Caracterización de los hormigones realizados con áridos reciclados procedentes de la industria de cerámica sanitaria

Medina, César; Juan-Valdés, Andrés; Frías, Moisés; Rojas, M.I. Sánchez de; Morán, J. M.; Guerra, Manuel

doi:10.3989/mc.2011.59710

Cited by 28 publications

(28 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The physical and mechanical properties of the natural and recycled aggregates are shown in Table 1 (Medina et al 2011) which comply with the requisites established in standard EN 12620 (CEN. 2009b) and Spanish Code Structural Concrete (EHE-08) (Comisión Permanente del Hormigón 2008).…”

Section: Methodsmentioning

confidence: 95%

Influence of Interfacial Transition Zone on Engineering Properties of the Concrete Manufactured With Recycled Ceramic Aggregate

Medina

Zhu

Howind

et al. 2014

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

The influence of the local micro-properties of the interfacial transition zone (ITZ) on macro-properties on the behaviour concretes is studied for recycled concretes made with 20% and 25% recycled ceramic aggregate from sanitary ware waste. This study carried out using nanoindentation and SEM technique aims to explore interface thickness and variations in its elastic modulus. The results show that the minimum and mean values of the elastic modulus and the ITZ thickness impact concrete mechanical and elastic properties to different degrees. Finally, that nanoindentation provides an indispensable tool for studying and assessing the effect of new materials (e.g. recycled aggregates) on the micromechanical properties of the interfacial transition zone (ITZ) and its effect on engineering properties (compressive and splitting tensile strength and modulus of elasticity) of these new concretes.

show abstract

Section: Methodsmentioning

confidence: 95%

Influence of Interfacial Transition Zone on Engineering Properties of the Concrete Manufactured With Recycled Ceramic Aggregate

Medina

Zhu

Howind

et al. 2014

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

show abstract

“…For this reason, the need for seeking new applications in other industries where the ceramic waste can be recycled is becoming absolutely vital (3). Although the reutilization of ceramic waste as fine and coarse aggregates in the concrete production has been previously studied (4)(5)(6)(7), its use in structural concrete is not a common practice, particularly as fine aggregates (8). Thus, it seems that the best engineering applications found for recycling ceramic waste is as in non-structural concretes as recycled aggregates.…”

Section: Introductionmentioning

confidence: 99%

Recycling ceramic industry wastes in sound absorbing materials

et al. 2016

View full text Add to dashboard Cite

ABSTRACT:The scope of this investigation is to develop a material mainly composed (80% w/w) of ceramic wastes that can be applied in the manufacture of road traffic noise reducing devices. The characterization of the product has been carried out attending to its acoustic, physical and mechanical properties, by measuring the sound absorption coefficient at normal incidence, the open void ratio, density and compressive strength. Since the sound absorbing behavior of a porous material is related to the size of the pores and the thickness of the specimen tested, the influence of the particle grain size of the ceramic waste and the thickness of the samples tested on the properties of the final product has been analyzed. The results obtained have been compared to a porous concrete made of crushed granite aggregate as a reference commercial material traditionally used in similar applications. Compositions with coarse particles showed greater sound absorption properties than compositions made with finer particles, besides presenting better sound absorption behavior than the reference porous concrete. Therefore, a ceramic waste-based porous concrete can be potentially recycled in the highway noise barriers field. RESUMEN:Reciclado de residuos cerámicos en materiales absorbentes acústicos. El objetivo de este trabajo es desarrollar un material absorbente acústico compuesto fundamentalmente por residuos cerámicos (80% p) que se pueda utilizar en la fabricación de dispositivos reductores de ruido de carretera. La caracterización del producto se ha llevado a cabo atendiendo a sus propiedades acústicas, físicas y mecánicas, determinando el coeficiente de absorción acústica a incidencia normal, porosidad abierta, densidad y resistencia a compresión. La absorción acústica de un material poroso está fuertemente determinada por el tamaño de poro y por la longitud dela probeta sometida a ensayo. De este modo, se ha analizado la influencia del tamaño de partícula del residuo cerámico y del espesor de las muestras estudiadas en las propiedades del producto final. Los resultados obtenidos se han comparado con los obtenidos para un hormigón poroso elaborado con árido grueso, que se ha tomado como producto de referencia tradicionalmente empleado en este tipo de aplicaciones. Las composiciones elaboradas con el residuo de mayor tamaño de partícula han mostrado mayor absorción acústica, incluso mayor que las del hormigón poroso comercial. Por tanto, un hormigón poroso elaborado con residuos cerámicos puede ser potencialmente empleado como material en la fabricación de barreras acústicas de carretera.PALABRAS CLAVE: Hormigón; Ladrillos; Tratamiento de residuos; Árido; Distribución de tamaño de partículas 2 • C. Arenas et al.

show abstract

“…This feature of RA may cause mixing problems due to poorer workability, resulting in a lower water/cement (w/c) ratio in the paste and less compressive strength. Therefore, special precautions must be taken during the mixing process (6). In view of this, many studies have compared concrete containing RA with different levels of humidity (12,19,20) and developed dosage methods that have had a major effect on the properties of fresh and hardened concrete.…”

Section: Introductionmentioning

confidence: 99%

“…However, C&DW can be treated in appropriate industrial facilities to produce recycled aggregate (RA) that can be used to replace natural aggregate (NA) (2). For example, road construction (3), masonry mortar (4,5), structural and non-structural concrete (6,7), and even in pre-cast concrete products such as paving blocks (8), paving flags (9), kerbs (10) or partition wall blocks (11).…”

Section: Introductionmentioning

confidence: 99%

Study of potential advantages of pre-soaking on the properties of pre-cast concrete made with recycled coarse aggregate

et al. 2016

View full text Add to dashboard Cite

Recycled aggregate (RA) from construction and demolition waste is traditionally used for the manufacture of concrete for different applications. Due primarily to high water content required by RA, the quality of the concrete is determined by the amount of replacement RA. The aim of this study is to determine if RA pre-soaking enhances the properties of pre-cast concrete for street furniture, with low mechanical and structural requirements, in which 100% of the coarse fraction is replaced. The results of physical and mechanical tests performed on concrete specimens in which the RA was pre-soaked using five different methods applied are compared with a reference concrete sample and a concrete sample made with non-pre-soaked RA. The results show that non-pre-soaked RA offers improved physical-mechanical properties for pre-cast concrete, except for the workability; problems arising from poorer workability could be improved with the use of plasticizers, which can be easily included in the production process. RESUMEN: Estudio de las ventajas potenciales del premojado en las propiedades del hormigón prefabricado con árido reciclado grueso.El árido reciclado (AR) procedente de residuos de construcción y demolición se utiliza tradicionalmente en la elaboración de hormigón para diferentes aplicaciones. Debido principalmente al mayor contenido en agua requerido por el AR, la calidad del hormigón está determinada por la cantidad de AR reemplazado. El objetivo de este estudio es determinar si el AR premojado mejora las propiedades del hormigón prefabricado para mobiliario urbano, con bajas exigencias mecánicas y estructurales, en el que se sustituye el 100% de la fracción gruesa. Los resultados de los ensayos físicos y mecánicos realizados sobre muestras de hormigón en las cuales el AR se ha premojado usando cinco métodos diferentes se han comparado con una muestra de hormigón de referencia y una muestra de hormigón fabricada con AR no premojado. Los resultados muestran que el AR no premojado proporciona propiedades físico-mecánicas mejoradas en el hormigón prefabricado, a excepción de la trabajabilidad; los problemas derivados de una deficiente trabajabilidad pueden ser fácilmente corregidos con la incorporación de plastificantes en el proceso de fabricación.

show abstract

Caracterización de los hormigones realizados con áridos reciclados procedentes de la industria de cerámica sanitaria

Cited by 28 publications

References 8 publications

Influence of Interfacial Transition Zone on Engineering Properties of the Concrete Manufactured With Recycled Ceramic Aggregate

Influence of Interfacial Transition Zone on Engineering Properties of the Concrete Manufactured With Recycled Ceramic Aggregate

Recycling ceramic industry wastes in sound absorbing materials

Study of potential advantages of pre-soaking on the properties of pre-cast concrete made with recycled coarse aggregate

Contact Info

Product

Resources

About