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52550
  
  

  20
Jun
2023
Presentations
FRA Buy America and Related Requirements Webinar Presentation

Subject
                    Buy America

**Keywords:** Buy America
**Abstract:** The topic of this technical assistance webinar was FRA Buy America requirements. The target audiences included FRA grantees and their partners. Linda Martin, FRA Senior...
Presenter
              Linda Martin

  Audience
              FRA grantees and other interested parties

  Location
              Remote, webinar, DCUnited States
    31
Dec
2020
Waiver Requests
CALIDOT Workstation Table Buy America Waiver Request
Author
          California and Illinois Departments of Transportation

Subject
                    Buy America

**Keywords:** Caltrans; IDOT; Procurement
    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
    29
Sep
2017
Technical Reports
A Survey of Wheel/Rail Friction
Author
          Federal Railroad Administration

Subject
                    Track,
                    Tracks & Structures,
                    Track/Train Interactions

**Keywords:** Friction, friction management, lubrication, vehicle-track interaction, wheel-rail interaction v
**Abstract:** Friction has a huge influence on the vehicle/track interaction and yet it remains poorly understood, its consideration an afterthought in many simulation activities. This survey...
Report Number
              DOT/FRA/ORD-17/21

  Office
              RDI-21

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