NEW APPROACH TO THE HYDRATION REACTION OF THE TRICALCIUM ALUMINATE WITH GYPSUM AT 30 DEGREE C. PART I: EFFECT OF LIME

NEUE BETRACHTUNG DER HYDRATATIONSREAKTION VON TRICALCIUM-ALUMINAT MIT GIPS BEI 30 DEGREE C. TEIL I: DER EINFLUSS VON KALK

The effect of lime on the hydration of the tricalcium aluminate in presence of gypsum has been studied at 30 degree by means of X-ray powder diffraction as well as the chemical methods of analysis. The behavior of the reactants and products has been related to the solution composition for a reaction time of two minutes to one week. Lime depresses the concentration of aluminum in solution completely, retards the increase in the ettringite formation which is accompanied by a decrease in the sulfate ion concentration in the bulk solution and delays the consumption of both gypsum and C//3A.

• Corporate Authors:

  Bauverlag GmbH

  Wittelbacherstrasse 10
  6200 Wiesbaden,   Germany 
• Authors:
  • Ghorab, H Y
  • Abou El Fetouh, S H
• Publication Date: 1985-5

Language

• German

Media Info

• Features: References;
• Pagination: p. 267-270
• Serial:
  • ZKG Internationalf Cement-Lime-Gypsum, Edition B
  • Volume: 38
  • Issue Number: 5
  • Publisher: Bauverlag GmbH

Subject/Index Terms

• TRT Terms: Applications; Calcium oxide; Cement; Ettringite; Gypsum; Hydrates; Hydration; Manufactures; Tricalcium aluminate
• Old TRIS Terms: Cement retarders; Lime additive
• Subject Areas: Highways; Materials; Research; I32: Concrete;

Filing Info

• Accession Number: 00450865
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Aug 27 2004 9:57PM