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Dimensional Stability of Prebagged Grouts for Prefabricated Bridge Element and System Connections

Project Information

Project ID: 
Project Status: 
Start Date: 
Tuesday, January 1, 2013
End Date: 
Sunday, November 30, 2014
FHWA Program: 
TRT Terms: 
Concrete Structures; Infrastructure; Bridges; Prefabricated Bridges; Concrete; Research; Grout
FHWA Discipline: 
Design, Structures, Pavement and Materials
Subject Area: 
Bridges and other structures, Materials, Research, Construction

Contact Information

First Name: 
Benjamin A (Ben)
Last Name: 
(202) 493-3122
Bridge Engineering Team
Office of Infrastructure Research and Development
Office Code: 

Project Details

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.


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.