A02 - Statement of Work (SOW) - GEOGRID SPECS_FY20 Revised 27May20_NAA.pdf

SECTION A – DESCRIPTION/SPECIFICATIONS/WORK STATEMENT.

A-1. SCOPE. The work to be done under these specifications consists of furnishing and delivery of 300,000 square yards of geogrid material as specified herein to the Memphis District Corps of Engineers, Ensley Engineer Yard, 2915 Riverport Road, Memphis, Tennessee 38109.

A-2. APPLICABLE PUBLICATIONS. The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic description.

D 1777-96(2015) Standard Test Method for Thickness of Textile Materials

D 5261-10 Standard Test Method for Measuring Mass Per Unit Area of Geotextiles (R 1996)

D 4354-12 Standard Practice for Sampling of Geosynthetics for Testing

D 4595-11 Standard Test Method for Tensile Properties of Geotextiles by the Wide-Width Strip Method

(1) Geosynthetic Research Institute (GRI).

GG4(b) Determination of the Long Term Design Strength of Flexible Geogrids

A-3. MATERIALS.

A-3.1. Geogrid. A geogrid is defined as a network of integrally connected polymer tensile elements with aperture geometry sufficient to permit significant mechanical interlock with the surrounding soil. The geogrid shall be woven grid or a punched sheet-drawn polymer structure composed of PVC-coated or acrylic latex-coated polyester, polyethylene or polypropylene with the minimum required properties, as determined by the applicable ASTM standards listed in A-2 above.

A-3.2. Properties. The geogrid shall be a flexible geogrid and shall meet the physical requirements listed in Table No. 1 below. The long term design strength shall be based on GRI GG4(b).

A-4. CERTIFICATION. The Contractor shall submit a manufacturer’s certification that the geogrid material supplied meets the design criteria specified in Table No. 1 of this specification.

In case of dispute over validity of values, the Contractor will be required to supply test data from an approved laboratory to support the certified values submitted.

A-5. QUALITY CONTROL. The Contractor shall establish and maintain quality control for the work specified in this section to ensure compliance with contract requirements. A copy of these records and tests, as well as the records of corrective action taken, shall be furnished to the Government.

TABLE NO. 1

GEOGRID SPECIFICATIONS

PROPERTIES TEST METHOD UNIT VALUE

GEOMETRY

Aperture Size In 0.6 x 0.6 (min) Open Area 75% (min) Wide Width Tensile Strength ASTM D 4595-11 Lb/Ft Ultimate (MD)

Lb/FT Ultimate

(CMD)

1500 (min) 615 (min)

Thickness ASTM D 1777- 96(2015)

- Rib Mils 40 (min)

- Junction Mils 60 (min) Weight ASTM D 5261-10 Oz/SY 5.0 (min) Roll Weight (gross) Lb 120 (max) Roll Width Ft 11 (min) Elongation at Break ASTM D 4595-11 % 15 (max)

STRENGTH

Long Term Design Strength (75 year)

GRI GG4(b) Lb/Ft 750 (min)

SECTION B – PACKAGING AND MARKING.

B-1. PACKAGING. During all periods of shipment, the geogrid materials shall be protected from direct sunlight, ultra-violet rays, temperatures greater than 140 degrees F, mud, dirt, dust and debris. The geogrid materials shall also be protected from any physical damage such as tearing.

The rolls of geogrid shall be placed on pallets for shipping to allow loading and unloading via forklift. No more than 20 rolls of geogrid shall be placed on each pallet. The geogrid shall be secured to the pallets in a manner that prevents shifting of the rolls during loading and unloading.

B-2. MARKING. Each roll of geogrid shall have an attached label indicating the width, length, number of square feet and weight.

SECTION C – INSPECTION AND ACCEPTANCE.

C-1. ACCEPTANCE REQUIREMENTS. Geogrid will be accepted on the following basis:

C-1.1. Mill Certificate. The Contractor shall furnish the Government, in duplicate, a mill certificate and an affidavit signed by a legally authorized official from the company manufacturing the geogrid. The mill certificate and the affidavit shall attest that the geogrid meets the physical and manufacturing requirements stated in this specification.

C-1.2. Samples. If requested by the Government, the Contractor shall provide geogrid samples for testing to determine compliance with any or all of the requirements in this specification. All samples provided shall be from the same production lot as will be supplied for the contract. All samples shall be the full manufactured width of the geogrid and shall be at least 10 feet in length.

Samples submitted for testing shall be identified by manufacturer’s lot designation. Samples shall be taken in accordance with ASTM D 4354-12. All materials failing to meet the specifications will be rejected. When so rejected the material shall remain the property of the Contractor.

SECTION D – DELIVERIES OR PERFORMANCE.

D-1. DELIVERY. The material to be supplied under this purchase order shall be delivered F.O.B. to Ensley Engineer Yard, 2915 Riverport Road, Memphis, Tennessee, 38109 by a truck with a flatbed or flatbed trailer (enclosed conveyance is not acceptable) within 15 calendar days after issuance of the purchase order by the Government. Prior to shipment, the Contractor shall provide 48 hours advance notice of delivery date to the Government by contacting one of the following personnel:

Kevin Woods (901) 544-4518 Kevin Williams (901) 544-0803

Eric White (901) 544-3478

SECTION E – MEASUREMENT AND PAYMENT.

E-1. Measurement. The quantity of geogrid material delivered to Ensley Engineer Yard shall be measured by the square yard. Each roll shall have a label attached specifying the width, length, total number of square feet and weight.

E-2. Payment. Payment will be made at the purchase order unit price for the quantity of acceptable geogrid material delivered to Ensley Engineer Yard. No payment shall be made for geogrids replaced because of Contractor’s fault or negligence.

SECTION F – RENDITION OF INVOICES AND VOUCHERS.

F-1. Submission of Invoices. Invoices shall be submitted in triplicate, typewritten or with pen and ink. Terms of payment must be stated, including cash discount, if any.

F-2. Routings of Invoices and Vouchers. Invoices or vouchers shall be sent to the following address:

USACE-Memphis CEMVM-OD-O (ATTN: Eric White) 167 N. Main St., B-202 Memphis, Tennessee 38103-1894

GEOMETRY