2004 English Special Provisions to Item 424 - Precast Concrete Structures (Fabrication) (All)

SP424-003  PDF  RTF   - Clarifies reference to external forms section. Replaces SP424-002 . (Change Memo: de-05-13). Statewide Use.
SP424-002  PDF  RTF   - This special provision modifies the use of mix design Option 1 and disallows the use of mix design Options 6, 7, and 8, for all precast concrete members. Required for all projects using Item 424 Replaces SP424-001 .Replaced by SP424-003 . (Change Memo: de-33-09). Statewide Use.
SP424-001  PDF  RTF   - ASR (alkali-silica reactive) aggregate detected in girders manufactured, despite existing specification requirement compliance. SP increases the min. Class F fly ash replacement percentage for Option 1 and removes Options 6, 7 and 8 for some members. Required on all projects with Item 424 beginning with the June 2008 letting. Replaced by SP424-002 . (Change Memo: de-17-08). Statewide Use.

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