Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios (2020) / Chapter Skim
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E-1 A P P E N D I X E Delaware Construction Report Delaware Department of Transportation (DelDOT) executed the Port Penn/Pole Bridge Road overlay project in late fall of 2016.
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E-2 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios with unknown thickness. Under this study, three test sections were placed as surface course.
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Delaware Construction Report E-3 E.1 MATERIALS AND MIXTURES All three test sections used DelDOT's standard Type C (12.5 mm) Superpave mixture designed with 160 gyrations.
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E-4 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios Figure E.4: Mixture Design for Test Section 1.
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Delaware Construction Report E-5 Figure E.5: Mixture Design for Test Section 2.
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E-6 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios Figure E.6: Mixture Design for Test Section 3.
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Delaware Construction Report E-7 E.2 DESCRIPTION OF ASPHALT PLANT All three mixtures were produced at an asphalt mix plant located on the Southeast side of Wilmington, Delaware. Figure E.7 shows an overview of the hot mix plant.
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E-8 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios Figure E.8: Injection System of the Warm Mix Additive and Recycling Agent to the Binder Line and Pump to Regulate Rate. E.3 MIX PRODUCTION AND PAVING All three mixtures were produced and paved on the same day.
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Delaware Construction Report E-9 of Mailbox 988 (east end) and ended at 80 feet west of Mail box 892 (or 140 feet east of Mailbox 893)
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E-10 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios Figure E.10: Paving of the Surface Layer.
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Delaware Construction Report E-11 E.4 SAMPLE COLLECTION Plant mix was collected from the trucks at plants by climbing on scaffolding (Figure E.13)
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E-12 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios Table E.3: Materials Sampling Scheme. Sample Type Material Point of Sampling Lab-Mixed, Lab-Compacted Fine Aggregate Stockpile Coarse Aggregate Stockpile RAP Stockpile RAS Stockpile Rejuvenator Storage tank (plastic tote in metal cage)
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Delaware Construction Report E-13 Figure E.13: Collection of Loose Plant Mix. Figure E.14: Primary RAP Stockpile.
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E-14 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios Figure E.15: RAS Stockpile. Figure E.16: Aggregate (one of several)
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Delaware Construction Report E-15 Figure E.17: Aggregate (one of several) Stockpile.
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