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	SECTION 02794
	HARD SURFACE POROUS PAVEMENT SYSTEM
	Copyright 2013 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: 920-738-1707 Fax: 920-738-1222 Email: request info Web: www.prestogeo.com [ Click Here ] for additional information. . PRESTO offers a full range of porous pavement needs with the Geoblock®, GeoPave™, and FilterPave™ 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 Presto FilterPave®and FirmaPave® porous pavement systems that offers a greener, highly attractive hard-surfaced porous surface designed to handle light-to-heavy pedestrian or vehicular traffic loads for access roads, parking lots, patios, driveways, sidewalks and walkways. This unique pavement has architectural aesthetics, design flexibility, and environmental benefits that surpass standards for pavements of its kind. Consult Presto Geosystems for assistance in editing this section for the specific application.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete any paragraphs below not applicable to project.
		A.	Hard Surface Porous Paving System.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete sections below not relevant to this project; add others as required.
		A.	Section 02300 - Earthwork.
		B.	Section 02620 - Subdrainage System.
		C.	Section 02700 - Bases, Ballasts, Pavements, and Appurtenances.
		D.	Section 02760 - Painted Pavement Marking
		E.	Section 02800 - Site Improvements and Amenities.
		F.	Section 02840 - Parking Bumpers.
	1.3	REFERENCES
	** 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.
	1.4	SYSTEM DESCRIPTION
	** NOTE TO SPECIFIER ** Edit and delete portions below not relevant to this project; add others as required.
		A.	Hard Surface Porous Paving System: Filterpave System is a paving system utilizing recycled glass as an aggregate with an elastomeric binder.
			1.	Provides bearing strength and a permeable load support structure for vehicular or pedestrian traffic loading requirements using porous high hardness glass aggregate with a high porosity high strength binder.
	** NOTE TO SPECIFIER ** Edit the following paragraph as required for project. Consult with manufacturer for additional information.
			2.	System to support an imposed loading as follows:
				a.	Support gross vehicular loads of ________ lbs (________kg) maximum.
				b.	Support gross pedestrian loads of ________ lbs (________kg) maximum.
		B.	Hard Surface Porous Paving System: Firmapave System is a paving system utilizing granite as an aggregate with an elastomeric binder.
			1.	Provides bearing strength and a permeable load support structure for vehicular or pedestrian traffic loading requirements using porous crushed granite aggregate with a high porosity high strength binder.
	** NOTE TO SPECIFIER ** Edit the following paragraph as required for project. Consult with manufacturer for additional information.
			2.	System to support an imposed loading as follows:
				a.	Support gross vehicular loads of ________ lbs (________kg) maximum.
				b.	Support gross pedestrian loads of ________ lbs (________kg) maximum.
	1.5	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data: Submit manufacturer's product data.
		C.	Shop Drawings: Submit manufacturer's shop drawings including laying pattern and anchoring.
	** NOTE TO SPECIFIER ** The following paragraph applies to Filterpave only. Delete the following paragraphs if LEED is not applicable.
		D.	LEED Submittals: Provide documentation of how the requirements of Credit will be met:
			1.	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.
			2.	Storm water management through use of permeable surfaces that provide stormwater infiltration and reduce stormwater runoff.
			3.	Reduced Heat Island Effect through creation of a cooler surface.
			4.	Recycled Material Content through use of materials with recycled content to reduce impacts from extraction and processing of new virgin materials.
			5.	Regional Materials by using material within 500-mile radius of source, if applicable.
		E.	Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.
		F.	Certificates:
			1.	Product certificates signed by the manufacturer certifying material compliance of polyethylene used to make porous paving units.
			2.	ISO Certification certifying manufacturer's quality management system is currently registered to ISO 9001:2008 quality standards.
		G.	Installation Instructions: Manufacturer's printed installation instructions. Include methods for maintaining installed products.
		H.	Manufacturers warranty.
	1.6	QUALITY ASSURANCE
		A.	Manufacturer ISO Certification: ISO Certification certifying manufacturer's quality management system for its porous paving system is currently registered to ISO 9001:2000 quality standards.
		B.	Manufacturer's Field Representative Qualifications: Manufacturer's field representative experienced in the installation of the specified products.
	** NOTE TO SPECIFIER ** Retain subparagraphs below if required to suit project. Delete if not required.
		C.	Installer Qualifications: Experienced in performing work of this section who has specialized in installation of work similar to that required for this project.
		D.	Preinstallation Meetings: Convene a meetings 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 representative. Comply with Division 1 requirements.
	** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
		E.	Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
			1.	Finish areas designated by Architect.
			2.	Do not proceed with remaining work until workmanship, and color, are approved by Architect.
			3.	Refinish mock-up area as required to produce acceptable work.
	1.7	DELIVERY, 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.	Elastomeric binder components shall be shipped in sealed water-tight containers.
		C.	Glass and granite aggregate shall be shipped in commercial-grade, moisture-proof super sack bags with lifting straps.
		D.	Storage: Store materials in accordance with manufacturer's instructions.
		E.	Handling: Protect materials during handling and installation to prevent damage.
	1.8	PROJECT CONDITIONS
		A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.
		B.	Do not place Hard Surface Porous Paving System when the following conditions exist.
			1.	Unstable or frozen base.
			2.	During rain or snow.
			3.	When air temperature is less than 45 degrees F or more than 95 degrees F.
	1.9	WARRANTY
		A.	Warranty: Manufacturer's ten year limited warranty.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		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: 920-738-1707; Fax: 920-738-1222; Email: request info; Web: www.prestogeo.com
		B.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	** NOTE TO SPECIFIER ** Delete paragraph above or below; coordinate with Division 1 requirements.
		C.	Substitutions: Not permitted.
	2.2	STABILIZED AGGREGATE POROUS PAVING SYSTEM COMPONENTS
		A.	Hard Surface Porous Paving System:
	** NOTE TO SPECIFIER ** Select one of the following porous paving system paragraphs and delete the one not required.
			1.	Presto Geosystems Filterpave System.
			2.	Presto Geosystems Firmapave System.
	** NOTE TO SPECIFIER ** Edit the following paragraphs as required to suit loading conditions required for the project. Contact the manufacturer for additional requirements and recommendations. Coordinate requirements specified here with Section .
		B.	Sub-base: Provide sub-base as specified in Section 02700 to the depths specified.
		C.	Base Aggregate:
			1.	Base aggregate shall consist of crushed aggregate, crusher run limestone or equivalent material of good structural quality with a particle range from 3/8 to 3/4 inches.
			2.	Place a choker course of 1-1/2 inches of 1/4 to 3/8 inch clean, crushed aggregate above the base aggregate.
			3.	All base aggregate materials shall have less than 5 percent fines.
		D.	Binder: As manufactured by Presto Geosystems.
			1.	High strength elastomeric binder shall be specifically formulated for Hard Surface Porous Paving System applications.
			2.	Elastomeric binder components shall be as provided by the Hard Surface Porous Paving System manufacturer.
	** NOTE TO SPECIFIER ** Select one of the following two aggregate paragraphs and delete the one not required. The first paragraph applies to Filterpave and the second to Firmapave
		E.	Recycled Filterpave Glass Aggregate: As provided by Presto Geosystems.
			1.	Recycled glass aggregate shall be post consumer recycled glass, crushed and tumbled to meet the prescribed gradation with a maximum 5 percent fines. All glass aggregate shall be provided by a single manufacturer for the entire project.
			2.	Glass shall be tested and certified to meet the specification. Improperly processed, recycled glass will not be acceptable.
			3.	Glass shall be 1/4 inch or less and shall generally conform to the percentages of particle diameter size required by the Hard Surface Porous Paving System manufacturer.
			4.	Recycled glass aggregate content will be derived from 100 percent post-consumer food and beverage containers cleaned, crushed, rounded and processed to meet Presto's approval criteria.
		F.	Granite Firmapave Aggregate: As provided by Presto Geosystems.
			1.	Granite aggregate crushed to meet the prescribed gradation with a maximum 5 percent fines. All granite aggregate shall be provided by a single manufacturer for the entire project.
			2.	Granite shall be 1/4 inch or less and shall generally conform to the percentages of particle diameter size and quality required by the Hard Surface Porous Paving System manufacturer.
		G.	Mix Design
			1.	Mix designs complete with sample test results shall be submitted to the Engineer for approval prior to placing the Hard Surface Porous Paving System.
		H.	Pigment
			1.	Pigmentation of resin shall be added in accordance with the manufacturer's instructions for the color selected by the Architect.
			2.	Colors shall be selected by the Architect from the Presto Products standard palette.
		I.	Proportions
			1.	Conform to the manufacturer's specification for proposed binder ratio (typically expressed as a percentage by weight of glass) and shall maintain this ratio within a plus or minus 5 percent tolerance.
			2.	Admixture ratios to be dictated by site-specific weather conditions and approved by binder supplier. Take specific precautions to accurately and thoroughly combine admixtures to avoid early cure of the Hard Surface Porous Paving System mix.
		J.	Surface Overcoat
			1.	Overcoat material shall be provided by Presto Geosystems.
			2.	Surface over-coating shall be applied with rollers.
		K.	Geotextiles
			1.	Non-woven, 8 ounce per yard density minimum average value with a minimum infiltration rate of 90 gal/min per sq ft.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Before beginning installation, verify site conditions are as indicated on the drawings. Notify the Architect 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.
	3.2	PREPARATION
		A.	Subgrade:
	** NOTE TO SPECIFIER ** Coordinate paragraphs below with earthwork provided by others. Depth to groundwater is recommended to be a minimum of three feet from bottom of base at high groundwater. Note that subgrade specified in Section should be compacted to 95 percent proctor density.
			1.	Prepare subgrade as specified in Section 02700. Verify subgrade in accordance with porous paving system manufacturer's instructions.
			2.	Excavate area allowing for porous paving system thickness and engineered sub-base depth where required.
			3.	Provide adequate drainage from excavated area if area has potential to collect water.
			4.	Ensure in-place soil is relatively dry and free from standing water.
			5.	Uniformly grade base.
			6.	Level and clear base of large objects, such as rocks and pieces of wood.
			7.	If required, place a geotextile separation layer between the natural ground and the base.
			8.	Sub grade permeability shall meet a minimum infiltration rate of 1.0 inches per hour unless otherwise approved by the Architect.
		B.	Base Preparation:
	** NOTE TO SPECIFIER ** Coordinate paragraphs below with base installation provided by others. Delete subdrain paragraph if not applicable. 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 02700. Verify base is installed in accordance with porous paving system manufacturer's instructions.
			2.	Coordinate base installation and preparation with subdrains specified in Section 02620.
			3.	Place base to the minimum thickness specified and or as indicated on the Drawings.
			4.	Place a 1-1/2 inch choker course of 1/4 to 3/8 inch clean, crushed aggregate above base aggregate. Leveled to within 1/2 inch of grade elevation indicated on the Drawings.
		C.	Formwork: Provide formwork where required. Forms shall me fabricated of wood, steel, or plastic.
			1.	Forms shall be the full depth of the pavement.
			2.	Forms shall be sufficient strength and stability to support mechanical screeding equipment without deformation following spreading and strike-off operations.
			3.	Apply non-petroleum based, 100 percent biodegradable vegetable oil to forms, tools and any equipment that will come into contact with the elastomeric binder. Petroleum based form release agent is not permitted.
			4.	Forms shall not have stakes or spikes protruding above the top of the forms to assure even screeding of the poured material.
	3.3	INSTALLATION
		A.	Install Hard Surface Porous Paving System in accordance with porous paving system manufacturer's instructions.
			1.	Once unsealed, the elastomeric binder packaging shall use Manufacturer-approved desiccant caps to assure that moisture is not introduced to either of the two-part components of the binder.
			2.	MSDS information on the elastomeric binder material as well as ratio of binder to glass content shall be required.
		B.	Mixing
			1.	Mix on-site with volumetric mixers specifically designed for producing Hard Surface Porous Paving Systems as recommended by the manufacturer.
			2.	Volumetric mixer shall operate at 300 RPM minimum and shall be capable of discharging into the conveyance equipment and/or directly to the forms to maintain maximum working time.
			3.	Mixer and mixer components shall be kept dry until the binder can be introduced.
			4.	Calibration of the binding agent content and mix percentage in conformance with the manufacturer's design formulation.
		C.	Placement
			1.	Discharge shall be a continuous operation and shall be completed as quickly and efficiently as possible.
			2.	Material shall be discharged into conveyance equipment as close to its final position as practical to ensure that fresh mix enters the mass of previously placed material.
			3.	In the event of material shortage or mechanical delays in mixing, provide a construction joint equivalent to project forms as required.
		D.	Finishing
			1.	Strike off mix material using vibratory power-screed or vibrastrike type device as dictated by project parameters. Extreme care should be taken to strike off the material as flat and uniformly as possible.
			2.	Filling and cutting imperfections shall be completed with fresno or other hand trowels immediately after strike off. Any apparent low spots must be filled immediately, in less than 5 minutes, after strike off and floated in using hand or mechanical trowels.
			3.	Finishing shall be accomplished with Fresno and hand trowels within 10 minutes of screeding.
			4.	Edging shall commence immediately after final finish with conventional concrete edging tools. Immediately, in less than 5 minutes. Fill low spots along the edge created by strike off operations.
			5.	Spacing of and determination between tooled edge construction joints or mechanically cut in compression joints shall be as indicated on the Drawings or as recommended by the manufacturer.
		E.	Surface Overcoat
			1.	Apply an overcoating of no less than 5 mil of manufacturer approved surface binder to the surface within 24 hours after installation is completed.
			2.	If traffic is allowed to access the installation, the area shall be cleaned and allowed to dry a minimum of one day before application.
			3.	Follow Manufacturer's recommendations for preparation, placement and curing.
			4.	Surface overcoat shall not be subject to rain, sleet or snow for a minimum of four hours after installation.
		F.	Curing
			1.	Allow material and surfacing to cure a minimum of three days prior to accepting vehicular traffic if ambient temperature does not fall below 60 degrees F (15.5 degrees C). If ambient temperatures fall below 60 degrees F allow material and surfacing to cure a minimum of five days prior to accepting vehicular traffic.
			2.	During the curing period, protect the installation from damaging mechanical disturbances, water flow, loading, shock and vibration.
	3.4	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION