Processed Glass Aggregate Specifications and Approved Uses by State - New England

Monday, July 27, 2020

Summary of Specifications and Approved Uses of Processed Glass Aggregate
In New England - Environmental and Transportation Agencies
 

Wondering how the specifications and uses for processed glass aggregate (crushed recycled glass) vary from state to state in New England?  Did you know that the requirements not only differ by state, but also by state agency? 

The chart below summarizes the gradation and contamination requirements, as well as the approves uses, for processed glass aggregate for the environmental protection agency and the transportation agency for each of the New England states. 
 

State

Environmental Agency - Graduation and Contamination Requirements

Environmental Agency - Approved Uses

Transportation Agency - Gradation and Contamination Requirements

Transportation Agency - Approved Uses

Mandatory Glass Recycling*

 Governs municipal and private use: including in municipal and private roadsGoverns state use: including in state highways 

MA

  • 100% of PGA must pass 3/8" sieve

  • PGA must consist of clean mixed color cullet with a maximum residual content (i.e., food, paper, etc.) of 5% by volume

  • No glass products other than food or beverage containers (i.e., fluorescent lights, video screens, windowpanes, etc.)

  • Subgrade construction applications

  • Subsoil drainage systems

  • Substitute for conventional aggregate in asphalt or concrete

  • Daily cover

  • 100% of PGA must pass 3/8" sieve

  • Maximum of 5% mass of the material may be produced from china dishes, ceramics, plate glass or other glass products

  • Allowed at a maximum addition rate of 10% by mass provided any subbase material will not be exposed

  • The material shall consist of recycled glass food or beverage containers free of debris such as paper, metals, fabrics, toxins, clay or loam

  • Structural fill

  • Subbase material for roads

Yes

NH

  • 100% of PGA shall pass a 1" sieve

  • Subbase material for roads, bedding material for pipes and fill around retaining walls and foundations

  • Shall not be applied to ground surface and left uncovered as a final application; not approved as general fill

  • If used in public works application, must meet specifications of town or governmental unit using it

  • If used in private application, must meet specifications as determined by professional engineer or architect licensed in NH

  • 100% of PGA must pass 3/8" sieve

  • Up to 20% PGA may be used to replace road base gravel (20% PGA/80% gravel mix)

  • Glass cullet shall meet requirements of AASHTO M318

  • Glass cullet base course blends shall be capped with standard specification base course materials before the traveling public can drive over the material

  • Drainage

  • Pipe bedding

  • Structural fill

  • Subbase material for roads

No

VT

  • 95% of the material shall pass a 1” (25.0mm) sieve

  • Not more than 3% of the material passing the No. 4 (4.75mm) sieve shall pass a No. 200 (0.075mm) sieve

  • Material shall contain 5% or less by mass china dishes, ceramics or plate glass

  • Material shall be less than 1% screw tops, plastic cap rings, or other contaminants

  • Base course, subbase layer and embankments for roadway, trails, parking lots and sidewalk applications

  • Utility trench bedding and backfill applications

  • Drainage applications

  • Filter media for wastewater treatment systems

  • Landfill cover

  • Bulking agent for compost

  • 95% of the material shall pass a 1-inch (25.0 mm) sieve

  • Not more than 3% of the material passing the No. 4 (4.75 mm) sieve shall pass a No. 200 (0.075 mm) sieve

  • Materials used to produce PGA shall consist of recycled glass food or beverage containers

  • Small amounts (less than 5% total) of china dishes, ceramics, plate (window or mirror) glass, or other glass products allowed in PGA

  • PGA material shall not contain more than trace amounts of screw tops, plastic cap rings, or other contaminants

  • Amounts of contaminants greater than 1% by weight shall be grounds for rejection of the entire PGA batch

  • Structural fill

  • Subbase material for roads

  • Drainage

  • PGA subbase blends must be approved for use on the Project by the Engineer in writing prior to being placed on a Project. In-place blending of PGA with other materials is not permitted

Yes

CT

  • Crushed recycled glass may include glass food or beverage containers with less than 5%, by volume, of other solid waste material e.g. plastic, metal or paper

  • Has been combined by processing source-separated recyclable solid waste at an intermediary processing facility

  • Cannot be marked as cullet for remelt

  • Must have components that measure not greater than 3/8”

  • Must be virtually inert

  • Landfill cover

  • Fill material including aggregate for asphalt or concrete or any other subgrade construction application in which the glass would serve as a substitute for sand or stone aggregate

  • Glass material may not constitute greater than 10% by volume of clean fill

  • If glass is used in reclaimed waste, its individual particles shall be no larger than 1 inch and shall be thoroughly mixed with other embankment materials such that its content anywhere in the embankment shall not exceed 25% by weight

  • Stockpiled reclaimed waste material containing no more than 25% of glass by weight and no more than 2% by weight of asphalt cement may be used for part or all borrow requirements

  • If glass is used in bituminous concrete materials, crushed recycled container glass (CRCG) must: (1) not exceed 5% by weight of total aggregate; (2) contain no more than 1% by weight of contaminants such as paper, plastic and metal; and (3) 100% must be crushed to 3/8 of an inch or less

  • Embankment material as reclaimed waste

  • To meet borrow requirements

  • May be used in bituminous concrete mixtures for pavement subbase and base courses

  • Engineer approval required

Yes

ME

  • No state specifications for PGA

  • N/A

  • No state specifications for PGA

  • N/A

No

RI

  • No state specifications for PGA

 

  • N/A

  • No state specifications for PGA

  • N/A

Yes

 

 

 

 

Massachusetts

Department of Environmental Protection

PGA Specifications: Website

Contact: Greg Cooper, Division Director – BAW Business Compliance & Recycling,

greg.cooper@mass.gov

617-292-5988

Department of Transportation

PGA Specifications (found in supplemental specifications): Website

Contact: Daniel N. Digilio, Civil Engineer – Quality Assurance, Materials and Research

daniel.digilio@dot.state.ma.us

MassDOTQCML@dot.state.ma.us (general inquiries)

New Hampshire

Department of Environmental Services

PGA Specifications: Website

Contact: New Hampshire Department of Environmental Services Solid Waste Bureau

solidwasteinfo@des.nh.gov

603-271-2925

Department of Transportation

PGA Specifications (found in highway design specifications): Website

Contact: Deirdre Nash, Assistant Research Engineer

Deirdre.Nash@dot.nh.gov

(603) 271-8995

Vermont

Department of Environmental Conservation

PGA Specifications: Website

Contact: Barb Schwendtner, Solid Waste Compliance Chief, Waste Management & Prevention Division

barb.schwendtner@vermont.gov

Agency of Transportation (VTrans)

PGA Specifications (found in Standard Specifications): Website

Contact: Nick Van Den Berg, P.E. Materials Manager, Highway Division Construction & Materials Bureau

nick.vandenberg@vermont.gov

Connecticut

Department of Energy & Environmental Protection

PGA SpecificationsWebsite

Contact: Chris Nelson, Supervising Environmental Analyst

chris.nelson@ct.gov

Department of Transportation

PGA SpecificationsWebsite

Contact: David Kilpatrick, Connecticut Department of Transportation

David.Kilpatrick@ct.gov

 

 

*Municipal Disposal Ban or Mandatory Recycling for Glass - Resource: https://nerc.org/documents/disposal_bans_mandatory_recycling_united_states.pdf

 

*Municipal Disposal Ban or Mandatory Recycling for Glass - Resource: https://nerc.org/documents/disposal_bans_mandatory_recycling_united_states.pdfError message