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Listar por palabra clave "Pozzolan"

Mostrando ítems 1-20 de 31

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An approach to a new supplementary cementing material: Arundo donax straw ash material

Paya Bernabeu, Jorge Juan; Rosello Caselles, Josefa; Monzó Balbuena, José Mª; Escalera, A.; Santamarina Siurana, Mª Pilar; Borrachero Rosado, María Victoria; Soriano Martinez, Lourdes (MDPI AG, 2018)

[EN] Arundo donax is a plant native to Asia and is considered an invader species in the Mediterranean region and many tropical zones in the world. These invader plants can be collected to produce a biomass, which can be ...
CARACTERIZACIÓN DE UHPFRC: ESTUDIO DE LAS PROPIEDADES REOLÓGICAS Y MECÁNICAS PARA DOSIFICACIONES DE DISTINTOS NIVELES DE RENDIMIENTO

Camacho Torregrosa, Esteban Efraím (Universitat Politècnica de València, 2011-07-26)

Trabajo en el que se elaboran 47 dosificaciones de UHPFRC con diferentes niveles de calidad y disponibles en el mercado español. Se estudia el efecto de los parámetros en la evolución de la resistencia a compresión y en ...
Caracterización química y reactividad de la ceniza de caña común y planta de maíz, para su uso como adición puzolánica en morteros y hormigones

Escalera Cruz, Alejandro (Universitat Politècnica de València, 2013-06-26)

[ES] Desde hace unos años a través de múltiples investigaciones, es sabido que el contenido en sílice de las cenizas procedentes de la combustión de residuos agrícolas, dependiendo del proceso de combustión, puede tener ...
Characterization and Reactivity of Natural Pozzolans from Guatemala

Sierra, Oscar M.; Paya Bernabeu, Jorge Juan; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Soriano Martinez, Lourdes; Quiñonez, Javier (MDPI AG, 2022-11)

[EN] The possibility of using pozzolanic materials as a partial substitute for Portland cement (PC) to develop mortars and concretes promotes environmental and economic benefits. The present paper includes an in-depth ...
Durability of glass fiber reinforced cement (GRC) containing a high proportion of pozzolans

Lalinde, Luis Felipe; Mellado Romero, Ana María; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª; Paya Bernabeu, Jorge Juan (MDPI AG, 2022-04)

[EN] Glass fiber reinforced cement (GRC) is an excellent composite for architects and engineers because it can be molded to produce laminar panels or to create complicated designs. GRC is a fine concrete reinforced with ...
Effect of different high surface area silicas on the rheology of cement paste

Tobón, J.I.; Mendoza, O.; Restrepo, O.J.; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan (Departmento de Publicaciones del CSIC, 2020-12)

[ES] Efecto de diferentes sílices de alta área superficial sobre la reología de pastas de cemento. Este tra¬bajo estudia el efecto de la nanosílice (NS) sobre la reología de pastas de cemento por comparación con sílices ...
Effect of silicoaluminous pozzolans on the hydration process of the Portland cement cured at low temperatures

Soriano Martínez, Lourdes; Monzó Balbuena, José Mª; Bonilla Salvador, María Mercedes; Tashima, Mauro M.; Paya Bernabeu, Jorge Juan; Borrachero Rosado, María Victoria (Elsevier, 2013-09)

The aim of this paper is to study hydration processes in cement pastes and mortars, blended with either metakaolin (MK) or a catalyst used in catalytic cracking (FCC), and cured at low temperature. The amounts of hydrates ...
EL FRAGUADO Y ENDURECIMIENTO DE MEZCLAS CEMENTO/YESO/PUZOLANA. EFECTO DE AGENTES RETARDANTES

Ariño Montoya, David (Universitat Politècnica de València, 2011-09-06)

En este trabajo se realiza un estudio de los tiempos de fraguado y endurecimiento por distintos métodos de pastas yeso/cemento con y sin adiciones puzolanicasy la influencia sobre estos parámetros de agentes retardantes ...
Evaluación de la reactividad puzolánica de la ceniza de paja de arroz

Hidalgo Astudillo, Samantha Elizabeth (Universitat Politècnica de València, 2018-07-11)

The purpose of this aim is to determine the pozzolanic properties, as well as the physical and chemical characteristics of rice straw ash for use as an admixture in concrete mixtures with Portland cement. A material is ...
Evaluation of rice straw ash as a pozzolanic addition in cementitious mixtures

Hidalgo, Samantha; Soriano Martinez, Lourdes; Monzó Balbuena, José Mª; Paya Bernabeu, Jorge Juan; Font, Alba; Borrachero Rosado, María Victoria (MDPI AG, 2021-01)

[EN] Rice husk ash is one of the most widely studied biomass ashes used in pozzolanic addition. Given its lower silica content, rice straw ash (RSA) has been explored less often, despite the fact that, according to the ...
Evaluation of the Pozzolanic Activity of Uncontrolled-Combusted Sewage Sludge Ash

Istuque, Danilo Bordan; Reig, Lucia; Soriano Martinez, Lourdes; Borrachero Rosado, María Victoria; Pinheiro Melges, Jose Luiz; Akasaki, Jorge Luis; Paya Bernabeu, Jorge Juan; Tashima, Mauro Mitsuuchi (American Society of Civil Engineers, 2021-06-01)

[EN] Waste management is a crucial issue facing modern society. The generation of sewage sludge is increasing annually due to the urbanization and improvement of sanitation systems of cities. The construction sector has ...
High strength mortars using ordinary Portland cement-fly ash-fluid catalytic cracking ctalyst residue ternary system (OPC/FA/FCC)

Soriano Martínez, Lourdes; Paya Bernabeu, Jorge Juan; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Mitsuuchi Tashima, Mauro (Elsevier, 2016-03)

The use of ternary systems composed of ordinary Portland cement (OPC) and two pozzolanic mineral admixtures could supply several advantages in terms of the properties in both fresh and hardened states. Fly ash (FA) and ...
Hybrid lime-pozzolan-geopolymer systems: microstructural, mechanical and durability studies

Villca, Ariel Rey; Soriano Martinez, Lourdes; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan; Monzó Balbuena, José Mª; Mitsuuchi Tashima, Mauro (MDPI AG, 2022-04-08)

[EN] This work studies the possibility of using geopolymer materials to enhance the mechanical and durability properties of hydrated lime¿pozzolan mixtures, which gave rise to the so-called ¿hybrid systems¿. Two different ...
Lime/pozzolan/geopolymer systems: Performance in pastes and mortars

Villca, Ariel R.; Soriano Martinez, Lourdes; Font, Alba; Tashima, Mauro M.; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan (Elsevier, 2021-03-22)

[EN] Use of lime as construction material is limited mainly by low initial strength. These properties can be improved by adding pozzolanic materials, but the evolution of the reaction usually needs older ages than 7 days. ...
Mechanical strength of lime-rice Husk ash mortars: A preliminary study

Méndez Mutschler, Rosana Felipa; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan; Monzó Balbuena, José Mª (Trans Tech Publications Ltd., 2012)

Rice is produced in many countries in the world, and this product permits to feed a lot of people, most of them in developing countries. Approximately one tone of rice produces 200 Kg of rice husk, and when this rice husk ...
Microscopic chemical characterization and reactivity in cementing systems of elephant grass leaf ashes

Rosello Caselles, Josefa; Soriano Martinez, Lourdes; Savastano, H.; Borrachero Rosado, María Victoria; Santamarina Siurana, Mª Pilar; Paya Bernabeu, Jorge Juan (Cambridge University Press, 2018)

[EN] Many agrowastes are being used for energy production by combustion in power plants. This process generates huge amounts of ash, which has a potential pozzolanic activity for blending with Portland cement or hydrated ...
Microscopy Characterization of Silica-Rich Agrowastes to be used in Cement Binders: Bamboo and Sugarcane Leaves

Rosello Caselles, Josefa; Soriano Martínez, Lourdes; Santamarina Siurana, Mª Pilar; Akasaki, Jorge Luis; Melges, J. L. P.; Paya Bernabeu, Jorge Juan (Cambridge University Press (CUP): STM Journals - No Cambridge Open, 2015-10)

Agrowastes are produced worldwide in huge quantities and they contain interesting elements for producing inorganic cementing binders, especially silicon. Conversion of agrowastes into ash is an interesting way of yielding ...
Mineralogical evolution of Portland cement blended with silica nanoparticles and its effect on mechanical strength

Tobón, J. I.; Paya Bernabeu, Jorge Juan; Borrachero Rosado, María Victoria; Restrepo Baena, Oscar Jaime (Elsevier, 2012-11)

Mineralogical analysis on pastes of Spanish Portland cement Type I, blended with nanosilica was carried out by conventional and high-resolution thermogravimetric analysis (TG-HRTG) and X-ray diffraction (XRD) in order to ...
NUEVAS MEZCLAS CEMENTANTES BASADAS EN CAL

Méndez Mutschler, Rosana Felipa (Universitat Politècnica de València, 2011-09-06)

Estudio de las propiedades mecánicas de los morteros preparados con mezclas de cal-puzolana-cemento y mezclas de cal-puzolana, variando las proporciones.
Nuevos materiales conglomerantes a partir de tierras diatomeas de distinto origen: reactividad puzolanica

Carranza Terreros, Ricardo Antonio (Universitat Politècnica de València, 2017-06-27)

In the world, cement is an essential product that covers a variety of needs in a society. The production of cement represents the sector that, at a global level, generates the most amount of greenhouse gas emissions ...