https://trid.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ https://trid.trb.org/View/1332702 Thu, 04 Dec 2014 12:16:47 GMT https://trid.trb.org/View/1332702 https://trid.trb.org/View/919067 Fri, 11 Jun 2010 12:05:42 GMT https://trid.trb.org/View/919067 https://trid.trb.org/View/890484 80% AIR or <8% MD losses, provided excellent to very good skid resistance regardless of the aggregate residual polish value. In general, all test methods evaluated showed better capability in separating excellent/very good quality aggregates than in identifying very poor/poor quality aggregates. In other words, the special limitation in these test methods was found to be in their ability to classify borderline aggregates into satisfactory and unsatisfactory categories. The WWARP aggregate classification system based on Residual PV, MSS loss and AIR proved to be effective in separating Excellent/Very Good (Class A) from Good/Fair (Class B) materials. However, this classification system failed to separate the few aggregate sources with poor field performance from those with good/fair performance.]]> Wed, 10 Jun 2009 16:49:52 GMT https://trid.trb.org/View/890484 https://trid.trb.org/View/850888 Tue, 25 Mar 2008 14:38:57 GMT https://trid.trb.org/View/850888 https://trid.trb.org/View/809029 Wed, 16 May 2007 15:42:03 GMT https://trid.trb.org/View/809029 https://trid.trb.org/View/803632 Fri, 02 Mar 2007 16:10:03 GMT https://trid.trb.org/View/803632 https://trid.trb.org/View/502432 Mon, 19 Jul 1999 00:00:00 GMT https://trid.trb.org/View/502432 https://trid.trb.org/View/110480 Fri, 19 Aug 1994 00:00:00 GMT https://trid.trb.org/View/110480