Curing machine

A self-propelled curing machine for curing a freshly laid concrete roadway extending in a working direction, the curing machine comprising:

• a machine frame;
• a plurality of ground engaging units configured to support the machine frame from a ground surface;
• a sprayer supported from the machine frame for applying a curing agent to the freshly laid concrete roadway, the sprayer including a liquid system including a plurality of liquid lines configured to conduct liquid, a plurality of shut-off valves for shutting off individual liquid lines, at least one pump for conveying a liquid in the liquid lines, at least one curing agent tank for holding a curing agent, at least one cleaning agent tank for holding a cleaning agent, and at least one group of spray nozzles for spraying the curing agent onto the freshly laid concrete roadway;
• an operating unit configured for manual input by a human operator of a selection of a selected operating mode from a selectable group, the selectable group including at least two of the following operating modes:
• a filling mode wherein the liquid system is configured such that the curing agent tank is filled with curing agent;
• a spraying mode wherein the liquid system is configured such that curing agent is sprayed with the at least one group of spray nozzles;
• a mixing mode wherein the liquid system is configured such that curing agent is set in motion in the at least one curing agent tank;
• and
• a cleaning mode wherein the liquid system is configured such that cleaning agent is conducted to the at least one group of spray nozzles;
• and
• a controller configured to receive the selection of the selected operating mode from the operating unit and to actuate the at least one pump and the shut-off valves such that the selected operating mode is executed.