Accession Number : AD0675540

Title :   HEAVING PRESSURE IN SOILS DURING UNIDIRECTIONAL FREEZING.

Descriptive Note : Research paper,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BUILDING RESEARCH

Personal Author(s) : Penner,E.

Report Date : JAN 1968

Pagination or Media Count : 13

Abstract : Ice lenses in natural soil are normally formed in a thermal gradient regime, and this permits the development of an undulating frost line if a range of pore sizes exists. Evidence is presented that suggests that the undulating nature of the ice-water interface permits the ice lens to form over the smaller pores of the system. Although fractions with only a limited particle size range have been studied, the results support the use of particle size as a valid basis for assessing frost susceptibility. (Author)

Descriptors :   (*STRUCTURES, FOUNDATIONS(STRUCTURES)), (*SOILS, FROST HEAVE), ICE, PARTICLE SIZE, FREEZING, INTERFACES, THERMAL CONDUCTIVITY, MOISTURE, CAPILLARY TUBES, MATHEMATICAL ANALYSIS, PRESSURE, TABLES(DATA), SOIL MECHANICS, CANADA

Subject Categories : Soil Mechanics
      Snow, Ice and Permafrost
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE