<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>Self-Consolidating Concrete for Prestressed Applications—Phase I: Girder Fabrication and Pre-Erection Performance</title>
      <link>https://trid.trb.org/View/1372837</link>
      <description><![CDATA[Prior to statewide acceptance of self-consolidating concrete (SCC) in precast, prestressed bridge member production, the Alabama Department of Transportation sponsored an investigation of the material to be performed by the Auburn University Highway Research Center. Two parts of that research are presented in this report: a laboratory investigation of fresh stability test methods to quantify the unique fresh behavior of SCC, and a field investigation of as-built material and pre-erection structural behavior in the first full-scale SCC girders produced in Alabama for an in-service bridge. During the laboratory investigation, the Visual Stability Index, Sieve Stability, and Surface Settlement tests correlated most strongly to multiple measures of hardened concrete uniformity; a testing protocol utilizing these test methods is recommended. Use of SCC in girder production was clearly beneficial. The utilized SCC mixture exhibited practically the same compressive strength, slightly reduced elastic stiffness, and increased time-dependent deformation (creep and shrinkage), at least in representative cylinders. However, the differences were expectable due to differences between the utilized SCC and vibrated concrete (VC). Also, SCC-girder transfer lengths, initial cambers, initial prestress losses, pre-erection time-dependent camber growth, and pre-erection time-dependent prestress force were found to be acceptably similar and at least as predictable as in companion, geometrically identical VC girders. Therefore, pre-erection behavior of SCC should not restrict its use in the production of precast, prestressed girders using current design and production procedures.]]></description>
      <pubDate>Thu, 29 Oct 2015 16:25:43 GMT</pubDate>
      <guid>https://trid.trb.org/View/1372837</guid>
    </item>
    <item>
      <title>Self-Consolidating Concrete for Prestressed Applications—Phase II: Bridge Construction and In-Place Performance</title>
      <link>https://trid.trb.org/View/1371861</link>
      <description><![CDATA[Prior to statewide acceptance of self-consolidating concrete (SCC) in precast, prestressed bridge member production, the Alabama Department of Transportation sponsored an investigation of the material to be performed by the Auburn University Highway Research Center. Two parts of that research are presented in this report: an extension of an earlier laboratory investigation of fresh stability test methods to quantify the unique fresh behavior of SCC, and a field investigation of as-built material and long-term structural behavior in the first full-scale SCC girders produced and placed in an in-service bridge in Alabama. During the laboratory investigation, the Visual Stability Index, Sieve Stability, and Surface Settlement tests correlated most strongly to multiple measures of hardened concrete uniformity; a testing protocol utilizing these test methods is recommended. In the field investigation, the utilized SCC exhibited slightly increased time-dependent creep and shrinkage, at least in representative cylinders. Long-term SCC-girder prestress maintenance was found to be practically identical and at least as conservatively predictable as in companion, geometrically identical vibrated-concrete (VC) girders. Full-scale elastic responses to the weight of the cast-in-place deck and to service-level live loads were also practically identical in the SCC and VC girders, and SCC performed more conservatively than expected of VC of the same elastic stiffness. Use of cylinder-measured mechanical and time-dependent property results led to conservative predictions of full-scale behavior, and use of design properties led to highly conservative predictions. Based on these results, SCC is an acceptable alternative to VC for precast, prestressed girders when using current design and production procedures.]]></description>
      <pubDate>Mon, 26 Oct 2015 09:12:12 GMT</pubDate>
      <guid>https://trid.trb.org/View/1371861</guid>
    </item>
    <item>
      <title>Shear Friction of Reinforced Self-Compacting Concrete Members</title>
      <link>https://trid.trb.org/View/920258</link>
      <description><![CDATA[This paper describes how aggregate interlock along inclined cracks is one of the basic mechanisms that contribute to the shear resistance of reinforced concrete members. In self-compacting-concrete (SCC) the amount of coarse aggregates is lower than in conventional vibrated concrete (CVC). This different grading could have an influence on the aggregate interlock. To study this effect, push-off tests are carried out. The shear plane of the specimen is crossed by steel bars resulting in reinforcement ratios ranging between 0.45 and 2.68%. It follows that the experimentally determined shear friction of self-compacting concrete is slightly higher than the shear friction of CVC. However, the vertical displacement corresponding with the ultimate shear strength is larger.]]></description>
      <pubDate>Mon, 28 Jun 2010 15:04:47 GMT</pubDate>
      <guid>https://trid.trb.org/View/920258</guid>
    </item>
    <item>
      <title>Effect of Reinforcing Bar Orientation and Location on Bond with Self-Consolidating Concrete</title>
      <link>https://trid.trb.org/View/794328</link>
      <description><![CDATA[Self-consolidating concrete (SCC) is more workable than vibrated concrete (VC) when it is fresh.  This workability supports the use of SCC in congested and restricted areas without adding vibration.  However, there are also some differences in the concretes once they have hardened.  This article reports on a study of the effect of reinforcing bar orientation and location on steel-concrete bond behavior. The study used SCCs and two VCs and the concrete casting direction is always vertical. For small-size concrete elements, SCC25 shows a better resistance against bleeding than VC25. The difference, however, is not significant for SCC40 and VC40. For samples reinforced with ribbed bars, the orientation of the bars (horizontal or vertical) has a significant and equivalent influence on both 25 MPa (3625 psi) concretes. The VC40 and SCC40 bond strength values are almost equivalent and not affected by the orientation of the bars. For tall concrete elements, voids formation under the horizontal bars was clearly observed for every type of concrete. The authors note that the size of the voids was almost equivalent for SCC25, SCC40, and VC40, but significantly larger in the case of VC25, especially near the top casting surface. Finally, the ultimate bond strengths (not affected by the casting conditions) obtained were approximately 20% higher for SCC than for VC, regardless of the concrete strength, for samples reinforced with ribbed bars.]]></description>
      <pubDate>Tue, 28 Nov 2006 11:31:18 GMT</pubDate>
      <guid>https://trid.trb.org/View/794328</guid>
    </item>
    <item>
      <title>SHRINKAGE AND CREEP OF HIGH-PERFORMANCE SELF-COMPACTING CONCRETE (HPSCC). IN: AUTOGENOUS DEFORMATION OF CONCRETE</title>
      <link>https://trid.trb.org/View/742873</link>
      <description><![CDATA[This paper describes an experimental investigation of the fresh properties, strength and elastic modulus, shrinkage, and creep in high-performance self-compacting concrete (HPSCC). Optimizations were performed on a laboratory scale according to an ideal grading of the particles in the fresh concrete for SCC, with high strength, high durability in marine environment or with fire spalling safety.  SCC was introduced in the full-scale production of beams and piles.  The results showed high slump flow and robustness that allowed for a reasonable variation of the water-cement ratio (w/c), keeping the fresh concrete properties within the limits of the full-scale production even at elevated temperature.  The early strength development was extremely high even though w/c was slightly higher in the SCC than in vibrated concrete (NC).  Internal frost resistance was improved for SCC compared with NC but the chloride migration was larger in SCC with limestone powder than in NC.  Spalling of the concrete during fire, especially in low w/c concrete, was avoided by use of polypropylene fibers.  The elastic modulus was slightly smaller in SCC than in NC due to lower aggregate content in SCC than in NC. Creep, shrinkage, salt frost scaling and sulfate resistance did not differ much from the corresponding properties of NC.]]></description>
      <pubDate>Wed, 20 Oct 2004 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/742873</guid>
    </item>
  </channel>
</rss>