1040. 1 1040. 3(b)
1040.1DESCRIPTION —This work is removing and patching unsound bridge deck concrete as indicated
and directed . Unsound concrete is defined as existing bridge deck concrete that is deteriorated, spalled, or determined by the Representative to be unsound. This work applies to approach slabs and barrier when indicated or directed . Concrete Bridge Deck Repair is classified into three types as follows:
bars without exposing the top mat. Type 1 repairs are only performed when a latex overlay is indicated.
extends no de eper than the bottom mat without exposing the bottom mat.
the full depth of the deck is unsound . This includes deck overhang areas; and areas where curb, barrier, or deck ends need to be patched as part of the repair. Type 3 repairs over adjacent box beams extend to the top of the beam.
1040.2MATERIAL —
• Class AAAP Cement Concrete . Section 704, except use No. 8 coarse aggregate.
• Class AA Cement Concrete . Section 704, except use No. 8 coarse aggregate. For use i n barrier repairs only.
• Latex Modified Concrete (LMC) . Section 1042.2(f)
• Accelerated Structural Concrete (ASC) . Section 704, except use No. 8 Coarse Aggregate. Do not use ASC unless indicated or directed.
• Bag Mix . When the quantity of concrete is smaller than the minimum delivery requirement from a mix supplier, a Bulletin 15 approved bag mix with No. 8 coarse aggregate may be used. Submit the bag mix data sheets for review and do not use until accepted.
• Concrete Bonding Compound . Type II, Grade 2, ASTM C 881 epoxy as specified in Section 706
• Wearing Surface Material for Patching . Section 1042.2
1040.3CONSTRUCTION —As shown on the Standard Drawings and as follows:
drops spaced every 6 inches for Department use. Sound the entire bridge deck with the chain drag in the presence of the Representative . When scarification and a latex overlay are indicated without hydrodemolition, sound the entire deck after scarification in the presence of the Representative. The Representative will delineate the repair areas.
1040. 3(b) 1040. 3(f)