Accession Number : AD0715714

Title :   Low-Temperature Phases of Interfacial Water in Clay-Water Systems

Descriptive Note : Research rept.

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s) : Anderson, Duwayne M ; Tice, Allen R

PDF Url : AD0715714

Report Date : Oct 1970

Pagination or Media Count : 21

Abstract : 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 -35C and -60C. 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.

Descriptors :   *ARCTIC REGIONS, *CLAY MINERALS, CONSTRUCTION, FREEZING, FROST HEAVE, ICE, INTERFACES, PHASE STUDIES, THERMAL ANALYSIS, WATER

Subject Categories : Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE