Vol 2 - Garney Construction

c. Working Time: 30 minutes at 70 degrees F.d. Application Temperature Range: 45 degrees F to 90 degrees F.B. Repair Mortar System Nos. 1, 2, 3, or 5:1. Remove standing and free water from prepared area.2. Apply bond scrub coat of mortar to prepared surface in accordance withmanufacturer’s instructions. Do not apply more scrub coat of mortarthan can be covered with repair mortar before scrub coat begins drying.3. Immediately place mixed repair mortar into prepared area from one sideto the other side.4. Work material firmly into bottom and sides of patch to ensure a goodcontinuous bond.5. Level repair mortar and screed to elevation of existing concrete.6. Finish to same texture as existing concrete around patch.7. Repair Mortar System No. 5 screed or use self-leveling mixture toobtain a uniform and plane surface.C. Repair Mortar System No. 4:1. Remove free water from prepared area.2. Apply bonding agent to prepared surface in accordance withmanufacturer’s instructions. Do not apply more bonding agent than canbe covered with mortar before bonding agent cures, past tacky to thetouch.3. Immediately place mixed repair mortar into prepared area from one sideto the other side.4. Work material firmly into bottom and sides of patch to ensure a goodcontinuous bond.5. Level repair mortar and screed to elevation of existing concrete.6. Finish to same texture as existing concrete around patch.D. Joint Repair:3.06 CURING1. Remove joint spacer when repair mortar is hard enough that a pointedtrowel will penetrate surface less than 1/2 inch.2. When repair mortar is cured and ready for use, fill joint in accordancewith repair mortar system manufacturer’s instructions.A. Repair Mortar System No. 1:1. No curing is required.2. Protect from rain immediately after placing.PW/WBG/382059REPAIR OF HORIZONTALAUGUST 15, 2012CONCRETE SURFACES©COPYRIGHT 2012 CH2M HILL 03 01 33 - 13