DEVELOPMENT OF SURFACE IN THE HYDRATION OF CALCIUM SILICATES. II. EXTENSION OF INVESTIGATIONS TO EARLIER AND LATER STAGES OF HYDRATION

THE INVESTIGATION OF THE PASTE HYDRATION OF TRICALCIUM SILICATE AND BETA DICALCIUM SILICATE PUBLISHED EARLIER HAS BEEN EXTENDED TO REACTION TIMES SHORTER THAN 1 DAY AND LONGER THAN 200 DAYS. THE REACTIONS WERE INVESTIGATED AT 3 TEMPERATURES, 5, 25, AND 50 C. THERE ARE 3 STAGES IN THE HYDRATION REACTIONS: (1) THE FORMATION OF A LIME-RICH LOW SURFACE AREA PRIMARY PRODUCT, (2) THE CONVERSION OF THIS INTO LIME-POOR, HIGH SURFACE AREA INTERMEDIATE PRODUCT, AND (3) THE CONVERSION OF THE UNSTABLE INTERMEDIATE INTO THE FINAL STABLE CALCIUM SILICATE HYDRATE, CALLED TOBERMORITE GEL OR TOBERMORITE (G). A MECHANISM IS PROPOSED FOR BOTH REACTIONS. /PCA/

• Authors:
  • Kantro, D L
  • Brunauer, S
  • Weise, 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; Hydration; Pastes; Reaction time; Silicates; Tobermorite
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213591
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 151
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM