The user-friendly AdiaCal lets producers test mix designs by taking samples directly from a mixer or batch plant to identify and correct incompatibilities before they become problems on the jobsite. The device measures temperature in insulated cylinders of concrete to determine early hydration reactions. It can be used to prescreen materials, determine proper admixture dosage, alert personnel to adverse material interactions, and track raw material variability in mix designs. Grace Construction Products. 877-423-6491. www.graceconstruction.com.