An Innovative Reinforcement Approach for Rebar-Free 3D Printing of Transportation Infrastructure

The main objective of this project is to investigate an innovative configuration for a rebar-free construction 3D printing process for resilient civil infrastructure development. The proposed configuration includes using a self-reinforced printing material as well as a discontinuous vertical reinforcement technique which can be fully automated. To this aim, twisted steel fibers will be used to develop a structural self-reinforced printing material. Inserting steel mini-rods into the layers will be investigated as an additional strengthening method. These steel rods are designed to act as vertical reinforcement and to address a possible weak interlayer adhesion and its influence on the mechanical performance of 3D printed elements. This project will result in development of a fully characterized printable self-reinforced mixture as well as comprehensive experimental data on the performance of an alternative reinforcement technique under different loading conditions.

• Supplemental Notes:
  • 21CLSU01

Language

• English

Project

• Status: Active
• Funding: $90000
• Contract Numbers:

  69A3551747106

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Transportation Consortium of South-Central States (Tran-SET)

  Louisiana State University
  Baton Rouge, LA  United States  70803
• Project Managers:

  Mousa, Momen

• Performing Organizations:

  Louisiana State University, Baton Rouge

  P.O. Box 94245, Capitol Station
  Baton Rouge, LA  United States  70803
• Principal Investigators:

  Kazemian, Ali

• Start Date: 20210801
• Expected Completion Date: 20230201
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Cement; Infrastructure; Material reinforcement; Steel fibers; Three dimensional printing
• Subject Areas: Construction; Materials; Transportation (General);

Filing Info

• Accession Number: 01833037
• Record Type: Research project
• Source Agency: Transportation Consortium of South-Central States (Tran-SET)
• Contract Numbers: 69A3551747106
• Files: UTC, RIP
• Created Date: Jan 20 2022 2:24PM