Results 41 to 50 of about 6,754 (220)
Con motivo de la conferencia sobre "Puentes modernos", del cursillo para Inspectores y Jefes de la Dirección General de Carreteras, en el Instituto Técnico de la Construcción, el conferenciante, profesor Fernández Casado, comenzó su disertación con la siguiente exposición de la obra de Eduardo Torroja en el ramo de puentes.
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Mullite production by valorization of a hydrodesulphurization catalyst waste
Due to its high alumina and silica content, Ni–Mo catalyst waste is a suitable, amorphous raw material for producing aluminosilicate phases. Thermal treatment of the waste at 1200°C for 30 min yields a material containing 50 wt.% mullite and exhibiting 96% overall crystallinity. The addition of amorphous silica significantly enhances mullite formation:
Rafael Carrizosa +4 more
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New advances in the carbonation of aluminous cement. Alkaline hydrolisis
The carbonation process of aluminous cement in presence of high alkali content is studied. In this work, the formation of a compound which formula is close to K4Al6(CO3)11-x(OH)2x(H2O)y is shown for the studies samples. The aluminous cement carbonation
L. Fernández-Carrasco +3 more
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ABSTRACT Charophytes (stoneworts) often dominate the submerged vegetation in nutrient‐poor hardwater lakes, where they support high benthic phosphorus (P) retention. As a consequence, epilimnion P concentrations remain low and water clarity high, resulting in a positive feedback.
Sabine Hilt +7 more
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Calcium aluminate cement hydration in a high alkalinity environment
The present paper forms part of a broader research project that aims primarily to devise new cementitious products via the alkali activation of silico-aluminous materials.
C. Pastor +3 more
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Presentación [del libro "De la construcción a la ciencia. Ayer y hoy de Eduardo Torroja"] [PDF]
El 27 de agosto se cumplieron los 100 años del nacimiento de Eduardo Torroja Miret (1899-1961), a cuya memoria va dedicada esta reunión conjunta de la Real Academia de Ciencias, a la que perteneció, y de la Academia de Ingeniería.
Alarcón Álvarez, Enrique
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Abstract Submerged macrophytes are key components in many freshwater and marine ecosystems, contributing to ecosystem functions and services. In temperate shallow lakes, spring epiphyton shading can be decisive for submerged macrophyte development, potentially leading to macrophyte collapse and a shift to undesired, turbid conditions. Global change can
Alena S. Gsell +3 more
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Reparación de revocos de morteros. Nuevos documentos normativos de AENOR
Los procedimientos de actuación en las fachadas de edificios muchas veces pasan por la conservación y restauración de revocos de mortero, que actualmente han sido objeto de nuevos documentos normativos de AENOR, que es la entidad responsable del ...
M. Corroto +4 more
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Torroja y las láminas de hormigón en la posguerra española:el gimnasio-piscina de la Escuela naval de Marín [PDF]
Congreso Nacional de historia de la construcción(4º.2005.Cádiz)El recinto militar de la Escuela Naval de Marín alberga numerosos edificios de tamaños, funciones y estilos diversos, que sirven a las distintas instalaciones militares.
Jaureguizar, Francisco +1 more
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Eduardo Torroja: The Alloz Aqueduct
Eduardo Torroja Miret graduated as an engineer in 1923. That same year, after a bloodless coup d’état, General Primo de Rivera assumed the control of government in Spain and launched a modernizing economic program clearly based on infrastructure: development of the telephone network, modernization of ports, tramway system expansion, creation of 800 km ...
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