Paving Control for Asphalt Pavers

Trimble PCS900 provides the accuracy and flexibility of 3D technology and allows you to pave with variable depth and slope based on the 3D design.

Accurate 3D control of the screed allows you to:

• Take out high and low areas early in the process with the less expensive first layer materials
• Increase road smoothness while using less asphalt than with traditional paving methods
• Lay complex designs such as transitions, super-elevated curves and frequently changing cross slopes
• Achieve accuracy and smoothness specifications, which can mean bonus income

PLUS, with PCS900 Paving Control System 3D technology, you eliminate the time consuming and costly step of setting out string line. Trucks can move easier with less travelling and maneuvering around string lines.

PAVE TO A DESIGN

The Trimble PCS900 system leverages the Trimble SPS930 Universal Total Station, MT900 Machine Target and on-board software to compare the actual screed position and slope with the 3D digital design. It automatically guides the screed to lay exactly the right material thickness and slope.

Trimble PCS400 Paving Control System uses a 2D reference to pave with a fixed thickness. This makes the PCS400 an excellent, lower cost option for roads that have been graded or milled using 3D machine control.

Using PCS400 you can:

REFERENCE OFF A SURFACE

Each side of the paver is typically equipped with one sonic tracer or with three sonic tracers mounted on an averaging beam. These sonic tracers send multiple sonic signals to reference off the existing surface and calculate an average elevation for paving a smooth surface.

REFERENCE OFF STRINGLINE

The ST200 sonic tracer can be configured to use stringline as a reference line to control the paver. In this mode the sonic tracer will measure any lateral movement of the machine relative to the stringline. When the sonic tracer’s center is moving away from the stringline, the control box warns you and provides correction guidance.

REFERENCE OFF A SLOPE SENSOR

The PCS400 system can also use the Trimble AS200 Angle Sensor to reference the desired cross-slope of the road. Designed specifically for asphalt pavers, the sensor rarely needs recalibration and paves cross slopes of up to 0.5% accurately and consistently.

 

• Determine the position of each tip of the blade and compare it to the design elevation to compute cut or fill to grade
• Drive the valves for automatic blade control or view in-cab lightbars based on the cut or fill data
• Control the machine’s automatic blade control settings in real-time
• Adjust the machine’s response to differing material conditions
• Optimize the machine’s performance for a particular grading task

• Achieve finished grade to millimeter accuracy with fewer passes
• Place finished grade materials more accurately and in a shorter time period
• Keep the material costs to a minimum and realize better profits

Used with a total station, single or dual GNSS receivers, GCS900 3D is ideal for bulk earthwork, grading, and fine grading applications such as:

• Material spreading
• Highway and railway construction
• Airport construction
• Concrete pours and slab placement
• Residential and commercial site construction

• SINGLE GNSS – Measures the position and slope of the blade and compares that to design data for rough grading and mass excavation on complex design surfaces
• DUAL GNSS – Measures the exact position, cross slope, and heading of the blade for rough grading and mass excavation on steep slopes and complex design surfaces
• SINGLE OR DUAL GNSS WITH LASER AUGMENTATION – Single and dual GNSS systems enhanced with laser augmentation to improve vertical accuracy for high accuracy guidance to complex design surfaces such as super-elevation grading from rough through finished grade work
• UNIVERSAL TOTAL STATIONS – Total station based system for extreme accuracy for lift and layer control, material monitoring, or where GNSS is not the ideal solution because of overhead obstructions