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Browsing by Subject "Fly ash"

Now showing items 1-20 of 27

Blending of industrial waste from different sources as partial substitution of portland cement in pastes and mortars

Baeza, F.; Paya Bernabeu, Jorge Juan; Galao Malo, Oscar; Saval, J.M.; Garcés, Pedro (Elsevier, 2014-09)

Binary and ternary combinations of sewage sludge ash (SSA) with marble dust (MD), fly ash (FA) and rice husk ash (RHA) as replacement in Portland cement pastes, were assessed. Several tests were carried out at different ...
Comparativas de resistencias mecánicas entre morteros tradicionales y morteros de distintas mezclas con cal y subproductos industriales

Rodríguez Cózar, Javier (Universitat Politècnica de València, 2014-11-17)

[ES] En el presente trabajo se ha realizado un estudio comparativo de resistencia mecánica a compresión entre morteros con diferentes adiciones: ceniza de cascara de arroz, ceniza volante y escoria siderúrgica de alto ...
Concrete for precast blocks: binary and ternary combination of sewage sludge ash with diverse mineral residue

Baeza-Brotons, Francisco; Paya Bernabeu, Jorge Juan; Galao, Oscar; Alberti, Marcos G.; Garcés, Pedro (MDPI AG, 2020-10)

[EN] This paper proposes binary and ternary combinations of sewage sludge ash (SSA) with fly ash (FA), marble dust (MD) and rice husk ash (RHA) as partial replacements of Portland cement in concretes with a similar dosage ...
Durabilidad de cementos activados alcalinamente: Resistenica al ataque ácido

Pérez Ramos, Martha Iris (Universitat Politècnica de València, 2016-09-12)

[EN] Nowadays, the emissions of carbon dioxide (CO2) to the atmosphere from the production of Portland cement clinker are approximately 1.00 kg per kilogram of cement manufactured. Study the durability of alternative ...
Efecto del ácido cítrico en el sistema cemento/yeso/ceniza volante

Arilla Agorriz, Elías (Universitat Politècnica de València, 2014-05-22)

[ES] Los sistemas ternarios de cemento portland (CP), yeso y ceniza volante (CV), con bajo contenido en CP pueden resultar de interés en diversas aplicaciones en construcción permitiendo obtener materiales de bajo coste. ...
Effects of a Real Exposure Class XC4 Mediterranean Climate Environment in the Behavior of Mortars Made Using Ternary Binders with Addition of Slag, Fly Ash and Limestone

Ibáñez-Gosálvez, Javier; Real-Herraiz, Teresa Pilar; Marcos Ortega, Jose (MDPI AG, 2021-10-06)

[EN] For improving the contribution of the cement industry to mitigate global warming, many strategies have been put into practice, such as the use of eco-friendly cements with the incorporation of additions substituting ...
Estudio de hormigones con conglomerante cemento-yeso-puzolana

Rijo Mercedes, Joelia (Universitat Politècnica de València, 2014-11-28)

[EN] To study the mechanical properties and durability of concrete moisture conditions based on the system-pozzolan cement plaster, offering potential economic and environmentally viable solutions
Estudio de la durabilidad de morteros ecológicos obtenidos con residuos industriales

Garcés Casal, Nicolás (Universitat Politècnica de València, 2014-11-24)

[ES] Trabajo de Fin de Grado (TFG) en modalidad de proyecto técnico de construcción correspondiente al área temática: Construcción y Medio Ambiente. El TFG parte con una primera fase teórica de documentación y concluye con ...
Evaluación, mediante medidas de espectroscopia de vibración de composites fabrica-dos con fibras de vidrio álcali-resistente (GRC) y altos contenidos en ceniza volante

Riestra García-San Miguel, Covadonga (Universitat Politècnica de València, 2014-11-24)

[EN] The use of glass fibers to prepare composites (GRC) with Portland cement matrix makes them weak because of the alkalinity around them, wich is generated mainly by the portlandite. The fibres deteriorate themselves ...
Evaluation of the pozzolanic activity of spent FCC catalyst/fly ash mixtures in Portland cement pastes

Velázquez Rodríguez, Sergio; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Soriano Martínez, Lourdes; Paya Bernabeu, Jorge Juan (ELSEVIER SCIENCE BV, 2016-05)

High pozzolanic activity of the residue spent catalytic cracking catalyst (FCC) has been reported by various authors in recent years. However, no report on the lime fixation of this residue when dosed together with other ...
Experimental study of Steel-Concrete Composite Beams comprised of Fly ash based Geopolymer concrete

Singh, Balbir; Tan, Ee; Pan, Zhu; Mirza, Olivia; Boncato, Julius (Editorial Universitat Politècnica de València, 2018-06-05)

[EN] To combat the present situation of greenhouse gases emission from cement production, a promising solution is to utilise supplementary cementitious by-product materials such as fly ash to produce green concrete known ...
Failure Mechanism of Foam Concrete with C-Channel Embedment

Liu, Dianzhong; Wang, Fayu; Fu, Feng (Editorial Universitat Politècnica de València, 2018-06-05)

[EN] Forty-eight tests have been carried out to find of the failure mode of a new type of the foam concrete using C-Channels as embedements. Four groups of foam concrete specimens with various embedment depths of the steel ...
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 ...
Huella de carbono de sistemas conglomerantes: Cemento Portland / Ceniza volante / Cal hidratada

Lozano Prado, Rafael (Universitat Politècnica de València, 2022-01-14)

[ES] La sustitución de Cemento Portland por Cenizas Volantes es una práctica bien conocida que resulta beneficiosa por varios motivos: 1. Se reduce la cantidad de Cemento Portland, lo que supone un ahorro económico y ...
Ifluencia del tratamiento de separación magnética en las cenizas volantes en morteros de cemento Portland:propiedades en estado fresco y endurecido

Soriano Martínez, Lourdes (Universitat Politècnica de València, 2014-06-30)

[ES] La ceniza volante es un material puzolánico empleado en la industria de la construcción desde hace varias decádas. En su composición, dependiendo de su origen existen óxidos de hierro, principalmente magnetita y ...
Influence of hydrated lime on the chloride-induced reinforcement corrosion in eco-efficient concretes made with high-volume fly ash

Valcuende Payá, Manuel Octavio; Calabuig Pastor, Rafael; Martínez-Ibernón, Ana; Soto Camino, Juan (MDPI AG, 2020-11)

[EN] The main objective of this study was to analyze the influence that the addition of finely ground hydrated lime has on chloride-induced reinforcement corrosion in eco-efficient concrete made with 50% cement replacement ...
La necesidad de nuevos hormigones para una construcción más sostenible: los geopolímeros

Tejedor Montagud, Joan (Universitat Politècnica de València, 2019-01-21)

[ES] Actualmente, gracias al hormigón se pueden construir todo tipo de edificios, con múltiples formas, texturas y acabados diferentes. Es el material de construcción más utilizado a nivel mundial. El problema, es que ...
Microconcrete with partial replacement of Portland cement by fly ash and hydrated lime addition

Lorca, P.; Calabuig Pastor, Rafael; Benlloch Marco, Javier; Soriano Martínez, Lourdes; Paya Bernabeu, Jorge Juan (Elsevier, 2014-12)

[EN] The reduction in Portland cement consumption means lower CO2 emissions. Partial replacement of Portland cement by pozzolans sucha as fly ash has its limitations due to the quantity of calcium hydroxide generated in ...
Microstructure, Durability and Mechanical Properties of Mortars Prepared Using Ternary Binders with Addition of Slag, Fly Ash and Limestone

Ibáñez-Gosálvez, Javier; Real-Herraiz, Teresa Pilar; Ortega, José Marcos (Springer, 2021-07)

[EN] In order to improve the contribution to sustainability of cement production, several strategies have been developed, such as the incorporation of additions as clinker replacement. Regarding the production of commercial ...
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 ...