SPALLS AT PREMOLDED EXTERIOR JOINTS

1. Cut out spall too minimum depth of 3/4", 1" if possible.

2. Remove premolded filler and concrete laitance to approx. 1 to 1 1/2" depth.

Form a barrier by applying tape or sand to separate filler from MM-80

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3.Mix MM-80 then add 2 1/2" parts silica sand. Install flush.