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 03410)

PART 3 ­ EXECUTION

⇒ part 1 | part 2

3.01 INSPECTION

  1. VERIFICATION OF EXISTING CONDITIONS:
    1. The erection contractor shall verify that the structure and surfaces to receive prestressed concrete members are accurately sized and located, sound, true, and otherwise properly prepared.
    2. The general contractor shall be notified prior to the start of work of any conditions requiring correction.
    3. Work shall not be started until conditions are satisfactory.

3.02 PREPARATION

  1. PREPARATORY WORK:
    1. Place anchor bolt, plates, and dowels accurately to receive prestressed concrete members.

3.03 INSTALLATION

  1. ERECTION:
    1. Erect members plumb, level, true, in accurate alignment, and without cumulative dimensional error. Abut members with uniform joint width.
    2. Stabilize members securely during erection.
    3. Anchor members securely and permanently as indicated on approved shop drawings.
    4. Remove any temporary bracework upon completion.
    5. Fill holes and sinkages with mortar matching the adjacent surface finish.
  2. WELDING:
    1. Comply with AWS D1.1.
    2. Exercise care to prevent chipping or cracking of concrete.
    3. Clean exposed welds; apply touch-up paint as required.
    4. Leave exposed surfaces clean.
  3. ATTACHMENTS:
    1. Members may be drilled or “shot” provided no contact is made with prestressing steel,  subject to the approval of the precast manufacturer.

3.04 FINISHING

  1. PATCHING:
    1. Patching will be acceptable providing structural adequacy and appearance are not impaired.
    2. Field patching materials shall be furnished by the prestressed concrete manufacturer. Use of patching materials from other sources is not permitted.
    3. Match the color and texture of the surrounding concrete.
    4. Apply a bonding agent prior to patching.
    5. Minimize shrinkage.
    6. Replace defective work if patching is ruled unacceptable.
  2. PRODUCT CLEANING AND REPAIRING:
    1. Clean, repair, and touch up (or replace when directed) any and all products that have been soiled, discolored, or damaged by work of this Section.
    2. Remove debris from the project site upon completion of work (or sooner, if directed).

⇒ Section 03410 part 1 | part 2