MIDWEST CONCRETE CONSORTIUM MEETING

1
MIDWEST CONCRETE CONSORTIUM MEETING

• FALL 2005 MEETING
• OCTOBER 26 27
• URBAN RECONSTRUCTION

2
Urban Reconstruction

• Contractor Incentives/Disincentives
• Traffic Control Plan is given in the contract.
  Contractor may change order approved
  modifications.
• Quickchange moveable barrier systems vs. standard
  barrier sections.

3
Materials Issues

• Air Void Analyzer Update
• Image Analysis

4
Spacing FactorsAVA vs. ASTM C-457
5
F/T Durability vs AVA Spacing Factor
6
AVA vs ASTM C-457 Correlation

• Spacing Factor Limit for ASTM C-457 (x) 0.008
  inches.
• Spacing Factor Limit for AVA (y) 0.015 in.
• AVA Correlation Equation
• Y 1.4715x 0.0035 (R2 .9271)
• X (0.015 0.0035)/1.4715 .0078

7
Image Analysis Update

• Delayed mostly due to MoDOT reorganization.
• There are a few issues to work out with
  Honeywell, but no time spent on wrapping the
  project up.