Digital calibration drives new generation rheometer for SCC mix measurement

Germann Instruments has unveiled ICAR Plus Rheometer, citing a strong motor, personalized electronics and more comprehensive software than the predecessor model. ICAR Plus’ principal advantage is a digital calibration process affording operators a ready to use system under any environment and working condition. Calibrated on-site, it can be verified in the laboratory with the same silicone as the ICAR Rheometer.

After every digital calibration, ICAR Plus software displays the uncertainty torque measurement value, typically less than 0.5 percent, along with Torque vs. Time function during the stress growth or flow curve test. The software controls the one-minute tests and computes static and dynamic yield stresses, plus plastic viscosity in fundamental units. If the raw data of every test is saved, stress growth and dynamic flow curve plots can always be displayed.

ICAR Plus suits concrete of 3-in. or greater slump and bearing maximium 1.25-in. aggregate. It is equipped with an integrated servo motor and has a vane rotation speed of 0.001 to 0.667 revolutions/second. The new rheometer includes motor drive, base frame, vane, power supply and cables. Along with carrying case, it weighs about 45 lbs. — Germann Instruments, Evanston, Ill.,


The ICAR Plus Rheometer debuted at the 6th North American Conference on Self-Consolidating Concrete (SCC 2016), held earlier this year in Washington, D.C.