3.4.2
Drilling and Installing Mechanical Anchors
Drill holes for anchors using drilling equipment suitable for the intended
purpose, as approved by the Contracting Officer. Diameter of holes shall
be [as shown on the drawings] [as recommended by the anchor manufacturer].
Clean holes by flushing with water and compressed air prior to placing
grout. Install anchors and set anchors in place in accordance with the
manufacturer's recommendations.
3.4.3
Installating Reinforcement
**************************************************************************
NOTE: If the referenced specification is not
included in the project specification, applicable
portions should be inserted here.
**************************************************************************
Place reinforcement steel and accessories as specified and as shown on the
contract drawings. Placement details of steel and accessories not
specified or shown on the drawings shall be in accordance with ACI SP-66
and ACI 318/318R or as directed by the Contracting Officer. Fabricate and
place reinforcing steel in accordance with 03201 STEEL BARS AND WELDED WIRE
FABRIC FOR CONCRETE REINFORCEMENT FOR CIVIL WORKS.
3.5
MIXING MATERIALS
Make batches small enough to ensure placement before binder sets.
Mix
materials in accordance with manufacturer's recommendations.
3.6
SURFACE PREPARATION
**************************************************************************
NOTE: For additional guidance on surface
preparation, see International Concrete Repair
Institute Guidelines No. 03732 "Selecting and
Specifying Concrete Surface Preparation for Sealers,
Coatings, and Polymer Overlays".
**************************************************************************
3.6.1
General
After removal of concrete to the specified limits, clean the surface to
which the repair material is to be applied to remove dust, debris and
laitance. Perform final cleaning immediately prior to placement of the
repair material. Unless otherwise specified, keep the existing concrete
wet for a minimum of 12 hours and dried for 12 hours immediately prior to
placing new concrete. The surface shall be dry with no standing water on
the surface upon which concrete is placed.
3.6.2
Cleaning
**************************************************************************
NOTE: If the referenced specification is not
included in the project specification, applicable
portions should be inserted here.
**************************************************************************
Perform all cleaning operations to the satisfaction of the Contracting
Officer. Protect adjacent structures and embedded items. Use potable
SECTION 03931
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