DIAGNOSIS OF MARSHALL MIX DESIGN USING EXPERT SYSTEM TECHNOLOGY

Asphalt concrete mix design and quality control are processes which have major effects on pavement performance. Most highway agencies use the Marshall method of mix design. This is the most important stage in the overall Pavement Materials Selection and Evaluation (PMSE) process. Although the Marshall mix design procedure is described in many documents, the interpretation of diagnosis of test results does require judgment and expertise in asphalt paving technology so that adjustments can be made to obtain a satisfactory mix design. Such adjustments may include aggregate reproportioning and type as well as the asphalt cement content and type plus some necessary tradeoffs between the mix properties requirements. This paper shows how Knowledge-Based Expert Systems (KBES) technology can be used to diagnose the laboratory test result evaluations of Marshall mix design. It describes how the outputs of the expert system give decision support to the design engineer or technologist as to what adjustments can be made to achieve a satisfactory unit design. Knowledge required for the diagnosis process and its representation scheme are discussed. Examples are provided to illustrate the methodology involved. (A) For the covering abstract of the Conference see IRRD Abstract No. 807716.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0921317247
• Corporate Authors:

  POLYSCIENCE PUBLICATIONS INC.

  44 SEIZE ARPENTS, P.O. BOX 148
  MORIN HEIGHTS, QUEBEC  Canada  J0R 1H0
• Authors:
  • Hozayen, H
  • SCHENK, W
  • Haas, R
• Conference:
  • PROCEEDINGS OF THE THIRTY-FIFTH ANNUAL CONFERENCE OF CANADIAN TECHNICAL ASPHALT ASSOCIATION
• Publication Date: 1990

Language

• English

Media Info

• Features: References;
• Pagination: p. 111-35

Subject/Index Terms

• TRT Terms: Bitumen; Bituminous mixtures; Cement; Concrete; Conferences; Expert systems; Flexible pavements; Marshall test; Mix design; Pavement design; Rigid pavements
• Geographic Terms: Canada
• ITRD Terms: 4963: Bitumen; 4967: Bituminous mixture; 8018: Canada; 4758: Cement; 4755: Concrete; 8525: Conference; 8626: Expert system; 2944: Flexible pavement; 6290: Marshall; 4714: Mix design; 3055: Pavement design; 2953: Semi rigid pavement
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00628389
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• ISBN: 0-921317-24-7
• Files: ITRD
• Created Date: May 7 1993 12:00AM