COMPARISON OF HYDRATION PROPERTIES BETWEEN MONOCLINIC AND INVERTED TRICLINIC ALITE

TRICALCIUM SILICATE FORMS CRYSTALLINE SOLID SOLUTIONS WITH AL203 AND MGO THAT ARE KNOWN AS ALITES. AN ALITE WAS SYNTHESIZED WHOSE COMPOSITION IS EXPRESSED BY A MATHEMATICAL FORMULA. EITHER OF TWO POLYMORPHIC FORMS OF THIS ALITE CAN EXIST AT ROOM TEMPERATURE AND ARE CALLED MONOCLINIC ALITE AND TRICLINIC ALITE. THE PREPARATION AND SOME HYDRATION CHARACTERISTICS OF THESE ALITES ARE DISCUSSED. THE FOLLOWING CONCLUSIONS WERE REACHED' /1/ MONOCLINIC AND TRICLINIC ALITES CAN BE PREPARED WITH THE SAME COMPOSITION, /2/ THE SETTING TIMES FOR PASTES OF THE TWO POLYMORPHS ARE ABOUT THE SAME AND GYPSUM RETARDS THE SETTING OF EACH EQUALLY, /3/ THE MONOCLINIC ALITE HYDRATES SLIGHTLY MORE RAPIDLY, BUT EARLY STRENGTHS OF THE TRICLINIC ALITE SEEM TO BE HIGHER, AND /4/ GYPSUM INCREASES THE STRENGTH OF MORTARS OF BOTH ALITES.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/sr/sr90/90-022.pdf
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Corporate Authors:

  Highway Research Board (HRB)

  Washington, DC   
• Authors:
  • Yamaguchi, Goro
  • Shirasuka, Kohei
  • Ota, Takeshi
• Publication Date: 1966

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: p. 263-268
• Monograph Title: Symposium on structure of Portland cement paste and concrete
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 90
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Alternatives analysis; Concrete curing; Gypsum; Hydration; Mortar; Portland cement; Strength of materials; Tricalcium silicate
• Uncontrolled Terms: Preparation
• Old TRIS Terms: Alites; Monoclinic; Triclinic
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00212454
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 18 2001 12:00AM