ASPHALTIC BINDER STABILIZED ROADS

SOIL STABILIZATION IS "THE TREATMENT OF SOILS WITH ADMIXTURES WHICH EITHER INTRODUCE OR INCREASE A CERTAIN STABILITY ELEMENT (GRAVEL AND SAND FOR FRICTION AND INTER- LOCKING ACTION) OR CHANGE THE SOIL AS A RESULT OF PHYSICO- CHEMICAL REACTION." THE PURPOSE OF THESE ADMIXTURES IS TO PROVIDE A SOIL SYSTEM WHICH IS STABLE UNDER ALL CLIMATIC CONDITIONS AND TRAFFIC. ONE OF THE SIMPLEST METHODS OF CHEMICAL STABILIZATION INVOLVES THE SURFACE APPLICATION OF ROAD OIL TO EARTH SURFACES AT A RATE OF APPROXIMATELY ONE GALLON PER SQUARE YARD, PREFERABLY IN TWO OR THREE INCREMENTS. THE SUBOILED METHOD INVOLVES THE USE OF A SUBOILING MACHINE THAT CONSISTS OF A 4 WHEELED TRACTOR-DRAWN A FRAME, 7 1/2 FT. WIDE, ON WHICH ARE MOUNTED 31 SCARIFIER TEETH. THE PURPOSE IS TO SPREAD THE GRANULAR MATERIAL, IF ANY IS TO BE ADDED, UNIFORMLY OVER THE ROADWAY SO THAT IT IS READY FOR STABILIZATION. THE SCARIFIED LAYER IS PULVERIZED TO THE POINT THAT ALL MATERIAL WILL PASS FREELY BETWEEN THE SUBOILER TEETH. THE BITUMINOUS TREATING AGENT IS INTRODUCED AT ONE OR MORE DEPTHS AS IS ALSO A PREDETERMINED QUANTITY OF WATER, EXCEPT FOR EMULSIONS. FOR THE ROAD MIX METHOD, ONE OF THE DIFFERENCES IS THAT THE BITUMINOUS TREATING AGENT IS APPLIED IN INCREMENTS 1/2 GAL. PER SQUARE YARD (FOR 5 TO 6 IN. BASE THICKNESS). EACH APPLICATION IS INCORPORATED WITH THE SOIL AGGREGATE MIXTURE, TOGETHER WITH A SUFFICIENT AMOUNT OF WATER, BY MEANS OF DISKS AND GANG PLOWS.

  • Supplemental Notes:
    • Vol 18, ParT II, PP 292-298
  • Authors:
    • Reagel, F V
  • Publication Date: 1939

Media Info

  • Monograph Title: Proceedings of the Eighteenth Annual Meeting of the Highway Research Board Held at Washington, D.C. November 28-December 2, 1938. Part II: Soil Mechanics and Soil Stabilization
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00232918
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 22 1971 12:00AM