Abstract: Truck-mounted tipping equipment for mixing and discharging concrete quickly includes an open tipping bucket shaped as a rectangular prism in the front and a semi-truncated cone in the rear that narrows towards a hydraulic discharge trap-door. The mixing and discharge mechanism has a spindle in an oblique position, to which helical fins have been welded serving as an endless screw. The diameter of these fins varies with the helix having a larger radius in the front (nearest to truck's cabin), and a reduced diameter rear part. The spindle keeps the concrete in continuous movement during transportation to prevent it from setting, and continuously moves the concrete towards the rear hydraulic trap-door. The trap-door remains closed until the concrete needs to be discharged. Once the majority of the total load is extracted, the tank is tipped to the rear to discharge the remaining concrete.