Device to Precisely Measure Water-Cement Ratio of Fresh Concrete

The negative impact of high ratios of water-to-cementitious materials (wcm) on concrete strength and durability is widely recognized. Even so, the uninhibited addition of temper water at the job site is a widespread practice within the concrete construction industry.Whereas the ability to accurately and precisely measure wcm of fresh concrete has been elusive, highway agencies have experienced considerable difficulty controlling the quality of placed concrete, particularly as it relates to the total amount of water in the mix. This research project involved the evaluation of several novel solutions to this problem. Successful implementation of the most promising solutions will enable highway agencies to easily and adequately protect against low-strength and low-durability concrete, helping state highway agencies save millions of dollars in unnecessary and/or premature repairs and rehabilitation costs caused by low-quality concrete. The goal of the final device will be to achieve three key objectives: laboratory-quality precision, portability, and ease of use, making it suitable for everyday use by contractors, state highway testing personnel, and testing laboratories.


  • English


  • Status: Completed
  • Contract Numbers:

    Project 20-30, IDEA

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Jawed, Inam

  • Performing Organizations:

    Nomadics, Incorporated

    Stillwater, OK  United States 
  • Principal Investigators:

    Trost, Steve

    Fox, Mike

  • Start Date: 20070101
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 15839

Subject/Index Terms

Filing Info

  • Accession Number: 01547264
  • Record Type: Research project
  • Source Agency: National Cooperative Highway Research Program
  • Contract Numbers: Project 20-30, IDEA
  • Files: TRB, RiP
  • Created Date: Dec 4 2014 1:01AM