Carbon dioxide mineralization in recycled concrete aggregates can contribute immediately to carbon-neutrality

Rosa, Lorenzo; Becattini, Viola; Gabrielli, Paolo; Andreotti, Alessandro; Mazzotti, Marco

doi:10.1016/j.resconrec.2022.106436

Cited by 49 publications

(23 citation statements)

References 64 publications

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“…Finally, alternative CDR pathways have also started to be proposed, e.g. CO2 mineralisation or biochar in the cement industry [19][20][21] , with some being at demonstration or even commercialization stage 22,23 . However, their technical feasibility and regional/global scale-up potential are still scarcely assessed 24,25 .…”

Section: Broader Contextmentioning

confidence: 99%

A comparative analysis of the efficiency, timing, and permanence of CO₂ removal pathways

Chiquier

Patrizio

Bui

et al. 2022

Energy Environ. Sci.

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Section: Broader Contextmentioning

confidence: 99%

A comparative analysis of the efficiency, timing, and permanence of CO₂ removal pathways

Chiquier

Patrizio

Bui

et al. 2022

Energy Environ. Sci.

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“…These points make it difficult to use them, especially in cement-based materials [61,62]. Therefore, they are commonly destined for landfills, which in turn produces greenhouse gases [16,17].…”

Section: What Are the Main Characteristics Of The Carbon Steel Bars A...mentioning

confidence: 99%

“…Thus, they end up being sent directly to landfills, which seems to be the simplest alternative [1]. However, these landfills produce gases like methane (CH 4 ) that aggravate the greenhouse effect and contribute to increased global warming [16,17].…”

Section: Introductionmentioning

confidence: 99%

Bonding of Carbon Steel Bars in Concrete Produced with Recycled Aggregates: A Systematic Review of the Literature

Reis

Gomes

Azevedo

et al. 2022

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Civil construction is essential for the world economy and the largest generator of construction and demolition waste (CDW), mainly due to a lack of planning, technological control, and restoration execution, among other factors. While efforts are made to minimize this waste generation, one possible application for CDW is its incorporation into Portland cement-based materials as recycled aggregates, in partial or total replacement of natural aggregates. However, for CDW use to be feasible, the structure performance and safety must be assured, and the adherence between concrete and reinforcement bars, in this context, is a fundamental mechanism. With this perspective, this paper aims to investigate the influence of recycled aggregate on steel–concrete bonding. To this end, the SREE (Systematic Review for Engineering and Experiments) method was employed as a novelty, including a methodology quality analysis, to search and analyze relevant scientific articles published in the last ten years. The results revealed that the use of CDW as recycled aggregates in concrete worsens the steel–concrete bonding, and that ribbed steel bar seems to be the best option when employed in RC structures built with CDW-concrete, although the bar diameter and the anchorage length still need further investigations, and that CDW-concrete’s use can significantly contribute to reducing the emission of greenhouse gases and to capturing CO2 from the atmosphere. Therefore, further investigations should focus on the real influence of recycled aggregate type and replacement content, bar diameter, anchorage length, and CDW’s potential to capture CO2.

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“…Among the CO 2 emission sources, the cement industry contributes 7-8% of anthropogenic CO 2 emissions and 26% of the industrial carbon emissions globally [1,2]. The worldwide cementitious material partners with the global cement and concrete association (GCCA), the International Energy Agency (IEA) and the Cement Sustainability Initiative (CSI) have set out several road maps aiming to be carbon neutral by 2050 [3][4][5][6]. In Europe, the two main construction sectors release 10% of total European CO 2 emissions.…”

Section: Introductionmentioning

confidence: 99%

Air granulated basic Oxygen furnace (BOF) slag application as a binder: Effect on strength, volumetric stability, hydration study, and environmental risk

Ahmed

Santos

Brouwers

2023

Construction and Building Materials

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Carbon dioxide mineralization in recycled concrete aggregates can contribute immediately to carbon-neutrality

Cited by 49 publications

References 64 publications

A comparative analysis of the efficiency, timing, and permanence of CO₂ removal pathways

A comparative analysis of the efficiency, timing, and permanence of CO₂ removal pathways

Bonding of Carbon Steel Bars in Concrete Produced with Recycled Aggregates: A Systematic Review of the Literature

Air granulated basic Oxygen furnace (BOF) slag application as a binder: Effect on strength, volumetric stability, hydration study, and environmental risk

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Carbon dioxide mineralization in recycled concrete aggregates can contribute immediately to carbon-neutrality

Cited by 49 publications

References 64 publications

A comparative analysis of the efficiency, timing, and permanence of CO2 removal pathways

A comparative analysis of the efficiency, timing, and permanence of CO2 removal pathways

Bonding of Carbon Steel Bars in Concrete Produced with Recycled Aggregates: A Systematic Review of the Literature

Air granulated basic Oxygen furnace (BOF) slag application as a binder: Effect on strength, volumetric stability, hydration study, and environmental risk

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Product

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About

A comparative analysis of the efficiency, timing, and permanence of CO₂ removal pathways

A comparative analysis of the efficiency, timing, and permanence of CO₂ removal pathways