HYDROGENESIS AND EXPANSIVE SOILS IN COLORADO

HYDROGENESIS IS DEFINED AS THE GENERATION OF WATER. THE MECHANISM IS EXPLAINED; THROUGH IT WATER IS ACCUMULATED IN THE UNTREATED AGGREGATE BASES OF STRUCTURAL ROADWAY SYSTEMS. COLORADO'S EXPANSIVE SOIL PROBLEMS ARE MOSTLY CONFINED TO CUT SECTIONS IN CERTAIN DESCRIBED SHALES AND CLAYS. WATER ENTERING THE CUT SUBGRADES FROM ABOVE GROUND SOURCES IS CAUSING THE SWELLING AND HYDROGENESIS HAS BEEN FOUND TO BE AN IMPORTANT CONTRIBUTOR TO THIS MOISTURE PROBLEM. SUCCESSFUL EXPERIMENTAL PROJECTS AND FULL-SCALE CONSTRUCTION USING WATER PROTECTIVE MEMBRANES MADE FROM CATALYTICALLY BLOWN ASPHALT CEMENT ARE DESCRIBED. STUDIES ARE NOW BEING MADE IN COLORADO TO DETERMINE THE EFFECTIVENESS OF FULL-DEPTH BITUMINOUS BASE AS A WATER VAPOR BARRIER. SUCH CONSTRUCTION HOLDS PROMISE OF PERMANENTLY MAINTAINING A DRIER CONDITION IN THE CUT BASES, THEREBY REDUCING EXPANSION AND INCREASING SOIL-SUPPORT VALUES. RESEARCHERS AND DESIGNERS ARE CHALLENGED TO CONSIDER THE EVIDENCE PRESENTED AND TO TAKE STEPS TO PROTECT PAVEMENT STRUCTURES FROM THE HYDROGENESIS PHENOMENON. /AUTHOR/

  • Supplemental Notes:
    • pp 26-37, 5 REF
  • Corporate Authors:

    Sixth Paving Conference Proc

    ,    
  • Authors:
    • Brakey, B A
  • Publication Date: 1968

Subject/Index Terms

Filing Info

  • Accession Number: 00237803
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 2 1970 12:00AM