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This collection contains technical reports and publications of the Infrastructure Research Institute.

Recent Submissions

  • Anchorage of Conventional and High-Strength Headed Reinforcing Bars 

    Shao, Yun; Darwin, David; O'Reilly, Matthew; Lequesne, Remy; Ghimire, Krishna; Hano, Muna (University of Kansas Center for Research, Inc., 2016-08)
    Headed bars are often used to anchor reinforcing steel as a means of reducing congestion where member geometry precludes adequate anchorage with a straight bar. Currently, limited data on the behavior of headed bars are ...
  • Reduced Brace Section (RXS) Proof of Concept: Phase 1B 

    Bonetti, Santiago; Roddis, W. M. Kim; Matamoros, Adolfo B. (University of Kansas Center for Research, Inc., 2006-01)
    This report presents the results from the second phase of a proof-of-concept series of tests of the reduced braced section (RXS) system. This system is intended to provide a cost-effective alternative for the design of ...
  • Charts for Preliminary Selection of NU Girder Sections Based On Kansas Department of Transportation LRFD Design Guidelines for Prestressed Concrete Beams 

    Carlton, Kelly; Lequesne, Remy D. (University of Kansas Center for Research, Inc., 2016-05)
    The Kansas Department of Transportation, which currently uses a series of standard prestressed concrete beam sections referred to as K-girders for prestressed beam bridge projects, is considering a switch to use of NU ...
  • Effect of a Rheology Modifier on Settlement Cracking of Concrete 

    Al-Qassag, Osama; Darwin, David; O’Reilly, Matthew (University of Kansas Center for Research, Inc., 2016-04)
    Thirty-one test specimens containing concrete with a 27 percent cement paste content and a water-to-cement ratio of 0.45 were used to evaluate the effectiveness of a rheology modifier in the form of a dry viscosity modifying ...
  • Effect of Synthetic Fibers and a Rheology Modifier on Settlement Cracking of Concrete 

    Al-Qassag, Osama; Darwin, David; O’Reilly, Matthew (University of Kansas Center for Research, Inc., 2015-12)
    Three series of concrete mixtures, consisting of 133 batches, were tested. The first series consisted of 27 control mixtures with a 24.3 percent cement paste content by volume and a water-to-cement ratio of 0.5. The second ...
  • Fabrication error Indexed eXamples and Solutions: FIXS 

    Wang, Xiuzhen; Roddis, W. M. Kim (University of Kansas Center for Research, Inc., 1999-06)
    The major goal of the Regional/National Bridge Fabrication Error Expert System research project is to develop a sharable and well reasoned bridge fabrication error repair database which can be used by several state: DOTs ...
  • Torsion of Exterior Girders of a Steel Girder Bridge During Concrete Deck Placement Loads: Field Test Report 

    North, Thomas L.; Roddis, W. M. Kim (University of Kansas Center for Research, Inc., 1999-03)
    This report is the second part of a two part report. The first part is written and developed as a design aid to determine the torsion acting on outside steel bridge girders during concrete deck placement. This second part ...
  • Steel Bridge Fabrication Errors Indexed Examples and Solutions: Combining Rules and Cases 

    Greenfield, Richard R.; Roddis, W. M. Kim (University of Kansas Center for Research, Inc., 1998-06)
    This research focuses on the development of a knowledge-based system in the domain of steel bridge fabrication errors using both rule-based reasoning (RBR) and case-based reasoning (CBR). Fabrication error Indexed and ...
  • Evaluation of Corrosion Resistance of Type 304 Stainless Steel Clad Reinforcing Bars 

    Kahrs, Jason T.; Darwin, David; Locke, Carl E. Jr. (University of Kansas Center for Research, Inc., 2001-08)
    The corrosion performance of a prototype 304 stainless steel clad reinforcing bar and conventional reinforcing steel is compared based on corrosion potential and macrocell corrosion tests. Tests are conducted on bare bars ...
  • Graffiti Resistance of Wax-based and Epoxy-based Coatings on Steel and Concrete Substrates 

    Carter, Nicole; O'Reilly, Matt (University of Kansas Center for Research, Inc., 2016-01)
    The graffiti resistance of two coatings developed by MicroCor Technologies, Inc. – MicroCor-300 and MicroCor-500 – was analyzed on steel and concrete substrates. The coatings were tested in accordance with ASTM D6578 ...
  • Mapping the Rainfall Event for Stormwater Quality Control 

    Young, Bryan (University of Kansas Center for Research, Inc., 2006-07)
    Stormwater runoff from transportation facilities and urban areas can contain significant concentrations of suspended solids, metals, and oil and grease. In some cases, best management practices (BMPs) are required for ...
  • Effects of Construction Procedures on Bond in Bridge Decks 

    Donahey, Rex C.; Darwin, David (University of Kansas Center for Research, Inc., 1983-06)
    The effects of consolidation method and two-course construction on concrete-steel bond in concrete bridge decks are studied as functions of slump, bleed, and depth of slab. The consolidation was varied by vibrator spacing ...
  • Evaluation of Corrosion Resistance of Microalloyed Reinforcing Steel 

    Balma, Javier; Darwin, David; Browning, JoAnn P.; Locke, Carl E. Jr. (University of Kansas Center for Research, Inc., 2002-12)
    The corrosion resistance of three microalloyed steels and two conventional reinforcing steels in concrete is evaluated. The microalloyed steels contain concentrations of chromium, copper, and phosphorus that, while low, ...
  • Design of composite beams with web openings 

    Darwin, David (University of Kansas Center for Research, Inc., 2000)
    Design techniques for composite beams with web openings have been under development for well over 30 years. During the past decade, these efforts have reached a level of maturity that allows for an accurate assessment of ...
  • Equation Discovery in Databases from Engineering 

    Unknown author (University of Kansas Center for Research, Inc., 1999-04)
    As the quantity of electronically generated engineering data grows rapidly, building computer systems to analyze data automatically and intelligently becomes increasingly important to engineers. The overall process of ...
  • Effects of Traffic Induced Vibrations on Bridge Deck Repairs 

    Harsh, Shraddhakar; Darwin, David (University of Kansas Center for Research, Inc., 1984-01)
    The effects of traffic induced vibrations on concrete-steel bond strength and concrete compressive strength was studied for full depth repairs of reinforced concrete bridge decks. The specimens had blockouts to represent ...
  • Anchorage Strength of Conventional and High-Strength Hooked Bars in Concrete 

    Sperry, Jayne; Darwin, David; O'Reilly, Matt; Lequesne, Remy D. (University of Kansas Center for Research, Inc., 2015-12)
    Key factors affecting the anchorage strength of hooked bars are investigated and design guidelines for the development length of hooked bars that apply to both conventional and highstrength steel and concrete are presented. ...
  • Evaluation of Stainless Steel Clad Reinforcing Bars 

    Darwin, David; Locke, Carl E. Jr.; Balma, Javier; Kahrs, Jason T. (University of Kansas Center for Research, Inc., 1999-07)
    The corrosion performance of stainless steel clad reinforcing bars provided by Structural Metals, Inc. is compared with that of conventional (black) reinforcement. 304 stainless steel is used as the cladding material. The ...
  • Influence of Adhesion at Steel/Mortar Interface on Corrosion Characteristics of Reinforcing Steel 

    Axelsson, Henrik; Darwin, David; Locke, Carl E. Jr. (University of Kansas Center for Research, Inc., 1999-08)
    The mechanism of corrosion of reinforcing steel in concrete is discussed based on electrochemical and electron microscopy observations. The importance of calcium hydroxide precipitation on the steel surf ace in the ...
  • Parametric Study of a Cable-Stayed Bridge Under Seismic Loads 

    Mayer, Sven; McCabe, Steven L. (University of Kansas Center for Research, Inc., 1998-09)
    The topic of this paper is a parametric study of a cable-stayed bridge under seismic loads. The bridge modeled in this study is the Bill Emerson Bridge crossing the Mississippi River at Gape Girardeau in Missouri. A ...

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785-864-8983
KU Libraries
1425 Jayhawk Blvd
Lawrence, KS 66045
785-864-8983

KU Libraries
1425 Jayhawk Blvd
Lawrence, KS 66045