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Improved Performance of Concrete in Rigid Pavements and Other Transportation Structures Through Modeling of Cement Hydration

Project Information

Project ID: 
FHWA-PROJ-10-0084
Project Abstract: 

The purpose of this interagency research project with the National Institute of Standards and Technology (NIST) is to work cooperatively with the Federal Highway Administration (FHWA) on cement hydration kinetics modeling research. The focus will be on clearly defining the causes of the onset and end of the induction period of alite, which controls set, strength, and subsequent microstructural development. The researchers will simulate the presence of mineral and chemical admixtures by introducing aluminate and sulfate ions and organic retarders at ratios known to perturb normal hydration. The researchers will also use new experimental methods capable of measuring chemical and microstructural changes on the nanometer to micron scale during hydration; the goal is to use this insight to improve the ability of NIST's HydratiCA model to predict hydration kinetics and microstructure in the presence of supplementary cementing materials (SCMs), such as fly ash, slag and metakaolin, as well as in organic admixtures. This detailed understanding will also lead to the improvement of the boundary nucleation and growth (BNG) model to permit prediction of hydration kinetics and setting behavior, using a software tool that is powerful but simple enough to be used in the field.

Research HUB ID: 
7828
Project Status: 
Completed
Project Funding Amount (Contract Award Amount): 
$0
Start Date: 
Thursday, September 30, 2010
End Date: 
Saturday, March 26, 2016
Public Access Plan: 
No
Laboratory: 
Aggregate and Petrographic Laboratory, Chemistry Laboratory, Concrete Laboratory
FHWA Program Area: 
Exploratory Advanced Research
Project Outputs: 

Models of cement hydration and data for the National Institute of Standards and Technology Virtual Cement and Concrete Testing Laboratory models. [Source: FHWA, PMSS Database (2013)]

Contact Information

Team: 
Infrastructure Materials Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-10

Management Organizations

Sponsor Organization: 
Organization Role: 
Sponsor Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Lead
Managing Organization: 
Organization Role: 
Project Managing Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Contact
Performing Organization: 
Organization Role: 
Performing Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Contact
Partners and Other Sponsor/Managing/Performing Organizations: 
Organization Role: 
Partner
Organization: 
U.S. Department of Commerce

Deliverables