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OCR for page 76
76 Adjusting the close-side setting approximately equal 6.5 LONG-TERM PAVEMENT STUDIES to the desired product size. AND ACCELERATED TESTING Cubical particles can be produced without the use of impact-type crushers. There is also a need to emphasize the collection and report- The aggregate industry faces divergent requirements for ing of aggregate property data for both in-service pavements aggregate shape. A change in shape may improve the and accelerated loading facilities. More effort needs to be aggregate for one application, but may hinder its use in placed on capturing aggregate property data in national stud- another application. ies related to HMA performance.