SECTION 02519

BRICK PAVERS

PART 1 GENERAL

SECTION INCLUDES

Clay brick pavers.

[[Sand] [Mortar] setting bed.]

[Sand] [Mortar] joints.

[[________] [curbs] [border].]

[Control] [Expansion] joints.

RELATED SECTIONS

Section 02223 - Backfilling: Compacted fill preparation.

Section 02607 - Manholes and Covers:	[Manholes] [Drains] and [________], including frames.

[Section [______-____________]: [Concrete] [Asphaltic] paving for brick paver base.]

[Section [______-____________]: [________] [curbs] [border].]

Section 07900 - Joint Sealers.

UNIT PRICE - MEASUREMENT AND PAYMENT

Brick Pavers on Sand Bed:

Basis of Measurement: By the square [foot] [________] ([meter] [________]).

Basis of Payment: Includes preparation of substrate, sand cushion, pavers, sand jointing, finishing.

***** [OR] *****

Brick Pavers on Mortar Bed:

Basis of Measurement: By the square [foot] [________] ([meter] [________]).

Basis of Payment: Includes preparation of substrate, mortar bed, pavers, mortar jointing, finishing.

[Brick Curbs:

Basis of Measurement: By the linear [foot] [________] ([meter] [________]).

Basis of Payment: Includes preparation of substrate, curbs, jointing.]

REFERENCES

ANSI/ASTM A185 - Welded Steel Wire Fabric for Concrete Reinforcement.

ASTM C33 - Concrete Aggregates.

ASTM C144 - Aggregate for Masonry Mortar.

ASTM C150 - Portland Cement.

ASTM C270 - Mortar For Unit Masonry.

SYSTEM DESCRIPTION

Paving and setting bed to accommodate pedestrian traffic.

Paving and Prepared Soil Base: Support gross vehicular loads of [____] lbs ([____] kg) [nominal] [maximum].

SUBMITTALS

Submit under provisions of Section [01300.] [________.]

Shop Drawings: Indicate on shop drawings, layout of pavers, [dimensions of paved areas,] control jointing, elevations, and affected adjacent construction.

Product Data: Provide data on characteristics of paver unit, dimensions, and special shapes.

Samples:	Submit [two] [_______] sample paver units illustrating color, surface finish, and texture.

QUALIFICATIONS

Paver Manufacturer: Company specializing in manufacturing the Products specified in this section with minimum [three] [_______] years [documented] experience.

Installer: Company specializing in performing the work of this section [with [__________] years [documented] experience] [approved by paver manufacturer].

MOCKUP

Provide mockup of paving layout under provisions of Section [01400.] [________.]

Size: [100] [____] sq ft ([10] [____] sq m).

Install [[sand] [mortar] setting bed,] brick pavers, and accessories to pattern indicated.

Show range of shades, color, and texture of pavers.

Mockup may [not] remain as part of the Work.

ENVIRONMENTAL REQUIREMENTS

Do not install mortar when surrounding air or substrate surface temperature is below 50 degrees F (10 degrees C) prior to, during, and 48 hours after completion of work.

Do not install mortar when surrounding air or substrate surface temperature is above 90 degrees F (32 degrees C) during or 48 hours after completion of the work.

Do not install mortar when wind velocity exceeds [15] [____] mph ([24] [____] kph) or relative humidity exceeds 50 percent.

At end of working day, or during rainy weather, cover work exposed to weather with waterproof coverings, securely anchored.

PART 2 PRODUCTS

MANUFACTURERS

[__________________________________] Product [_________].

[__________________________________] Product [_________].

[__________________________________] Product [_________].

Substitutions: Under provisions of Section [01600.] [________.]

MATERIALS

Pavers: [Extruded] [Hand molded] fire clay, fired to achieve the following characteristics:

Property________________________Value

Compressive Strength	[____] psi ([____] KPa)

Moisture Absorption (maximum)	[____] percent

Size (nominal)	[__ x __ x __] inches

([__ x __ x __] mm)

Color	[________]

Exposed Surface Texture	[________]

Special Shapes	[________]

SAND MATERIALS

Sand for Base [and Joint Filler]: [ASTM [C33] [C144],] clean [washed] river or bank sand containing maximum of [50] [___] percent particle size of No. [50] [___] ([300] [____] micro m) sieve.

****** [OR] ******

CEMENTITIOUS MATERIALS

Portland Cement: ASTM C150, Type 1; [white] [grey] color.

Sand: [ASTM [C144] [C33]] [sharp, coarse, clean, screened sand free from deleterious material].

Water:	Potable and not detrimental to mortar.

Admixtures: [Air entrainment to achieve [5 -7] [________] percent] [________________].

Color: Mineral type, non-fading, [___________] color as manufactured by [____________________].

REINFORCEMENT

Reinforcing Mesh: ANSI/ASTM A185; [2 x 2] [___x___], [16] [____] gage ([50 x 50] [___x___], [1.5] [____] mm]; galvanized steel.

ACCESSORIES

Separation Sheet: [No. 15 asphalt roofing felt] [[6] [____] mil ([0.15] [____] mm) thick black polyethylene]

[________].

[Border] [Curbs]: [________].

Cleaning Solution: Type recommended by paver manufacturer.

Joint Filler: [Cork] [________] type, self expanding, [________] manufactured by [____________].

Sealant:	[Urethane, self levelling] [________] type as specified in Section 07900 [including bond breaker from sealant].

MIXES

Cementitious Bed: Portland cement mix conforming to the following:

Property________________________Value

Compressive Strength (28 day)	[2000] [____] psi ([15] [____] MPa)

Slump	[3 to 4 [____] inches ([75 to 100] [____] mm)

Air Entrained	[5 to 7] [____] percent

Joint Mortar: ASTM C270 Type [____].

****** [OR] ******

Joint Mortar: Portland cement mix conforming to the following:

Property________________________Value

Compressive Strength (28 day)	[3000] [____] psi ([20] [____] MPa)

Slump	[1 to 2] [____] inches ([25 to 50] [____] mm)

Air Entrained	[5 to 7] [____] percent

[Color admixture]	[In accordance with manufacturer's instructions]

Add admixtures in accordance with manufacturer's instructions.

Thoroughly mix ingredients in quantities required for immediate use.

Use within two hours after mixing. Do not re-temper thereafter.

PART 3 EXECUTION

EXAMINATION

Verify substrate conditions under provisions of Section [01039.] [________.]

Verify substrate is ready to support pavers and imposed loads.

Verify gradients and elevations of substrate are correct.

INSTALLATION - SAND SETTING BED

Spread sand evenly over prepared substrate surface to a [nominal] [maximum] thickness of [____] inches ([____] mm).

Dampen and roller compact sand to level surface.

Screed and scarify top 1/2 inch (13 mm) of sand.

Place paver units in [herringbone] [ashlar] [running bond] [________] pattern [to match existing], from straight reference line.

Place half units or special shaped units at edges and interruptions. Maintain [tight] [evenly spaced] joints. Machine saw partial units.

[Sprinkle sand over surface and sweep into joints. Moisten joints and recover with additional sand until firm joints are achieved. Remove excess sand.]

Tamp and level paver units with mechanical plate vibrator until units are firmly bedded, level, and to correct elevation and slope gradient.

****** [OR] ******

INSTALLATION - MORTAR SETTING BED

[Coordinate placement of snow melting system.]

Set paver units in full cementitious mortar bed of minimum [____] inch ([____] mm) thickness, to support pavers over full bearing surface.

[Place reinforcement [at mid-height] [________] of bed thickness.]

Place paver units in [herring bone] [ashlar] [running bond] [________] pattern [to match existing,] from straight reference line.

Place half units or special shaped units at edges and interruptions. Machine saw partial units.

Maintain tight joints between pavers, and at abutting vertical surfaces and protrusions.

****** [OR] ******

Maintain uniform joint width of [3/8] [____] inch ([9] [____] mm) between pavers, and at abutting vertical surfaces and protrusions. To accommodate mortar, rake out joints 1/4 to 3/8 inch (6 to 9 mm) deep.

Fill joints with mortar.	Pack and work into voids. Neatly tool surface to [concave] [flush] [________] joint.

Form control [and expansion] joints [as detailed] [with sealant [and backing rod] [and bond breaker]] in lieu of pointing mortar. Form control joints [1/2] [____] inch ([13] [____] mm) wide. Form expansion joints [____] inches ([____] mm) wide.

****** [OR] ******

INSTALLATION - OVER [CONCRETE] [ASPHALTIC] PAVING

[Sweep substrate surface clean of loose matter.]

Place separation sheet over paved surfaces in [one layer] [two layers laid perpendicular]. Butt edges and ends; do not lap.

Place paver units in [herringbone] [ashlar] [running bond] [________] pattern [to match existing], from straight reference line.

[Sprinkle sand over surface and sweep into joints. Moisten joints and recover with additional sand until firm joints are achieved. Remove excess sand.]

CLEANING

Do not clean pavers until pavers and mortar are dry.

Clean soiled surfaces using cleaning solution. Do not harm pavers, joint materials, or adjacent surfaces.

Use non-metallic tools in cleaning operations.

Rinse surfaces with clean water.

Broom clean paving surfaces. Dispose of excess sand.

PROTECTION OF FINISHED WORK

Protect finished Work under provisions of Section [01500.] [________.]

[Do not permit traffic over unprotected paver surface.] [Protect paver surface with sheets of plywood sheathing.]

END OF SECTION