Vasco de Gama bridge, Lisbon

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Vasco de Gama bridge, Lisbon
Country: Portugal
Date of realisation: 1995
CHRYSO®Plast CER & CHRYSO®Fluid GT
Project
Concrete formulation
• Details of the project
• Total volume of concrete
The Vasco de Gama bridge is part of a construction programme
of a huge set of structures on the Tagus river for the realisation
of a 12.3 km unbroken link between Lisbon and the left bank of
the Tagus river, for the Universal Exposition in 1998.
With a 30.9 km large deck, being 17,185 m long and with a span
of 420 m, this multiple cable stayed bridge is the star work of art
of the Exposition.
The originality of this construction consists in the way of
proportioning superstructures and substructures able to resist
efforts four times more important than the ones usually obtained
for ground construction in seismic areas.
670,000 m3
• Specifications
Type B40, B45 and B50 concrete
Concrete pumped over 500 metres
Sea setting type cement
Rheology maintained between 3 to 5 hours
Constraint of durability (concrete shelf life): at least 120 years
• Concrete elements
Realisation of the viaduct pylons, which are 155 metres high.
Admixtures used
• CHRYSO®Plast CER
• CHRYSO®Fluid GT
Results
Optimum reduction of the W/C ratio
Realisation of a very low porosity concrete
Project participants
• Project manager: "Novaponte"
group of 8 companies managed by Campenon Bernard SGE