Improving Concrete Production using On-Board Monitoring - Pierre Siccardi.pdf

1、Pierre Siccardi,Ph.D.Presenting on behalf of Prof.Marc Jolin,Ph.D.,FACIImproving Sustainable Concrete Production Practices Using an On Board Monitoring System of the Fresh Concrete PropertiesACI Foundations Technology ForumMay 15th Santa Fe,New Mexico-Ph.D.from the University of British Columbia-Pro

2、fessor at Universit Laval since 2003-Chairman of ACI 506 Shotcreting 2014 to 2020-Chairman of ACI C660 Shotcreter Certification 2009 to 2015-Chairman of ACI C661 Shotcrete Certification since 2023-2021 ACI Delmar L.Bloem Distinguished Service Award-2017 ACI Certification Award-ACI Fellow since 20102

3、Marc JolinJean-Claude Roumain Innovation AwardFor your leadership in shotcrete innovation,improvements,advancements,and for striving to evaluate new technologies in shotcrete construction.Shotcrete Research Lab in Universit Laval Indoor laboratory allowing for controlled production of dry-mix and we

4、t-mix shotcrete using full scale equipment Full capacity for testing fresh and hardened concrete samples34Mix design5Reinforcing bars encapsulationPasqualle BASSO-TRUJILLO(2021),Ph.D.ThesisShrinkage and fractureUsing the AASHTO T334-08 Ring Test for shotcrete(Girard,2003;Menu,2020)6Spray cinematic(G

5、inouse,2014)U(m/s)Y(m)NozzleX=0,1 mU(m/s)Y(m)X=0,5 mX=1 mU(m/s)Y(m)Nozzle7(Germain,2020)(Paquet,2021)(Pastorelli,2021)(Schaeffer,2022)Placement automationContributors10TabletDisplayFlowmeterSlump probeOn-board monitoring system11Real-time data measurement Drum direction and rotationnal speed Product

6、ion status Slump Water addition Temperature Mixing turn count Volume of concrete EtcSlump adjustment using water additionLoading&mixingTransportationArrival on site&re-mixingUnloadingSlumpRPM+RPM(Unloading)Time(hh:mm)20 gal.of water12Sampling capacity Approx.220 gal.(830 liters)to get the first slum