<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>FUNDAMENTAL ASPECTS OF MECHANICAL BEHAVIOUR OF HS/HPC: THE EUROPEAN APPROACH</title>
      <link>https://trid.trb.org/View/511704</link>
      <description><![CDATA[High strength concrete applications were pioneered in Europe in the 1970s.  As for developments in the field of normal strength concrete, most of the enterprise seems to have been a rather haphazard undertaking.  In this paper a plea is made for a more rational approach, where combined experimental and numerical research is carried out at the micro-, meso- and macro-level.  In contradiction to current practice in research in normal strength concrete, it is shown that the highest possible demands should be made for the conditions under which the characteristics of the new materials are measured.  In all, a more scientific approach is advocated, and an example of a large project in The Netherlands is given.]]></description>
      <pubDate>Tue, 27 Nov 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511704</guid>
    </item>
    <item>
      <title>MATERIAL ASPECTS OF HIGH PERFORMANCE CONCRETE</title>
      <link>https://trid.trb.org/View/511708</link>
      <description><![CDATA[A five-fold increase in compressive strength of concrete has been achieved using primarily conventional materials.  This dramatic improvement is made by recognizing that the microstructure of concrete can be tailored to produce beneficial effects.  Characteristics of normal, high, and ultra high strength concrete are described.  Composition and microstructure of ultra high strength are presented.  Characterizing high strength concrete in compression requires careful consideration of the following factors: type of feedback signal in closed-loop testing, specimen dimensions, gage length and the boundary conditions.  The influence of these factors on the strain development and wide spread use of high performance concrete requires a thorough understanding of the underlying relationships among processing, microstructure, properties and performance.]]></description>
      <pubDate>Tue, 27 Nov 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511708</guid>
    </item>
    <item>
      <title>THE USE OF HIGH REACTIVITY METAKAOLIN IN HIGH PERFORMANCE CONCRETE</title>
      <link>https://trid.trb.org/View/511709</link>
      <description><![CDATA[Results are presented from laboratory investigations on the durability of concrete containing high-reactivity metakaolin (HRM), a pozzolan manufactured by processing purified kaolinitic clay.  Expansion tests on concrete prisms and mortar bars containing reactive aggregates indicated that up to 15% HRM may be required to prevent deleterious expansion due to alkali-silica reactivity.  The efficacy of HRM in this role is likely linked to the substantial reduction in pore solution alkalinity determined for pastes with 20% HRM compared to control specimens.  Bulk diffusion testing indicated that HRM substantially reduced chloride ion penetration in concrete with W/CM = 0.30 and 0.40.  Reductions in diffusion coefficients compared to control specimens were of the order of 50% and 60% for concrete with 8% and 12% HRM, respectively.  Such reductions can be expected to have a substantial impact on the service life of reinforced concrete in chloride environments.  Chloride binding tests indicated that 8% HRM increases the binding capacity of hydrated pastes cast with a moderate C3A cement.]]></description>
      <pubDate>Tue, 27 Nov 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511709</guid>
    </item>
    <item>
      <title>APPLICATIONS OF HIGH PERFORMANCE CONCRETE TO THE PRESTRESSED BRIDGE GIRDER INDUSTRY</title>
      <link>https://trid.trb.org/View/511691</link>
      <description><![CDATA[Tests were conducted on 7000 concrete cylinder specimens to investigate the mechanical properties and durability of high performance concrete (HPC).  The main factor affecting the material performance was the aggregate type.  In addition, two long-span prestressed bridge girders were fabricated to investigate the structural performance of members cast with HPC. Transfer lengths of large diameter strand in HPC were conservatively predicted by current design practice.  There was no stiffness degradation observed through three million cycles of service loads, and ultimate shear strengths were predicted conservatively using current design procedures.]]></description>
      <pubDate>Sat, 24 Nov 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511691</guid>
    </item>
    <item>
      <title>TIME-DEPENDENT EFFECTS IN PRESTRESSED CONCRETE COMPOSITE BRIDGE MEMBERS</title>
      <link>https://trid.trb.org/View/511692</link>
      <description><![CDATA[This paper shows how to take advantage of reduced creep and shrinkage parameters associated with high performance concrete (HPC) in better predicting prestress losses and deflections at various stages of construction and bridge service.  Three examples are presented to illustrate the theory and the significance of accurate analysis compared to standard multipliers.]]></description>
      <pubDate>Sat, 24 Nov 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511692</guid>
    </item>
    <item>
      <title>SHEAR STRENGTH OF HIGH PERFORMANCE CONCRETE (HPC) I-GIRDERS</title>
      <link>https://trid.trb.org/View/511688</link>
      <description><![CDATA[Due to recent optimization of I-girder shapes for maximum flexural efficiency and increasing use of high performance concrete (HPC), shear strength controlled member design is possible.  The purpose of this research is to theoretically and experimentally establish a limit on shear capacity before member size must be increased.  Recent experiments have shown that a key factor is anchorage of the prestressing steel at the member end.]]></description>
      <pubDate>Sat, 24 Nov 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511688</guid>
    </item>
    <item>
      <title>PROVISIONS IN U.S. CODES RELATED TO HIGH-STRENGTH CONCRETE</title>
      <link>https://trid.trb.org/View/511713</link>
      <description><![CDATA[High-strength concrete often has properties that are different from those of the corresponding properties of normal-strength concrete.  Building code provisions, originally developed with normal-strength concrete in mind, have had to be adjusted in recent years in recognition of the above fact.  The process is still continuing.  This paper surveys the code situation concerning high-strength concrete at the time of writing (mid-1997).]]></description>
      <pubDate>Sun, 28 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511713</guid>
    </item>
    <item>
      <title>HIGH STRENGTH CONCRETE: DESIGN ISSUES IN THE CANADIAN CODE</title>
      <link>https://trid.trb.org/View/511714</link>
      <description><![CDATA[The provisions of the 1994 CSA Standard for the Design of Concrete Structures, concerning the design of structural members made with high-strength concrete, are described.  In particular those code clauses that differ from the 1984 CSA Standard and the 1995 ACI Code are highlighted.]]></description>
      <pubDate>Sun, 28 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511714</guid>
    </item>
    <item>
      <title>DESIGN AND CONSTRUCTION OF THE HIGHEST REINFORCED CONCRETE (RC) BUILDING IN JAPAN</title>
      <link>https://trid.trb.org/View/511715</link>
      <description><![CDATA[The highest reinforced concrete (RC) building in Japan was completed in 1996.  It is 45-story or 160m-tall.  This paper outlines its structural design and the practical construction method, and describes R&D into high-strength materials used in its construction.]]></description>
      <pubDate>Sun, 28 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511715</guid>
    </item>
    <item>
      <title>HIGH PERFORMANCE BRIDGES</title>
      <link>https://trid.trb.org/View/511716</link>
      <description><![CDATA[This paper describes the application of high performance materials, in particular high strength concrete, to innovative bridge structures.  Complementary use of high performance steel, concrete and advanced composite materials in bridges will result in the development of new and innovative bridge forms that utilize the unique properties of high performance materials more effectively.]]></description>
      <pubDate>Sun, 28 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511716</guid>
    </item>
    <item>
      <title>APPLICATION OF HIGH STRENGTH AND SELF-COMPACTING CONCRETE FOR CONTINUOUS DIAPHRAGM WALLS</title>
      <link>https://trid.trb.org/View/511717</link>
      <description><![CDATA[Newly developed self-compacting concrete having required strength of 80 N/(mm square) was used in construction of continuous underground diaphragm walls.  The laboratory test results on material selection and mix proportioning of the concrete are reported.  Also discussed are the site investigations on the quality control procedures in manufacturing concrete and physical properties of the concrete cast in the structure.]]></description>
      <pubDate>Sun, 28 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511717</guid>
    </item>
    <item>
      <title>RESEARCH ACTIVITIES ON HIGH STRENGTH CONCRETE AND ITS APPLICATION IN JAPAN</title>
      <link>https://trid.trb.org/View/511718</link>
      <description><![CDATA[The research on high strength concrete to construct prestressed concrete piles, precast or precast-prestressed concrete elements and prestressed concrete structures started in the early 1970's in Japan.  The research on high strength concrete continued in the 1980's at several universities and research institutes, to utilize it for the construction of high rise reinforced concrete buildings.  However, design guidelines had not been fully developed for reinforced concrete buildings with concrete compressive strengths higher than 35.3 MPa.  Therefore, in 1988 the Japanese Building Research Institute initiated the "New RC Project", aimed at establishing design guidelines for buildings constructed using high strength concrete.  This paper presents the overview of research work on high strength concrete and its application to building structures in Japan. including the results of the New RC project.]]></description>
      <pubDate>Sun, 28 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511718</guid>
    </item>
    <item>
      <title>PRACTICAL USE OF HIGH-STRENGTH AND HIGH-FLOWABLE CONCRETE TO BE FILLED INSIDE THE STEEL TUBE COLUMNS</title>
      <link>https://trid.trb.org/View/511719</link>
      <description><![CDATA[This paper presents a special project on the construction of the composite concrete filled steel tube column system.  For the project, filled-in concrete required not only the high design compressive strength of 55 MPa and also the high flowability of 26 + or - 1cm slump with 60 + or - 7cm flow.  Laboratory test and full scale site mock-up test were performed to clarify the material characteristics, to produce the optimal mix design proportion and to simulate the actual construction conditions.]]></description>
      <pubDate>Sun, 28 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511719</guid>
    </item>
    <item>
      <title>CRACK GROWTH IN FOUR CONCRETES UNDER MONOTONIC OR CYCLIC SPLITTING LOAD</title>
      <link>https://trid.trb.org/View/511703</link>
      <description><![CDATA[Aimed at understanding the fatigue mechanisms of concrete structures, samples of four concrete mixtures, including two plain concrete, a lytag and a high strength concrete (HSC) were tested using a splitting test facility in the Stevin Laboratory. Both monotonic and cyclic loading tests were conducted to investigate crack development in these concrete materials.  In the tests, load and crack mouth opening displacement (CMOD) were measured using a pair of load cells and two LVDTs mounted across the notch on both the front and back sides of a sample.  A QUESTAR Remote Measurement System was used to monitor and record the crack growth in the studied concrete materials.  Observations of crack patterns and crack growth are presented in this paper. Crack bridging and deflection are found as main mechanisms in crack growth and propagation.  In addition, friction bridging is identified as a type of bridging.  This type of bridging originates from the broken grain/ligament bridges and deflection locations.  Furthermore, it is pointed out that friction bridging contributes to both crack closure and opening force.]]></description>
      <pubDate>Sat, 27 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511703</guid>
    </item>
    <item>
      <title>THERMAL PERFORMANCE OF CONCRETES INCLUDING HIGH STRENGTH CONCRETE (HSC)</title>
      <link>https://trid.trb.org/View/511710</link>
      <description><![CDATA[When considering the energy efficient design of buildings, one of the most fundamental thermo-physical properties which must be known about the materials being used is their thermal conductivity.  At Leeds, thermal conductivity measurements have been made on many concretes in the density range 1550 to 2341 kg/(m cubed) (failure stress 4.4 to 55.5 MPa) and compared to the thermal performance of high strength concrete (HSC) with densities of 2269 and 2386 kg/(m cubed) (failure stress 83 MPa and 113 MPa, respectively, at 28 days).  The thermal conductivity of the concretes was measured in accordance with BS 874 (1988), using a plane hot-plate technique.  All the measured values of thermal conductivity were corrected to 3% moisture content and used to propose a design curve relating thermal conductivity to density over the range 1550 to 2386 kg/(m cubed), 4.4 MPa to 113 MPa, respectively.]]></description>
      <pubDate>Sat, 27 Nov 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/511710</guid>
    </item>
  </channel>
</rss>