LABORATORY EXPERIMENTS WITH LIME-SOIL MIXTURES

THE EXPERIMENTS WERE ORGANIZED ON THE BASIS OF SOIL TYPES USED. THE TESTS IN PART 1 WERE RUN ON FINE-GRAINED SOILS. TESTS IN PART 2 WERE PERFORMED ON NATURALLY-OCCURRING GRAVELS AND THOSE IN PART 3 ON SYNTHETIC GRAVEL-BINDER MIXES. ATTERBURG LIMIT TESTS WERE RUN ON 25 FINE-GRAINED SOILS. THE PLASTIC INDEXES OF SILTY SOILS WERE INCREASED SLIGHTLY BY ADDITIONS OF 2 AND 5 PERCENT OF HYDRATED LIME BUT THE PI'S OF CLAY SOILS WERE LOWERED APPRECIABLY BY THE LIME ADDITIVE. PROCTOR COMPACTION CURVES WERE PLOTTED FOR 11 OF THE FINE-GRAINED SOILS WITH 0, 2, AND 5 PERCENT OF LIME. WITH BUT TWO EXCEPTIONS, THE ADDITION OF LIME WAS ACCOMPANIED BY DECREASES IN MAXIMUM DENSITY. COMPACTION CURVES WERE PLOTTED FOR FIVE NATURAL GRAVELS TO DETERMINE OPTIMUM MOISTURE CONTENTS, AND CBR SPECIMENS WERE MOLDED AT OR NEAR THIS MOISTURE CONTENT WITH 0, 2, AND 5 PERCENT OF LIME. THE SYNTHETIC GRAVEL-BINDER MIXES USED IN PART 3 WERE FORMED BY USING 3, 5, AND 10 PERCENT, BY WEIGHT OF TOTAL SAMPLE, OF MATERIAL PASSING THE NO. 200 SIEVE. COMPACTION TESTS WERE RUN ON EACH COMBINATION AND CBR SPECIMENS WERE MOLDED WITH 0, 2, AND 5 PERCENT OF LIME. TESTS WERE MADE ON DIFFERENT SAMPLES AFTER THE THREE PERIODS OF CURING DESCRIBED ABOVE. THE SAME TRENDS IN STRENGTH, AS MEASURED BY THE CBR TESTS, WERE OBSERVED IN THESE SPECIMENS AS IN THE NATURAL GRAVELS. /AUTHOR/

  • Supplemental Notes:
    • Vol 28, pp 496,507, 7 FIG, 10 TAB, 3 REF
  • Authors:
    • Johnson, A M
  • Publication Date: 1949

Media Info

  • Monograph Title: Proceedings of the Twenty-Eighth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 7-10, 1948
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00233107
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 27 1971 12:00AM