A METHOD OF PARTICLE ANALYSIS BY SEDIMENTATION

ANALYSE GRANULOMETRIQUE PAR SEDIMENTATION

This purpose of the study reported here is to work out a "method of particle size analysis by sedimentation", that easily and rapidly yields precise and reproducible results. A critical examination of different testing methods resulted in the choice of ASTM standard D 422-63 as a starting point. The following comparative tests demonstrated that the reproductibility of the results is improved by the following two modification: an extra stirring with a manual agitator; determination at each test, of a global correction, taking into account the temperature of the sedimentation medium, the presence of the deflocculating agent and the existence of a meniscus. With the use of these two improvements, the results can be characterized by a standard deviation typical of an average operator (1 to 1.5%), and a standard deviation between operators (1 to 2%). /Author/

• Corporate Authors:

  Road Research Centre, Belgium

  Boulevard de la Woluwe 42
  B-1200 Brussels,   Belgium 
• Authors:
  • Kindermans, J M
• Publication Date: 0

Language

• French

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 52 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Sedimentation; Sieve analysis; Standard deviation; Temperature; Testing
• Uncontrolled Terms: Comparative analysis
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00177306
• Record Type: Publication
• Report/Paper Numbers: CR 6/76
• Files: TRIS
• Created Date: Jul 19 1978 12:00AM