The Guide Specifications in this catalog may be used as models for either office master specifications or specifications for particular projects. In either case, the Guide Specifications must be edited to fit the conditions of use. Material is included that will not be suitable for every purpose and should be deleted as necessary; other material will have to be added for specific projects. Blanks have been provided where appropriate requirements should be added.

Structural Precast Concrete

(Section 03412)

3.01 PREPARATION

1. PREPARATORY WORK:
1. Place anchor bolts, plates, and dowels accurately to receive panels.

3.02  INSTALLATION

1. PANEL ERECTION:
1. Erect panels within specified erection tolerances and without cumulative dimensional error.
2. Stabilize panels securely during erection.
3. Anchor panels securely and permanently as indicated on approved shop drawings.
4. Remove any temporary bracework upon completion.
2. MAXIMUM ERECTION TOLERANCES:
1. Erect panels within the following dimensional tolerances:
1. joint widths: ±1/4 inch
2. adjacent panel alignment: ±1/4 inch
3. WELDING:
1. Comply with AWS D1.1.

3.03 GROUTING

1. SILL JOINTS:
   1. Saturate concrete contact surfaces prior to grouting. Remove excess water.
   2. Compact grout thoroughly to eliminate air pockets. Do not vibrate.
   3. Cure with moisture for at least 24 hours.
   4. Do not retemper grout once set.

3.04 CAULKING

1. PROTECTION:
1. Mask surfaces adjacent to joints as required for complete protection.
2. SEALANT INSTALLATION:
1. Mix and apply in accordance with the manufacturer’s directions.
3. CLEANING:
1. Remove material as work progresses and leave surfaces neat, smooth, and clean.

3.05 PATCHING

1. CONCRETE PATCHING:
1. Concrete patching will be acceptable providing structural adequacy and appearance are not impaired.

3.06 PAINTING

⇒ Section 03412 part 2 | part 3