SECTION 02510

ASPHALTIC CONCRETE PAVING

PART 1 GENERAL

SECTION INCLUDES

Asphaltic concrete paving [and surface sealer]; wearing binder or base course.

[Aggregate base course.]

PRODUCTS INSTALLED BUT NOT FURNISHED UNDER THIS SECTION

[Section [_____-__________]:	Supply of gutter drainage grilles and frames for placement by this Section.]

RELATED SECTIONS

Section 02211 - Rough Grading: Preparation of site for paving [and base].

Section 02223 - Backfilling:	Compacted subbase for paving.

Section [02231 - Aggregate Base Course] [______-____________]: [________] base course.

Section [______-____________]:	[Paving] [Pavers].

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

Section 02853 - Parking Bumpers:	[Concrete] [Timber] bumpers.

Section 09900 - Painting: Pavement markings.

UNIT PRICE - MEASUREMENT AND PAYMENT

Asphalt Pavement Mix (Binder Course):

Basis of Measurement: By the [ton] [cubic yard] [________] ([tonne] [cubic meter] [________]).

Basis of Payment: Includes mix design, supplying to site, testing.

Asphalt Pavement Mix (Wearing Course):

Basis of Measurement: By the [ton] [cubic yard] [________] ([tonne] [cubic meter] [________]).

Basis of Payment: Includes mix design, supplying to site, testing.

Asphalt Pavement Placed:

Basis of Measurement: By the square [yard] [____] ([meter] [____]) per inch (25 mm) thickness.

Basis of Payment: Includes preparing base, tack coating surfaces, placing, compacting and rolling, testing.

Seal Coat:

Basis of Measurement: By the square [yard] [____] ([meter] [____]).

Basis of Payment: Includes preparing surfaces and applying.

REFERENCES

MS-2 - Mix Design Methods for Asphalt Concrete and Other Hot Mix Types - The Asphalt Institute (AI).

MS-3 - Asphalt Plant Manual - The Asphalt Institute (AI).

MS-8 - Asphalt Paving Manual - The Asphalt Institute (AI).

MS-19 - Basic Asphalt Emulsion Manual, The Asphalt Institute (AI).

ASTM D946 - Penetration-Graded Asphalt Cement for Use in Pavement Construction.

PERFORMANCE REQUIREMENTS

Paving: Designed for [parking] [light duty commercial vehicles] [residential streets] [main street arteries] [movement of trucks up to 30,000 lbs (13,600 kg)] [movement of trucks up to 60,000 lbs (27,200 kg)] [________________].

QUALITY ASSURANCE

Perform Work in accordance with [AI Manual MS-8] [[State] [Municipality] of [________] [Highways] [Public Work's] standard.]

Mixing Plant: Conform to [AI Manual MS-3] [[State] [Municipality] of [________] [Highways] [Public Work's] standard.]

Obtain materials from same source throughout.

Maintain [one copy] [[____] copies] of [each] document on site.

REGULATORY REQUIREMENTS

Conform to [applicable] [___________] code for paving work on [public] [________] property.

ENVIRONMENTAL REQUIREMENTS

Do not place asphalt when base surface temperature is less than [40] [____] degrees F ([4] [____] degrees C), or surface is wet or frozen.

PART 2 PRODUCTS

MATERIALS

Asphalt Cement: [ASTM D946] [________] [In accordance with [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

Aggregate for Binder Course Mix:	[In accordance with [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

Aggregate for Wearing Course Mix: [In accordance with [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

Fine Aggregate: [[________] sand] [In accordance with [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

Mineral Filler: Finely ground particles of limestone, hydrated lime or other mineral dust, free of foreign matter.

ACCESSORIES

Primer: [Homogeneous, medium curing, liquid asphalt] [In accordance with [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

Tack Coat: [Homogeneous, medium curing, liquid asphalt] [In accordance with [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

Seal Coat: AI MS-19, [sand] [fog] [slurry] type; [________] manufactured by [____________].

ASPHALT PAVING MIX

Use dry material to avoid foaming.	Mix uniformly.

Binder Course: [[4.5 to 6] [____] percent of asphalt cement by weight in mixture in accordance with AI [MS-2] [____]] [[State] [Municipality] of [________] [Highways]

[Public Work's] standards.]

Wearing Course: [5 to 7] [________] percent of asphalt cement by weight in mixture in accordance with AI [MS-2] [____]] [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

SOURCE QUALITY CONTROL

Provide mix design for asphalt under provisions of Section [01400.] [________.]

Submit proposed mix design [of each class of mix] for review prior to commencement of work.

Test samples in accordance with AI [MS-2] [____]] [________].

PART 3 EXECUTION

EXAMINATION

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

Verify that compacted [subgrade] [granular base] [stabilized soil] [________] is dry [and ready to support paving and imposed loads].

Verify gradients and elevations of base are correct.

SUBBASE

[Section 02231 - Aggregate Base Course forms the base construction for work of this Section.]

PREPARATION - PRIMER

Apply primer in accordance with [manufacturer's instructions] [AI MS-2] [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

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

Apply primer on base or subbase over subgrade surface at uniform rate of [1/3] [1/2] [____] gal/sq yd ([1.5] [2.25]

[____] L/sq m).

Apply primer to contact surfaces of curbs, gutters and [________].

Use clean sand to blot excess primer.

PREPARATION - TACK COAT

Apply tack coat in accordance with [manufacturer's instructions] [AI [MS-19] [____]] [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

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

Apply tack coat on asphalt or concrete surfaces over subgrade surface at uniform rate of [1/3] [1/2] [____] gal/sq yd ([1.5] [2.25] [____] L/sq m).

Apply tack coat to contact surfaces of curbs, gutters and [________].

Coat surfaces of [manhole] [catch basin] [________] frames with oil to prevent bond with asphalt pavement. Do not tack coat these surfaces.

PLACING ASPHALT PAVEMENT - SINGLE COURSE

Install Work in accordance with [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

Place asphalt within [24] [____] hours of applying primer or tack coat.

Place to [[____] inch ([____] mm) compacted thickness] [thickness identified in schedule at end of Section].

Install [gutter drainage grilles and frames] [manhole frames] and [________] in correct position and elevation.

Compact pavement by rolling.	Do not displace or extrude pavement from position. Hand compact in areas inaccessible to rolling equipment.

Develop rolling with consecutive passes to achieve even and smooth finish, without roller marks.

PLACING ASPHALT PAVEMENT - DOUBLE COURSE

Place asphalt binder course within [24] [____] hours of applying primer or tack coat.

Place binder course to [[____] inch ([____] mm) compacted thickness] [thickness identified in schedule at end of Section].

Place wearing course within [two] [____] hours of placing

and compacting binder course.

Place wearing course to [[____] inch ([____] mm) compacted thickness] [thickness identified in schedule at end of Section].

Install [gutter drainage grilles and frames] [manhole frames] and [________] in correct position and elevation.

Compact pavement by rolling.	Do not displace or extrude pavement from position. Hand compact in areas inaccessible to rolling equipment.

Develop rolling with consecutive passes to achieve even and smooth finish, without roller marks.

CURBS

Install extruded asphalt curbs of [________] profile [as indicated].

SEAL COAT

Apply seal coat to surface course [and asphalt curbs] in accordance with [AI [MS-19] [____]] [[State] [Municipality] of [________] [Highways] [Public Work's] standards.]

TOLERANCES

Flatness: Maximum variation of [1/4] [____] inch ([6] [____] mm) measured with 10 foot (3 m) straight edge.

Scheduled Compacted Thickness: Within [1/4] [____] inch ([6] [____] mm).

Variation from True Elevation: Within [1/2] [____] inch ([12] [____] mm).

FIELD QUALITY CONTROL

Field [inspection and] testing will be performed under provisions of Section [01400.] [________.]

Take samples and perform tests in accordance with [AI [MS-2] [____]] [________].

PROTECTION

Immediately after placement, protect pavement from mechanical injury for [____] days.

SCHEDULES

Pavement at Truck Ramp and Garbage Area:	Single course of 3-1/2 inch compacted thickness, sand seal coat.

Pavement at Parking Areas: Two courses; binder course of 2-1/2 inch compacted thickness and wearing course of 1 inch compacted thickness, fog seal coat.

Pavement at Rear Bus Loading Area: Thickness and compaction of subbase to support vehicles up to 30,000 lbs).

Pavement Front Sidewalks: Thickness and compaction of subbase to support moderate pedestrian traffic.

END OF SECTION