Propiedades del hormigón de árido reciclado fabricado con adiciones, activa e inerte

Pavón, Elier; Etxeberria, Miren; Martínez, Iván López

doi:10.4067/s0718-915x2011000300002

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…In an additional study, the physical, mechanical and durability concrete properties made with 25% and 100% of recycled aggregates using active and inert additions in these mixes were described, comparing them against traditional concrete pattern (Pavón et al 2011). Regarding compressive strength, it was found that with 25% replacement of coarse aggregate without any additions equals the resistance attained by the natural concrete.…”

Section: State Of the Artmentioning

confidence: 99%

Reuse of Hydraulic Concrete Waste as a New Material in Construction Procedures: a Sustainable Alternative in Northwest Mexico

Moreno

Mungaray-Moctezuma

Alegría

2015

Revista de la Construcción

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Concrete demolition waste can be used as material for manufacturing high quality recycled coarse aggregates, which can replace natural aggregates to make hydraulic concrete mixes. In this study, the behavior of two hydraulic concrete mixes have been analyzed and tested under similar conditions. The comparison of natural concrete with 100% of natural aggregates, versus a specific recycled combination with 30% recycled coarse aggregate and 70% of natural coarse aggregate was studied. Results had shown a similar performance between the two concrete mixes after performing the mechanical tests in the laboratory. The incorporation of recycled aggregates in concrete allowed, in this case a competitive strength class one, which impact in reducing costs when applied in large concrete quantities. This alternative can represent a valuable environmental solution for construction and demolition waste disposal.Keywords: Concrete Recycling, Recycled Aggregate, Debris, Environmental Solution. ResumenLos escombros de concreto hidráulico representan materia prima para la producción de agregados que pueden ser utilizados en la elaboración de nuevas mezclas de concreto hidráulico. En este trabajo, se estudia el comportamiento de dos tipos de mezclas de concreto hidráulico elaboradas y probadas bajo condiciones similares, en una comparativa entre concretos naturales con un 100% de agregados naturales, y concretos reciclados con 30% de agregados gruesos reciclados y 70% de agregados gruesos naturales. Se observa un desempeño similar entre ambas mezclas al someterse a pruebas mecánicas practicadas en laboratorio. Se concluye que la incorporación de agregados reciclados con estas características específicas, permite concretos de resistencia competitiva de clase uno, que reducen los costos en el uso de concreto masivo y representan una solución ambiental para la disposición final de los residuos de construcción y demolición.

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Section: State Of the Artmentioning

confidence: 99%

Reuse of Hydraulic Concrete Waste as a New Material in Construction Procedures: a Sustainable Alternative in Northwest Mexico

Moreno

Mungaray-Moctezuma

Alegría

2015

Revista de la Construcción

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A comparative analysis of the properties of recycled and natural aggregate in masonry mortars

Martínez

Etxeberria

Pavón

et al. 2013

Construction and Building Materials

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Analysis of the Mechanical and Thermal Behaviour of Mortars Manufactured with Combined Use of Different Waste Products

Badilla

Letelier

Aros

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

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The present study analyses the incorporation of wastes into mortars, and the mechanical and physical response in mortars to the incorporation of these materials. Dosing must be such as to ensure that the test samples present a nominal degree of resistance of G-30. Recycled aggregates (RA) were obtained from the waste area of the prefabricated pieces production plant of Industrial y Comercial Burzio, Temuco, Chile, while biomass ash (BM) and crumb rubber (CR) were supplied by companies interested in the treatment and recycling of their waste. The matrix for the distribution of the replacement percentages was drafted using Taguchi statistical design, replacing natural aggregates with RA in proportions of 25% and 50%; CR was used to replace fine aggregates in proportions of 10% and 20%, and BM in proportions of 10%, 15% and 20%. Use of the study materials showed that with 10% of R, the mechanical properties were reduced; and that as the percentage of CR increased, the thermal conductivity diminished. The substitution of BM in a proportion of 10% increased the compression resistance and diminished conductivity by 20%. In the case of RA, the mechanical resistance was not diminished considerably compared to the control test samples, while the thermal conductivity diminished as the percentages of replacement material increased. The results showed that series S1 (0% RA, 0% R, 10% BM) and S2 (50% RA, 0% R, 15% BM) provided a compression resistance greater than 30 MPa, precisely the series which include no CR in the dosing. This result suggests that superficial pre-treatment of crumb rubber must be included in future experiments.

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Propiedades del hormigón de árido reciclado fabricado con adiciones, activa e inerte

Cited by 5 publications

References 12 publications

Reuse of Hydraulic Concrete Waste as a New Material in Construction Procedures: a Sustainable Alternative in Northwest Mexico

Reuse of Hydraulic Concrete Waste as a New Material in Construction Procedures: a Sustainable Alternative in Northwest Mexico

A comparative analysis of the properties of recycled and natural aggregate in masonry mortars

Analysis of the Mechanical and Thermal Behaviour of Mortars Manufactured with Combined Use of Different Waste Products

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