis

Cabrero Antonino, Jose Ramón; Leyva Perez, Antonio; Corma Canós, Avelino (Wiley-VCH Verlag, 2012-08-27)

The triflimide iron(III) salt [Fe(NTf2)3] promotes the direct hydration of terminal and internal alkynes with very good Markovnikov regioselectivities and high yields. The enhanced carbophilic Lewis acidity of the FeIII ...
Transformador de calor termoquímico para recuperación de calor residual industrial

Doudou, Yassine (Universitat Politècnica de València, 2020-05-15)

[ES] En el presente trabajo fin de Máster se estudia y se modela un transformador de calor termoquímico basado en reacciones sólido/gas con pares reactivos sal/H2O y sal/CO2 para elevar la temperatura del calor residual ...
Understanding paper flattening (I). Principles and problems of common flattening techniques

Muñoz Viñas, Salvador (Instituto Universitario de Restauración del Patrimonio de la UPV, 2006)

Paper flattening is a very common treatment in paper conservation. Conservators have developed a number of techniques which allow for the successful flattening of very different paper sheets. However, the principles behind ...
Vacuum impregnation as a sustainable technology to obtain iron-fortified broad bean (Vicia faba) flours

Arnal-Salinas, Milagros; Gallego, Marta; Mora, Leticia; Talens Oliag, Pau (The Royal Society of Chemistry, 2023-06-06)

[EN] Iron-fortified broad bean flours were obtained by vacuum impregnation during soaking. The impact of vacuum impregnation and iron fortification on the hydration kinetics of broad beans, as well as the processing (soaking, ...