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    <title>Transport Research International Documentation (TRID)</title>
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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>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Critique of CANDE/AASHTO Soil Groups</title>
      <link>https://trid.trb.org/View/1869277</link>
      <description><![CDATA[CANDE and AASHTO pipe design documents inappropriately group soil types that have greatly varying strength and compressibility properties leading to unnecessary design uncertainty. Most notably, fine-grained elastic silt (MH) is grouped with coarse-grained clayey gravel (GC). There are other groupings that also do not seem appropriate. A defensible design of buried pipe requires acceptable limits on uncertainty. The CANDE and AASHTO groups exhibit an unjustifiably broad range of soil behavior and therefore may often not result in designs of acceptable uncertainty. Additionally, the CANDE and AASHTO naming convention causes problems in referring to the soil groups by using redundant symbols. The inappropriate grouping of some of the soil classifications will be illustrated by comparing their engineering properties. An alternate grouping is proposed.]]></description>
      <pubDate>Mon, 30 Aug 2021 14:50:21 GMT</pubDate>
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      <title>Soils for landscape development: selection, specification and validation</title>
      <link>https://trid.trb.org/View/1864430</link>
      <description><![CDATA[Soils for Landscape Development provides a clear, practical and systematic template for specifying landscape soils based on scientific criteria. The soil specifications provide essential information and a universally applicable method for landscape architects and designers, specification writers, landscape contractors and soil supply companies to ensure quality and fit-for-purpose soils. A strong emphasis is placed on reducing environmental impacts by reuse of on-site soil, promoting appropriate minimal soil intervention, and using recycled products.]]></description>
      <pubDate>Wed, 07 Jul 2021 15:16:19 GMT</pubDate>
      <guid>https://trid.trb.org/View/1864430</guid>
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      <title>Cone penetration testing in thinly inter-layered soils</title>
      <link>https://trid.trb.org/View/1516947</link>
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      <pubDate>Tue, 26 Jun 2018 10:11:55 GMT</pubDate>
      <guid>https://trid.trb.org/View/1516947</guid>
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      <title>Plastic fines of road construction materials tested using the methylene blue method</title>
      <link>https://trid.trb.org/View/1375052</link>
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      <pubDate>Tue, 17 Nov 2015 11:08:46 GMT</pubDate>
      <guid>https://trid.trb.org/View/1375052</guid>
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      <title>Estimating the Californian bearing ratio from the particle size distribution and Atterburg limits</title>
      <link>https://trid.trb.org/View/1335385</link>
      <description><![CDATA[]]></description>
      <pubDate>Mon, 15 Dec 2014 14:36:48 GMT</pubDate>
      <guid>https://trid.trb.org/View/1335385</guid>
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      <title>Calcium-based stabiliser treatment of sulphate-bearing soils</title>
      <link>https://trid.trb.org/View/1319770</link>
      <description><![CDATA[]]></description>
      <pubDate>Mon, 11 Aug 2014 14:18:25 GMT</pubDate>
      <guid>https://trid.trb.org/View/1319770</guid>
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    <item>
      <title>Methods of testing soils for engineering purposes: method 3.6.3: soil classification tests: determination of the particle size distribution of a soil: standard method of fine analysis using a hydrometer</title>
      <link>https://trid.trb.org/View/1212011</link>
      <description><![CDATA[This Standard sets out a method for the quantitative determination of the particle size distribution in a soil from a coarse sand size down, using a hydrometer for particles finer than the 75 mm sieve.  The method as described is not applicable if less than 10% of the material passes the 75 mm sieve as measured in AS 1289.3.6.1.  If used in combination with AS 1289.3.6.2 this Method covers the determination of particles finer than the 75 mm sieve.]]></description>
      <pubDate>Mon, 27 Aug 2012 12:34:35 GMT</pubDate>
      <guid>https://trid.trb.org/View/1212011</guid>
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      <title>Soil classification tests for gravel testing</title>
      <link>https://trid.trb.org/View/1210193</link>
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      <pubDate>Sat, 25 Aug 2012 00:09:55 GMT</pubDate>
      <guid>https://trid.trb.org/View/1210193</guid>
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      <title>Micaceous soils: methods of determining mica content and the use of routine tests in the evaluation of such soils</title>
      <link>https://trid.trb.org/View/1209221</link>
      <description><![CDATA[This paper is in two parts, the first of which reviews several possible methods of determining the mica content of a soil and then describes in detail the development and successful operation of two methods, a vibratory method and a dielectric one.  The second part of the paper records the results of standard laboratory tests on three soils with a high mica content and discusses the value and limitations of such tests in assessing the field performance of micaceous soils (A).]]></description>
      <pubDate>Fri, 24 Aug 2012 23:41:24 GMT</pubDate>
      <guid>https://trid.trb.org/View/1209221</guid>
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    <item>
      <title>Classification of volcanic soils for roadmaking</title>
      <link>https://trid.trb.org/View/1209219</link>
      <description><![CDATA[The recent ash soils of New Zealand cover extensive areas and have unusual properties.  Because of a dearth of road metal, the shower material itself must in some instances be used for pavement construction.  The first part of this paper describes how classification of soils by showers, and the systematic tabulation of the results of soil surveys, pavement investigations, and field control testing, are used to develop design criteria and to produce summarizing charts and reports for each soil.  In the second part of the paper the unusual properties and the problems encountered in testing and construction are discussed (A).]]></description>
      <pubDate>Fri, 24 Aug 2012 23:41:21 GMT</pubDate>
      <guid>https://trid.trb.org/View/1209219</guid>
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      <title>Moisture and regional studies: group report</title>
      <link>https://trid.trb.org/View/1209134</link>
      <description><![CDATA[This group report summarises the following papers: an investigation of road foundations in East Africa (Williams=FHP and Russam=K and O'Reilly=MP); regional surveys of roadmaking materials illustrated by work in Borneo (Beaven=PJ and Clare=KE); the pedological pattern of soil occurrences as the basis for an Australia wide study of the engineering characteristics of soils in relation to pavement design and construction (Aitchison=GD and Metcalf=JB and Richards=BG).]]></description>
      <pubDate>Fri, 24 Aug 2012 23:39:11 GMT</pubDate>
      <guid>https://trid.trb.org/View/1209134</guid>
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      <title>Regional surveys of roadmaking materials illustrated by work in Borneo</title>
      <link>https://trid.trb.org/View/1209086</link>
      <description><![CDATA[Regional surveys of the occurrence and engineering properties of soils and other roadmaking materials are made to help in the development of improved techniques of road planning and building, and to aid the teaching of civil engineering.  In North Borneo, the scarcity of good roadstone focuses attention on the soils; an engineering soil classification is presented, and examples are given showing how the nature of the parent rock and drainage influence the characteristics of the soils.  Vegetation can be used to identify and locate soils, and the preparation of a road materials map is briefly discussed (A).]]></description>
      <pubDate>Fri, 24 Aug 2012 23:38:01 GMT</pubDate>
      <guid>https://trid.trb.org/View/1209086</guid>
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    <item>
      <title>The pedological pattern of soil occurrences as the basis for an Australia wide study of the engineering characteristics of soils in relation to pavement design and construction</title>
      <link>https://trid.trb.org/View/1209082</link>
      <description><![CDATA[The pedological system of soil classification and mapping is well established in Australia.  At the category of great soil group this classification indicates the broad pattern of soil material occurrences throughout the continent and also reflects to some degree the past and present climatic influences exerted on the soils.  The great soil group category has therefore been selected as the best available basis for an Australia wide programme of sampling and of instrumentation to determine both the intrinsic properties of all of the major soil materials and the external (climatic) influences which may dominate pavement performance.  An account of the operation of the initial phases of each aspect of this long term programme is given (A).]]></description>
      <pubDate>Fri, 24 Aug 2012 23:37:55 GMT</pubDate>
      <guid>https://trid.trb.org/View/1209082</guid>
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      <title>Rock and soil classification for engineering purposes</title>
      <link>https://trid.trb.org/View/1208585</link>
      <description><![CDATA[The procedures to be adopted in the classification of rock and soil are outlined in the attached appendices, viz; appendix 1 engineering classification of soils (other than for flexible pavement design). Appendix 2 engineering classification of rocks.  Appendix 3 table of geological features and resultant defects in cuttings (a).]]></description>
      <pubDate>Fri, 24 Aug 2012 23:14:46 GMT</pubDate>
      <guid>https://trid.trb.org/View/1208585</guid>
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    <item>
      <title>International Conference on Applications of Statistics and Probability in Soil and Structural Engineering, 3rd, Sydney, Jan 29 - Feb 2, 1979; proceedings. volumes 1 to 3</title>
      <link>https://trid.trb.org/View/1207193</link>
      <description><![CDATA[Papers presented at the conference were in separate sessions on statistical techniques and data analysis, extreme value theory, structural load systems, soil classification and site investigation, material properties of steel, concrete and timber, pavements, slope stability, foundations, structural response, safety, reliability, risk, analysis and insurance, optimization, cost benefit analysis, specifications, earthquakes, and human factors and errors.]]></description>
      <pubDate>Fri, 24 Aug 2012 22:17:48 GMT</pubDate>
      <guid>https://trid.trb.org/View/1207193</guid>
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