Projektbeschreibung
Mit neuartigen Geopolymeren „grün“ bauen
Zement ist das Bindemittel für Beton, das weltweit am häufigsten verwendete Baumaterial. Er ist jedoch für etwa 6 % der weltweiten Kohlendioxidemissionen verantwortlich. Nun werden neue Strategien für das Kohlendioxidmanagement erforscht, etwa die Synthese von Geopolymeren durch die Polykondensationsreaktion von Geopolymervorläufern und Alkalipolysilikaten. Diese Materialien werden aus natürlichen Stoffen oder aus industriellen Nebenprodukten gewonnen und stellen eine nachhaltigere Alternative dar. Mithilfe des im Rahmen der Marie-Skłodowska-Curie-Maßnahmen unterstützten Projekts PRIGeoC werden umweltfreundliche Betone entwickelt, indem innovative geopolymere Materialien als alternative Bindemittel zusammen mit Recyclingbeton als Zuschlagstoff verwendet werden. Innerhalb des Projekts werden die mechanischen Eigenschaften und die Leistung von Geopolymerbeton in verschiedenen Umgebungen erforscht, um die Mischverfahren zu verbessern und die Betonherstellung zu revolutionieren.
Ziel
Concrete, owing to its availability, easy preparation and fabrication, is the most popular construction material. However, the cement industry is facing unprecedented challenges caused by energy resources and CO2 emissions. Despite the incremental improvements in process efficiency adopted by the cement industry in recent years, OPC production is still responsible for around 6% of all man-made global carbon emissions. The proposed project aims to develop green concretes by using novel geopolymer materials as new binder and recycled concrete as part of the aggregates. The geopolymer is a type of amorphous alumina-silicate products. It can be synthesized by poly-condensation reaction of geopolymetric precursor and alkali polysilicates, which are available in natural materials or from industrial by-products. Geopolymer materials represent an innovative technology that is generating considerable interest in the construction industry, particularly in light of the ongoing emphasis on sustainability. However, although numerous geopolymer systems have been proposed, most are difficult to work with and require great care in their mixing process. Furthermore, the lack of long-term performance and durability data is also a barrier to the acceptance and widespread commercial use of geopolymer concretes in the construction industry. The proposed research will cover not only the finding of novel geopolymers but also provide long-term performance and durability data for geopolymer concretes used in different environments. The research outcome will have a great impact on our understanding of how geopolymer concretes perform in different environments and how their mechanical properties and performance can be improved by using correct mixing processes. The research will also provide vital information on how to revolutionise the production of concrete materials and how to engineer concrete binders using different geopolymers to tailor the properties of the resulting concrete.
Wissenschaftliches Gebiet
Schlüsselbegriffe
Programm/Programme
Aufforderung zur Vorschlagseinreichung
Andere Projekte für diesen Aufruf anzeigenKoordinator
PL4 8AA Plymouth
Vereinigtes Königreich