ISOLATION AND INVESTIGATION OF A LIME-MONTMORILLONITE CRYSTALLINE REACTION PRODUCT

ONE PHASE IS INVESTIGATED OF THE MECHANISMS PRODUCING CEMENTATION BY ATTEMPTING TO ISOLATE AND DETERMINE THE PROPERTIES OF A CRYSTALLINE REACTION PRODUCT ASSOCIATED WITH THE ACTION OF LIME WITH CLAY. THE RESEARCH WAS UNDERTAKEN TO (1) INVESTIGATE VARIOUS LIME-SOIL-WATER SYSTEMS VARYING EACH OF THE THREE PARAMETERS ONE AT A TIME TO DETERMINE THE BEST PHASE RELATIONSHIPS FOR GROWING EUHEDRAL CRYSTALS OF SUFFICIENT SIZE TO BE OBSERVED UNDER THE MICROSCOPE, (2) TO ISOLATE THESE CRYSTALS, AND (3) TO DETERMINE THEIR PHYSICAL AND CHEMICAL PROPERTIES. ISOLATING THE CRYSTALS WAS DONE UNDER THE MICROSCOPE, AND THE DETERMINATION OF THEIR PROPERTIES WAS UNDERTAKEN PRIMARILY BY MICROSCOPIC AND X-RAY METHODS. RESULTS INDICATED THAT (1) IN MIXTURES OF LIME, SOIL M-67, AND WATER WHICH ARE MOIST CURED FOR 30 DAYS, A CRYSTALLINE REACTION PRODUCT DEVELOPS, (2) THE SAME CRYSTALLINE REACTION PRODUCT DEVELOPS IN MIXES OF LIME, WATER AND BENTONITE, BUT ONLY AFTER A LONGER CURING TIME, (3) THE CRYSTALS ARE TRANSPARENT, COLORLESS, PLOTY AND HEXAGONALLY SHAPED, (4) X-RAY STUDIES OF THE CRYSTAL STRUCTURE PROVE THAT IT IS THE RHOMBOHEDRAL DIVISION OF THE HEXAGONAL SYSTEM IN TWO SPARE GROUPS, AND (5) THE CHEMICAL COMPOSITION OF THE CRYSTAL WAS NOT PRECISELY DETERMINED.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/304/304-004.pdf
• Supplemental Notes:
  • No 304, pp 51-64, 5 FIG, 4 TAB, 13 REF 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.
• Authors:
  • Hilt, G H
  • Davidson, D T
• Conference:
  • 40th Annual Meeting of the Highway Research Board
  • Location: Washington DC, United States
  • Date: 1961-1-9 to 1961-1-13
• Publication Date: 1961

Language

• English

Media Info

• Media Type: Digital/other
• Monograph Title: Lime stabilization: properties, mix design, construction practices and performance 1961
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 304
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Bentonite; Bonding; Calcium oxide; Chemical properties; Crystallography; Microscopy; Montmorillonite; Physical properties; Water; X ray analysis
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00232412
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 15 2004 2:43AM