WASTED SOLIDS (SOLID WASTE) AND PAVEMENT DESIGN

FEASIBILITY STUDIES CONCERNING THE POSSIBLE USES OF WASTED SOLIDS FOR THE IMPROVEMENT OF HIGHWAY AND STREETS WERE CONDUCTED DUE TO THE GROWING SHORTAGE OF GOOD NATURAL AGGREGATES PLUS THE PROBLEMS OF DISPOSITION OF SOLID WASTES--PARTICULARLY NON-BIODEGRABLE PRODUCTS. ANOTHER CONSIDERATION WAS THAT THE ORIGINAL COSTS OF THESE WASTED PRODUCTS ARE CONSIDERABLY HIGH. OF CONCERN WAS THE PRESENT FLEXIBLE PAVEMENT DESIGN AND MIXTURES WHICH HAVE ONLY LED TO PAVEMENT CRACKING--A STRESS RELIEVING INTERFACE WAS NEEDED. THE PRINCIPLE OF SELECTIVE DEWETTING WAS IMPLEMENTED TO INCREASE THE STRAIN CAPACITY OF MIXTURES. AGGREGATE COATED WITH PAPER PULP IN A COLD MIX MIGHT BE USED FOR SUPERIOR PERFORMANCE. ALL TYPES OF PAPER SOLIDS COULD BE USED. BEER BOTTLE PAVEMENTS, RUBBERIZED PAVEMENT, SCRAP PLASTIC PAVEMENT AND DRIED HORSE MANURE (DHM) STUDIES WERE PERFORMED IN THE LABORATORY TO DECREASE CRACKING OF THE SURFACE COURSE DUE TO THERMAL DISTRESS AND BASE OR FOUNDATION MOVEMENTS. CONSIDERING THE VARIOUS NEW METHODS FOR UTILIZATION OF WASTED SOLIDS, THE STRESS RELIEVING INTERFACE WAS DEVELOPED USING DONATED GROUND TIRES, EMULSION, SAND, ETC., OVERLAYING BASE MATERIAL. USED IN THIS WAY, PAVEMENT ANALOGS SHOW THAT THE STRESS RELIEVING INTERFACE (SRI) WILL IMPROVE A PAVEMENT SYSTEM OVER 400 PERCENT. IT IS PRIMARILY APPLICABLE TO MAINTENANCE OPERATIONS. GREATER IMPROVEMENT MAY BE ACHIEVED BY THE USE OF A FOUNDATION CRACK ARRESTER IMPLEMENTING A RUBBER-SAND INTERLOCKING LAYER WHICH UTILIZES SIDEWALL SECTIONS FROM DISCARED TIRES ARRANGED IN A GRID PATTERN BETWEEN THE BASE AND SUBBASE. SCRAP PLASTIC WAS ALSO EXPLORED TO IMPROVE ADHESION AND COHESION BETWEEN BINDER AND AGGREGATE IN ASPHALTIC CONCRETE. SCRAP GLASS AS AN AGGREGATE CAN REDUCE THERMAL DISTRESS BY A FACTOR OF 2 EXCEPT IN WARM CLIMATES AND THE USE OF GROUND TIRES ADDED TO THE SURFACE COURSE OF FLEXIBLE PAVEMENT IMPROVES THE MECHANICAL AGING INDEX. A MEMBRANE, USING GROUND TIRES, CAN REDUCE REFLECTION CRACKING DUE TO BASE MOVEMENTS BY OVER 400 PERCENT.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1606878
• Authors:
  • Bynum, D
• Publication Date: 1971-11

Media Info

• Features: Figures; References;
• Pagination: p. 56-60
• Serial:
  • Public Works
  • Volume: 102
  • Issue Number: 11
  • Publisher: Hanley Wood
  • ISSN: 0033-3840
  • Serial URL: http://www.pwmag.com

Subject/Index Terms

• TRT Terms: Aggregate mixtures; Flexible pavements; Pavement cracking; Paving; Solids; Utilization; Waste products (Materials); Wastes
• Subject Areas: Environment; Geotechnology; Highways; Maintenance and Preservation; Materials; Research;

Filing Info

• Accession Number: 00217204
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 28 2000 12:00AM