Format:
iii, 17 Seiten
,
Illustrationen
Series Statement:
Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 290
Content:
CONTENTS: Introduction. - Experimental procedure. - Results and discussion. - Derivation of unfrozen water contents from these results. - Literature cited. - Abstract.
Content:
Low temperature differential thermal analyses of selected clay-water systems were made to locate important phase change temperatures and to define fruitful temperature-pressure fields for precise calorimetric investigation. In addition to an exotherm corresponding to initial freezing, one, two or three exotherms were observed between -35°C and -60°C. The low temperature exotherms do not depend critically upon water content, but clearly they are related to clay mineral and exchangeable cation type. The evolution of heat in this temperature range probably corresponds to a phase change in the interfacial water.
Note:
MAB0014.001: ZSP-202-290
,
Online frei verfügbar
In:
Research report
Language:
English
Keywords:
Forschungsbericht
URL:
http://www.worldcat.org/oclc/5974458
Bookmarklink