IMPULSE DEFLECTION MEASUREMENT . 5TH CONFERENCE ON ASPHALT PAVEMENTS FOR SOUTHERN AFRICA (CAPSA 89). PROCEEDINGS HELD IN SWAZILAND, 5-9 JUNE, 1989

The non-destructive testing (NDT) approach for pavement structural evaluation - which involves consideration of surface deflections under an applied load using various types of equipment, ranging from the Benkelman Beam to the current equipment, the Impulse Deflectometer (IDM), sometimes known as the Falling Weight Deflectometer (FWD) - is discussed. Back-calculating techniques for determining pavement layer moduli using deflection bowl measurement are compared. The use of such moduli in determining remaining life as well as required overlay thickness is demonstrated. Application of Impulse Deflection Measurements are summarised.(A) For the covering abstract of the conference see IRRD 828827.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0620143959
• Corporate Authors:

  CAPSA

  PO BOX 993
  Manzini,   Swaziland 
• Authors:
  • Coetzee, N J
  • Van WYK, A J
  • Maree, J H
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 9-17
• Serial:
  • Publication of: CAPSA
  • Publisher: CAPSA

Subject/Index Terms

• TRT Terms: Computer programs; Conferences; Curvature; Deflection; Deflectographs; Field tests; Loads; Mathematical analysis; Measuring instruments; Nondestructive tests; Pavement design; Test procedures
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00604018
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 0-620-14395-9
• Files: ITRD, TRIS
• Created Date: Feb 28 1991 12:00AM