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Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

Overview

 

Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-13-0031
Project Name:   Dimensional Stability of Prebagged Grouts for Prefabricated Bridge Element and System Connections
Project Status:   Active
Start Date:  January 1, 2013
End Date:  November 30, 2014
Contact Information
Last Name:  Graybeal
First Name:  Benjamin A (Ben)
Telephone:  202-493-3122
E-mail:  benjamin.graybeal@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Bridge and Foundation Engineering Team [HRDI-40]
Program:   Innovative Bridge Research and Deployment
Laboratory:   Concrete Laboratory
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   This project will assess the dimensional stability, primarily shrinkage, of at least 12 prebagged grouts. At least six different standardized shrinkage tests, along with nonstandardized laboratory tests, will be completed to fully assess the real-world shrinkage behavior on the time continuum from mixing through fully cured. Thermal expansion will also be assessed. New shrinkage test methods that appropriately report the parameters of interest to the bridge construction sector may be suggested.
Goals:   The key project objective is to evaluate the dimensional stability, primarily shrinkage, of prebagged grout materials, which may be used in field-cast applications connecting Prefabricated Bridge Elements and Systems (PBES) components. The variety of existing test methods or assessing these materials have been demonstrated to provide a range of results that are not indicative of real-world performance. This project will provide a rational assessment of real-world performance of these materials and may suggest modifications to standardized test methods.  
Product Type:   Article
Technical report
Test Methodology:   Complete standardized and nonstandardized tests to assess dimensional stability of prebagged grouts.
Expected Benefits:   Deliverables from this project will raise awareness of the challenges inherent in the use of "nonshrink" grouts and will also propose methods to understand and address the shrinkage. In doing so, it the research will facilitate the appropriate use of these grouts when deployed in field-cast connections between prefabricated bridge elements.
Deliverables: Name: Volume Stability and Cracking Potential of Prebagged Cement-Based Nonshrink Grouts for Field-Cast Connections
Product Type(s): Technical report, Article
Description: Volume Stability and Cracking Potential of Prebagged Cement-Based Nonshrink Grouts for Field-Cast Connections
FHWA Topics:   Roads and Bridges--Construction and Project Management
TRT Terms:   Concrete Structures
Infrastructure
Bridges
Prefabricated Bridges
Concrete
Research
Grout
FHWA Disciplines:   Design
Structures
Pavement and Materials
Subject Areas:   Bridges and other structures
Materials
Research
Construction

 

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