TESTS OF TREATED SUBGRADES AND CAPPING LAYERS USING CEMENTITIOUS BINDER IN RAILTRACK INFRASTRUCTURES

Silty clay, or chalk, treated with cementitous binder, are current techniques in road construction. The construction of high speed railways infrastructures must consider both the water flow through the ballast, and the short repeated cyclic stresses induced by the train axles. Full scale experiments have been performed at the Centre d'Experimentation Routiere to test the behaviour at the interface between a treated silty clay layer underneath a subballast granular course, and at the interface between a treated chalk subgrade underneath a capping layer in coarse granular materials. The goals are to verify the modulus of the treated courses and to check the absence of fine particles migration in the gravel layers until 10 million vibrating cycles with higher stresses than usual. The behaviour of the silty clay is excellent. For the chalk, durable properties may be obtained; however, a specific care should be taken in the case of soft chalks, on the treatment design. For the covering abstract see ITRD E118503.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9058093980
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Quibel, A
  • MUDET, M
• Conference:
  • PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON THE BEARING CAPACITY OF ROADS AND AIRFIELDS, LISBON, PORTUGAL, 24-26 JUNE 2002.
• Publication Date: 2002

Language

• English

Media Info

• Features: References;
• Pagination: p. 1323-30
• Serial:
  • Volume: 2

Subject/Index Terms

• TRT Terms: Ballast (Railroads); Base course (Pavements); Binders; Cement; Chalks; Clay; Conferences; Foundations; High speed ground transportation; High speed vehicles; Railroad tracks; Speed
• Uncontrolled Terms: Ballast
• Geographic Terms: France
• ITRD Terms: 2990: Basecourse; 4948: Binder; 4758: Cement; 4120: Chalk; 4177: Clay; 4559: Coarse aggregate; 8525: Conference; 3377: Foundation; 8036: France; 1163: High speed; 1062: Railway track
• Subject Areas: Data and Information Technology; Geotechnology; Railroads;

Filing Info

• Accession Number: 00963884
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-5809-398-0
• Files: ITRD
• Created Date: Oct 3 2003 12:00AM