31 05 19.13 - Geotextiles For Earthwork.pdf

31 05 19.13 – GEOTEXTILES FOR EARTHWORK

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SECTION 31 05 19.13 – GEOTEXTILES FOR EARTHWORK

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Turf reinforcement mats (TRMs).

2. Nonwoven geotextile material.

B. Related Requirements:

1. Section 31 23 33 – Trenching and Backfilling for Utilities

2. Section 31 25 00 – Erosion and Sedimentation Controls: Erosion and sedimentation control devices.

3. Section 32 11 23 – Aggregate Base Courses: Subbase and base course for placement under paving.

1.2 REFERENCE STANDARDS

A. American Association of State Highway and Transportation Officials:

1. AASHTO M288 - Standard Specification for Geotextile Specification for Highway Applications.

B. ASTM International:

1. ASTM D3786 - Standard Test Method for Bursting Strength of Textile Fabrics— Diaphragm Bursting Strength Tester Method

2. ASTM D4355 - Standard Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture and Heat in a Xenon Arc Type Apparatus.

3. ASTM D4491 - Standard Test Methods for Water Permeability of Geotextiles by Permittivity.

4. ASTM D4533 - Standard Test Method for Trapezoid Tearing Strength of Geotextiles.

5. ASTM D4632 - Standard Test Method for Grab Breaking Load and Elongation of

6. ASTM D4751 - Standard Test Method for Determining Apparent Opening Size of a Geotextile.

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7. ASTM D4833 - Standard Test Method for Index Puncture Resistance of Geomembranes and Related Products.

8. ASTM D4873 - Standard Guide for Identification, Storage, and Handling of Geosynthetic Rolls and Samples.

9. ASTM D4884 - Standard Test Method for Strength of Sewn or Bonded Seams of

10. ASTM D4886 - Standard Test Method for Abrasion Resistance of Geotextiles (Sandpaper/Sliding Block Method).

11. ASTM D6524 - Standard Test Method for Measuring the Resiliency of Turf Reinforcement Mats (TRMs).

12. ASTM D6525 - Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products.

13. ASTM D6566 - Standard Test Method for Measuring Mass per Unit Area of Turf Reinforcement Mats.

14. ASTM D6567 - Standard Test Method for Measuring the Light Penetration of a Turf Reinforcement Mat (TRM).

15. ASTM D6575 - Standard Test Method for Determining Stiffness of Geosynthetics Used as Turf Reinforcement Mats (TRMs).

16. ASTM D6818 - Standard Test Method for Ultimate Tensile Properties of Rolled Erosion Control Products.

1.3 SUBMITTALS

A. Section 01 33 00 – Submittal Procedures: Requirements for submittals.

B. Product Data: Submit manufacturer information including tensile strength, elongation, thickness, UV resistance, and other material specifications.

C. Shop Drawings: Indicate fabric layout, seam locations, and overlap details in installation drawings.

D. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.

E. Manufacturer Instructions: Submit detailed instructions on installation requirements, including storage and handling procedures.

F. Source Quality-Control Submittals: Indicate results of factory tests and inspections.

G. Field Quality-Control Submittals: Indicate results of Contractor-furnished tests and inspections.

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H. Qualifications Statements:

1. Submit qualifications for manufacturer and installer.

2. Submit manufacturer's approval of installer.

1.4 CLOSEOUT SUBMITTALS

A. Section 01 77 00 – Closeout Procedures: Requirements for submittals.

B. Project Record Documents: Record actual locations of geotextile material, including placement depth.

1.5 MAINTENANCE MATERIAL SUBMITTALS

A. Section 01 73 00 – Execution Requirements: Requirements for maintenance materials.

1.6 QUALITY ASSURANCE

A. Perform Work according to Elizabethtown Area Water Authority standards.

B. Maintain one copy of each standard affecting Work of this Section on Site.

1.7 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this Section with minimum three years' documented experience.

B. Installer: Company specializing in performing Work of this Section with minimum three years' documented experience and approved by manufacturer.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Section 01 61 00 – Product Requirements: Requirements for transporting, handling, storing, and protecting products.

B. Inspection: Accept materials on Site in manufacturer's original packaging and inspect for damage.

C. Comply with ASTM D4873.

D. Store materials according to manufacturer instructions.

E. Protection:

1. Protect materials from moisture and dust by storing in clean, dry location remote from construction operations areas.

2. Provide additional protection according to manufacturer instructions.

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PART 2 - PRODUCTS

2.1 SUBSURFACE DRAINAGE GEOTEXTILE

A. Manufacturers:

1. TenCate Geosynthetics – Mirafi FW402

2. Substitutions: As specified in Section 01 61 00 – Product Requirements.

B. Description:

1. Non-biodegradable, UV-resistant, woven geotextile fabric.

2. Material: Polypropylene.

3. Calendar such that yarns will retain relative positions.

C. Performance and Design Criteria:

1. Comply with AASHTO M288.

2.2 SEDIMENT CONTROL GEOTEXTILE MATERIALS

1. TenCate Geosynthetics – Mirafi HP570

2. Substitutions: As specified in Section 01 61 00 – Product Requirements.

1. Non-biodegradable, UV-resistant, woven geotextile fabric.

3. Calendar such that yarns will retain relative positions.

C. Performance and Design Criteria:

1. Comply with AASHTO M288.

2.3 NONWOVEN GEOTEXTILE MATERIALS

1. TenCate Geosynthetics – Mirafi S1200

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2. Substitutions: As specified in Section 01 61 00 – Product Requirements

1. Non-biodegradable, UV-resistant, nonwoven geotextile fabric.

3. Edges: Selvaged or finished to prevent separation of outer material.

4. Calendar such that yarns will retain relative positions.

2.4 ACCESSORIES

A. Sewing Thread:

1. Material: Polypropylene Polyester or Kevlar.

2. Durability: Equal to or greater than durability of geotextile.

B. Securing Pins:

1. Material: Steel rods or bars.

2. Diameter: 3/16 inch.

3. Minimum Length: 12 inches.

4. Washers:

a. Material: Steel.

b. Outside Diameter: Minimum 1-1/2 inches.

c. Inside Diameter: 1/4 inch.

d. Thickness: 1/8 inch.

C. Wire Staples:

1. Material: Steel.

2. Minimum Size: 10 gage.

3. Minimum Length: 6 inches.

2.5 SOURCE QUALITY CONTROL

A. Section 01 40 00 – Quality Requirements: Requirements for testing, inspection, and analysis.

B. Provide shop inspection and testing of completed assembly.

C. Certificate of Compliance:

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1. If manufacturer is approved by authorities having jurisdiction, submit certificate of compliance indicating Work performed at manufacturer's facility conforms to Contract Documents.

2. Specified shop tests are not required for Work performed by approved manufacturer.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Section 01 73 00 – Execution Requirements: Requirements for installation examination.

B. Verify that underlying surface is smooth and free of ruts or protrusions that could damage geotextile material.

3.2 PREPARATION

A. Section 01 73 00 – Execution Requirements: Requirements for installation preparation.

B. Subgrade Material and Compaction Requirements: As specified in Section 31 23 33 – Trenching and Backfilling for Utilities

3.3 INSTALLATION

A. Geotextile Material:

1. Lay and maintain smooth and free of tensile stresses, folds, wrinkles, or creases.

2. Ensure that material is in direct contact with subgrade.

3. Orientate with long dimension of each sheet transverse to direction of slope.

4. Minimum Unseamed Joints Overlap: 18 inches.

B. Securement Pins:

1. Insert through geotextile midway between edges of overlaps and minimum 6 inches from free edges.

2. Minimum Spacing:

a. Slopes Steeper than 3 Horizontal on 1 Vertical: 24 inches o.c.

b. Slopes 3 Horizontal on 1 Vertical to 4 Horizontal on 1 Vertical: 3 feet o.c.

c. Slopes Flatter than 4 Horizontal on 1 Vertical: 5 feet o.c.

3. Ensure that washer bears against geotextile.

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3.4

A. Seams:

1. Minimum Seamed Joints Overlap: 12 inches at longitudinal and transverse joints.

2. Seams across Slope: Lap upper panel over lower panel.

3. Sewn Seams:

a. Stitch Type: As recommended by geotextile manufacturer.

b. Tie off thread at the end of each seam to prevent unraveling.

4. Thermal Seams:

a. As recommended by geotextile manufacturer.

b. Comply with ASTM D4886.

B. Penetrations: As recommended by geotextile manufacturer.

C. Repairing Damaged Geotextiles:

1. Repair torn or damaged geotextile by placing patch of same type of geotextile over damaged area minimum of 12 inches beyond edge of damaged area, and fasten as recommended by geotextile manufacturer.

2. Remove and replace geotextile rolls which cannot be repaired.

D. Fill and Cover:

1. Place fill to prevent tensile stress or wrinkles in geotextile.

2. Place fill from bottom of side-slopes upward.

3. Do not drop fill from height greater than 3 feet.

3.5 FIELD QUALITY CONTROL

A. Section 01 40 00 – Quality Requirements: Requirements for inspecting and testing.

3.6 PROTECTION

A. Section 01 73 00 – Execution Requirements: Requirements for protecting finished Work.

B. Ballast: Adequate to prevent uplift of material by wind.

C. UV Exposure: Do not leave material uncovered for more than 14 days after installation.

D. Do not use staples or pins to hold geotextiles in place where located adjacent to other geosynthetic layers that could be damaged.

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E. Do not operate equipment directly on top of geotextile.

END OF SECTION 31 05 19.13