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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Maximising aggregate sources by use of triple-blend cements in stabilised pavements</title>
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      <description><![CDATA[A study was undertaken to investigate the uses of triple-blend cements in pavement design and construction.  Stabilisation allows more effective use of marginal materials which do not meet normal pavement aggregate specifications. The paper describes the strength properties of triple- blend cements which are blends of ground granulated blast furnace slag, fly ash and normal Portland Type A cement.  It is considered that triple-blend stabilised road construction materials are able to withstand longer periods of delay in compaction due to their slow strength gains.  This phenomena makes the stabilised material less susceptible to construction stoppages during base and subbase construction.  Laboratory testing of triple-blend indicated that stabilised road base material was still able to meet the Department of Transport (Queensland) unconfined compressive strength specifications for stabilised road base after five hours delay in compaction.  Cost analyses were also carried out and the results suggested that triple-blend stabilisation may be carried out at less expense than normal Portland cement stabilisation.  The use of triple-blend cements in place of normal Portland cement in stabilised pavements could lead to more cost effective construction of pavements by local authorities.]]></description>
      <pubDate>Fri, 24 Aug 2012 16:57:53 GMT</pubDate>
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