REACTION PRODUCTS IN KAOLINITE-HYDRATED LIME SLURRIES

SLURRIES OF KAOLINITE AND CALCIUM HYDROXIDE, MIXED IN FOUR DIFFERENT CLAY-LIME RATIOS, WERE CURED AT 30C AND 55C FOR PERIODS UP TO 1024 DAYS, AND WERE EXAMINED AT REGULAR INTERVALS BY X-RAY DIFFRACTION, DIFFERENTIAL THERMAL AND THERMOGRAVIMETRIC ANALYSIS. REACTION PRODUCTS CONSISTED OF CALCIUM SILICATE HYDRATES, CALCIUM ALUMINATE HYDRATES AND A PHASE BELIEVED TO BE CALCIUM ALUMINATE SILICATE HYDRATE OF THE HYDROGARNET TYPE. STRATLINGS COMPOUND ONLY APPEARED AT THE LOWER TEMPERATURE AFTER THE LIME HAS BEEN CONSUMED. THE PREDOMINANT C-S-H PHASE WAS POORLY CRYSTALLINE, PROBABLY A HIGH-CALCIUM TOBERMORITE GEL ALTERING SLOWLY TO A PHASE POORER IN LIME, AND WAS OBSERVED AT BOTH TEMPERATURES, THE IMPLICATIONS OF THE REACTIONS FORMING THE C-A-H COMPOUNDS FOR SOIL STABILIZATION ARE BRIEFLY DISCUSSED IN TERMS OF STRENGTH DEVELOPMENT, SULPHATE ATTACK, CARBONATION AND LIME REQUIREMENT. /AUTHOR/

  • Corporate Authors:

    Nat Inst Road Research /S Africa

    /Internal Rept
    ,   United States 
  • Authors:
    • Wet, J J
    • Vail, J W
  • Publication Date: 1971

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 30 p.
  • Serial:
    • Issue Number: -2

Subject/Index Terms

Filing Info

  • Accession Number: 00233610
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: R&d Rpt
  • Files: TRIS, ATRI
  • Created Date: Nov 14 1973 12:00AM