- This special provision increases the minimum Class F fly ash replacement percentage to 25% for mix design Option 1 and disallows mix design Options 6, 7, and 8. Required for all projects using Item 514 ''Permanent Concrete Traffic Barrier'', beginning with the September 2009 letting.
Replaces SP514-001 . (Change Memo: de-32-09). Statewide Use.
- Air-entrained concrete will not be required in precast concrete traffic barrier, unless otherwise shown on the plans. Required on all projects with Item 514 beginning with the March 2006 letting.
Replaced by SP514-002 . (Change Memo: de-52-05). Statewide Use.