QUANTITATIVE DETERMINATION OF THE FOUR MAJOR PHASES OF PORTLAND CEMENT BY COMBINED X-RAY AND CHEMICAL ANALYSIS

A METHOD WAS DEVELOPED FOR EVALUATING THE QUANTITIES OF THE 4 MAJOR COMPOUNDS OR PHASES (TRICALCIUM SILICATE OR ALITE, BETA-DICALCIUM SILICATE OR BELITE, TRICALCIUM ALUMINATE, AND THE FERRITE PHASE) IN PORTLAND CEMENTS BY A COMBINATION OF X-RAY QUANTITATIVE ANALYSIS AND CHEMICAL ANALYSIS. TWENTY PORTLAND CEMENTS OF WIDELY DIFFERING COMPOSITIONS, REPRESENTING ALL 5 ASTM TYPES, WERE ANALYZED. THE AVERAGE COMPOSITION OF THE FERRITE PHASE WAS CLOSE TO THAT OF TETRACALCIUM ALUMINOFERRITE (OR BROWNMILLERITE). THE SYSTEMATIC DIFFERENCE BETWEEN BOGUE'S POTENTIAL COMPOUND VALUES AND THE VALUES GIVEN IN THIS PAPER IS NEGLIGIBLE FOR TRICALCIUM SILICATE AND THE FERRITE, BUT BOGUE'S METHOD UNDERESTIMATES DICALCIUM SILICATE AND OVERESTIMATES TRICALCIUM ALUMINATE. /PCA/

• Authors:
  • Copeland, L E
  • Brunauer, S
  • Kantro, D L
  • Schuelz, E G
  • Weise, C H
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Aluminates; Calcium compounds; Chemical analysis; Ferrites; Portland cement; Quantitative analysis; Silicates; X ray analysis
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213550
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 108
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM