Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONVERSION OF MINE WASTE MATERIALS INTO SUPPLEMENTARY CEMENTITIOUS MATERIALS
This invention repurposes mining waste/gangue materials to produce valuable supplementary cementitious materials, such as pozzolans for concrete applications. A process for producing a supplementary cementitious material from a mine waste material, comprises: obtaining a mine waste material; crushing the mine waste material; milling the crushed mine waste material to enhance pozzolanicity via mechanical activation; optionally, calcining or sintering the crushed mine waste material to generate a calcined/sintered mine waste material that is thermally activated to enhance pozzolanicity; optionally, milling the calcined/sintered mine waste material; and recovering a supplementary cementitious material, which may contain a separate pozzolan added at some point in the process. Experimental results demonstrate the disclosed technology for upcycling mining waste materials in the form of overburden, reject materials, and production byproducts, into supplementary cementitious materials. This discovery provides significant benefits to concrete performance and durability, while also substantially lowering the carbon footprint of the concrete.
CONVERSION OF MINE WASTE MATERIALS INTO SUPPLEMENTARY CEMENTITIOUS MATERIALS
This invention repurposes mining waste/gangue materials to produce valuable supplementary cementitious materials, such as pozzolans for concrete applications. A process for producing a supplementary cementitious material from a mine waste material, comprises: obtaining a mine waste material; crushing the mine waste material; milling the crushed mine waste material to enhance pozzolanicity via mechanical activation; optionally, calcining or sintering the crushed mine waste material to generate a calcined/sintered mine waste material that is thermally activated to enhance pozzolanicity; optionally, milling the calcined/sintered mine waste material; and recovering a supplementary cementitious material, which may contain a separate pozzolan added at some point in the process. Experimental results demonstrate the disclosed technology for upcycling mining waste materials in the form of overburden, reject materials, and production byproducts, into supplementary cementitious materials. This discovery provides significant benefits to concrete performance and durability, while also substantially lowering the carbon footprint of the concrete.
CONVERSION OF MINE WASTE MATERIALS INTO SUPPLEMENTARY CEMENTITIOUS MATERIALS
THOMAS JOSEPH EARL (Autor:in) / WHIDDEN JEFFREY ALEXANDER (Autor:in)
01.08.2024
Patent
Elektronische Ressource
Englisch
Supplementary cementitious materials
| Elsevier | 2010
Supplementary cementitious materials
| British Library Online Contents | 2011
Supplementary cementitious materials
| Online Contents | 2011
Supplementary cementitious materials
| Online Contents | 2011
Supplementary cementitious materials
| British Library Online Contents | 2011