This project consists of a 5 lanes, 760 meters long curved bridge over the Wouri river.
65 000 m³ of concrete are used.
CHRYSO®Optima 145 and CHRYSO®Tard CHR used to deliver a flowable concrete, easily pumpable with a long workability retention despite temperatures up to 40°C.
- CHRYSO®Optima 145
- CHRYSO®Tard CHR
Project technical challenges
Underwater casting of piles (C 40/50) at a depth of 60 meters with a workability retention of 8 hours in tropical temperatures.
Casting of the large prestressed deck segments (C50/60) with 2 hours workability retention.
Constructor: Sogea Satom, Soletanche Bachy (VINCI Construction)
Construction of a five-level freeway interchange to replace former interchange which has been modified for freeway speeds.