SECTION 02511

CRUSHED STONE PAVING

PART 1 GENERAL

WORK INCLUDED

Crushed stone paving course, compacted.

RELATED WORK

Section 02211 - Rough Grading: Preparation of site for paving.

Section 02223 - Backfilling: Compacted fill for paving.

Section [_____ - _____:] [_____] prepared base.

Section [_____ - _____:] [_____] [timber] [concrete] curbs.

Section [_____ - _____:] Paving.

Section [_____ - _____:] [Drains,] [manholes,] [and] [_____,] including frames.

REFERENCES

ASTM C136 - Sieve Analysis of Fine and Coarse Aggregates.

TESTS

Gradation of stone materials will be performed in accordance with ASTM C136 and under provisions of Section [01400.] [01410.]

PART 2 PRODUCTS

MATERIALS

Coarse Stone: [Angular,] [Crushed,] [_____,] [washed] natural stone; free of shale, clay, friable materials and debris; graded [in accordance with ASTM C136] within the following limits:

Sieve_Size	Percent_Passing

2 inches (50 mm)	[100] [_____]

One inch (25 mm)	[95] [_____]

3/4 inch (19 mm) [95] [_____] to [100] [_____]	5/8 inch (16 mm) [75] [_____] to [100] [_____]	3/8 inch (9 mm) [55] [_____] to [85] [_____]	No. 4 [_____]

(4.[75] [_____] mm)	[35] [_____] to [60] [_____]

No. 16 [_____]

(1.18 [_____] mm)	[15] [_____] to [35] [_____]

No. 40 [_____]

(450 [_____] micro m)	[10] [_____] to 25 [_____]

No. 200 [_____]

([75] [_____] micro m)	[5] [_____] to [10] [_____]

Sand: Natural river or bank sand; [washed,] free of silt, clay, loam, friable or soluble materials, and organic matter.

PART 3 EXECUTION

INSPECTION

Verify compacted [subgrade] [granular base] [stabilized soil] [_____] is dry and ready to receive work of this Section.

Verify gradients and elevations of base are correct.

Beginning of installation means acceptance of existing conditions.

PLACING STONE PAVING

Spread stone material over prepared base to a total compacted thickness of [_____] inches (_____ mm.)

Place stone in [3] [_____] inch ([75] [_____] mm) layers and compact.

Level surfaces to elevations and gradients indicated.

Add small quantities of sand to stone mix as appropriate to assist compaction.

Compact placed stone materials to achieve [_____] lb/cu ft ([_____] kg/cu m) dry density.

Add water to assist compaction. With an excess water condition, rework topping and aerate to reduce moisture content.

Perform hand tamping in areas inaccessible to compaction equipment.

END OF SECTION