Samenvatting
This paper presents the first two bridges using air-entrained high-performance concrete (HPC) built by the Ministere des Transports du Quebec. These experimental bridges were designed by the structural department using a 60 MPa 28-day characteristic compressive strength concrete. These bridges were extensively instrumented to follow HPC behaviour in time. The paper reports on the advantages of using HPC for durability and structural improvements. The construction of these two experimental HPC bridges has shown that it is possible to produce a consistant air-entrained high-performance concrete to build efficient structural and economic bridges. Monitoring these bridges over time should demonstrate the improved durability. (A)