Recycled Materials and Byproducts in Highway Applications—Manufacturing and Construction Byproducts, Volume 8 (2013) / Chapter Skim
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Pages 66-83
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66 Post-consumer glass cullet can usually be separated by color: amber, green, and clear. The Northeast Resource Recovery Association identifies suitable sources of recycled crushed glass as glass or ceramic bottles, glass jars, ceramic tableware and cookware, vases, ceramic flowerpots, plate glass, mirror glass, and residential incandescent light bulbs.
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67 sources of glass cullet (Table 89)
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68 the trace metals in leachate (Table 91)
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69 usage and Production of Waste glass Chesner et al.
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70 indicating experience with this byproduct by the respondent filling out the survey. Only Alaska, Hawaii, and Idaho indicated some experience in the western half of the United States.
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71 bars (ASTM C1260)
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72 by fly ash. The tensile strengths of the PCC mixes with glass aggregates were similar to those for the control mixes.
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73 conclusions could be reached. No ASR expansion was noted in any of the glass powder mixes.
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74 of fines in the glass cullet mixes. Workability was reduced because of the sharp edges and harsh texture.
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75 unbound Ho et al.
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76 which is substantially lower than the annual production of millions of tons of aggregates per year. Table 101 lists the pilot projects constructed with glass cullet.
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77 windshields, other car glass, light bulbs, porcelain, laboratory glass, and glass from televisions and computers were excluded. Other specification details included a requirement for crushing operations to produce a well-graded byproduct, combined gravel/glass material must meet MnDOT specification 3138, and it shall not be used as a surfacing aggregate or shoulder surface.
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78 most state upper limit specifications, and the freeze/thaw resistance was good with no more than 7.1% loss after 120 cycles (Table 103)
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79 cullet, but had difficulty in identifying reuse applications. The recycler ended up land filling the material at a cost of $18 a ton.
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80 The benefits were noted as the reduced cost of transporting glass to landfill or distant disposal sites, reduced use of landfill air space, reduced amount of virgin aggregate consumed, and improved environmental awareness/attitudes. The costs listed as associated with glass cullet use were the costs of curbside collection, crushing glass, and mixing with aggregate.
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81 summary of glass ByProduct information list of Byproducts The byproduct categories needed for glass cullet are: • Processed glass aggregate (amber, green, flint colors) • Powdered glass.
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82 content of label ink, specialty glass chemistries, and waste thermometers (i.e., mercury content)
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83 • A minimum depth of ground water or bedrock of 4 ft, minimum distance of 150 ft away from any surface water body, and a maximum slope of 4% to any body of water. • Glass cullet should not be placed directly on synthetic liners, geogrids, or geotextiles, or be left exposed to the air for extended periods of time.
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