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Listar por palabra clave "Silica fume"

Mostrando ítems 1-8 de 8

Control del uso de áridos reactivos contrarrestado con residuos de la industria: aplicación en obra en las islas Granadine

Valbuena Fos, Antonio Roberto (Universitat Politècnica de València, 2024-09-11)

[ES] El objetivo de este trabajo consiste en el diseño de dosificaciones de hormigón para las obras de remodelación del Puerto de Kingstown por parte de la empresa constructora Eiffage. El proyecto fortalecerá las estructuras ...
Developing Sustainable Ultra-High-Performance Concrete

Kareem, Rahman S; Alsalman, Ali; Dang, Canh N.; Martí Vargas, José Rocío; Hale, W. Micah (American Concrete Institute, 2022-05)

[EN] Ultra-high-performance concrete (UHPC) is characterized by high durability and enhanced mechanical properties. However, proprietary UHPC is not an eco-friendly material due to its high cement content. To improve these ...
Evaluation of key aggregate parameters on the properties of ordinary and high strength concretes

Salas-Montoya, Andrés; Mira-Rada, Beatriz E. (Universitat Politècnica de València, 2023-05-11)

[EN] This paper reports the results of a study conducted to determine the influence of coarse aggregate type on the workability, compressive strength, and flexural strength of normal and high strength concretes with target ...
Increase of the reactivity of densified silica fume by sonication treatment

Rodríguez Martínez, Erich David; Soriano Martínez, Lourdes; Paya Bernabeu, Jorge Juan; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª (Elsevier, 2012-09)

Five silica fumes from different manufacturers were subjected to ultrasonic treatment in order to decrease particle agglomeration and improve particle dispersion. The effectiveness of the sonication was observed as a ...
Mix design of durable concrete with the additions of silica fume or fly ash

Iovino, Renato; La Mantia, Emanuele (Universitat Politècnica de València, 2023-05-11)

[EN] The aim of the research is the laboratory study of a durable concrete, according to UNI-EN 206-1 and 11104, comparing four types of concrete by varying the type of binder to highlight some aspects of durability. For ...
New method to assess teh pozzolanic reactivity of mineral admixtures by measn of pH and electrical conductivity measurements in lime: pozzolan suspensions

Mitsuuchi Tashima, Mauro; Soriano Martínez, Lourdes; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Akasaki, Jorge Luis; Paya Bernabeu, Jorge Juan (Consejo Superior de Investigaciones Científicas (CSIC), 2014-09)

A very simple method based on electrical conductivity and pH measurements was proposed for assessing reactivity of pozzolans. Calcium hydroxide:pozzolan water suspensions were monitored by means of measurements of electrical ...
Preliminary Study of the Fresh and Hard Properties of UHPC That Is Used to Produce 3D Printed Mortar

Gimenez-Carbo, Ester; Torres, Raquel; Coll Carrillo, Hugo; Roig-Flores, Marta; Serna Ros, Pedro; Soriano Martinez, Lourdes (MDPI AG, 2022-04)

[EN] Three-dimensional printed concrete (3DPC) is a relatively recent technology that may be very important in changing the traditional construction industry. The principal advantages of its use are more rapid construction, ...
Structure of Portland Cement Pastes Blended with Sonicated Silica Fume

Rodriguez Martinez, Erich David; Bernal, Susan A.; Provis, John L.; Paya Bernabeu, Jorge Juan; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria (American Society of Civil Engineers, 2012)

[EN] Application of power ultrasound to enhance dispersion of commercial densified silica fume leads to increased compressive strengths and refinement of the pore structure in mortars, compared with those that are ...