Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content (2011) / Chapter Skim
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Pages 49-53
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From page 49... ...
A test method was developed to determine the percentage PP in the recycled HDPE. PP is a contaminant that comes from the tops and pour spouts of detergent bottles.
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Of course, an unnotched stress-crack test like the BFF test would also be required to assess the long-term performance of the blends. Phase 3 -- Pipe Made from Recycled-Resin Blends The purpose of this phase of the project was to manufacture dual wall corrugated drainage pipe out of resin formulations containing recycled HDPE.
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From page 51... ...
to measure inside diameter displacement. The pipe sample would be placed between parallel plates and loaded with the appropriate mass.
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2. Perform SIM on 12-in.
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From page 53... ...
Validation of the BFF test results for predicting long-term stress-crack failures is very important because it is crystal clear that this is the main concern for corrugated pipe containing recycled HDPE. Of equal importance is validating the proposed BFF test under a single set of temperatures and stresses as a quality control test.
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