Now showing items 1-11 of 11

  • 3D printed microstructured Au/TiO2 catalyst for hydrogen photoproduction 

    Elkoro Ugarteburu, Ander; Soler Turu, Lluís; Llorca Piqué, Jordi; Casanova Hormaechea, Ignasi (Elsevier, 2019-06-25)
    Article
    Restricted access - publisher's policy
    We successfully 3D printed Au/TiO2 monoliths for photogenerating hydrogen from water/ethanol gaseous mixtures under dynamic conditions. Monolith designs were printed by additive superposition of microfilaments of titania-based ...
  • 3D printing of structured nanotitania catalysts: a novel binder-free and low-temperature chemical sintering method 

    Elkoro Ugarteburu, Ander; Casanova Hormaechea, Ignasi (2018-09)
    Article
    Open Access
    Pure titania nanoparticles were used successfully to manufacture 3D prints of monoliths using a high-precision paste extruder and a novel binder-free, low-temperature chemical sintering method. Nanoparticles become bonded ...
  • A combined study of expansive and tensile strength evolution of mortars under sulfate attack: implications on durability assessment 

    Akpinar, Pinar; Casanova Hormaechea, Ignasi (2010-03-04)
    Article
    Open Access
    En este trabajo se presenta un estudio combinado de la evolución de la expansión y resistencia a tracción de cementos Portland con contenidos variables de C3A. Esta aproximación ha demostrado ser útil en el diagnóstico ...
  • Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model 

    Casanova Hormaechea, Ignasi; Agulló Fité, Luís; Aguado de Cea, Antonio (Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model, 1996)
    Article
    Open Access
    Oxidation and hydration of sulfides in aggregate materials can yield to expansive reactions that affect the durability of concrete. This process is, in principle, independent from the potential alkali-aggregate reactivity, ...
  • An X-ray photoelectron spectroscopy study of the hydration of C2S thin films 

    Rheinheimer, Vanessa; Casanova Hormaechea, Ignasi (2014-06)
    Article
    Restricted access - publisher's policy
    Electron-beam evaporation was used to produce thin films of ß-dicalcium silicate. Chemical and mineralogical compositions were characterized by X-ray photoelectron spectroscopy (XPS) and grazing-angle X-ray diffraction ...
  • Carbonation of high-calcium fly ashes and its potential for carbon dioxide removal in coal fired power plants 

    Cwik, Agnieszka Lucyna; Casanova Hormaechea, Ignasi; Rodriguez Rausis, Kwon Bok; Koukouzas, Nikolaos; Zarebska, Katarzyna (2018-08)
    Article
    Restricted access - publisher's policy
    Carbonation of industrial wastes rich in earth-alkali oxides is found to have a significant potential for CO2 sequestration. This process opens new perspectives not only for carbon dioxide mitigation, but also for the ...
  • Els materials de construcció: de l’aula a l’obra. Una experiència d’aprenentatge actiu en entorn virtual 

    Pardo Tràfach, Patricia; Vázquez Suñé, Enric; Casanova Hormaechea, Ignasi; Valls del Barrio, Susanna; Etxeberria Larrañaga, Miren; Alegre, Vicente; Llamas Gaspar, David; Piza Godall, M. Sabrina; Valero Valbuena, Carlos (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-02-11)
    Conference lecture / Conference report
    Open Access
    El projecte consisteix en el disseny i desenvolupament d’eines i metodologia adequades per tal de facilitar a l’alumnat la visualització, comprensió i estudi de diferents aspectes relatius als materials de construcció. Així, ...
  • Nanotecnología para la calefacción de componentes de automóvil 

    Carod de Arriba, Xavier; Ferreté Aymerich, Eduard; Casanova Hormaechea, Ignasi; González Benítez, María Margarita; Mendoza Gómez, Ernesto (2012)
    Conference lecture
    Open Access
    Desde hace ya unos años, el sector de la automoción centra sus esfuerzos en fabricar productos cada vez más eficientes y respetuosos con el medio ambiente. El creciente interés en desarrollar modelos eléctricos, ha ...
  • Production and characterization of clinker thin fi lms as a new tool for nanoscale studies of hydration mechanisms 

    Rheinheimer, Vanessa; Veglio, Néstor Raúl; Casanova Hormaechea, Ignasi (Instituto de Ciencias de la Construcción Eduardo Torroja (ICCET), 2011)
    Conference report
    Restricted access - publisher's policy
    Nanometer-sized films of clinker phases have been prepared using electron-beam evaporation methods with the aim to produce suitable samples for nanoscale studies of hydration mechanisms and nanomechanical properties of ...
  • Thin films as a tool for nanoscale studies of cement systems and building materials 

    Rheinheimer, Vanessa; Casanova Hormaechea, Ignasi (INtech, 2017)
    Part of book or chapter of book
    Open Access
    Many efforts have been made over the last decades to improve and develop new technologies for cement and chemical industries that can provide materials that are more durable and cost efficient, stronger and less environmentally ...
  • Utilization of high-calcium fly ashes through mineral carbonation: the cases for Greece, Poland and Spain 

    Cwik, Agnieszka Lucyna; Casanova Hormaechea, Ignasi; Rodriguez Rausis, Kwon Bok; Zarebska, Katarzyna (Elsevier, 2019-07)
    Article
    Restricted access - publisher's policy
    Limited utilization possibilities of high–calcium fly ashes (HCFA) are a serious issue not only in Europe, but also worldwide. The properties of such waste from coal-fired power plants could be conveniently treated in order ...