Exploració per tema "Cendres volants"
Ara es mostren els items 1-20 de 23
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Capacitat de retenció de fòsfor de diferents residus industrials en la descontaminació d'aigües de drenatge de camps de cultiu i d'aigües residuals
(Universitat Politècnica de Catalunya, 2021-10-21)
Treball Final de Grau
Accés obertPhosphorus is an essential element to all living organisms, and a limited resource; the overexploitation of phosphate rock to produce fertilizers, cleaning products and other substances is leading to a depletion of the ... -
Caracterización de la adsorcion de amonio y fosfato mediante zeolitas sintéticas modificadas
(Universitat Politècnica de Catalunya, 2015-04)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorEn el contexto legal actual se exige una eliminación del fósforo y nitrógeno casi completa en las aguas residuales. Por otro lado, conseguir recuperar estos nutrientes conllevaría beneficios tanto económicos como ecológicos ... -
Carbonation of high-Ca fly ashes under flue gas conditions: implications for their valorization in the construction industry
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-11)
Article
Accés obertThe utilization of high-calcium fly ashes (HCFA) from coal-fired power plants in the construction industry is problematic, since their high free lime contents can lead to durability problems. In this research, the carbonation ... -
Characterization of ammonium and phosphate adsorption by synthetic zeolite
(Universitat Politècnica de Catalunya, 2015-06)
Projecte/Treball Final de Carrera
Accés obertThe excess of nitrogen and phosphorus in the wastewater has caused crucial distortion in the nature such as eutrophication of water basins, disturbed the ecological balance and spoiled the water quality. Moreover, continuing ... -
Combining research and final degree project: Improvement of the fire behaviour of bamboo. Study in the species Guadua Angustifolia and Phyllostachys Pubescens.
(2023)
Text en actes de congrés
Accés obertPozzolanic additions are siliceous or aluminous materials that in the presence of water react with calcium hydroxide and form compounds with cementitious abilities. Despite pozzolans take their name from the volcanic scoria ... -
Comportamiento químico de cenizas volantes activadas mediante DRX y FTIR
(2014)
Text en actes de congrés
Accés obertThis work establishing the behavior of geopolymeric materials using X-ray diffraction (DRX) and Infrared Spectroscopy (FTIR). The results show that the geopolymer containing amorphous structure but turn different crystalline ... -
Diseño, análisis y aplicaciones de ecomateriales en base cemento
(Universitat Politècnica de Catalunya, 2021-06)
Projecte Final de Màster Oficial
Accés obertAquest treball presenta en primer lloc, una revisió bibliogràfica sobre els ciments de sulfoaluminato de calci i sobre la utilització de subproductes o residus, com a benefici mediambiental i, en segon lloc, un treball ... -
Estudi de la recuperació de fosfats d’aigües residuals amb zeolites sintètiques
(Universitat Politècnica de Catalunya, 2015-06)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorEn aquest projecte final de carrera s’estudia la recuperació de fosfats d’aigües residuals mitjançant l’adsorció en zeolites sintètiques i cendres volants de centrals tèrmiques de carbó. Es fan servir dues cendres volants ... -
Estudio de la recuperación de nutrientes de aguas residuales para la producción de fertilizantes low cost
(Universitat Politècnica de Catalunya, 2015-06)
Projecte/Treball Final de Carrera
Accés restringit per acord de confidencialitat -
Evaluation, comparison and differentiation of geopolymers by studying microstructural
(Institute of Research Engineers and Doctors (the IRED), 2015-04-30)
Article
Accés obertGeopolymers are materials derived from an activation process materials with high content in silicon and aluminum, that in contact with an alkaline solution can acquire cementitious properties, and whose added value is ... -
Experimental study of XRD, FTIR and TGA techniques in geopolymeric materials
(2014)
Text en actes de congrés
Accés restringit per decisió de l'autorThe alkali activation of fly ashes produces a solid and compact material having similar properties to those of portland cement (PC) with characteristics of sustainable high value; these materials with high silica and ... -
Extraction des métaux lourds de boues issues d´une séparation granulométrique de cendres volantes d´incinérateur. Cas particulier du plomb
(Universitat Politècnica de Catalunya / Université Libre Bruxelles, 2008)
Projecte/Treball Final de Carrera
Accés restringit per acord de confidencialitat -
Étude des potentialités d’incorporation de fractions ciblées de cendres volantes d’incinérateur dans du ciment comme réactif pouzzolanique
(Universitat Politècnica de Catalunya / Université Libre Bruxelles, 2008)
Projecte/Treball Final de Carrera
Accés restringit per acord de confidencialitat -
Influence of high volume fly ash and recycled aggregates in chloride and carbonation resistance of concrete
(Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2020)
Text en actes de congrés
Accés obertThis paper deals with the evaluation of the influence of recycled concrete aggregate (RCA) and the employment of high volume of fly ash (FA) on the physical, mechanical and durability (chloride ion penetration and carbonation) ... -
Magnetic separation of ilmenite used as an oxygen carrier in fluidized bed combustion
(Universitat Politècnica de Catalunya, 2021-07-01)
Treball Final de Grau
Accés obert
Realitzat a/amb: Chalmers tekniska högskolaThis bachelor thesis studies how oxidation and reduction cycles during oxygen carrier aided combustion (OCAC) operation, as well as ash interaction, affect the magnetic susceptibility of ilmenite particles used as oxygen ... -
Multifunctional cork – alkali-activated fly ash composites: a sustainable material to enhance buildings’ energy and acoustic performance
(2020-03-01)
Article
Accés obertThis work evaluates, for the first time, the possibility of producing multifunctional alkali-activated composites combining ultra-low density, low thermal conductivity, high acoustic absorption, and good moisture buffering ... -
Phosphate recovery by synthetic zeolite and fly-ash: sorption characterization and performance assessment in hybrid sorption-ultrafiltration pilot plant
(Universitat Politècnica de Catalunya, 2015-09)
Projecte/Treball Final de Carrera
Accés obertPhosphorus is a limited global resource; current studies have to be focused mainly on its recovery rather than its disposal. Thereby, the operational lifespan of this resource would be extended and in turn the phosphorus ... -
Phosphate recovery from aqueous solution by K-zeolite synthesized from fly ash for subsequent valorisation as slow release fertilizer
(Elsevier, 2020-08-20)
Article
Accés obertThe sorption of phosphate by K-zeolites synthesized from fly ash (FA) by hydrothermal conversion is investigated in this study. The aim is the synthesis of Ca bearing K-zeolites to recover phosphate from urban and industrial ... -
Report of RILEM TC 281-CCC: outcomes of a round robin on the resistance to accelerated carbonation of Portland, Portland-fly ash and blast-furnace blended cements
(2022-04)
Article
Accés restringit per política de l'editorialMany (inter)national standards exist to evaluate the resistance of mortar and concrete to carbonation. When a carbonation coefficient is used for performance comparison of mixtures or service life prediction, the applied ... -
Steam curing influence on fly ash high-performance recycled concrete
(2016-11)
Article
Accés restringit per política de l'editorialHigh-performance concrete (HPC) mixtures were produced using 100% coarse recycled concrete aggregates (RCAs) from three different qualities. The concretes were produced using two binders: portland cement and portland cement ...