Modelling the effect of the cement components fineness on performance and environmental impact of composite cements

Zając, Maciej; Bolte, G; Skoček, Jan; Haha, Mohsen Ben

doi:10.1016/j.conbuildmat.2020.122108

Cited by 12 publications

(4 citation statements)

References 30 publications

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“…When 50% of cement was replaced by secondary mining resources (M50), a decrease of 49% in GWP was achieved (55.1 kg CO 2 eq.) Zajac et al [39] reported the same trend, where CO 2 emissions depend on the cement composition, and also on the level of fineness of the components. Since the emissions associated to the cement clinker are significantly higher than for other materials, the modification of the binder composition results in a significant reduction of the GWP [39].…”

Section: Impacts Of Raw Materials In Mortar Manufacturementioning

confidence: 69%

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Life Cycle Assessment of Mortars Produced Partially Replacing Cement by Treated Mining Residues

et al. 2021

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The use of secondary mining resources to replace conventional constituents in mortars production has proved the effectiveness to preserve the quality of mechanical, physical, and chemical properties. However, minimal research has been performed to quantify the environmental impacts of mortars with mining residues. In the present work, a life cycle assessment of 10 mortars was carried out. A reference mortar (100% of cement binder) and mortars with cement substitutions in 10, 25, and 50% by raw, electrodialytic treated, and electrodialytic plus thermal treated mining residues were analysed. The impacts were studied in six environmental categories: (1) abiotic depletion; (2) global warming; (3) ozone depletion; (4) photochemical ozone creation; (5) acidification; and (6) eutrophication potentials. The results demonstrated that mortars formulated with raw mining residues may decrease the environmental impacts, namely in global warming potential (55.1 kg CO2 eq./t modified mortar). Considering the treatments applied to mining residues, the major mitigations were reported in photochemical ozone creation (−99%), ozone depletion (−76 to −98%), and acidification potential (−90 to −94%), mainly due to the disposal impacts avoided in comparison to the reference mortar. Analysing all mortars’ constituents and their management options, products with electrodialytic treated mining residues showed higher influence in ozone depletion (18 to 52%). Coupling a thermal procedure, mining residues contributed for 99% of the abiotic depletion potential of mortars.

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Section: Impacts Of Raw Materials In Mortar Manufacturementioning

confidence: 69%

“…The POCP is mainly related to the technology involved in raw materials production. In particular, grinding contributes to approximately 50% of the energy consumed from cement production [39]. This may contribute to the higher emissions from REF (1.76 × 10 −2 kg ethene eq.)…”

Section: Impacts Of Raw Materials In Mortar Manufacturementioning

confidence: 99%

Life Cycle Assessment of Mortars Produced Partially Replacing Cement by Treated Mining Residues

et al. 2021

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“…and enforced carbonation [93,94], and glass production via thermal treatment and fast quenching [95,96].…”

Section: Phase Assemblage During Cement Hydrationmentioning

confidence: 99%

Roles of carbonated recycled fines and aggregates in hydration, microstructure and mechanical properties of concrete: A critical review

Zhang

Chen

Wang

et al. 2023

Cement and Concrete Composites

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“…La industria de la construcción genera gran impacto ambiental debido a la extracción de materiales (50% de toda la materia prima extraídas) y alto consumo energético (entre el 30-70% de la energía generada) (Cruz Juarez & Finnegan, 2021;Ige et al, 2021). Gran parte de este impacto se genera en la producción de cemento, siendo responsable del 7% del consumo de energía mundial (WBCSD, 2018) y aproximadamente entre 7 y 8% de las emisiones antropogénicas (Liang et al, 2023;Sousa & Bogas, 2021;Zajac et al, 2021), debido a que por cada tonelada de cemento producida se generan 0,63 toneladas de CO 2 (Santos et al, 2022); significando la liberación de aproximadamente 2,2 Gt de CO 2 al año (Galusnyak et al, 2022). En este contexto, la disminución del consumo de Clinker o cemento mediante el reemplazo parcial por materiales cementicios suplementarios -SCM (supplementary cementitious materials) ha sido considerada una de las alternativas viables para reducir el impacto ambiental generado por el cemento (Ayati et al, 2022;Ndahirwa et al, 2022;Shahas et al, 2022).…”

Section: Introductionunclassified

Influencia de la escoria de cobre como material cementicio suplementario en morteros

Urrego

Méndez

2023

reveia

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La demanda de cemento Portland (OPC) impacta de gran manera el medio ambiente, debido a la generación de gases de efecto invernadero y el consumo de materias primas no renovables durante su fabricación. Por tal razón, la búsqueda de materiales alternativos para disminuir el consumo de cemento es vital en la búsqueda de la sustentabilidad. Por esta razón, la escoria de cobre (EC) como materia cementicio suplementario (SCM) en la elaboración de morteros con menor contenido de OPC es una opción para generar un ambiente sostenible. Este estudio, investigo la influencia de la EC frente a la trabajabilidad, resistencia a la compresión y resistencia a la flexión a diferentes edades de curado. Morteros con 0%, 10%, 20%, 30%, 40% y 50% de EC como reemplazo parcial de OPC se elaboraron, donde se evidencio una mayor fluidez en los morteros con EC. Las propiedades mecánicas, se vieron afectas de manera monotónica en las primeras edades evaluadas (7, 28 y 90 días), donde los morteros con mayor contenido de EC presentaron la mayor perdida de resistencia. Sin embargo, a los 150 días de curado, la mezcla 10% EC presento una resistencia a la compresión de 43,6 MPa, 7,6% mayor que la mezcla de referencia.

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Modelling the effect of the cement components fineness on performance and environmental impact of composite cements

Cited by 12 publications

References 30 publications

Life Cycle Assessment of Mortars Produced Partially Replacing Cement by Treated Mining Residues

Life Cycle Assessment of Mortars Produced Partially Replacing Cement by Treated Mining Residues

Roles of carbonated recycled fines and aggregates in hydration, microstructure and mechanical properties of concrete: A critical review

Influencia de la escoria de cobre como material cementicio suplementario en morteros

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