HIGH SPEED PAVEMENT INVESTIGATION USING IMPULSE RADAR - AN EMERGING STANDARD FOR THE 90S

Impulse radar has been proven to be a technique capable of measuring construction thickness, locating structural problems, such as voiding, and measuring moisture content in the granular layers so that these outputs make impulse radar a useful tool. In pavement engineering the thickness of the construction layers within a road pavement is important for its load bearing capacity and to schedule road maintenance. Useful correlation between Deflectograph surveys and impulse radar have been made and thickness values from impulse radar surveys have been used in the Deflectograph analysis. Using the ALPS system (Automated Layer Profiling System) described, impulse radar data can be collected at traffic speed sampling the pavement at 250mm intervals which is comparable to the sampling achieved by the slowly towed systems. Most of the slow systems are analogue systems with the only output being black and white paper charts. With the new digital system the data is recorded in a form ready for processing on a PC. Processing of the data has been a major advance in the impulse radar technique, made largely possible by digital technology and readily available. For the covering abstract see IRRD 877985.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0860502872
• Corporate Authors:

  PTRC Education and Research Services Limited

  Glenthorne House, Hammersmith Grove
  London W6OL9,   England 
• Authors:
  • MILLIGAN, B
• Conference:
  • ROADS PROVISION AND OPERATION. PROCEEDINGS OF SEMINAR K HELD AT THE 23RD EUROPEAN TRANSPORT FORUM, UNIVERSITY OF WARWICK, ENGLAND, SEPTEMBER 11-15, 1995. VOLUME P397
• Publication Date: 1995

Language

• English

Media Info

• Features: References;
• Pagination: p. 91-101

Subject/Index Terms

• TRT Terms: Automatic control; Automation; Conferences; Deterioration; Digital computers; Equipment; Information processing; Maintenance; Pavements; Profilometers; Radar; Speed
• ITRD Terms: 3882: Automatic; 8525: Conference; 8655: Data processing; 5255: Deterioration; 8673: Digital computer; 3674: Equipment; 3847: Maintenance; 2955: Pavement; 6103: Profilometer; 6738: Radar; 5408: Speed
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 00723105
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-86050-287-2
• Files: ITRD
• Created Date: Jul 26 1996 12:00AM