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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
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      <title>Aggregate Pre-Coating Approach Using Rubber- and Silane-Coupled Thermoset Polymer and Emulsion for Warm-Mix Asphalt Mixtures</title>
      <link>https://trid.trb.org/View/1483791</link>
      <description><![CDATA[This study proposes an aggregate pre-coating approach using both a synthesized thermoset polymer and an asphalt emulsion as a warm-mix asphalt mixture. An oil-in-water emulsified asphalt is added to initiate a moisture hardening reaction for aggregate coating with the polymer on the surface of the aggregate. Then, the PG64-22 asphalt binder is finally mixed with the pre-coated aggregates in the temperature range of 120–130 °C. The chemically modified epoxy can react with some polar components on the surface of aggregates, and it bonds with nonpolar groups in an asphalt binder so that it gives high adhesive strength on the surface of aggregates.  The surface strength of the synthesized epoxy was at least 2-fold greater than the general epoxy sample, as verified by the Dolly test. The chemically modified epoxy was used as a coating agent for aggregates and made possible to react with the water molecules in the emulsified asphalt binder. The bonding effect was verified by the boiling test, maintaining greater than 90% of the coated film.]]></description>
      <pubDate>Thu, 30 Nov 2017 09:53:59 GMT</pubDate>
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      <title>Double-Deck Delight: Paving the Runyang Bridges</title>
      <link>https://trid.trb.org/View/758467</link>
      <description><![CDATA[China will celebrate the completion of the latest of its many world class bridge projects with the opening of the Runyang bridges in July 2005.  The 758 m long cable stayed bridge and the 1490 m main span suspension bridge, which together with the 1512 m long connecting viaduct form an impressive engineering achievement, were the subject of the largest ever orthotropic bridge deck paving project  High summer temperatures and low winter temperatures have been responsible for numerous durability problems with pavements on orthotropic steel decks in China.  The Runyang Bridge Construction Command conducted a thorough investigation of available materials, and chose Chemco Systems' epoxy asphalt based on problem free experience as the pavement.  Fatigue tests demonstrated the ability of the epoxy asphalt pavement to resist fatigue cracking over the longitudinal stiffeners in the orthotropic steel deck.  Epoxy asphalt is a thermoset polymer that does not soften as much as bituminous pavements at high temperatures and has shown no signs of rutting an shoving at very high deck temperatures]]></description>
      <pubDate>Mon, 01 Aug 2005 08:04:06 GMT</pubDate>
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