Users Manual
Table Of Contents
PDP User's Guide Overview
1
1. Overview
Congratulations on your purchase of a Pavement Density Profile (PDP) system. PDP
provides a way to measure density of newly laid asphalt over a large area rapidly,
in a non-invasive manner. Areas of high and low density can then be targeted for
further investigation or corrective action.
The PDP system works by transmitting a radio wave signal towards the ground
surface and detects the reflected wave, measuring the dielectric permittivity of the
near surface. This information is then converted into density, for real-time results.
Data can be acquired continuously along a line profile, or at discrete locations.
Data can be downloaded for processing and creating summary reports.
Features of the PDP include:
• Rugged, sunlight readable display tablet
• Wireless connection from tablet to PDP sensor
• Internal and optional external GPS receiver for georeferencing data
• Simple user interface providing results in real-time
• Different types of measurements can be displayed:
o Relative Permittivity
o Density
o Density – Site Specific bulk density
o Relative Density
o Air Void Content
• Data export via Wi-Fi
This manual references embedded software version V1.3.
For those users looking to post-process the data, please refer to the manual for the
PDP Toolkit PC Software.
A glossary of terms relating to PDP and asphalt density can be found in Appendix
H:.