THE BALL-MILL HYDRATION OF TRICALCIUM SILICATE AT ROOM TEMPERATURE

THE HYDRATION OF TRICALCIUM SILICATE IN A SMALL STEEL BALL MILL AT ROOM TEMPERATURE WAS INVESTIGATED. THE STOICHIOMETRY OF THE REACTION IS PRESENTED. THE INITIAL PRODUCTS OF THE REACTION ARE CALCIUM HYDROXIDE AND A CALCIUM SILICATE HYDRATE, DESIGNATED AS "HYDRATE III." THE LATTER SHOWS MARKED SIMILARITIES TO THE CALCIUM SILICATE HYDRATE, TOBERMORITE, PRODUCED BY OTHER METHODS OF HYDRATION OF TRICALCIUM SILICATE. HYDRATE III DIFFERS FROM TOBERMORITE IN THAT IT IS UNSTABLE; IT SLOWLY CONVERTS TO ANOTHER CALCIUM SILICATE HYDRATE, AFWILLITE. HYDRATE III APPEARS TO BE A FORM OF TOBERMORITE WITH A STRUCTURE SO DISORDERED THAT IT EXHIBITS ONLY A SINGLE X-RAY DIFFRACTION LINE. THE KINETICS OF THE HYDRATION REACTION AND OF THE CONVERSION OF HYDRATE III TO AFWILLITE WERE EXAMINED. /PCA/

• Authors:
  • Kantro, D L
  • Brunauer, S
  • Wiese, C H
• Publication Date: 0

Media Info

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

Subject/Index Terms

• TRT Terms: Calcium compounds; Diffraction; Hydration; Hydroxides; Kinetics; Silicates; Stoichiometry; Tobermorite; X rays
• Uncontrolled Terms: Afwillite; X-ray diffraction
• Old TRIS Terms: Ball mills
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213549
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 107
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM