ANCHORS AND TIES

proportions recommended by the manufacturer and as selected and approved,

but not exceeding 15 percent of cement weight. Limit carbon black to 2

percent of cement weight. [Provide colored mortar for grouting in [_____]].

]2.4.5

Water

Water for mixing shall be potable.

2.5

ANCHORS AND TIES

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NOTE: Use rigid anchors for wall intersections.

Use flexible anchors where movement will occur. For

information on specific types see the National

Concrete Masonry Association (NCMA) TEK NOTE 21-A.

In walls where corrosion of ties is likely, use

stainless steel ties.

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2.5.1

Galvanizing

ASTM A 153/A 153M, B-2.

Anchors and ties shall be galvanized.

2.5.2

Rigid Anchors

ASTM A 568/A 568M.

Intersecting wall anchors shall be as indicated.

2.5.3

Wire Ties

ASTM A 82, 5 mm 3/16 inch diameter minimum.

2.5.4

Horizontal Truss

ASTM A 82, minimum 9 gauge longitudinal and 12 gauge cross wires.

Use at

400 mm 16 inches o.c. or every other row.

PART 3

EXECUTION

3.1

PROTECTION

Protect work from damage by other trades at all times. Provide plywood

barricades in heavy traffic areas. Protect cove base from damage by

scaffold legs.

3.2

INSTALLATION

The ambient temperature where materials are to be installed shall be not

less than 4 degrees C 40 degrees F and rising, but not more than 30 degrees

C 85 degrees F. Maintain temperature requirements by methods approved by

the Contracting Officer for the period the work is being performed and at

least 48 hours after the work is completed. Do not use admixtures or

antifreeze compounds.

a.

Lay work out in advance to determine jointing and cutting and to

obtain uniformity in the finished work. Joints in glazed

structural clay facing-tile shall be approximately 6 mm 1/4 inch.

Joints in pre-faced masonry units shall be 6 mm 1/4 inch on

exposed glazed face(s), allowing standard 10 mm 3/8 inch joint

between unglazed portions of the concrete masonry units.

SECTION 04215

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