FIELD METHOD FOR ESTIMATION OF POZZOLANA CONTENT IN CEMENT

Speedy methods for the estimation of pozzolana content in cement have been developed which are based on the priniciple of separation of lighter pozzolana from the heavier cement particles using bromoform as the separating liquid. The gravimetric bromoform method gives accurate results (within 2 percent) and takes 4-6 hours for determination, is applicable only in a laboratory. The volumetric bromoform method, however, requires about one hour and can be performed in the field by semi-skilled personnel with minimal training and with a reasonable degree of accuracy (within 14 percent). This report describes the details of the methods and their experimental verification. The results of the tests are tabulated. In view of the simplicity, convenience, speed and reasonable accuracy, it is considered that the volumetric method will be of practical utility and will find acceptance under field conditions.

• Corporate Authors:

  Central Road Research Institute

  Delhi-Mathura Road
  New Delhi,   India  110020
• Authors:
  • Ghosh, R K
  • Pant, C S
• Publication Date: 1979

Media Info

• Features: Photos; References; Tables;
• Pagination: 10 p.
• Serial:
  • ROAD RESEARCH PAPERS
  • Issue Number: 162
  • Publisher: Central Road Research Institute

Subject/Index Terms

• TRT Terms: Accuracy; Cement; Estimating; Field tests; Gravimetric analysis; Pozzolan; Volumetric analysis
• Old TRIS Terms: Field methods; Gravimetric analyses
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00330732
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jun 12 1981 12:00AM