218.1 218.2(c)
218.1DESCRIPTION —This work is furnishing, transporting, placing, and compacting foamed glass
aggregate (FGA) lightweight fill for construction of embankments and for backfilling behind structures.
218.2MATERIAL —
to the following requirements:
TABLE A Foamed Glass Aggregate Physical Requirements(1) Property Test Method Value Dry Loose Bulk Density, as manufactured (pcf) ASTM C29/C29M , Method C(2) 15 (max.) Moist Loose Bulk Density, as delivered (pcf) ASTM C29/C29M , Method C(2) 20 (max.) Confined Compression Load Required to Obtain 10% Vertical Deformation (psi) EN 1097 -11:2013(3) 48.6 ( 7,000 psf) Confined Compression Load Required to Obtain 20% Vertical Deformation (psi) EN 1097 -11:2013(3) 104 (15,000 psf)
density.
TABLE B Foamed Glass Aggregate Size and Grading Requirements, as Manufactured Based on Laboratory Sieve Tests, ASTM C136/C136M(1), Square Openings Sieve Size Percent Passing 4-inch 100 2 1/2-inch 85-100 3/8-inch 0-15
manufactured material.
• Provide FGA produced from at least 98% recycled glass.
• Provide material delivered in bulk.
• Provide manufacturer’s name and material physical properties certification showing conformance to the values as specified in Table A and Table B.
218.2(d) 218.3(b)
218.3CONSTRUCTION —
recommendations. During all stages of manufacture, shipment, storage, and construction, minimize the amount of handling to prevent physical damage to the material. Store material in an area not prone to flooding. Minimize the amount of trafficking on FGA until geotextile a nd an adequate thickness of capping material (6 inches compacted, minimum) is placed over the FGA. Do not use the FGA placement area as a haul road without an evaluation of the capping material thickness to support the proposed traffic loads. Submit the evaluation to the Department for approval.