A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Special cements for ultra high performance concrete
High performance concrete mixtures usually are designed of ordinary portland cement OPC in combination with silica fume SF. Dense packing of the particles in combination with the pozzolanic reaction realise benefits in concrete like improved early and high strengths and a dense cement paste with high durability. Similar properties can be achieved by using OPC and microfine cements of the Mikrodur technology. In case of UHPC the very important dense packing has to be achieved by very coarse OPC and nanoscale SF at very low water/cement ratios, so that the binder components can't hydrate completely and even work as fillers. A better way might be a dense packing of reactive binder components like OPC, microfine cements and nanoscale synthetic silicas. Similar concrete properties in combination with easy handling can be achieved by these new binders, which fulfil the requirements of the German cement standards.
Special cements for ultra high performance concrete
High performance concrete mixtures usually are designed of ordinary portland cement OPC in combination with silica fume SF. Dense packing of the particles in combination with the pozzolanic reaction realise benefits in concrete like improved early and high strengths and a dense cement paste with high durability. Similar properties can be achieved by using OPC and microfine cements of the Mikrodur technology. In case of UHPC the very important dense packing has to be achieved by very coarse OPC and nanoscale SF at very low water/cement ratios, so that the binder components can't hydrate completely and even work as fillers. A better way might be a dense packing of reactive binder components like OPC, microfine cements and nanoscale synthetic silicas. Similar concrete properties in combination with easy handling can be achieved by these new binders, which fulfil the requirements of the German cement standards.
Special cements for ultra high performance concrete
Spezialzemente für Ultrahochleistungsbeton
Strunge, Josef (author) / Deuse, Thomas (author)
2008
8 Seiten, 14 Bilder, 4 Tabellen, 8 Quellen
Conference paper
English
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