{"id":78907,"date":"2006-02-03T00:00:00","date_gmt":"2006-02-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-y-reactividad-de-materiales-puzolanicos-el-humo-de-sa%c2%adlice-y-su-estado-de-densificacion\/"},"modified":"2006-02-03T00:00:00","modified_gmt":"2006-02-03T00:00:00","slug":"caracterizacion-y-reactividad-de-materiales-puzolanicos-el-humo-de-sa%c2%adlice-y-su-estado-de-densificacion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/caracterizacion-y-reactividad-de-materiales-puzolanicos-el-humo-de-sa%c2%adlice-y-su-estado-de-densificacion\/","title":{"rendered":"Caracterizaci\u00f3n y reactividad de materiales puzol\u00e1nicos: el humo de s\u00edlice y su estado de densificaci\u00f3n"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Diego Alfonso Martinez Velandia <\/strong><\/h2>\n<p>El humo de s\u00edlice puzolana muy reactiva, es un subproducto de la fabricaci\u00f3n de silicio elemental (si) y aleaciones ferrosil\u00edceas en hornos de arco el\u00e9ctrico. El humo de s\u00edlice es sometido a procesos de densificaci\u00f3n para ser transportado con mayor facilidad y reducir as\u00ed los costes generales de su distribuci\u00f3n, y tambi\u00e9n para disminuir los riesgos laborales por inhalaci\u00f3n del material en su estado natural no densificado. Debido a este tratamiento del humo de s\u00edlice (hs) ha visto reducida su reactividad puzol\u00e1nica, por tanto, en el presente trabajo nos planteamos la activaci\u00f3n del humo de s\u00edlice densificado (hsd) mediante distintos tratamientos f\u00edsicos, los cuales pretenden conseguir esencialmente que el material, al ser incorporado en pastas y morteros de cemento, incremente sus prestaciones con respecto del humo de s\u00edlice densificado comercial (hsd).  el presente trabajo se realiza en cinco fases cuyos planteamientos y resultados describimos brevemente a continuaci\u00f3n:  * primera fase: caracterizaci\u00f3n de distintas muestras de humo de s\u00edlice, tales como su composici\u00f3n qu\u00edmica, composici\u00f3n mineral\u00f3gica, morfol\u00f3gica, densidad, superficie espec\u00edfica y granulometr\u00eda. Se observ\u00f3 que todos los humos de s\u00edlice densificados estudiados presentan superficies espec\u00edficas similares por bet, sin embargo, la granulometr\u00eda de cada uno de ellos var\u00eda considerablemente, debido a la presencia de aglomerados de micropart\u00edculas y submicropart\u00edculas de hs.  * segunda fase: se aplican distintos tratamientos f\u00edsicos al humo de s\u00edlice para lograr la desagregaci\u00f3n de las grandes part\u00edculas densificadas. El primero de ellos, la molienda del material en peque\u00f1as y grandes cantidades; el segundo, la molienda conjunta del humo de s\u00edlice densificado (hsd) con la ceniza volante (cv), la cual puede actuar como agente disgregador de los aglomerados de hs; y por \u00faltimo, la aplicaci\u00f3n de un ba\u00f1o de ultrasonidos a muestras de humo<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracterizaci\u00f3n y reactividad de materiales puzol\u00e1nicos: el humo de s\u00edlice y su estado de densificaci\u00f3n<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracterizaci\u00f3n y reactividad de materiales puzol\u00e1nicos: el humo de s\u00edlice y su estado de densificaci\u00f3n <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Diego Alfonso Martinez Velandia <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 02\/03\/2006<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Paya Bernabeu Jorge  Juan<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel angel Climent llorca <\/li>\n<li>moises Frias rojas (vocal)<\/li>\n<li>pedro Garc\u00e9s terradillos (vocal)<\/li>\n<li>enric Vazquez ramonic (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Diego Alfonso Martinez Velandia El humo de s\u00edlice puzolana muy reactiva, es un subproducto de la fabricaci\u00f3n [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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