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Porous Asphalt Specification

UNHSC Design Specifications for Porous Asphalt Pavement

A. This specification is intended to be used for porous asphalt pavement in parking lot applications. Stormwater management functions of porous asphalt installations include water quality treatment, peak flow reduction, storm volume reduction via groundwater recharge, and increased hydrograph time lag. This specification is intended for a cold climate application based upon the field

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Porous Asphalt The Specs

Mix Design. Class ½ HMA PG 70-22. Binder content shall be between 6.0% and 7.0%. Void ratio of 16% to 25%. Percent of two face fracture shall be greater than 90%. March 2015 Porous Asphalt -The Specs Washington Asphalt Paving Association 7. Sieve Size. Percent Passing. ¾” square.

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Development of a Specification for Porous Asphalt

specification for porous asphalt pavement. It is intended also to provide design guidelines regarding what conditions are appropriate for this type of pavement. Specifically, this includes guidelines for the design of the porous asphalt pavement, a stone reservoir under the pavement, and inspection and maintenance requirements for the porous pavement surface. 3 Work Plan The first part of the

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Porous Asphalt an overview ScienceDirect Topics

30/09/2011· Porous asphalt pavements are constructed in the form of an underlying, open-graded stone bed that provides drainage for the water. As the water drains through the porous asphalt and into the stone bed, it slowly infiltrates into the soil. However, the stone bed size and depth must be designed so that the water level never rises into the asphalt.

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Porous Asphalt

Porous Asphalt Specification Permeable asphalt and tarmac specification is highly recommended for a wide array of purposes and uses and as specialists in porous asphalt specification for commercial and private application, we will always be able to point you in the right direction of a practical and cost-effective solution.

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ULTIDRIVE Porous Tarmac

ULTIDRIVE POROUS asphalt has an open structure which means that rainwater quickly flows into the asphalt structure and is then slowly released into the ground, helping to avoid standing water and flooding. For driveways: 6mm porous surface course (recommended at 30mm thickness) suitable for hand lay. 20mm porous binder course.

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BREEDONPorous System Breedon Group

BREEDONPorous System. Technical Specifications. When tested in accordance with DD229: 1996, BREEDONPorous has been found to have a relative hydraulic conductivity in excess of 0.2s-1, and a water infiltration rate greater than 12,000mm/hr, when determined in accordance with BS EN 12616: 2003.. This denotes a free-draining system with in situ voids of around 20%, a horizontal permeability

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Breedon Group

Essentially, asphalt is a combination of aggregate (crushed rock and / or sand) and bitumen (derived from crude oil). Asphalt may also incorporate additives to improve performance (e.g. fibres, wax, polymers and pigments). Asphalt is commonly used in the construction of roads, pathways, car parks, driveways and play areas. Typically asphalt is black, but it may also be red, green, blue and golden.

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Specification for Road Works Series 900 Road Pavements

(v) IS EN 13108-7 Bituminous Mixtures Material Specifications Porous Asphalt (vi) IS EN 13108-8 Bituminous Mixtures Material Specifications Reclaimed Asphalt (vii) IS EN 13108-20 Bituminous Mixtures Material Specifications Type Testing (viii) IS EN 13108-21 Bituminous Mixtures Material Specifications Factory Production

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STANDARD CONSTRUCTION SPECIFICATIONS FOR ASPHALT

Standard Construction Specifications Division 40 Asphalt Surfacing Revised 11/08 SECTION 40.02 SEAL COAT Article 2.1 Description The Work under this Section consists of the performance of all Work required for the construction of a seal coat of asphalt cement and cover aggregate on RAP, strip-paved, and gravel surfaces. Article 2.2 Asphalt

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UNHSC Design Specifications for Porous Asphalt Pavement

Porous asphalt pavement refers to the compacted mix of modified asphalt, aggregate, and additives. C. The porous asphalt pavement specified herein is modified after the National Asphalt Pavement Association (NAPA) specification outlined in Design, Construction, and Maintenance Guide for Porous Asphalt Pavements, Information Series 131 (2003) and Design, Construction, and

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Specification for open graded porous asphalt TNZ P/11

SPECIFICATION FOR OPEN GRADED POROUS ASPHALT 1. SCOPE This specification describes the required properties of open graded porous asphalt for use as a surfacing course for road pavements. This mix type is intended to be used as a surfacing where there is a requirement for texture depth, noise reduction and /or splash and spray suppression.

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420.50130108 TOP COURSE POROUS ASPHALT PAVEMENT F3

as outlined in this specification. MATERIALS: The materials and composition for the Porous Asphalt Pavement mixtures shall meet the requirements specified in §401-2 Materials, except as noted herein. Formulate a job mix formula (JMF) that satisfies the design limits listed below and submit it to the Regional Materials Engineer (RME), at least one week prior to placement of the test section

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APWA Porous Hot Mix and Warm Mix Asphalt (PHMA and PWMA)

When utilizing porous asphalt we recommend that the designer begin with the sub base and base then follow with the right mix. When using these specifications on your project you must delete Amendment 5-04, Hot Mix Asphalt dated January 3, 2017 and use the existing 2016, 5-04 Standard Specifications. You can begin by building a good surface according to APWA GSP 2-06.3 Subgrade for Porous

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European Standards For Asphalt Agg-Net

PD 6691 does not cover BS EN 13108-3 Soft Asphalt, which is principally used in the Nordic countries, BS EN 13108-7 Porous Asphalt or BS EN 13108-6 Mastic Asphalt. While the use of porous asphalt on motorways and trunk roads is now limited in the UK, guidance can still be sought from the Specification for Highway Works.

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Construction specifications for permeable pavement

24/07/2019· Install porous asphalt pavement at according to temperatures recommended in the aforementioned references with a minimum air temperature of 50oF to ensure that the surface does not stiffen before compaction. Complete compaction of the surface course when the surface is cool enough to resist a 10-ton roller.

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Marshall Asphalt for Airfields GOV.UK

Porous Asphalt An asphalt mixture consisting of gap-graded aggregate and binder with a relatively open structure that is pervious to air and water. Porous Friction Course A relatively thin layer of 2/10 mm aggregate sized Porous Asphalt that allows free penetration of the surface water to the underlying impervious surface course.

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| AsphaltPro Magazine Best Practices of Porous Asphalt

The Beach Road porous pavement project propelled the New York Department of Transportation and B&L to co-author a specification for porous asphalt. Baird and Barkevich warn that porous pavements aren’t ideal for every roadway. Baird said porous asphalt works well for parking areas, as well as low volume and low speed roads, preferably roads with limited truck traffic and a speed limit of 35

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STANDARD CONSTRUCTION SPECIFICATIONS FOR ASPHALT

The asphalt required by these Specifications shall conform to the requirements of The Asphalt Institute for the type and grade shown below: Asphalt for Seal Coating CRS-2 or CRS-2P Article 2.3 Cover Aggregate A. General Cover aggregate shall consist of crushed gravel and shall be sound, durable, free of adherent coatings of clay, dirt or any other objectionable matter, and shall have a

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California Asphalt Pavement Association Stormwater

  These pavements are designed to let the water flow through them and into the detention basin. Porous asphalt pavement is commonly known as open graded asphalt concrete (OGAC), open graded friction course (OGFC), and permeable asphalt.   OGAC/OGFC has been used by state DOTs and local agencies since the 1930's.

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