310516-Aggregate.pdf

Steam Supply and Condensate Aggregate Return Piping Replacement 310516-1 PGRU, Geneva, NY

SECTION 310516

AGGREGATE

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Coarse aggregate materials.

B. Related Sections:

1. Section 312323 - Backfill.

2. Section 329219 - Seeding and Soil Supplements.

1.2 REFERENCES

A. American Association of State Highway and Transportation Officials:

1. AASHTO M147 - Standard Specification for Materials for Aggregate and Soil-

Aggregate Subbase, Base and Surface Courses.

2. AASHTO T180 - Standard Specification for Moisture-Density Relations of Soils

Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop.

B. ASTM International:

1. ASTM C136 - Standard Test Method for Sieve Analysis of Fine and Coarse

Aggregates.

2. ASTM D698 - Standard Test Method for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft3 (600 kN-m/m3)).

3. ASTM D1557 - Standard Test Method for Laboratory Compaction

Characteristics of Soil Using Modified Effort (6,000 ft-lbf/ft3 (2,700 kN-m/m3)).

4. ASTM D2487 - Standard Classification of Soils for Engineering Purposes

(Unified Soil Classification System).

5. ASTM D4318 - Standard Test Method for Liquid Limit, Plastic Limit, and

Plasticity Index of Soils.

1.3 SUBMITTALS

A. Samples: Submit, in air-tight containers, 10 lb sample of each type of fill to testing laboratory.

B. Materials Source: Submit name and location of imported materials suppliers, latest DOT source number, test number and results (if any).

1.4 QUALITY ASSURANCE

A. Furnish each aggregate material from single source throughout the Work.

Return Piping Replacement 310516-2 PGRU, Geneva, NY

PART 2 PRODUCTS

2.1 COARSE AGGREGATE MATERIALS

A. Crushed No. 1A Stone, Type A1: Clean, durable, sharp, angled fragments of rock of uniform quality; graded in accordance with ASTM C136, within the following limits:

Sieve Size Percent Passing

1/2 inch 100

1/4 inch 90-100

1/8 inch 0-15

B. Pea Gravel, Type A2: Conforming to New York State Department of Transportation Standard Specifications.

C. Item 4, Type A4: Containing approved blast furnace slag, stone, sand, and gravel or blends of these materials; graded within the following limits:

Sieve Size Percent Passing

2 inch 100

¼ inch 30-65

No. 40 5-40

No. 200 0-10

D. Type II Sub-base (Crusher Run), Type A5: Conforming to New York State Department of Transportation Standard Specifications.

E. Excavated Material: Type S1: Excavated on-site material, free of clay, friable material, debris, and stones larger than six inches.

F. Topsoil: Type S2: As specified in Section 329219.

2.2 SOURCE QUALITY CONTROL

A. All Aggregates shall be from a New York State Department of Transportation (NYSDOT) approved borrow pit.

Return Piping Replacement 310516-3 PGRU, Geneva, NY

PART 3 EXECUTION

3.1 EXCAVATION

A. Stockpile excavated material meeting requirements for coarse and fine aggregate materials.

B. Remove excess excavated materials not intended for reuse, from site.

3.2 STOCKPILING

A. Stockpile materials on site at locations indicated by the Owner.

B. Stockpile in sufficient quantities to meet Project schedule and requirements.

C. Separate different aggregate materials with dividers or stockpile individually to prevent mixing.

D. Direct surface water away from stockpile site to prevent erosion or deterioration of materials.

3.3 STOCKPILE CLEANUP

A. Remove stockpile, leave area in clean and neat condition. Grade site surface to prevent free standing surface water.

END OF SECTION