Attachment_1_to_140P1218Q0087_Fan_Trail_Tread_PorousPavement_Specifications.pdf

Rocky Mountain National Park

1000 US Highway 36, Estes Park, Colorado 80517

Specifications for Bound Aggregate Porous Pavement Justification: Rocky Mountain National Park Trail Crew is seeking to purchase a bound aggregate porous pavement product for use as a hardened trail surface on the park’s ABA standard trails. The bound aggregate porous pavement product shall be mixed on-site and poured-in-place by Trail Crew employees.

Item: Bound aggregate porous pavement

Specifications:

Aggregate Material:

- Material shall be clean, gradated and dried to stone material specification.

- Stone Material Specification:

• Stone Type: Igneous Rock, angular to sub-angular or rounded, 6.2 or higher on Moh’s hardness scale, 0-<1% absorption

• Stone particle Size: 100% passing 3/8” screen and retained on #8 screen, or passing ¼” and retained on #12 screen. 1% fines maximum.

• Material shall be bagged to meet moisture specification of 0-10%. Bagged aggregate with 0.1% average moisture or more will be rejected.

Binder:

- High strength polyurethane elastomeric binder shall be specifically formulated for porous pavement applications.

- Binder shall consist of polyurethane ISO and Resin materials (>50% Renewable).

Porous Pavement:

- Tensile Strength (per ASTM D412and D638) ………. 2500 psi - 7 days

- Tear Strength (per ASTM D624) ……… 600 psi - 7 days

- Flexural Modulus (resistance to bending) ……… 75,000 psi

- Flexural Strength (per ASTM C78) ……… 500 psi

- Elongation at Yield (per ASTM D412 and D368) ……… 50% - 28 days

- Compressive Strength (per ASTM C39 ……… 800 psi – 7days; ,160 psi – 28 days

- Infiltration Rate ………. 1,600 – 1,750 in/hr

- Sustainable Porosity ………. 0.39 – 0.47

- Run Off Coefficient ……… 0.24

Quality Assurance: Bound aggregate porous pavement product shall contribute to the U.S.

Green Building Council (USGBC) Leadership in Energy and Environmental Design (LEED) green building credits in the following categories:

- Reduced Site Disturbance through creation of permeable surfaces and reduction of stormwater detention facilities, resulting in less construction impact on an area basis and resulting in less potential particulate runoff and impact to the surrounding land and watercourses.

- Stormwater management through use of permeable surfaces that provide stormwater infiltration and reduce stormwater runoff.

- Reduced Heat Island Effect through creation of a cooler surface.

- Recycled Material Content through use of materials with recycled content to reduce impacts form extraction and processing of new virgin materials.

Quantity: This purchase requisition is for the purchase of porous pavement trail tread material to cover approximately 11,700 square feet at 1.5in depth (45 cubic yards).

Delivery Location:

Product will be delivered to the following address:

Rocky Mountain National Park

Trail Shop

1000 US Highway 36

Estes Park, CO 80517

Materials shall be deposited in the Trails Yard (junction of Sundance Circle and Pika Lane) in Estes Park, CO. Please contact the trails shop at (970) 586-1248 or (970) 586-1279 at least two business days prior to delivery.

Delivery:

Delivery should be made during regular operations periods and coordinated through the vendor and Trails Foreman.

Operating Periods: Monday-Thursday, 0700-1730 MST (Excluding Federal Holidays)

No deliveries should be made outside of the regular operational periods.

Quotation for Bid:

Quotes should be made for the bound aggregate porous pavement product. Any additional costs (such as delivery costs) should be itemized.

Additional: References and proof of product may be required prior to award. Successful bidder must be registered at the following website before an award can be made: www.SAM.gov.

http://www.sam.gov/