PHYSICAL PROPERTIES OF AGGREGATES STABILIZED WITH PAPERMILL WASTES

THIS INVESTIGATION COVERS THE DETERMINATION OF PHYSICAL PROPERTIES OF ROAD AGGREGATES STABILIZED WITH LIGNOSULFONIC ACIDS AND LIGNOSULFONIC ACID POLYMERS,INCLUDING THE EFFECTS OF HEAT TREATMENT AND THE INCORPORATION OF HYDRATED LIME. IN ADDITION, A LIMITED AMOUNT OF INFORMATION ON AGGREGATE STABILIZATION BY SPENT SULFITE LIQUOR IS PRESENTED FOR COMPARISON. THE PURPOSE OF THIS STUDY WAS TO INVESTIGATE THE POSSIBILITIES OF BETTER UTILIZED OF SULFITE LIQUOR WASTES FROM PAPERMILLS IN STABILIZING ROAD AGGREGATES. BECAUSE SULFITE LIQUOR IS WATER SOLUBLE, ATTEMPTS HAVE BEEN MADE TO PRODUCE MATERIALS OF HIGHER MOLECULAR WEIGHT FROM THIS LIQUOR, THEREBY DECREASING SOLUBILITY. AS A RESULT, LIGNOSULFONIC ACIDS AND THEIR POLYMERS HAVE BEEN EXPERIMENTALLY DEVELOPED. THE PHYSICAL PROPERTIES INVESTIGATED COMPRISED COMPRESSIVE STRENGTH, DENSITY, INSOLUBILITY, AND IMMERSION MOISTURE CONTENT. INSOLUBILITY WAS DETERMINED BY THE OPTICAL DENSITY AND THE FOLIN-DENIS METHODS. THE LIGNOSULFONIC ACID POLYMERS INVESTIGATED WERE LESS SOLUBLE IN WATER THAN THE LIGNOSULFONIC ACIDS. WITH RESPECT TO THE COMPRESSIVE STRENGTH, RELATIVELY GOOD RESULTS WERE OBTAINED WITH' /A/ THE HEAT-TREATED MIXTURE CONTAINING 1 PERCENT LIGNOSULFONIC ACID POLYMERS WITHOUT ANY HYDRATED LIME, AND /B/ THE NON-HEAT-TREATED MIXTURE CONTAINING 1 PERCENT LIGNOSULFONIC ACIDS WITH 3 PERCENT HYDRATED LIME. FOR THE AGGREGATES INVESTIGATED, MIXTURES CONTAINING 3 PERCENT HYDRATED LIME WITHOUT OTHER ADDITIVES, HEAT-TREATED OR NON-HEAT-TREATED, SHOWED RELATIVELY HIGH VALUES OF COMPRESSIVE STRENGTH AND PRACTICALLY NO SOLUBILITY. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 71-83
  • Monograph Title: Mechanical and physico-chemical properties of soils
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00217429
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jul 29 1994 12:00AM