THE FACTOR OF SOIL AND MATERIAL TYPE IN FROST ACTION

A REVIEW IS PRESENTED OF THE SOIL FACTORS WHICH INFLUENCE THE EFFECTS OF FREEZING AND THAWING. SOIL PROPERTIES SPECIFICALLY AFFECTING FROST BEHAVIOR ARE THE FLOLLOWING: GRAIN SIZE AND SOIL GRADATION, VOID CHARACTERISTICS AND SPECIFIC SURFACE AREA, FREEZING POINT AND FREEZING CHARACTERISTICS, MINERAL TYPE, ORGANIC CONTENTS, EFFECT OF INITIAL WATER CONTENT IN CLOSED SYSTEM FREEZING, CAPILLARITY, EFFECT OF PRESSURE ON PLANE OF FREEZING, AND THERMAL PROPERTIES. THE RELATION OF SOIL CLASSIFICATION GROUPS TO FROST ACTION IS DISCUSSED. LABORATORY FROST EVALUATION TESTS FOR FROST-SUSCEPTIBLE SOILS ARE DESCRIBED. THE MEASURE OF SUSCEPTIBILITY TO FROST HEAVE SUGGESTED BY CASAGRANDE IS DISCUSSED. THE FOLLWING EFFECTS OF MECHANICAL MANIPULATION IN RELATION TO SOIL TYPE ARE DISCUSSED: (1) EFFECT OF REMOLDING ON ICE SEGREGATION, AND (2) MECHANICAL BREAKDOWN. STUDIES OF REMEDIAL MEASURES, CHEMICAL ADDITIVES, IN RELATION TO SOIL AND MATERIAL CHARACTERISTICS CONCLUDE THAT: (1) POLYMERIC AGGREGATES ARE GENERALLY NOT VERY EFFECTIVE, (2) THE USE OF CATIONS SUCH AS FERRIC CHLORIDE HAS THE DISADVANTAGE OF REQUIRING THE DRYING OF THE TREATED SOIL FOR FIXATION OF IONS, (3) DISPERSANTS ARE QUITE EFFECTIVE BUT THE QUESTION OF PERMANENCE AND DURABILITY NEEDS TO BE DETERMINED, (4) WATERPROOFERS ARE UNPREDICTABLE AND ALSO UNDESIRABLE BECAUSE OF DRYING AND CURING REQUIREMENTS, AND (5) THE BEST AREA FOR THE POSSIBLE APPLICATION OF CHEMICAL TREATMENT AND ADDITIVES LIES IN THE BORDERLINE FROST-SUSCEPTIBLE MATERIALS. ANALYSIS OF INSULATING COURSES AND MODIFICATION OF THERMAL PROPERTIES INDICATES THAT CELLULAR PLASTIC INSULATION, GRANULAR FORMS OF CELLULAR GLASS INSULATION AND COMPRESSED PEAT OFFER POSSIBILITIES WORTHY OF INVESTIGATION.

Media Info

  • Monograph Title: Highway pavement design in frost areas: a symposium
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00237699
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 16 1994 12:00AM