• THAT’S A FACT
    If America’s 47,744 miles of interstate highways were paved with concrete, 10,989,557 gallons of fuel would be saved each day.
  • EAR TO THE GROUND
    Service Life Engineering has become its own powerful field of study with immense impact on the future.
  • THAT’S A FACT
    Concrete is a light color, which reflects from 33 to 50 per cent more light than asphalt, and can even lower the average town temperature by six degrees.
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Louisville Southern Indiana Ohio River Bridges Project East End Bridge – Concrete and Reinforcing Steel Durability Report

New Cable Stayed Bridge for States of Kentucky and Indiana

Provide a durability assessment to meet a 100-year durability design requirement for the new Cable Stayed Highway Bridge. The assessment included analysis of the concrete and reinforcing steel systems. The 100-year service life requires the main towers and concrete deck portions of the bridge superstructure, to be without structural concrete spalling to the key elements identified as critical for the ongoing operation of the bridge.

TCG provided laboratory testing to characterize concrete properties from a local producer and provided service life analysis and modeling for the concrete and reinforcing steel materials to be specified for the bridge construction. Key elements of TCG services included the following:

Concrete Laboratory Testing

  • Produced several trial concrete mixtures
  • Tested for durability and concrete ion transport properties

Service Life Consulting Assessment

  • Assessed the environmental exposure conditions based on interviews and salt usage data from Indiana and Kentucky
  • Assessed corrosion resistant reinforcing steel (CRRS) alternatives and cost
  • Modeled concrete service life performance with STADIUM® software simulations
  • Evaluated the anticipated chloride levels and freshwater river degradation in the concrete over the design life.
  • Summarized Service life modeling results to provide the owner with key alternatives for the different bridge components, based upon their exposure conditions and structural importance
  • Summarized recommendations for quality control and materials specifications