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Ternary mixes of self-compacting concrete with fly ash and municipal solid waste incinerator bottom ash

Simões, B. / Raposeiro da Silva, Pedro / Silva, Rui / Avila, Yoleimy / Forero Valencia, Javier Andres

This study aims to evaluate the potential of incorporating fly ash (FA) and municipal solid waste incinerator bottom ash (MIBA) as a partial substitute of cement in the production of self-compacting concrete mixes through an experimental campaign in which four replacement levels (i.e., 10% FA + 20% MIBA, 20% FA + 10% MIBA, 20% FA + 40% MIBA and 40% FA + 20% MIBA, apart from the reference concrete) were considered. Compressive and tensile strengths, Young’s modulus, ultra-sonic pulse velocity, shrinkage, water absorption by immersion, chloride diffusion coefficient and electrical resistivity were evaluated for all concrete mixes. The results showed a considerable decline in both mechanical and durability-related performances of self-compacting concrete with 60% of substitution by MIBA mainly due to the aluminium corrosion chemical reaction. However, workability properties were not significantly affected, exhibiting values similar to those of the control mix.

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Ternary mixes of self-compacting concrete with fly ash and municipal solid waste incinerator bottom ash

Simões, B. / Raposeiro da Silva, Pedro / Silva, Rui / Avila, Yoleimy / Forero Valencia, Javier Andres

This study aims to evaluate the potential of incorporating fly ash (FA) and municipal solid waste incinerator bottom ash (MIBA) as a partial substitute of cement in the production of self-compacting concrete mixes through an experimental campaign in which four replacement levels (i.e., 10% FA + 20% MIBA, 20% FA + 10% MIBA, 20% FA + 40% MIBA and 40% FA + 20% MIBA, apart from the reference concrete) were considered. Compressive and tensile strengths, Young’s modulus, ultra-sonic pulse velocity, shrinkage, water absorption by immersion, chloride diffusion coefficient and electrical resistivity were evaluated for all concrete mixes. The results showed a considerable decline in both mechanical and durability-related performances of self-compacting concrete with 60% of substitution by MIBA mainly due to the aluminium corrosion chemical reaction. However, workability properties were not significantly affected, exhibiting values similar to those of the control mix.

Ternary mixes of self-compacting concrete with fly ash and municipal solid waste incinerator bottom ash

Simões, B. / Raposeiro da Silva, Pedro / Silva, Rui / Avila, Yoleimy / Forero Valencia, Javier Andres

This study aims to evaluate the potential of incorporating fly ash (FA) and municipal solid waste incinerator bottom ash (MIBA) as a partial substitute of cement in the production of self-compacting concrete mixes through an experimental campaign in which four replacement levels (i.e., 10% FA + 20% MIBA, 20% FA + 10% MIBA, 20% FA + 40% MIBA and 40% FA + 20% MIBA, apart from the reference concrete) were considered. Compressive and tensile strengths, Young’s modulus, ultra-sonic pulse velocity, shrinkage, water absorption by immersion, chloride diffusion coefficient and electrical resistivity were evaluated for all concrete mixes. The results showed a considerable decline in both mechanical and durability-related performances of self-compacting concrete with 60% of substitution by MIBA mainly due to the aluminium corrosion chemical reaction. However, workability properties were not significantly affected, exhibiting values similar to those of the control mix.

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Titel:

Ternary mixes of self-compacting concrete with fly ash and municipal solid waste incinerator bottom ash

Beteiligte:

Simões, B. (Autor:in) / Raposeiro da Silva, Pedro (Autor:in) / Silva, Rui (Autor:in) / Avila, Yoleimy (Autor:in) / Forero Valencia, Javier Andres (Autor:in)

Erscheinungsdatum:

01.01.2020

Anmerkungen:

doi:10.3390/app11010107
Applied Sciences ; https://www.mdpi.com/2076-3417/11/1/107

DOI:

https://doi.org/10.3390/app11010107

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Incineration , Fly ash , Self-compacting concrete , Municipal solid waste , Bottom ash

Klassifikation:

DDC: 690

Lizenzbestimmungen:

http://creativecommons.org/publicdomain/zero/1.0/

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