Automated Measurement and Control of Concrete Properties in a Ready Mix Truck with VERIFI

In this research, twenty batches of concrete with six different mixture proportions were tested with VERIFI to evaluate 1) accuracy and repeatability of VERIFI measurements, 2) ability of VERIFI to adjust slump automatically with water and admixture, and 3) effects on concrete properties when water and admixture are added continuously during transit instead of adding whole at the plant or jobsite. For each batch, concrete was sampled every 30 minutes up to 90 minutes and tested for slump, temperature, air content, unit weight, water content, bleeding (select batches), and rheology (select batches). Cylindrical concrete specimens were cast at 90 minutes and were tested for compressive strength at 3 and 28 d (or 3 and 14 d for Illinois Department of Transportation (IDOT) mixes).

  • Record URL:
  • Supplemental Notes:
    • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
  • Corporate Authors:

    Center for Transportation Infrastructure and Safety/NUTC program

    Missouri University of Science and Technology
    220 Engineering Research Lab
    Rolla, MO  United States  65409

    Research and Innovative Technology Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Khayat, Kamal H
    • Libre, Nicolas Ali
  • Publication Date: 2014

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 54p

Subject/Index Terms

Filing Info

  • Accession Number: 01529417
  • Record Type: Publication
  • Report/Paper Numbers: NUTC R335, 00042385
  • Contract Numbers: DTRT06-G-0014
  • Files: UTC, TRIS, RITA, ATRI, USDOT
  • Created Date: Jun 23 2014 11:33AM