<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>A PROCEDURE FOR EVALUATING FRACTURE DYNAMIC PARAMETERS FROM CRACK VELOCITY MEASUREMENTS</title>
      <link>https://trid.trb.org/View/51747</link>
      <description><![CDATA[A combined numerical and experimental procedure for evaluating some of the fracture dynamic parameters which govern the crack run-arrest response in a fracturing plate are discussed.  A dynamic finite element code is used to compute the dynamic stress intensity factor and dynamic energy release rate associated with a propagating crack which is driven by the experimentally determined crack velocity.  Numerical results generated by the developed procedure are then compared with dynamic stress intensity factors obtained through dynamic photoelastic analysis of fracturing Homalite-100 plates.  Two edge-cracked specimens with fixed edge displacement loadings and two wedge-loaded double cantilever beam specimens were considered in this comparative study.  Good agreements were obtained between the results obtained by the developed numerical-experimental procedure and dynamic photoelasticity.]]></description>
      <pubDate>Wed, 04 Aug 2004 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/51747</guid>
    </item>
    <item>
      <title>CONTROL OF PLASTIC SHRINKAGE CRACKING WITH SPECIALTY CELLULOSE FIBERS</title>
      <link>https://trid.trb.org/View/539841</link>
      <description><![CDATA[Specialty cellulose fibers processed for the reinforcement of concrete offer relatively high levels of elastic modulus and bond strength.  The hydrophilic surfaces of cellulose fibers facilitate their dispersion and bonding in concrete.  Cellulose fibers have small effective diameters that are comparable to the cement particle size, and thus promote close packing and development of a dense bulk and interface microstructure in the matrix.  The relatively high surface area and the close spacing of cellulose fibers when combined with their desirable mechanical characteristics make them quite effective in the suppression and stabilization of microcracks in the concrete matrix.  The investigation reported concerns the effects of specialty cellulose fibers on the restrained plastic shrinkage cracking of conventional and high-performance concrete.  Cellulose fibers were used at 0.06% volume fraction, which is equivalent to a fiber content of 0.9 kg/cu m (1.5 lb/cu yd).  Plastic shrinkage cracks occur when the early-age shrinkage movements (prior to final set) are restrained; this commonly occurs on the surfaces of concrete flatwork in windy, hot, and dry conditions that promote rapid evaporation.  Under such conditions, a moisture gradient develops in concrete that produces internal restraint against shrinkage movements of the surface layers.  In the experimental program on restrained shrinkage cracking of conventional and high-performance concrete, noting that plastic shrinkage cracking test results show an inherently high variability, statistical analysis of replicated test results confirmed that cellulose fibers are effective in reducing the plastic shrinkage cracking of conventional and high-performance concrete.  Cellulose fibers had statistically comparable effects on plastic shrinkage cracking of conventional and high-performance concrete.]]></description>
      <pubDate>Thu, 11 Oct 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/539841</guid>
    </item>
    <item>
      <title>THE CRACK GROWTH MECHANISM IN ASPHALTIC MIXES</title>
      <link>https://trid.trb.org/View/457724</link>
      <description><![CDATA[The crack growth mechanism in asphalt concrete (AC) mixes is studied. In cyclic tests on several asphaltic mixes crack growth is measured, both with crack foils and with COD-gauges. It is found that crack growth in asphaltic mixes is described by three processes which are parallel in time: cohesive crack growth in the mortar, adhesive crack growth between the mortar and the aggregates and a crack stoppers process. Differences in overall crack growth in asphalt concrete are due to differences in the contributions of each individual process to the overall process.]]></description>
      <pubDate>Tue, 20 Feb 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/457724</guid>
    </item>
    <item>
      <title>GEOSYNTHETICS. COMBINING THEORY WITH PRACTICE</title>
      <link>https://trid.trb.org/View/541093</link>
      <description><![CDATA[Geogrids are increasingly being used in pavement design. Their use can reduce deflection and give better performance and crack control. It allows the designer to opt for either a thinner pavement which will still provide a satisfactory design life or alternatively, if incorporated into a standard pavement design, it will result in an extended life.]]></description>
      <pubDate>Fri, 20 Nov 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/541093</guid>
    </item>
    <item>
      <title>FLEXURAL BEHAVIOR OF CONCRETE BEAMS WITH WELDED WIRE FABRIC AS SHEAR REINFORCEMENT</title>
      <link>https://trid.trb.org/View/541120</link>
      <description><![CDATA[This study investigated the flexural behavior of beams with welded wire fabric (WWF) as shear reinforcement.  A total of 32 beam specimens were tested.  Fifteen of them contained closed type conventional steel bars as shear reinforcement, while the others contained WWF as shear reinforcement.  The parameters studied included concrete strength, shear span to depth ratio, amount of fly ash, amount of longitudinal reinforcement, and amount of transverse reinforcement.  The results show that the flexural strengths of beams with either conventional or WWF shear reinforcement are higher than those predicted by the American Concrete Institute Code method.  Beams with WWF shear reinforcement exhibit higher strength than those with conventional shear reinforcement because of better confinement. The ductility and crack control of beams with WWF shear reinforcement are also better than those containing conventional shear reinforcement.]]></description>
      <pubDate>Thu, 05 Nov 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/541120</guid>
    </item>
    <item>
      <title>UNIFIED MINIMUM FLEXURAL REINFORCEMENT REQUIREMENTS FOR REINFORCED AND PRESTRESSED CONCRETE MEMBERS. DISCUSSION AND CLOSURE</title>
      <link>https://trid.trb.org/View/541129</link>
      <description><![CDATA[A discussion of a paper with the aforementioned title by C.L. Freyermuth and B.O. Aalami, published in this journal (Volume 94, Number 4, July-August 1997), is presented.  The discussion addresses some observations regarding flexural capacity, brittle and ductile behavior, adequate crack control, and minimum reinforcement limits, in light of published test results and existing code provisions.  Discussion is followed by closure from the authors.]]></description>
      <pubDate>Thu, 05 Nov 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/541129</guid>
    </item>
    <item>
      <title>ULTIMATE SHEAR CAPACITY OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH WEB-BONDED FIBER-REINFORCED PLASTIC PLATES</title>
      <link>https://trid.trb.org/View/635801</link>
      <description><![CDATA[The ultimate shear capacity of reinforced concrete beams can be increased by epoxy-bonding fiber-reinforced plastic (FRP) plates to the web of the beam.  The shear crack inclination angle is changed as a result of bonding of the plate.  In this paper, truss analogy and compression field theory are used to determine the effect of the FRP plate on the shear capacity and crack inclination angle of reinforced concrete beams at ultimate state. Following the calculation of the crack inclination angle, the equilibrium and compatibility equations are used to obtain the shear force resisted by the plate.  A parametric study was carried out to reveal the effect of important parameters such as plate thickness and fiber orientation on the crack inclination angle and shear capacity.  The upper bound value of crack inclination angle found in this study is suggested as a conservative value for determining the shear capacity of the retrofitted beam.  Knowing the inclination angle of cracks, the shear force in the composite plate and concrete beam can be calculated and used for the design of this type of beam.  The results of this method have shown close agreement to experimental results.]]></description>
      <pubDate>Mon, 07 Sep 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/635801</guid>
    </item>
    <item>
      <title>ANALYSIS OF CRACKED PRESTRESSED CONCRETE SECTIONS: A PRACTICAL APPROACH</title>
      <link>https://trid.trb.org/View/539098</link>
      <description><![CDATA[This paper presents a practical approach for analyzing the elastic behavior of cracked prestressed concrete sections of any shape, using existing section property software.  The use of the results for estimating deflection and crack control is presented. The method is applicable to sections with any degree of prestress, from no prestress to full prestress.  Examples are given, including the analysis of cracked composite sections. The procedural steps for analyzing cracked prestressed concrete sections are summarized.]]></description>
      <pubDate>Wed, 02 Sep 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/539098</guid>
    </item>
    <item>
      <title>ASPHALT ANTI-CRACK OVERLAY ON CONCRETE PAVEMENT</title>
      <link>https://trid.trb.org/View/485095</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Wed, 08 Jul 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/485095</guid>
    </item>
    <item>
      <title>PATH PLANNING FOR MACHINE VISION ASSISTED, TELEOPERATED PAVEMENT CRACK SEALER</title>
      <link>https://trid.trb.org/View/486950</link>
      <description><![CDATA[During the last few years, several teleoperated and machine-vision-assisted systems have been developed in construction and maintenance areas such as pavement crack sealing, sewer pipe rehabilitation, excavation, surface finishing, and materials handling.  This paper presents a path-planning algorithm used for a machine-vision-assisted automatic pavement crack sealing system.  In general, path planning is an important task for optimal motion of a robot whether its environment is structured or unstructured.  Manual path planning is not always possible or desirable.  A simple greedy path algorithm is utilized for optimal motion of the automated pavement crack sealer.  Some unique and broadly applicable computational tools and data structures are required to implement the algorithm in a digital image domain.  These components are described, then the performance of the algorithm is compared with the implicit manual path plans of system operators.  The comparison is based on computational cost versus overall gains in crack-sealing-process efficiency.  Applications of this work in teleoperation, graphical control, and other infrastructure maintenance areas are also suggested.]]></description>
      <pubDate>Fri, 12 Jun 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/486950</guid>
    </item>
    <item>
      <title>A BONDED PCC OVERLAY ON A D-CRACKED PAVEMENT</title>
      <link>https://trid.trb.org/View/475991</link>
      <description><![CDATA[In 1995, D-cracking was found at all joints intersections on Runway 14R/32L at the University of Illinois - Willard Airport. It was projected that by the year 2002 more than 50% of the corners would have loose or missing pieces.  Several methods to control the loose pieces were examined and a bonded PCC overlay, designed to become unbonded, was the most feasible method. During the summer of 1996, the first phase of the bonded PCC overlay was constructed on Runway 14R/32L.]]></description>
      <pubDate>Fri, 27 Feb 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/475991</guid>
    </item>
    <item>
      <title>A STRUCTURAL LOOK AT SLABS ON GRADE</title>
      <link>https://trid.trb.org/View/576226</link>
      <description><![CDATA[This article presents an opportunity to use the structural concepts of ACI318 to improve the design of slabs on grade. This article shows that bottom reinforcing is proactive in preventing cracks from appearing at the top of the slab, while top steel is reactive in trying to control cracks that it could not prevent from going through the thickness of the slab.]]></description>
      <pubDate>Wed, 13 Aug 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/576226</guid>
    </item>
    <item>
      <title>EVALUATING STRUCTURAL CRACK REPAIRS</title>
      <link>https://trid.trb.org/View/483502</link>
      <description><![CDATA[Structural crack repairs are often inappropriately specified by using descriptive or proprietary specifications. Performance specifications are the most desirable; however, an adequate quality assurance test and acceptance criterion must be established for performance specifications to be effective. Using the splitting tensile test as a potential quality assurance test and proposing an acceptance criterion based on the results of 146 such strength tests on cores drilled from repaired cracked concrete should be given some consideration.]]></description>
      <pubDate>Tue, 03 Jun 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/483502</guid>
    </item>
    <item>
      <title>CONTROL OF CRACKING IN CONCRETE STRUCTURES</title>
      <link>https://trid.trb.org/View/478388</link>
      <description><![CDATA[The principal causes of cracking in concrete and recommended crack control procedures are presented. The current state of knowledge in microcracking and fracture mechanics is discussed. The control of cracking due to drying shrinkage and crack control for flexural members, layered systems and mass concrete are covered in detail. Long-term effects on cracking are considered, and crack control procedures used in construction are presented. Information is provided to assist the engineer and the constructor in developing practical and effective crack control programs for concrete structures.]]></description>
      <pubDate>Wed, 30 Apr 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/478388</guid>
    </item>
    <item>
      <title>FRACTURE MECHANICAL MODELLING OF BRITTLE CRACK PROPAGATION AND ARREST OF STEEL (3) - APPLICATION TO DUPLEX STEEL</title>
      <link>https://trid.trb.org/View/480568</link>
      <description><![CDATA[A dynamic crack-growth model, which is based on the crack-tip local fracture stress criterion and takes account of the effect of unbroken side ligaments near the plate surfaces and crack-bowing inside the plate, is extended for simulating crack-growth and arrest behaviour in the duplex-type test.  Different local fracture stresses for starter and arrester plate are assumed.  Depending on the applied stress and temperature of the arrester plate, a crack continues to propagate or arrests in the arrester plate.  Discrepancy of arrest toughness which was observed between temperature gradient-type and duplex-type tests is reproduced by the model and its reason is explained by the different thickness and length of the unbroken side ligament between the two types of tests.]]></description>
      <pubDate>Thu, 27 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/480568</guid>
    </item>
  </channel>
</rss>