RE-CAST UTC Project Information

Project Title

Rapid Pavement Construction: Research on Thixotropy and Workability Loss of Vibration-free Concrete in View Accelerating Pavement Construction by Slipforming

Universities

Missouri University of Science and Technology

Principal Investigator

Dimitri Feys
Missouri University of Science and Technology

PI Contact Information

feysd@mst.edu;  573-341-7193

Funding Source(s) and Amounts Provided (by each agency or organization)

Missouri S&T: $39,410
RE-CAST: $39,409

Total Project Cost

$78,819

Matching Agency ID or Contract Number

Missouri S&T: internal
RE-CAST: 0049070

RE-CAST Grant Award Number

DTRT13-G-UTC45

Start and End Dates

Start Date: September 1, 2014
End Date: December 15, 2015

Brief Description of Research Project
The main objective of this project is to identify critical constituent materials and mix design parameters that influence the thixotropy and workability loss of vibration-free concrete. The research will be mainly performed on cement-pastes, which is the source of thixotropy and workability loss. The influence of the aggregates will be investigated in a separate task. Understanding the time-dependent fresh concrete behavior is essential for the development of vibration-free concrete for slipforming, enhancing the opportunities for accelerated pavement construction. Furthermore, the obtained results can be related to other RE-CAST projects, such as project 1B on formwork pressure and 1C on the influence of casting procedures on the performance of concrete.

Describe Implementation of Research Outcomes

 

Impacts/Benefits of Implementation

 

Web Links

Project website: http://recast.mst.edu/projects/influenceofcastingconditionsonhpc-ar/

Final report: PDF