District Highway Maintenance Research On-Call Task#4 - Best Practices for Using Slag in Chip Seal Treatments [Fact Sheet]
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2023-10-01
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Abstract:In 2018, the Ohio Department of Transportation (ODOT) District 1 conducted a trial chip seal project in Defiance County on State Route 66 that utilized electric arc furnace (EAF) slag in lieu of the traditional limestone aggregates. The results of this chip seal project have been mixed thus far. There was an increase in the number of windshield breakage claims following construction, which might be due to the relatively high density of the EAF slag. In addition, some areas were found to have delaminated after the first winter plowing season.
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