Concrete texturing machine

A method of treating a freshly produced concrete layer produced by a slipform paving machine, the freshly produced concrete layer having a width between first and second edges and extending longitudinally, the method comprising:

• (a) driving a texturing machine separate from and behind the slipform paving machine and longitudinally along the freshly produced concrete layer and texturing the freshly produced concrete layer, the texturing machine including first and second ground engaging units on opposite sides of the freshly produced concrete layer, and a machine frame spanning the concrete layer and supported from the ground engaging units by first and second adjustable height support columns, the texturing machine including at least one texturing device supported from the machine frame and having an adjustable height crown point provided by an articulation of at least one of the machine frame and the texturing device;
• (b) sensing a height of the texturing machine relative to the concrete layer adjacent the crown point with a crown point height sensor generating an input signal;
• (c) receiving the input signal in a controller and generating an output signal to control the height of the adjustable height crown point in response to the input signal;
• (d) actuating an actuator in response to the output signal and thereby articulating the at least one of the machine frame and the texturing device to adjust the height of the crown point during the texturing of step (a);
• (e) sensing a height of the texturing machine relative to the concrete layer adjacent each of the first and second edges with first and second edge height sensors, respectively, and generating first and second edge height input signals;
• (f) receiving the first and second edge height input signals in the controller and generating first and second edge height control output signals in response to the first and second edge height input signals;
• and
• (g) adjusting the height of the first and second adjustable height support columns to adjust a height of the machine frame relative to the concrete layer and thereby adjusting a height of the at least one texturing device relative to the concrete layer in response to the first and second edge height control output signals during the texturing of step (a).