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52550
  
  

  10
May
2019
Research Results
Determining Bond-Slip Characteristics of Prestressing Tendons with Varying Geometries in Two Concrete Mixtures
Author
          Federal Railroad Administration

Subject
                    Tracks & Structures

**Keywords:** Track, ties, concrete, bond-slip, prestressing tendons
**Abstract:** Untensioned pullout tests were conducted to obtain the bond-slip characteristics of two groups of prestressing tendons used in concrete railroad tie production. The purpose of...
Report Number
              RR 19-13

  Office
              RDI-21
    19
Apr
2019
Research Results
Impact of Water on Cracked Concrete Crosstie Service Life
Author
          Federal Railroad Administration

Subject
                    Tracks & Structures

**Keywords:** Concrete crossties, water damage, center cracks, cyclic loading
**Abstract:** To investigate the impact of moisture on crack growth and other tie damage, UIUC researchers subjected pretensioned concrete crossties and small-scale beams to repeated loading...
Report Number
              DOT/FRA/ORD-19/11

  Office
              RDI-21
    8
Dec
2017
Accident Investigations
HQ-2017-1237 (Finalized)

Subject
                    Accident Investigations,
                    Freight Operations,
                    Hazardous Materials

**Keywords:** Accident Investigations, CSX, Hazardous Materials
**Abstract:** On December 8, 2017, at 2:08 p.m., EST, eastbound CSX Transportation (CSX) mixed freight Train Q40407, consisting of 3 locomotives and 141 cars (66 loads/75 empties), derailed 31...
Accident Date
              December 8, 2017

  Accident Type
              Derailment (DRM)

  Railroad Name
              CSX Transportation

  Location
              Union, NJUnited States

  Accident Number
              HQ-2017-1237

  Investigation Status
              Finalized
    29
Nov
2017
Technical Reports
Improved Concrete Crosstie and Fastening Systems for US High Speed Passenger Rail and Joint Corridors: Volume 1 – Project Summary Report
Author
          Federal Railroad Administration

Subject
                    Freight Operations,
                    Passenger Rail

**Keywords:** Concrete crossties, fastening systems, flexural behavior, mechanistic design, infrastructure components, finite element modeling, field experimentation
**Abstract:** Rail corridors often experience a wide variety of passenger and freight train loads, track geometry characteristics, and environmental conditions. These factors must be considered...
Report Number
              DOT/FRA/ORD-17/23

  Office
              RDI-21
    29
Nov
2017
Technical Reports
Improved Concrete Crosstie and Fastening Systems for US High Speed Passenger Rail and Joint Corridors:  Volume 2
Author
          Federal Railroad Administration

Subject
                    Freight Operations,
                    Passenger Rail

**Keywords:** Concrete crossties, fastening systems, flexural behavior, mechanistic design, infrastructure components, finite element modeling, finite element, FE, finite element analysis, FEA, field experimentation

Report Number
              DOT/FRA/ORD-17/23

  Office
              RDI-21

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