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Durability of high performance concrete in magnesium brine
The durability of six concretes exposed to magnesium brine was monitored for 24 months. These concretes incorporated ground granulated blast furnace slag, silica fume, and fly ash. The Young's moduli, chloride penetrations, and median pore diameters were measured. The combination of hydration of the cement phases with ingress of the aggressive ions in concrete exposed to brine leads to the development of a cyclic nature for the Young's moduli, chloride penetrations, and microstructural descriptors. A long initial cure in conjunction with blended cement concretes incorporating mineral admixtures provides the best protection from brine. All systems exhibited degradation in the presence of the brines. However, System E (32 % Type 10 cement, 65 % slag and 3 % silica fume) with 28 days hydration had the lowest overall rate of degradation and the best overall durability to brine.
Durability of high performance concrete in magnesium brine
The durability of six concretes exposed to magnesium brine was monitored for 24 months. These concretes incorporated ground granulated blast furnace slag, silica fume, and fly ash. The Young's moduli, chloride penetrations, and median pore diameters were measured. The combination of hydration of the cement phases with ingress of the aggressive ions in concrete exposed to brine leads to the development of a cyclic nature for the Young's moduli, chloride penetrations, and microstructural descriptors. A long initial cure in conjunction with blended cement concretes incorporating mineral admixtures provides the best protection from brine. All systems exhibited degradation in the presence of the brines. However, System E (32 % Type 10 cement, 65 % slag and 3 % silica fume) with 28 days hydration had the lowest overall rate of degradation and the best overall durability to brine.
Durability of high performance concrete in magnesium brine
Beständigkeit von Hochleistungsbeton in magnesiumhaltiger Lösung
Tumidajski, P.J. (author) / Chan, G.W. (author)
Cement and Concrete Research ; 26 ; 557-565
1996
9 Seiten, 16 Bilder, 4 Tabellen, 12 Quellen
Article (Journal)
English
Beton , chemische Beständigkeit , Hydratisieren , Young-Modul , Chlorid , Mikrostruktur , Zusatzstoff , Kieselsäure , Korrosion , Magnesium , Schlacke , Flugasche , Meerwasser , Korrosionsschutz
Durability of High Performance Concrete in Magnesium Brine
| British Library Online Contents | 1996
Durability of High Performance Concrete in Magnesium Brine
| Online Contents | 1996
Durability of High-Performance Concrete
| British Library Conference Proceedings | 1995
Durability of High Performance Concrete
| British Library Conference Proceedings | 1996
Durability of High Performance Concrete
Springer Verlag | 1995