CRITICAL COMPARISON OF MERCURY POROSIMETRY AND CAPILLARY CONDENSATION PORE SIZE DISTRIBUTIONS OF PORTLAND CEMENT PASTES

A COMPARISON OF PORE-SIZE DISTRIBUTIONS FROM MERCURY POROSIMETRY AND FROM CAPILLARY CONDENSATION MEASUREMENTS REVEALS DISCREPANCIES BETWEEN THE RESULTS OF THE TWO TYPES OF MEASUREMENT FOR HYDRATED CEMENT PASTES. THE MERCURY INTRUSION DATA INDICATE CONSIDERABLY COARSER SIZE DISTRIBUTIONS WITH MEAN DIAMETERS OF THE ORDER OF SEVERAL HUNDRED ANGSTROMS. THE CAPILLARY CONDENSATION DATA YIELD MEAN PORE DIAMETERS BETWEEN 50 AND 100 ANGSTROMS, AND INDICATE THAT MOST OF THE SPACE TALLIED IS IN PORES OF DIAMETERS LESS THAN 100 ANGSTROMS. EVIDENCE DERIVED FROM OTHER TECHNIQUES SUPPORTS THE PRESENCE OF CONSIDERABLE PORE VOLUME IN THE RANGE OF DIAMETERS OF SEVERAL HUNDRED TO SOME THOUSANDS OF ANGSTROMS, WHICH IS CONSISTENT WITH THE MERCURY POROSIMETRY RESULTS. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Supplemental Notes:
  • Vol 1, No 5, PP 531-545
• Authors:
  • Diamond, S
• Publication Date: 1971-9

Media Info

• Serial:
  • Cement and Concrete Research
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Capillaries; Cement; Condensation; Mercury; Physical distribution; Pore space; Pores; Porosimeters; Size
• Uncontrolled Terms: Pores
• Subject Areas: Freight Transportation; Highways; Materials;

Filing Info

• Accession Number: 00214047
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 25 1971 12:00AM