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Bridge Design Specifications, or Military Specification, MIL-C-882D.

4.

Frictionless Pads:  Tetrafluoroethylene (teflon), glass-fiber reinforced, bonded to stainless or mild-steel plates, of type required for in-service stress.

5.

High-Density Plastic:  Multimonomer, nonleaching, plastic strip.

Select material from options in paragraph below or add another material to suit Project.  Coordinate with counterflashing materials and details.

B.

Reglets:  [PVC extrusions.]  [Stainless steel, Type 302]  [Copper] [Reglets and flashing are specified in Division 7 Section “Sheet Metal Flashing and Trim.”] felt or fiber filled or cover face opening of slots.

C.

Accessories:  Provide clips, hangers, plastic or steel shims, and other accessories required to install architectural precast concrete units.

2.9

 GROUT MATERIALS

Add other proprietary grout systems to suit Project.  Show locations of each grout here or on Drawings if more than one type is retained.

A.

Sand-Cement Grout:  Portland Cement, ASTM C 150, Type I, and clean, natural sand, ASTM C 144, or ASTM C 404.  Mix at ratio of 1 part cement to 2-1/2 parts sand, by volume, with minimum water required for placement and hydration.

Retain paragraph below if nonshrink grout is required or if cement-grout shrinkage could cause structural deficiency.  For critical installations, require manufacturer to provide field supervision.

B.

Nonmetallic, Nonshrink Grout:  Premixed, nonmetallic, noncorrosive, nonstaining grout containing selected silica sands, portland cement, shrinkage-compensating agents, plasticizing and water-reducing agents, complying with ASTM C 1107, Grade A for drypack and Grades B and C for flowable grout and of a consistency suitable for application within a 30-minute working time.

C.

Epoxy-resin grout:  Two-component mineral-filled epoxy-resin: ASTM C881 of type, grade, and class to suit requirements.

2.10

 THIN AND HALF BRICK UNITS AND ACCESSORIES

Retain this Article if specifying thin veneer brick-faced precast concrete panels.  Type TBX brick units feature the tightest dimensional tolerances but may be too dimensionally variable to fit securely within form liner templates.  Pre-select brick and name prior to bid or establish set cost allowance.  If full-size brick units are required, use Division 4 Section “Unit Masonry Assemblies.”

A.

Thin or Half Brick Units:  ASTM C216, Type FBX or ASTM C 1088, Grade Exterior, Type TBX, [not less than ½ inch (13 mm)]  [3/4 inch (19 mm)] [1 inch (25 mm)] thick with a tolerance of plus or minus 1/16 inch (1.59 mm) and as follows:

1.

Face Size:  Standard, 2-1/4 inches (57 mm) high by 8 inches (203 mm) long.

2.

Face Size:  Modular, 2-1/4 inches (57 mm) high by 7-1/2 to 7-5/8 inches (190 to 194 mm) long.

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