Listar Química Inorgánica, Cristalografía y Mineralografía - (QICM) por título
Mostrando ítems 21-40 de 456
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Alite-belite-ye'elimite cements: Effect of dopants on the clinker phase composition and properties
(2018-10-30)Clinkers with alite-belite-ye'elimite (ABY) are considered as eco-friendly cements. Clinkering (2 Kg) of two types of ABY clinkers was optimized: standard-ABY, with CaF2 and ZnO as dopants (32.6 wt% alite, 30.4 wt% β-C2S ... -
Alternative non-Portland binders
(Mineralogical Society of America, 2022)A background on non-Portland cementitious binders is presented, followed by a review of the key alternative binders that are currently of interest. The mineralogy of these cements is described, along with phases present ... -
Aluminum Hydroxide Gel Characterization within a Calcium Aluminate Cement Paste by Combined Pair Distribution Function and Rietveld Analyses
(Elsevier, 2017-06)There are many commercially important multiphase materials which contain amorphous phases, such as cement pastes, porcelains, glass-ceramics or pharmaceutical compounds. However, the analysis of amorphous phase(s) within ... -
Aluminum-rich belite sulfoaluminate cements: clinkering and early age hydration
(Elsevier, 2009)Belite sulfoaluminate (BSA) cements have been proposed as environmentally friendly building materials, as their production may release up to 35% less CO2 into the atmosphere when compared to ordinary Portland cements. ... -
Ammonia effects on proton conductivity properties of coordination polymers
(2016-09-22)Crystalline metal phosphonates are referred to as a type of structurally versatile coordination polymers [1]. Many of them contain guest molecules (H2O, heterocyclics, etc.), acidic sites and, furthermore, their structure ... -
Amorphous determination in calcium sulfoaluminate materials by external and internal methods
(ICE Publishing, 2014)External standard methodology has been successfully applied to quantify the known amounts of amorphous component that are increasingly added to cement-related materials. The consistency and accuracy of the methodology were ... -
ANALYSIS OF BUILDING MATERIALS BY SYNCHROTRON X-RAY IMAGING
(-, 2021-01)Building materials have complex hierarchical microstructures. The largest components are coarse aggregates with dimensions larger than a few centimetres and the smallest ones are the calcium silicate hydrate (C-S-H) gel ... -
Analysis of cementitious building materials by synchrotron x-ray imaging
(2022)Cement manufacturing especially Portland Cement, the main component for the fabrication of concretes, is the most used building and construction material which has complex hierarchical microstructures. Quantitative ... -
Aplicación de estrategias de aprendizaje para la adquisición de competencias profesionales y su evaluación mediante una rúbrica integradora en diversos títulos de grado de la Universidad de Málaga
(2015-07-28)El Espacio Europeo de Educación Superior ha supuesto importantes cambios en el proceso de enseñanza-aprendizaje para la adquisición de competencias transversales y específicas. La calidad es un factor estratégico, por lo ... -
Aplicaciones de la espectroscopia fotoelectronica de rayos X en la caracterización de materiales funcionales
(UMA Editorial, 2016)El objetivo principal de esta Tesis es la aplicación de la espectroscopía XPS al estudio de distintos tipos de materiales inorgánicos y orgánicos, que tienen aplicaciones de interés en diferentes procesos medioambientales, ... -
Application of zeolites for the production of biofuels and furans from hexose sugars in ethanol.
(Elsevier, 2023-10-24)The use of zeolites as catalysts in the transformation of glucose and 5-hydroxymethylfurfural (HMF) into 5-ethoxymethylfurfural (EMF) was evaluated. The behaviour of the catalysts could be explained by their morphology, ... -
Applications of N,N-bis(phosphonomethyl)glycine-derived Sn4+ or Co2+ phosphonates as proton conductors or energy-conversion electrocatalysts.
(2023)Metal phosphonates (MPs), a subclass of coordination polymers, may exhibit acidic groups such as POH, SO3H, COOH, N+-H, etc. Combining these features with electrocatalytically active transition metals, make them highly ... -
Applications of synchrotron x-ray powder diffraction in hydrated cements: high-resolution and high-pressure studies
(2016-07-12)The main aim of this study is to apply synchrotron radiation techniques for the study of hydrated cement pastes. In particular, the tetracalcium aluminoferrite phase, C4AF in cement nomenclature, is the major iron-containing ... -
Arcillas caoliniticas de bajo grado: una alternativa como material cementante suplementario
(2018-07-12)La adición de metacaolín al cemento portland ha sido una alternativa en la industria cementera frente a los problemas ambientales y energéticos derivados de la producción de éste, además de lograr mejorar sus propiedades ... -
Asociación talco-fengita en esquistos blancos de la Zona Interna del Rif, Norte de Marruecos
(Sociedad Española de Mineralogía, 2019)La asociación talco-fengita como indicador de condiciones metamórficas de HP se conoce desde la publicación de Abraham y Schreyer (1976). Los estudios experimentales y teóricos han demostrado que esta asociación es estable ... -
Assessment of ATR-FTIR spectroscopy with multivariate analysis to investigate the binding mechanisms of Ag and TiO2 nanoparticles to Chelex®-100 or Metsorb™ for the DGT technique
(The Royal Society of Chemistry, 2020-01-09)Studying nanomaterials' ecotoxicology is not new but there are still gaps in our understanding of their fate in the environment. A major challenge is lack of reliable tools to measure available concentrations of nanoparticles ... -
Assessment of the quantitative accuracy of Rietveld/XRD analysis of crystalline and amorphous phases in fly ash
(2017)An internal standard method based on Rietveld/XRD whole-pattern fitting analysis of fly ash is used to assess the quantitative accuracy to determine its crystalline and amorphous phases under various conditions such as ... -
Assessment of the stability of LTA zeolites under natural gas drying TSA conditions.
(Elsevier, 2023-10-17)The main features in cationic LTA zeolites that are likely to impact its potential hydrothermal stability are interconnected. The Al content and the compensating cation play an important role in the water adsorption but ... -
Au-Cu/SBA(Ti) based catalysts for photocatalytic applications
(2018-06)In this work, it has been synthesized several Au and Au-Cu alloy photocatalysts supported on two different mesoporous supports: a non-commercial SBA-15 and a post-synthesis TiO2 modified SBA-15 (TiSBA-15), with which a ... -
Behavior of Belite cement blended with Calcium sulfoaluminate cement: an Ecocement
(2019-09-26)Belite Portland Cements (BPC) and calcium sulfoaluminate cements (CSA) are considered as environmentally friendly cements due to their lower CO2 emissions. These ecocements (BPC and CSA) emit about 0.03 and 0.18 less tons ...