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I <br /> I1 • Calculations for Type 2E WorkingDrawings <br /> 9 <br /> 2 <br /> I 3 Material manufacturer's instructions and recommendations shall supersede any <br /> 4 conflicting requirements in pre-approved repair procedures. <br /> 5 <br /> I <br /> 6 <br /> 7 The Engineer shall be notified prior to performing any repair procedure and shall be <br /> given an opportunity to inspect the repair work being performed. <br /> 8 <br /> I9 6-01.16(2) Pre-Approved Repair Procedures <br /> 10 6-01.16(2)A Concrete Spalls and Poor Consolidation (Rock Pockets, <br /> 11 Honeycombs, Voids, etc.) <br /> 12 This repair shall be limited to the following areas: <br /> I 13 <br /> 14 • Areas that are not on top Roadway surfaces (with or without an overlay) <br /> 15 including but not limited to concrete bridge decks, bridge approach slabs <br /> I 16 or cement concrete pavement <br /> 17 <br /> 18 • Areas that are not underwater <br /> I <br /> 29 <br /> 20 • Areas that are not on precast barrier, except for the bottom 4 inches (but <br /> 21 not to exceed 1 inch above blockouts) <br /> 22 <br /> I <br /> 23 <br /> 24 • Areas that do not affect structural adequacy as determined by the <br /> Engineer. <br /> 25 <br /> I <br /> 26 <br /> 27 The repair procedure is as follows: <br /> 28 1. Remove all loose and unsound concrete. Impact breakers shall not <br /> I29 exceed 15 pounds in weight when removing concrete adjacent to <br /> 30 reinforcement or other embedments and shall not exceed 30 pounds in <br /> 31 weight otherwise. Operate impact breakers at angles less than 45 <br /> 32 degrees as measured from the surface of the concrete to the tool and <br /> I <br /> 33 <br /> 34 moving away from the edge of the defective Work. Concrete shall be <br /> completely removed from exposed surfaces of existing steel reinforcing <br /> 35 _ bars. If half or more of the circumference of any steel reinforcing bar is <br /> I <br /> 36 <br /> 37 exposed, if the reinforcing bar is loose or if the bond to existing concrete <br /> is poor then concrete shall be removed at least 3/4 inch behind the <br /> 38 reinforcing bar. Do not damage any existing reinforcement. Stop work <br /> 39 and allow the Engineer to inspect the repair area after removing all loose <br /> I40 and unsound concrete. Submit a modified repair procedure when <br /> 41 required by the Engineer. <br /> 42 <br /> I <br /> 43 <br /> 44 2. Square the edges of the repair area by cutting an edge perpendicular to <br /> the concrete surface around the repair area. The geometry of the repair <br /> 45 perimeter shall minimize the edge length and shall be rectangular with <br /> I <br /> 46 <br /> 47 perpendicular edges, avoiding reentrant corners. The depth of the cut <br /> shall be a minimum of 3/4 inch, but shall be reduced if necessary to avoid <br /> 48 damaging any reinforcement. For repairs on vertical surfaces, the top <br /> I49 edge shall slope up toward the front at a 1-vertical-to-3-horizontal slope. <br /> 50 <br /> I City of EverettPage AM 33 Amendments <br /> Everett Station 80 Stall Parking Expansion June 2019 <br />