Energy imparted to a batch during mixing converts to heat in the concrete. The unit estimates this mixing-energy heat at approximately:

1. Heat balance calculations for mass concrete must include heat gained during mixing. 2. The unit reports that mixing imparts about 1390 kJ per m³ of concrete as heat. 3. For projects with rapid bucket transport between mixing and placing, this is often the only significant gain. 4. Delays and inconvenient placements add a contingency gain to the balance. 5. The other values misstate the magnitude given in the unit. _Source: IGNOU Concrete Technology, Unit 7 "Concreting Equipment" (Mixers, Cableways, Batchers, Buckets, Pre/Post Cooling)._