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Zero-Emission Circular Concrete Update 2024

Heidelberger, Martin [Hrsg.] 1
1 Stab und Strategie (STS), Karlsruher Institut für Technologie (KIT)

Abstract:

The project Zero Emission Circular Concrete develops a CO2-neutral, high-quality, and resource-efficient concrete cycle starting with end-of-life concrete. A cement clinker with a reduced CO2 footprint is processed from waste concrete fines at a strongly reduced temperature of approximately 1000°C. The main clinker mineral is belite, Ca2SiO4. The residual CO2 is released in concentrated form and used for the technical carbonation of either waste concrete fines as supplementary cementitious material or of coarse crushed waste concrete. The coarse fraction is treated in a new process based on a pressurized autoclave, where hardening by carbonation improves the properties of the recycled aggregate. Both carbonation options are investigated on a laboratory scale.


Zugehörige Institution(en) am KIT Stab und Strategie (STS)
Publikationstyp Audio & Video
Publikationsdatum 02.05.2024
Erstellungsdatum 02.05.2024
Sprache Englisch
DOI 10.5445/IR/1000170393
Identifikator KITopen-ID: 1000170393
Lizenz Creative Commons Namensnennung – Nicht kommerziell – Weitergabe unter gleichen Bedingungen 4.0 International
Bemerkung zur Veröffentlichung Update 2024
Schlagwörter Zero-Emission Circular Concrete
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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