perkEpave_CSI_SPECIFICATION.pdf
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- Attached to
- Porous Flexible Pavement (Bid Discount)
- Solicitation number
- 26-P-00383
- Issued by
- Hillsborough County, Florida
About this file
This is a CSI specification document for porous flexible paving systems prepared for Hillsborough County, Florida, in support of a solicitation for porous flexible pavement installation at the Riverfront Recreation Center, 1301 N Boulevard, Tampa, Florida 33607. The project encompasses mobilization, excavation, haul-off, base gravel placement, and porous flexible pavement installation covering 1,600 square feet. The specification establishes performance requirements for a porous flexible paving system composed of recycled rubber aggregate bound with moisture-cured polyurethane binder, with minimum thickness of 1.5 to 2 inches for pedestrian areas and 2 inches for light vehicular applications. The system must achieve a minimum infiltration rate of 800 inches per hour per ASTM C1701, a slip resistance coefficient of friction of 0.7 dry per ASTM D2047, and comply with ADA Accessibility Guidelines. The basis of design references perkEpave Porous Flexible Paving System, with approved equal manufacturers permitted. Bids are due July 6, 2026. Site preparation requires subgrade compaction to 95 percent Modified Proctor density with positive drainage grading, installation of 3 to 4 inches of ASTM Clean No. 57 aggregate base, and completion with minimum 24 to 48 hours cure time for pedestrian traffic and 72 hours before vehicular loading.
The specification requires submittal of manufacturer qualifications demonstrating minimum five years' experience, installer qualifications with manufacturer training and supervision on initial projects, product data, shop drawings, samples, and independent laboratory test reports verifying permeability and physical properties. Installation is prohibited when ambient temperatures are below 40 degrees Fahrenheit, surfaces are frozen, or rain is forecast within the curing period. Field quality control includes verification of surface thickness and immediate repair of defects. The solicitation has been designated with a bid discount incentive, potentially offering a price advantage or evaluation modifier for qualifying responsive bids. Payment and invoicing requirements are tied to Small Local Business Enterprise (SLBE) and ADA compliance frameworks. OSHA material safety data requirements apply to installation work. The specification references a Tampa Cloud Hosting Policy for any digital submissions or documentation systems.
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SECTION 32 12 43 — POROUS FLEXIBLE PAVING
PART 1 — GENERAL
1.01 SUMMARY
A. Section Includes:
1. Porous flexible paving system consisting of recycled rubber aggregate bound with polyurethane binder installed over a prepared aggregate base.
2. Pedestrian paths, trails, plazas, tree surrounds, golf cart paths, pool decks, playground safety surface, and light-duty vehicular areas where indicated.
1.02 REFERENCES
Comply with latest editions of:
- ASTM C1701 — Infiltration Rate
- ASTM D2859 — Flammability
- ASTM C39 — Compressive Strength
- ASTM D2047 — Slip Resistance
- ASTM F1292 — Shock Attenuation
- ADA Accessibility Guidelines (ADAAG)
1.03 SUBMITTALS
A. Product Data: Manufacturer specifications, installation instructions, and maintenance procedures.
B. Shop Drawings: Layout, thickness, edge restraints, drainage details.
C. Samples: Minimum 4 × 4-inch sample showing color and texture.
D. Test Reports: Independent laboratory verification of permeability and physical properties.
E. Qualifications: Installer trained/supervised by manufacturer on initial project.
1.04 QUALITY ASSURANCE
A. Manufacturer Qualifications: Minimum 5 years’ experience producing porous flexible paving systems.
B. Installer Qualifications: Approved through remote webinar and onsite installation training/supervision by manufacturer on initial project.
1.05 DELIVERY, STORAGE, AND HANDLING
Deliver materials in original unopened containers. Protect from moisture, freezing, and contamination.
1.06 PROJECT CONDITIONS
Do not install when:
- Ambient temperature below 40°F (4°C)
- Surface is frozen
- Rain is forecast within curing period
PART 2 — PRODUCTS
2.01 MANUFACTURERS
Basis of Design:
perkEpave® Porous Flexible Paving System perkEpave.com (215) 316-6383
Acceptable manufacturers:
- perkEpave®
- Approved equal meeting performance criteria
2.02 MATERIALS
A. Porous Flexible Paving Surface:
1. Composition:
- Recycled rubber aggregate
- Moisture-cured polyurethane binder
- Washed and kiln dried stone aggregate
2. Thickness:
- Pedestrian: 1.5–2 inches
- Light vehicular: 2 inches
- As indicated on drawings
3. Permeability:
Minimum 800 inches/hour infiltration rate per ASTM C1701.
4. Slip Resistance:
Minimum coefficient of friction 0.7 dry.
5. Color:
As selected by Architect from manufacturer’s standard range.
2.03 BASE MATERIAL
A. Aggregate Base:
- ASTM Clean No. 57
- Minimum 3-4 inches thickness, depending on loading conditions and stormwater requirements
B. Optional Stabilization Layer:
- Geotextile separator fabric where subgrade conditions require.
2.04 EDGE RESTRAINTS
Provide temporary forms or permanent aluminum edge restraints when required.
PART 3 — EXECUTION
3.01 EXAMINATION
Verify subgrade preparation and drainage conditions prior to installation. Do not proceed until unsatisfactory conditions are corrected.
3.02 PREPARATION
A. Subgrade:
- Compact to 95% Modified Proctor (ASTM D1557)
- Grade to allow positive drainage
- Remove unsuitable soils
B. Base Installation:
- Install aggregate base in lifts
- Compact and level
- Maintain permeability
3.03 INSTALLATION
A. Mix rubber aggregate and polyurethane binder per manufacturer ratios.
B. Place material uniformly to specified thickness.
C. Trowel finish to smooth, even surface with no voids.
3.04 CURING
Allow minimum 24–48 hours cure time prior to pedestrian traffic.
Allow 72 hours before vehicular loading.
3.05 FIELD QUALITY CONTROL
A. Verify surface thickness
B. Repair defects immediately.
3.06 PROTECTION
Protect installed surface from:
- Construction traffic
- Contamination
- Standing water during curing
3.07 CLEANING
Remove debris and leave surface clean upon completion.
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