A concrete slab contraction joint features a one-eighth-inch sawcut filled with joint filler and sealant. The sawcut depth is specified as one-fourth or one-third of the total slab depth D, with an alternative Dramix reinforcement option. Joint spacing is determined per the project specifications. The concrete slab rests on a prepared granular subbase.
1/8" SAWCUT, PROVIDE JOINT FILLER AND SEALANT, SEE SPECS FOR SPACING A CONTRACTION JOINT DRAMIX OPTION D/4 OR D/3 FOR D
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