USE OF HYDRATED LIME IN BITUMINOUS MIXTURES TO DECREASE HARDENING OF THE ASPHALT CEMENT: FINAL REPORT.

THE EVALUATION OF HYDRATED LIME ON ASPHALTIC PAVEMENTS WAS BASED ON VISCOSITY MEASUREMENTS OF THE EXTRACTED ASPHALTS BECAUSE LOWERING OF VISCOSITY IS AN INDICATION OF REDUCTION OF HARDNESS OF THE ASPHALT. FIELD AND LABORATORY STUDIES WERE CONDUCTED ON COMBINATIONS OF ASPHALTS AND AGGREGATES WITH AND WITHOUT HYDRATED LIME. THE VISCOSITIES OF THE ASPHALTS EXTRACTED FROM BITUMINOUS MIXTURES WITH HYDRATED LIME AS AN ADDITIVE WERE LOWER THAN THE VISCOSITIES OF ASPHALTS EXTRACTED FROM THE SAME BITUMINOUS MIXTURES WITHOUT HYDRATED LIME. ALONG WITH THE DECREASE IN VISCOSITY AN INCREASE IN THE DUCTILITY OF THE ASPHALTS WAS OBSERVED. A SAPONIFICATION REACTION IS BELIEVED TO OCCUR, RESULTING IN SOFTENING OF THE ASPHALTS STUDIED. /AUTHOR/

• Corporate Authors:

  Utah State Department of Highways

  757 West Second South
  Salt Lake City, UT  United States  84104
• Authors:
  • Liddle, W J
• Publication Date: 1971-12

Media Info

• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Asphalt cement; Asphalt hardening; Bituminous mixtures; Calcium hydroxide; Viscosity
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00211755
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 29 2004 5:06PM