Carbon Dioxide Absorption by Blast-Furnace Slag Mortars in Function of the Curing Intensity

Miguel Ángel Sanjuán, Esteban Estévez and Cristina Argiz
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Miguel Ángel Sanjuán: Department of Science and Technology of Building Materials, Civil Engineering School, Technical University of Madrid (UPM), 28040 Madrid, Spain
Esteban Estévez: Department of Cement Chemical Testing, LOEMCO. Technical University of Madrid (UPM), Avda. Eric Kandel 0001, LOEMCO Building. South Technological Area “Acedinos”, GETAFE, 28906 Madrid, Spain
Cristina Argiz: Department of Science and Technology of Building Materials, Civil Engineering School, Technical University of Madrid (UPM), 28040 Madrid, Spain

Energies, 2019, vol. 12, issue 12, 1-9

Abstract: Climate change is one of the most important issues affecting the future of the planet. Then, a lot of resources are being used to actively work on climate change issues and greenhouse gas reduction. Greenhouse gas (GHG) emissions are monitored by each country and reported yearly to the United Nations Framework Convention on Climate Change (UNFCCC). The Intergovernmental Panel on Climate Change (IPCC) published the document entitled “2006 IPCC Guidelines for National Greenhouse Gas Inventories” to provide the calculation rules and the way to inform the UNFCCC of the national GHG emissions. Currently, this document does not give a procedure to calculate the net carbon dioxide emissions to the atmosphere due to the Portland cement clinker production. The purpose of this paper is to get reliable relationships to better calculate the CO 2 uptake by ground granulated blast-furnace slag (GGBFS) mortars. The application of this material cured under controlled conditions could help minimize environmental impact. Carbonation coefficient versus 28-day compressive strength relationship of mortars elaborated with GGBFS and cured underwater for 0, 1, 3, 7, 14, or 28 days were obtained. The main finding is the extreme sensitivity of the GGBFS mortars to the curing intensity and, therefore, they can be used cured under controlled conditions to minimize carbon footprints.

Keywords: CO 2 sequestration; mineral carbonation; diffusion; porous materials; curing; blast-furnace slag (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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