Environmental Assessment of Carbon Concrete Based on Life-Cycle Wide Climate, Material, Energy and Water Footprints

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dc.date.accessioned2022-08-08T13:07:29Z
dc.date.available2022-08-08T13:07:29Z
dc.date.issued2022-07-12
dc.description.sponsorshipGefördert durch den Publikationsfonds der Universität Kassel
dc.identifierdoi:10.17170/kobra-202208086589
dc.identifier.urihttp://hdl.handle.net/123456789/14035
dc.language.isoeng
dc.relation.doidoi:10.3390/ma15144855
dc.rightsNamensnennung 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectconcreteeng
dc.subjectcarbon fiberseng
dc.subjectrebar steeleng
dc.subjectlightweight constructionseng
dc.subjectresource footprintseng
dc.subjectlife cycle assessmenteng
dc.subject.ddc620
dc.subject.swdÖkologischer Fußabdruckger
dc.subject.swdBauwirtschaftger
dc.subject.swdNachhaltigkeitger
dc.subject.swdStahlbetonbauger
dc.subject.swdCarbonbetonger
dc.subject.swdBaustoffger
dc.subject.swdKohlenstofffaserger
dc.subject.swdUmweltbilanzger
dc.subject.swdDIN-EN-ISO-Normger
dc.subject.swdKostensenkungger
dc.titleEnvironmental Assessment of Carbon Concrete Based on Life-Cycle Wide Climate, Material, Energy and Water Footprintseng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractThe construction industry contributes a major share to global warming and resource consumption. Steel-reinforced concrete (SC) is the world’s most important building material, with over 100 million cubic meters used per year in Germany. In order to achieve a resource-efficient and climate-friendly construction sector, innovative technologies and the substitution of materials are required. Carbon concrete (CC) is a composite material made of concrete and a reinforcement of carbon fibers. Due to the non-rusting and high-strength carbon reinforcement, a much longer life-time can be expected than with today’s designs. In addition, the tensile strength of carbon fibers is about six times higher than that of steel, so CC can be designed with a relatively lower concrete content, thus saving cement and aggregates. This research analyzes and compares SC with CC over its entire life-cycle with regard to its climate, material, energy, and water footprints. The assessment is done on material and building level. The results show that the production phase contributes majorly to the environmental impacts. The reinforcements made from rebar steel or carbon fibers make a significant contribution, in particular to the climate, energy, and water footprint. The material footprint is mainly determined by cement and aggregates production. The comparison on the building level, using a pedestrian bridge as an example, shows that the footprints of the CC bridge are lower compared to the SC bridge. The highest saving of 64% is in the material footprint. The water footprint is reduced by 46% and the energy and climate footprint by 26 to 27%. The production of carbon fibers makes a significant contribution of 37% to the climate footprint.eng
dcterms.accessRightsopen access
dcterms.creatorMostert, Clemens
dcterms.creatorBock, Jannik
dcterms.creatorSameer, Husam
dcterms.creatorBringezu, Stefan
dcterms.source.articlenumber4855
dcterms.source.identifiereissn:1996-1944
dcterms.source.issueIssue 14
dcterms.source.journalMaterialseng
dcterms.source.pageinfo
dcterms.source.volumeVolume 15
kup.iskupfalse

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