SOW Aggregate Stone Products 20 Jan 2020.pdf

SCOPE OF WORK IDIQ FOR AGGREGATE STONE PRODUCTS 27JAN2020

Title: IDIQ for Aggregate Stone Products Location: McAlester Army Ammunition Plant (MCAAP)

1 C Tree Road McAlester, Oklahoma 74501-9002

PART 1 -GENERAL

1.1 SCOPE OF WORK

The government objective is to award an unfunded three-year IDIQ contract for the purchase and delivery of aggregate stone products on an as-needed basis to McAlester Army Ammunition Plant in McAlester, OK. The Contractor shall furnish the materials as per this Scope of Work (SOW) and in accordance with (IAW) all specifications herein for each separate item defined in Section 2.1. The contractor must verify all product data, testing data, and quantities required. Any materials and services to be furnished under this contract shall be ordered by issuance of delivery order(s) IAW DFARS 252.216-7006. Such orders may be issued from date of contract award through three (3) years from date of contract award.

1.2 LOCATION

McAlester Army Ammunition Plant’s main entrance is located in Savanna, OK, approximately 6 miles south of McAlester, OK in Pittsburg County. The final delivery locations are within the Restricted Area of MCAAP and shall require specific credentials and restrictions further defined in the contract documentation.

1.3 SUBMITTALS

The contractor shall be required to furnish submittals at the time of bidding. Submittals shall include for each item identification of the material source, product data, test data showing conformance to the specifications, and any certifications as required. Submittals shall be formally prepared and furnished to the contracting officer and reviewed for approval by the technical point of contact. Updated submittals shall be provided to the Government upon request, at such a time that the material supplier is required to re-certify their material, or in the event that material supplier identifies a change in the material properties during the term of the contract.

1.4 POINT OF CONTACT

The primary point of contact (POC) will be the Contracting Officer for the Government noted in the contract documentation.

PART 2 - PRODUCTS

2.1 MATERIALS

All material items shall be as defined and conform to the specifications provided for each line item defining the technical requirements. Each item shall be priced separately for delivery to different locations on the installation as specified, henceforth referred to as Zones 1 through 4. Zones shall be as defined in Section 2.2.3. For the purpose of this solicitation and each delivery order, minimum quantities are based on a truckload that is estimated to be 24 short tons.

2.1.1 Item 1 – Railroad Ballast

Material: No. 4 Ballast (2”) Delivery Location(s): Zones 1 & 4 Guaranteed Minimum Qty: 24 Short Tons Contract Maximum Qty: 50,000 Short Tons

2.1.1.1 Specifications:

The ballast material shall be in accordance with Chapter 1, Part 2 of the latest version of the American Railway Engineering and Maintenance-of-Way Association’s (AREMA) Manual for Railway Engineering (MRE) and as additionally specified in the subsequent Sections 1 and 2. The following specifications are not all-inclusive and are intended to identify key information along with more stringent specifications meant to supersede the AREMA MRE as applicable.

1. General Requirements:

a. The ballast shall be crushed stone composed of hard, dense, durable, angular particles or fragments, free of deleterious materials such as, but not limited to, vegetation, clay lumps, sand, silt, and friable particles.

b. The ballast material shall be of a single, homogenous source. Mixing of multiple material sources shall not be allowed.

c. The material supplier shall provide submittals of product data and all test data specified in Table 2.1.1.1 for the proposed material showing conformance to the specifications herein. The product data shall identify the type of stone constituting the material. The values in Table 2.1.1.1 assume limestone material based on its prevalence in the vicinity of MCAAP. Refer to the AREMA MRE for the values relating to other stone types.

2. Material Properties

Table 2.1.1.1

Analysis Type Test Type

Sampling

ASTM D 75

C 702

Sieve Size % Passing

2" 100

1 1/2" 90-100

1" 20-55

3/4" 0-15

1/2" -

3/8" 0-5

ASTM C 117 No. 200 < 1

Specific Gravity ASTM C 127

Absorption ASTM C 127

Percent Clay Lumps & Friable Particles ASTM C 142

Durability (See Note 1)

ASTM C 131/C 535,

L.A. Abrasion

Soundness, Sodium Sulfate ASTM C 88

Unit Weight ASTM C 29

Flat and/or Elongated Particles ASTM D 4791

< 0.5%

< 30%

< 5%

< 5%

Material Type: No. 4 Ballast (2")

Test Value

N/A

ASTM C 136

> 2.65

< 2 %

Gradation

> 98 pcf

Note 1: Materials having gradations containing particles retained on the 1 inch sieve shall be tested by ASTM

C535. Materials having gradations with 100% passing the 1 inch sieve shall be tested by ASTM C131.

2.1.2 Item 2 – Aggregate Base Course

Material: 1 1/2” Base Course Delivery Location(s): Zones 1, 2, 3, & 4 Guaranteed Minimum Qty: 24 Short Tons Contract Maximum Qty: 100,000 Short Tons

2.1.2.1 Specifications:

The base course material shall be in accordance with Section 703.01 of the Oklahoma Department of Transportation’s 2009 Standard Specification for Highway Construction for “Type A” base course and as additionally specified in the subsequent Sections 1 and 2. The following specifications are not all-inclusive and are intended to identify key information along with more stringent specifications meant to supersede the ODOT 2009 Standard Specifications for Highway Construction as applicable.

a. The base course shall be a mixture of course and fine crushed stone composed of hard, dense, durable, angular particles or fragments, free of deleterious materials such as, but not limited to, vegetation, clay, sand, silt, and friable particles.

b. The base course material shall be of a single, homogenous source. Mixing of multiple material sources shall not be allowed.

c. The course aggregate shall be identified as material retained on a No. 10 sieve and majorly constituted of limestone. The fine aggregate shall be primarily made of stone dust from limestone material due to its cementing properties. Fine aggregates consisting of sand, silt, or clay shall not be permitted.

d. Ensure at least forty(40) percent of the Type A mixture retained on the No. 4 sieve contained uniformly graded, mechanically crushed particles with at least one fractured face.

e. Ensure the course aggregate retained in the 3/8” sieve of the completed mixture has no more than fifty(50) percent wear IAW the Los Angeles Abrasion Test IAW AASHTO T96.

f. Ensure the aggregate has an Aggregate Durability Index of at least 40 IAW AASHTO T210.

g. The material supplier shall provide submittals of product data and all test data specified in Table 2.1.2.1 for the proposed material showing conformance to the specifications herein. The product data shall identify the type of course and fine stone material constituting the material mixture.

Table 2.1.2.1

Analysis Type Test Type

Sampling

AASHTO T 2

AASHTO T 87

Sieve Size % Passing

1 1/2" 100

3/4" 40-100

3/8" 30-75

No. 4 25-60

No. 10 20-43

No. 40 8-26

AASHTO T 11 (See Note 1) No. 200 4-12

Plastic Limit & Plasticity Index AASHTO T 90

Liquid Limit AASHTO T 89

Fractured Faces (total) OHD L-18

Maximum Density AASHTO T 180, Method D

Aggregate Durabilty Index AASHTO T 210

Los Angeles Abrasion, wear AASHTO T 96

Sodium Sulfate Soundness ASTM C 88

Magnesium Carbonate Soundness ASTM C 25

Soft Particles OHD L-38

≤ 25

< 28%

≥ 98%

> 98 pcf

≤ 50%

< 5%

< 0.5%

≥ 40

Material Type: 1 1/2" Base Course

Test Value

N/A

Gradation AASHTO T 27

PI ≤ 6

Note 1: Ensure the material passing the No. 200 sieve comprises no greater than two-thirds of the quantity of material passing the No. 40 sieve.

2.1.3 Item 3 – Screenings

Material: Screenings Delivery Location(s): Zone 1 Guaranteed Minimum Qty: 24 Short Tons Contract Maximum Qty: 25,000 Short Tons

2.1.3.1 Specifications:

The screenings material shall be consistent with Class C bedding material and in accordance with specifications in the subsequent Sections 1 and 2.

a. The screenings shall be fine crushed stone composed of hard, dense, durable, angular particles or fragments of primarily limestone material, free of deleterious materials such as, but not limited to, vegetation, clay, sand, silt, and friable particles.

b. The base course material shall be of a single, homogenous source. Mixing of multiple material sources shall not be allowed.

c. The material supplier shall provide submittals of product data and all test data specified in Table 2.1.3.1 for the proposed material showing conformance to the specifications herein. The product data shall identify the type of stone constituting the material mixture.

Table 2.1.3.1

Analysis Type Test Type

Sieve Size % Passing

3/8" 100

No. 200 0-10

Fractured Faces (total) OHD L-18

Density AASHTO T 180, Method D

Los Angeles Abrasion, wear AASHTO T 96

Sodium Sulfate Soundness ASTM C 88

Magnesium Carbonate Soundness ASTM C 25 < 28%

AASHTO T 27

Gradation

≥ 98%

> 98 pcf

≤ 50%

< 5%

Material Type: Screenings

Test Value

2.2 Storage, Handling, & Delivery

2.2.1 Storage & Handling

It is the responsibility of the material provider to store and handle materials to preserve their quality, gradation, and fitness for work. Transport bulk materials in vehicles constructed to prevent loss or segregation after loading and measuring.

Store materials to facilitate prompt inspection and testing. Aggregates that have become segregated or mixed with earth or other foreign material shall be deemed unacceptable and subject to rejection and replacement by the Contractor at no additional expense to the Government.

2.2.2 Delivery

It is the responsibility of the shipper to ensure shipment is scheduled for delivery with the Contracting Officer at least two

(2) business days prior and that any personnel requiring access to the installation have submitted the documentation for vetting within the required timeframe and are approved by the Government for entry prior to arrival. Consult the provided contract documents for additional requirements and details. Failure to do so can result in denial of entry to the installation, delay of shipment, and possible penalty to the shipper and shall result in no additional cost to the Government. The shipment shall be checked-in at the MCAAP receiving warehouse and then transported by the shipper to a location on-post selected by the government. The Contracting Officer or their representative shall inspect all materials for acceptance once on the installation. See Section 2.3 for further details outlining the basis of acceptance.

2.2.3 Zone Locations

The approximate round trip distance to each zone beginning and ending at the main installation entrance are as follows.

Transport vehicles shall be escorted to each zone and directed where to deposit material by Government personnel.

Zone 1 – 6.0 miles Zone 2 – 12.0 miles Zone 3 – 18.0 miles Zone 4 – 16.0 miles

2.3 Acceptance

2.3.1 Basis of Acceptance

The contractor shall provide material meeting the quality requirements of this contract. The contractor shall submit to the

Government the proposed source of materials and documentation required by this contract for approval at the time of bidding. The contractor many not change sources without the written approval of the Government.

2.3.2 Samples, Tests, & Certifications

Materials provided shall be uniform in character and meet the specifications and required tolerances of this contract. The Government may inspect, conditionally accept, and test all delivered materials to assure compliance prior to final acceptance and payment. The Government may sample and test the material at any time before or after delivery, to include inspecting and obtaining samples of material at the manufacturing plant or source to be tested for compliance.

Material that does not meet the contract requirements or specifications based on inspection and/or testing results may be rejected and shall be replaced by the contractor at no additional cost to the Government.