<rss version="2.0" xmlns:atom="https://www.w3.org/2005/Atom">
  <channel>
    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
    <description></description>
    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>EXPERIMENTAL MOISTURE DETERMINATION FOR DEFINING SATURATED SURFACE DRY STATE OF HIGHWAY AGGREGATES</title>
      <link>https://trid.trb.org/View/138359</link>
      <description><![CDATA[The objective of the research project was to investigate various moisture testing techniques in an attempt to improve present methods of specific gravity testing for fine aggregate. A testing technique to reduce the wide range of specific gravity test results and the time necessary to test for saturated surface dry condition is needed. A direct test method to measure surface moisture conditions would be desirable where as an indirect test method is presently in use. A prototype test apparatus was developed to directly measure surface moisture condition of mineral aggregate using basic principles of thermodynamics. The new test apparatus enables the laboratory technician to determine saturated surface dry state in a few minutes with satisfactory reliability. A reasonable cost was incurred for the construction of the prototype test apparatus (Under $500). Range of test results from differential drying of various aggregate sizes during preliminary testing was eliminated with the test apparatus. The test apparatus responded equally well to a variety of materials and demonstrated surface moisture changes accurately. Initial research tests using the prototype apparatus produced a moisture percentage range of plus or minus 1 for each test sample. The range of test results for the standard cone test (AASHO T84-70) has previously shown to deviate plus or minus 2.3% or plus or minus .06 for a specific gravity of (2.60). Further evaluation is necessary to verify the range of test results for the new test equipment. A wide variety of material classifications should be tested with the prototype to verify the advantages of the apparatus.]]></description>
      <pubDate>Tue, 12 Nov 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/138359</guid>
    </item>
  </channel>
</rss>