USE OF INFRARED SPECTROPHOTOMETRY FOR THE DETECTION AND IDENTICATION OF ORGANIC ADDITIONS IN CEMENT AND ADMIXTURES IN HARDENED CONCRETE

PROCEDURES OF SOLVENT EXTRACTION AND INFRARED ANALYSIS FOR IDENTIFICATION OF ORGANIC ADDITIONS IN CEMENT AND ADMIXTURES IN HARDENED CONCRETE WERE DEVELOPED. THREE EXTRACTION PROCEDURES-CHLOROFORM, ACID-CHLOROFORM, AND SODIUM CARBONATE ANION-EXCHANGE ARE DETAILED IN THE APPENDIXES. USING THESE PROCEDURES A NUMBER OF ORGANIC COMPOUNDS HAVE BEEN IDENTIFIED. THE SODIUM CARBONATE ANION-EXCHANGE PROCEDURE IS ALMOST ENTIRELY RESTRICTED TO LIGNOSULFONATES. ONCE A COMPOUND IS IDENTIFIED, QUANTITATIVE ANALYSIS BY OTHER METHODS CAN BE PERFORMED, IF IT CAN BE EXTRACTED COMPLETELY AND IS THE ONLY ONE PRESENT. /PCA/

  • Authors:
    • Hime, W G
    • Mivelaz, W F
    • Connolly, J D
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00213630
  • Record Type: Publication
  • Source Agency: Portland Cement Association
  • Report/Paper Numbers: No 194
  • Files: TRIS
  • Created Date: Jun 1 1970 12:00AM