Jerzy Zemajtis, CTLGroup For long-span bridges, predictions of long-term deflections and prestress losses are important design considerations. The accuracy of these predictions can be improved when measured values of modulus of elasticity, creep, and shrinkage of the concrete to be
ATLANTA’S FIFTH RUNWAY BRIDGES
John A. Heath, Heath & Lineback Engineers, Inc. Hartsfield-Jackson Atlanta International Airport is in the midst of a major upgrade and facilities enhancement. The work includes a new parallel runway designed to accommodate the largest airplanes in service, design, or
LOUSIANA’S HPC DEVELOPMENT
Paul B. Fossier, Louisiana Department of Transportation and Development and Harold R. Paul, LouisianaTransportation Research Center Louisiana’s interest in high strength concrete (HSC) and high performance concrete (HPC) was initiated in the mid-1970s by the Louisiana Department of Transportation and