Automated measurement and control of concrete properties in a ready mix truck with VERIFI.

Details

• Creators:
  Khayat, Kamal H. ; Libre, Nicolas Ali
• Corporate Creators:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Concrete
  • Concrete mixers
  • Mix design
  • Admixtures
  • Slump test
  • Automation
  • Compressive strength
• Publication/ Report Number:
  NUTC R335;Project # 00042385
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Abstract:
  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 IDOT mixes).
• Format:
  PDF
• Funding:
  DTRT06-G-0014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27964/dot_27964_DS1.pdf
• File Type:
  [PDF - 2.15 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:59877f6c7c7fccabf6022de85c359d69ea742f31a05c3e6d13bf62f60f179b4b7c5c93c29cb1b8331423c8568ec362635afe407b826626b078c1022d386c9cc7