MasterFormat: 2014
Download this Porous Pavement System Specification for   WORD | WP | RTF | TEXT
Find over 500 more construction specifications | Arcat.com
         
Presto Geosystems Porous Pavement System
 
         
SECTION 32 14 43
 
         
POROUS PAVEMENT SYSTEM
 
         
Copyright 2010 - 2018 ARCAT, Inc. - All rights reserved

          ** NOTE TO SPECIFIER ** Presto Geosystems; porous pavement system.
.
** NOTE TO SPECIFIER ** This section is based on the products of Presto Geosystems, which is located at:
670 N. Perkins St. P. O. Box 2399
Appleton, WI 54912-2399
Toll Free Tel: 800-548-3424
Tel: 920-736-1336
Fax: 920-738-1222
Email: request info
Web: http://www.prestogeo.com
[ Click Here ] for additional information.
PRESTO offers a full range of porous pavement needs with the Geoblock and GeoPave®systems and challenging soil and surface stabilization problems with the Geoweb® and GeoTerra® systems. The systems can be used in a variety of landscape applications meeting a wide range of performance and aesthetic requirements and provide economic and sustainable solutions in many areas of environmental design: permeable pavements, slope, channel and shoreline protection, vegetated earth retention and surface protection applications. Presto offers complimentary project evaluation service.
This section covers the Presto GeoPave® porous pavement system. The system provides vehicular and pedestrian load support over a permeable aggregate or grassed surface while promoting natural storm water infiltration and, if vegetated, protection to grass from the harmful effects of traffic.
The major components of the complete system are the GeoPave® porous pavement unit, the porous aggregate base, if required, the porous aggregate, or an aggregate/topsoil engineered infill and selected vegetation (where applicable).
Consult Presto Geosystems for assistance in editing this section for the specific application.
 
          PART 1GENERAL
 
          1.1SECTION INCLUDES
          ** NOTE TO SPECIFIER ** Delete any paragraphs below not applicable to project.
 
          A.Porous Paving System.
 
          1.2RELATED SECTIONS
          ** NOTE TO SPECIFIER ** Delete sections below not relevant to this project; add others as required.
 
          A.Section 31 20 00 - Earth Moving.
 
          B.Section 33 46 13.13 - Foundation Drainage Piping.
 
          C.Section 32 10 00 - Bases, Ballasts, and Paving.
 
          D.Section 32 39 33 - Artificial Rock Fabrications.
 
          E.Section 32 90 00 - Planting.
 
          F.Section 32 92 13 - Hydro-Mulching.
 
          1.3REFERENCES
          ** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
          A.CBR - California Bearing Ratio Method.
 
          B.ASTM D1693 - Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics.
 
          C.AASHTO - Chapter 5, Aggregate Specifications and Requirements.
 
          D.U.S. Green Building Council, LEED Building Design and Construction (BD+C) Version 4.0 Rating System. (LEED v4.0)
 
          1.4SYSTEM DESCRIPTION
          ** NOTE TO SPECIFIER ** Edit and delete portions below not relevant to this project; add others as required. Vehicles should be limited to vehicles with a maximum tire pressure of 90 psi.
 
          A.GeoPave porous pavement system creates a structural framework to stabilize open-graded aggregate or an aggregate/topsoil engineered infill for vegetated surfaces.
 
          B.Increased bearing strength and a permeable load support structure for vehicular or pedestrian traffic loading requirements using porous aggregate or structural infill material.
 
          C.Major Components of the Complete System include:
          1.GeoPave units.
          2.GeoPave U-CLIP connectors.
          3.Porous aggregate or aggregate/topsoil engineered base, if required.
          4.Porous aggregate or aggregate/topsoil engineered infill.
          5.GeoPave delineators.
          ** NOTE TO SPECIFIER ** Select one of the two following paragraphs for aggregate or vegetated surface and delete the one not required.
 
          D.Aggregate surface: GeoPave porous pavement units, aggregate infill and aggregate base support materials to support imposed loading.
 
          E.Vegetated surface: GeoPave porous pavement unit, aggregate/topsoil engineered infill and aggregate/topsoil engineered base support soil to support imposed loading and contribute to vegetation support.
 
          1.5SUBMITTALS
 
          A.Submit under provisions of Section 01 30 00 - Administrative Requirements.
 
          B.Product Data: Submit manufacturer's product data including printed installation instructions and methods for maintaining installed products.
 
          C.Shop Drawings: Submit manufacturer's shop drawings including laying pattern and anchoring.
          ** NOTE TO SPECIFIER ** Delete the following paragraphs if LEED is not applicable.
 
          D.LEED Submittals: Provide documentation of how the requirements of Credit will be met:
          1.List of proposed materials with recycled content. Indicate post-consumer recycled content and pre-consumer recycled content for each product having recycled content.
          2.Product data and certification letter indicating percentages by weight of post-consumer and pre-consumer recycled content for products having recycled content.
 
          E.Certificates:
          1.Product certificates signed by the manufacturer certifying material compliance of polyethylene used to make GeoPave porous paving units.
          2.ISO Certification certifying manufacturer's quality management system is currently registered to ISO 9001:2015 quality standards.
          ** NOTE TO SPECIFIER ** Delete installer and Manufacturer's field representative qualifications if not required
          3.Qualifications certifying installer experience in the installation of Geopave Porous Pavement Systems.
          4.Qualifications of Manufacturer's field representative certifying field representative experience in the installation of Geopave Porous Pavement Systems.
 
          F.Manufacturers Warranty Certificate.
 
          1.6QUALITY ASSURANCE
 
          A.Porous Pavement System shall be provided from a single Manufacturer for the entire project.
 
          B.Manufacturer's ISO Certification: Manufacturer shall maintain ISO Certification certifying manufacturer's quality management system for its porous paving system is currently registered to ISO 9001:2015 quality standards.
 
          C.Manufacturer shall have a minimum of 20 years experience producing porous pavement systems.
 
          D.Manufacturer's Field Representative Qualifications: Manufacturer's field representative shall have a minimum of 5 years experience in the installation of the specified products.
          ** NOTE TO SPECIFIER ** Retain subparagraphs below if required to suit project. Delete if not required.
 
          E.Installer Qualifications: Experienced in performing work of this section that has specialized in installation of work similar to that required for this project.
          ** NOTE TO SPECIFIER ** Retain subparagraphs below if required to suit project. Delete if not required. Coordinate with Field Quality Control specified in the Section.
 
          F.Preinstallation Meeting: Convene a meeting a minimum of two weeks prior to start of porous paving system to verify project requirements, subbase conditions, manufacturer's installation instructions and coordination with other work. Require attendance of all parties directly affecting work of this section, including the Contractor, Architect, installer, and manufacturer's field representative. Comply with Division 1 requirements.
 
          1.7DELIVERY, STORAGE, AND HANDLING
 
          A.Delivery: Deliver materials to site in manufacturer's original, unopened containers and packaging, with labels clearly identifying product name and manufacturer.
 
          B.Storage: Store materials in accordance with manufacturer's instructions. Protect all materials from damage and out of direct sunlight.
 
          C.Handling: Protect materials during handling and installation to prevent damage.
 
          1.8WARRANTY
          ** NOTE TO SPECIFIER ** Contact the Porous Paving System manufacturer for additional details.
 
          A.Warranty: Manufacturer's ten year limited warranty.
 
          PART 2PRODUCTS
 
          2.1MANUFACTURERS
 
          A.Acceptable Manufacturer: Presto Geosystems, which is located at: 670 N. Perkins St. P. O. Box 2399; Appleton, WI 54912-2399; Toll Free Tel: 800-548-3424; Tel: 920-736-1336; Fax: 920-738-1222; Email: request info; Web: http://www.prestogeo.com
 
          B.Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
          ** NOTE TO SPECIFIER ** Delete paragraph above or below; coordinate with Division 1 requirements.
 
          C.Substitutions: Not permitted.
 
          2.2POROUS PAVING SYSTEM COMPONENTS
          ** NOTE TO SPECIFIER ** GeoPave with aggregate or an aggregate/topsoil engineered infill provides a permeable, stabilized surface for vehicular and pedestrian load support.
 
          A.GeoPave Units:
          1.Materials:
          a.Polyethylene: Up to 100 percent recycled materials.
          b.Color: Ranges from dark shades of gray to black
          c.Color Uniformity: Uniform color throughout all units in pallet.
          d.Chemical Resistance: Superior.
          e.Carbon Black for Ultraviolet Light Stabilization: 1.5 to 2.0 percent by weight through addition of a carrier in accordance with ASTM D 1693.
          2.Performance Properties:
          a.Empty Unit Minimum Crush Strength at 70 degrees F (21 degrees C): 175 psi (1,202 kPa).
          b.Aggregate or Aggregate/Topsoil Infilled Unit Minimum Crush Strength at 70 degrees F (21 degrees C): 5,160 psi (35,625 kPa).
          c.Empty Unit Wall Compressive Strength (Simulated Loaded Tire Area): 175 psi (1,202 kPa).
          1)Test Procedure: Full single unit loaded to failure via 9 inches (228.6 mm) flat plate.
          d.Aggregate or Aggregate/Topsoil Filled Unit Wall Compressive Strength (Simulated Tire Area Loaded): 138,240 pound-force (615 kN).
          1)Test Procedure: Full single unit loaded to failure via 9 inches (228.6 mm) flat plate.
          3.Dimensions:
          a.Nominal Width by Length: 20 inches (0.50 m).
          b.Nominal Length: 40 inches (1.0 meter).
          c.Nominal Depth: 2.0 inches (50 mm).
          d.Nominal Coverage Area: 5.38 square feet (0.50 sm).
          1)Cell Size (small cell): 3.25 inches by 3.25 inches (83 mm by 83 mm).
          2)Cell Size (large cell): 3.25 inches by 6.50 inches (83 mm by 165 mm).
          e.Nominal Weight per Unit: 7.6 pounds (3.4 kg).
          f.Top of Panel Open Area: 90.5 percent.
          g.Bottom of Panel Open Area: 32.6 percent.
          h.Bottom Mesh Openings: .25 in by .25 in (6.35 mm by 6.35 mm).
 
          B.GeoPave U-Clip Connectors: 12 gauge G90 zinc plated steel locking clip with internal barbs to connect two adjacent GEOPAVE units.
          ** NOTE TO SPECIFIER ** Delete GeoPave delineator if not required
 
          C.GeoPave SNAP Delineators: Fabricated of UV-resistant polymer with a diamond plate, non-skid pattern on the surface. SNAP Delineators are connected with locking tabs designed to fit in the GeoPave porous pavement square or rectangular cells.
          ** NOTE TO SPECIFIER ** Edit the following for infill type, aggregate infill or an aggregate/topsoil engineering infill for vegetated systems.
 
          D.GeoPave Infill Material:
          1.Aggregate Infill: A well-graded 0.375 inch to 0.5 inch (10 mm to 13 mm) crushed angular stone with a fine content less than 5 percent.
          2.Aggregate/topsoil Engineered Infill: A homogenous blended mixture that will promote vegetative growth and provide the required structural support. Mixture shall consist of:
          a.Clear-stone/crushed rock with an AASHTO #5 or similar designation with a particle range from 0.375 inch to 0.5 inch (10 mm to 13 mm) and a percentage void-space of at least 30 percent.
          b.Pulverized Topsoil: Pulverized topsoil equaling 33 percent of the total volume, added and blended to produce a homogenous mixture prior to placement.
          ** NOTE TO SPECIFIER ** Coordinate with the following as required to suit loading conditions required for the project. Contact the Porous Paving System manufacturer for additional requirements and recommendations.
 
          2.3RELATED PRODUCTS
 
          A.Base Course: Coordinate with base course materials specified in Section 32 10 00 - Bases, Ballasts, and Paving to the depths specified.
 
          B.Vegetated Surface: Coordinate with vegetated surface materials specified in Section 32 92 13 - Hydro-Mulching.
 
          PART 3EXECUTION
 
          3.1EXAMINATION
 
          A.Before beginning installation, verify site conditions are as indicated on the Drawings. Notify the Architect/Engineer if site conditions are not acceptable. Do not begin preparation or installation until unacceptable conditions have been corrected.
 
          B.Ensure that adjacent hard-surfaced paving work is completed before installing porous pavement system.
 
          3.2PREPARATION
 
          A.Subgrade:
          ** NOTE TO SPECIFIER ** Coordinate paragraphs below with earthwork provided by others. Proper subgrade preparation is required to enable the units to interlock properly and remain stationary after installation.
          1.Prepare subgrade as specified in Section 32 10 00 - Bases, Ballasts, and Paving. Verify subgrade in accordance with the Drawings and the porous paving system manufacturer's instructions.
          2.Ensure foundation soil meets minimum strength requirements through proof rolling or other conventional method and is approved by the Architect/Engineer. If unacceptable foundation soils are encountered, excavate and replace with suitable quality material as directed by the Architect/Engineer.
          ** NOTE TO SPECIFIER ** Delete the following paragraph if a geotextile separation layer is not required
          3.Install geotextile separation layer on prepared surfaces ensuring required overlaps are maintained and outer edges of the geotextile are buried in accordance with the Manufacturer's recommendations and subgrade CBR (California Bearing Ratio)
          ** NOTE TO SPECIFIER ** The strength of the porous pavement system is determined, in part, by the support provided by the aggregate or aggregate/topsoil engineered base. Consult Presto Geosystems' GeoPave® Design and Construction Overview for base details and thickness recommendations. Design the base to ensure stability of the open graded material.
A minimum of 2 inches (50 mm) of base material is generally recommended for drainage even if not required by design for load support. Additional base depth may be added if required over a low-permeable base or to function as a storm water detention/retention layer.
For vegetated systems, proper aggregate/topsoil engineered base materials will promote vegetative growth and provide required structural support. If the topsoil is not present within the engineered base, grass growth may be impaired. Vegetated surfaces should be designed for infrequent or occasional traffic with a maximum H-10 loading
 
          B.Base Preparation:
          ** NOTE TO SPECIFIER ** Coordinate paragraphs below with base installation provided by others. The strength of the porous pavement system is determined, in part, by the support provided by the engineered base. Consult Presto Products for engineered base details and thickness recommendations.
          1.Install Base as specified in Section 32 10 00 - Bases, Ballasts, and Paving. Verify base is installed in accordance with porous paving system manufacturer's instructions.
          ** NOTE TO SPECIFIER ** Coordinate paragraphs below with base installation provided by others. Delete subdrain paragraph if not applicable.
          2.Coordinate base installation and preparation with subdrains specified in Section 33 46 13.13 - Foundation Drainage Piping.
          3.If required, place a geotextile separation layer between the natural ground and the ' engineered base.
          ** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one that is not applicable.
          4.Place base to the minimum depth of ____ inches (__ mm) as indicated on the Drawings.
          5.Place base to the minimum depth indicated on the Drawings.
          ** NOTE TO SPECIFIER ** Include the following paragraphs for aggregate systems. Delete for vegetated systems.
          6.Aggregate Systems:
          a.Base shall be an open graded crushed aggregate with a particle range from 0.375 in to 1.0 in (10 mm to 25 mm) a fine content less than 5 percent.
          b.Compact the aggregate to the Engineer's specifications. After compaction, the surface shall be uniform with no protrusions from larger aggregate particle.
          c.Constrain the edges of the base appropriately to prevent movement.
          ** NOTE TO SPECIFIER ** Include the following paragraphs for vegetated systems. Coordinate with materials specified in Section 32 92 13 - Hydro-Mulching.
          7.Vegetated Systems:
          a.Place engineered base of open graded crushed aggregate homogenously blended with pulverized topsoil and a void component generally containing air and/or water.
          b.Ensure aggregate portion of base is free from fines and has 30 percent or more void-space when compacted. Particle size should range in size from 0.375 to 1.0 inch (10 to 25 mm) with a D50 of 0.5 inch (13 mm).
          c.Add and blend topsoil before placement equal to void percentage in aggregate.
          d.Pulverized topsoil portion shall equal 33 percent of the total volume and be added and blended to produce a homogenous mixture prior to placement.
          e.Compact the mixture to the Architect/Engineer's specifications.
          f.Constrain the edges of the base appropriately to prevent movement.
 
          3.3INSTALLATION
 
          A.Install and infill units in accordance with porous paving system manufacturer's instructions.
          1.Verify that all adjacent hard-surfaced paving work is completed before installing porous pavement system.
          2.Geopave units are capable of bearing load immediately after placement and once fully connected with UCLIPs. GeoPave porous pavement units can be driven on with no infill necessary. No barriers are required to prevent passenger cars and trucks or construction equipment from driving on the GeoPave porous pavement units during installation
 
          B.Installing Units:
          1.Place units with mesh bottom to ground.
          2.Lay units is the following pattern:
          ** NOTE TO SPECIFIER ** Select bond pattern required and delete paragraphs not required.
          a.Install unit pattern as indicated on the Drawings.
          b.Offset pattern for pedestrian access lane applications.
          c.Standard running bond bricklayer pattern for pedestrian and one direction access lane applications. Place units with long direction of unit perpendicular to direction of traffic.
          d.Herringbone pattern for large area with random traffic flow and placed with long direction perpendicular to traffic. Develop staggered herringbone pattern by using half units made by field cutting a full unit.
          3.Field cut units to custom fit contours and around obstructions. Edge restraints are required to create a closed "cell" that can be infilled. Alternatively offset the GeoPave units such that the coverage approximates the corner or curve feature. Edge restraints are required.
          4.Abut adjoining units to form the specified laying pattern. Units shall not protrude above desired surface elevation.
          5.Secure adjoining units together using the U-CLIP connection device. A total of 12 U-CLIPS are required for each unit. U-CLIPS shall be set in place by hammer in the half-wall locations such that adjacent sections have horizontally level profiles. U-CLIP locations are four on each unit long side and two on each unit short side.
          6.Place first row of GeoPave porous pavement units against a single stationary edge, when available. If the units are placed between two perpendicular stationary edges, allow for potential thermal expansion of the units by keeping the units away from the stationary edge.
          ** NOTE TO SPECIFIER ** Anchoring may be required when placing the Geopave units on a slope of 5-10 percent maximum. Stake length is generally 12 inches (305 mm) or longer depending on the slope, subgrade CBR and loading requirement. Delete paragraph if not required.
 
          C.Anchoring of Units:
          1.Place anchors in accordance with the manufacturer's recommendations.
          2.Anchor units in-place after installation of all the units within the defined area.
          3.Anchor units with 0.5 inch (13 mm) #4 rebar to prevent movement of the units.
          4.Anchor length shall be as indicated on the Drawings.
          5.Drive the anchors through the GeoPave cell-wall vent holes either in the middle of the GeoPave units or along the perimeter as required.
          ** NOTE TO SPECIFIER ** Delineators may be required by local agencies for visual identification of parking spaces, drive lanes, center lines or other delineation. Delete the following items if delineation is not required.
 
          D.GeoPave SNAP Delineators:
          1.Insert GeoPave SNAP delineators into the GeoPave unit's square or rectangular cells to mark delineation.
          2.GeoPave SNAP delineators are placed after installation of the GeoPave porous pavement units and before installation of the infill material.
          a.If the SNAP delineators are desired after infill placement, infill may be removed with a vacuum to allow insertion of delineators at select locations.
          3.Place density of the GeoPave SNAP delineators to meet visual and local agency requirements.
          ** NOTE TO SPECIFIER ** Select the required Aggregate and/or Vegetated System infill system from the following paragraphs as required for the project. If both systems are required indicate the location of each on the Drawings.
 
          E.Infilling Units - Aggregate Systems:
          1.Infill units with specified aggregate fill.
          a.Runoff Coefficient is dependent upon the actual site conditions and GeoPave porous pavement system infill material.
          b.For aggregate areas, typical run-off coefficients range from 0 to 0.15 for sandy and clay soils, respectively.
          c.The actual run-off coefficient shall be based on site conditions, engineering judgment and the integrated effect of the drainage area.
          2.Spread aggregate infill uniformly over the units with a skid steer, small tractor or small loader. Overfill the cells to allow for settlement of the infill. Overfill height shall be determined by the size of the infill material.
          3.Hand rake the aggregate to assure that the aggregate fill is at the top of the cell walls.
 
          F.Infilling Units - Vegetated Systems:
          1.Infill units with specified aggregate/topsoil engineered infill.
          a.Runoff Coefficient is dependent upon the actual site conditions and GeoPave porous pavement system infill material.
          b.Typical run-off coefficients range from 0.10 to 0.35 for sandy and clay soils, respectively.
          c.Actual run-off coefficient shall be based on site conditions, engineering judgment and the integrated effect of the drainage area.
          2.Spread aggregate/topsoil engineered infill uniformly over the units to a level even with the top of the cell wall.
          3.If final vegetation is sod, under-fill the GeoPave units by 1.0 inches (25 mm) to allow room to seat or press sod into GeoPave units.
          4.Use spreading methods to prevent over-compaction of cell infill.
          5.Seed as specified in Section 32 92 13 - Hydro-Mulching.
 
          3.4ABOVE GROUND DELINEATION
 
          A.Delineate the installed GeoPave system with the following method:
          1.Above-ground curbing.
          2.Shrubbery or vegetation.
          3.Perimeter lighting.
          ** NOTE TO SPECIFIER ** Select the one following paragraph for Vegetated Systems as required. Delete if not required.
 
          3.5GRASSING
 
          A.Finish in accordance with manufacturer's instructions.
          ** NOTE TO SPECIFIER ** Select seeding or sod from the following paragraphs. Delete the paragraphs not required. Specify sod for areas where immediate use is desired. Young sod that is free from netting materials is recommended. Mature sod with a more developed root system and sod with netting may be difficult to press and cut into the cells.
 
          B.Seeding: As specified in Section 32 92 13 - Hydro-Mulching
          1.Follow good seeding, fertilizing, and watering procedures for turf establishment based on regional practices.
          2.Increase watering frequency when free draining base materials are used.
 
          C.Sod: As specified in Section 32 92 13 - Hydro-Mulching.
          1.Ensure units are under-filled to allow room to seat the sod.
          2.Install young sod free from netting materials.
          3.Press sod into partially emptied cells using a roller or other suitable equipment and follow normal watering procedures.
 
          3.6MAINTENANCE
          ** NOTE TO SPECIFIER ** Select one or more of the following two paragraphs as applicable. Delete if not applicable. Normal turf care procedures should be followed, including de-thatching and aerating. Some equipment may slightly scar or cut the Geoblock wall structure during some operations, but will not affect overall structural integrity of the system. Coordinate with Section 32 92 13 - Hydro-Mulching.
 
          A.Aggregate Surfaces: Maintain a 0.5 in (13 mm) surcharge of aggregate as a surface wear course. Surface should be inspected from time to time to identify signs of slight cell infill loss.
 
          B.Lawn Surfaces: Maintain grass in accordance with manufacturer's instructions and as specified in Section 32 92 13 - Hydro-Mulching.
 
          C.Snow Removal: Remove snow using one of the following basic procedures:
          1.Keep a metal edged plow blade a minimum of 1.0 inch (25 mm) above the surface during plowing operations, or
          2.Use a plow blade with a flexible rubber edge, or
          3.Use a plow blade with skids on the lower outside corners so the plow blade does not come in contact with the units.
          ** NOTE TO SPECIFIER ** Edit the following paragraph to suit the level of Field Quality Control required. Coordinated with the requirements of Section 01 45 16.13 - Contractor Quality Control. Delete entirely if not required.
 
          3.7FIELD QUALITY CONTROL
 
          A.Provide Field Quality Control in accordance with the requirements of Section 01 45 16.13 - Contractor Quality Control
 
          B.Manufacturer shall provide a qualified field representative on site to ensure the system is installed in accordance with the Contract Document and as follows:
          1.Attend Preinstallation meeting.
          2.Provide certification of compliance to all applicable testing procedures and related specifications.
          ** NOTE TO SPECIFIER ** Specify the number of days and number of trips required for the on-site manufacturer's field representative.
          3.On-site time for installation assistance by the Manufacturer's field representative shall be ____ day(s) with ___ trip(s).
 
         
END OF SECTION