CO2 Mineralization Methods in Cement and Concrete Industry

Zając, Maciej; Skoček, Jan; Haha, Mohsen Ben; Deja, Jan

doi:10.3390/en15103597

Cited by 40 publications

(14 citation statements)

References 200 publications

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“…The results of the literature review made it possible to warn [25] and raise awareness among policy and decision-makers about the correlation between the SDGs [20] and the urgency of curbing global warming [4], giving priority to the reduction of CO 2 emissions through renewable energies [8], circular economy [57], and optimization of agricultural areas [45]. Along these lines, the research narrowed the second knowledge gap [20,23].…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

“…According to other research [4,25], this indicator would be the most important to SDG13 since CO 2 emissions are responsible for global warming [4] and the climate crisis. Therefore, SDG13.2.2 should be the priority of policy and decision-makers, such as renewable energies [8], circular economy [57], and optimization of agricultural areas [45]. Figure 9 shows the information on the SDG13.2.2 indicator in 2020.…”

Section: Collection Of Official Data For Sdg13mentioning

confidence: 99%

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Algorithm Applied to SDG13: A Case Study of Ibero-American Countries

2023

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Scientific studies confirm the existence of a crisis caused by climate change, in which global causes produce local effects. Despite climate agreements, greenhouse gas emissions continue to fall short of targets to limit global warming. There is still a need for comparable data for Sustainable Development Goal (SDG) 13—Climate Action. The motivation of the research is to provide data for decision-making and to propose solutions to address the climate crisis. The article aims to propose a Fuzzy Logic algorithm to evaluate the SDG13 indicators and to deepen the discussion on climate change. The research is applied explanatory with a combined approach (quantitative-qualitative) through modeling, simulation, and case studies. As a result, the OWA operator ranks 10 Ibero-American countries to SDG13, indicating Colombia, Peru, and Cuba in the first positions. The main contributions are the reduction of identified knowledge gaps and proposals for action for policy and decision-makers. A limitation of this study would be the number of participating countries. The authors indicate future lines of research.

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Section: Discussion Of the Resultsmentioning

confidence: 99%

Section: Collection Of Official Data For Sdg13mentioning

confidence: 99%

Algorithm Applied to SDG13: A Case Study of Ibero-American Countries

2023

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“…Being intrinsically a process that occurs over time, the curing stage is of crucial importance to the competitiveness of this industry [49]. Thus, its implementation promotes product turn-over, leading to improvements in process efficiency and productivity [17,50].…”

Section: Carbonation Curing Of Cementitious Materialsmentioning

confidence: 99%

Strategies for OPC Paste Carbonation: Relationship between Microstructure, Performance and Net CO2 Balance

Silva,

Nogueira,

Bogas

2023

Sustainability

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Carbon capture storage and utilization is the main technology for reducing CO2 emissions, accounting for 56% of the overall reduction required to achieve the carbon neutrality of concrete by 2050. Different strategies have been explored in cement-based materials towards this end, namely, in concrete. However, the impact on carbonated concrete differs depending on the moment at which cementitious material comes into contact with CO2, either in terms of CO2 uptake or in terms of its lifetime performance. This paper presents three leading strategies that rely on the direct carbonation of a cementitious binder to reduce the carbon footprint. For each strategy, the effect of the carbonation process on the kinetics and microstructure of cementitious paste, the estimation of its carbon capture capability and the application feasibility are discussed. Accelerated carbonation curing is one approach widely studied by academics. However, despite some CO2 capture effectiveness, its industrial processing is still a long way off. A second strategy consists of incorporating CO2 during the mixing process, which has been shown to speed up the hardening reactions of cement. However, this effect is of short term and may negatively affect its long-term performance. Finally, the carbonation of hydrated cement waste is shown to be a very promising strategy that enables the recycling of hydrated cement waste as a supplementary cementitious material which also has a potentially high CO2 uptake. The integrated analysis of the three strategies highlights a wide variability in the reduction of CO2 emissions from 1% to 37% in relation to current emissions, where the best result was achieved using carbonated waste (third strategy) in the production of a concrete subjected to carbonation curing (first strategy).

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“…Concrete is a major structural component of buildings and one of the most extensively used core materials [ 1 , 2 , 3 , 4 , 5 ]. The demand for concrete is expected to increase further owing to the increasing demand for social infrastructure and housing, continuous urbanization, and social development in developing countries [ 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Concrete Slurry Waste Ratio on Supercritical CO2 Sequestration

Sim

Ryu

2023

Materials

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To prevent drastic climate changes due to global warming, it is necessary to transition to a carbon-neutral society by reducing greenhouse gas emissions in all industrial sectors. This study aimed to develop carbon utilization sequestration technology that uses the concrete slurry water generated during the production of concrete as a new CO2 sink to reduce CO2 emissions from the cement industry. This was achieved by performing supercritical CO2 carbonation by varying the concrete slurry waste (CSW) ratio. The study’s results confirmed that, according to the CSW ratio (5 to 25%), complete carbonation occurred within only 10 min of the reaction at 40 °C and 100 bar.

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CO2 Mineralization Methods in Cement and Concrete Industry

Cited by 40 publications

References 200 publications

Algorithm Applied to SDG13: A Case Study of Ibero-American Countries

Algorithm Applied to SDG13: A Case Study of Ibero-American Countries

Strategies for OPC Paste Carbonation: Relationship between Microstructure, Performance and Net CO2 Balance

Effect of the Concrete Slurry Waste Ratio on Supercritical CO2 Sequestration

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