SHELL BASE MIXES AND CHARACTERISTICS

THE RESEARCHER TESTED TWO NATIVE SOILS AND BEACH SAND AVAILABLE IN SOUTH ALABAMA USING VARIOUS MIXTURES OF SHELL AND PORTLAND CEMENT TO DETERMINE THE ACCEPTABLE COMBINATION TO MEET DESIGN CRITERIA. THE RESEARCHER RECOMMENDS THE MIXTURE FOR VARIOUS CBR AND COMPRESSIVE STRENGTH REQUIREMENTS. HE INCORPORATED INTO THE STUDY A HIGHWAY DEPARTMENT SUGGESTION TO REVISE THE PROCEDURE OF PREPARING THE TEST SPECIMENS. SPECIMENS WERE PREPARED DELAYING MOLDING FOR THREE HOURS AFTER THE OPTIMUM MOISTURE CONTENT HAD BEEN REACHED AND BY ADDING THE WATER IN INCREMENTS OVER A THREE HOUR PERIOD. IN BOTH CASES WHERE MOLDING WAS DELAYED THE COMPRESSIVE STRENGTHS WERE LOWER THAN WHERE SPECIMENS WERE MOLDED IMMEDIATELY AFTER OPTIMUM MOISTURE CONTENT WAS REACHED. /BPR/

• Corporate Authors:

  Auburn University

  Auburn, AL  United States  36830

  Alabama State Highway Department

  11 South Union Street
  Montgomery, AL  United States  36130

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Bransford, T L
• Publication Date: 1969-6

Media Info

• Pagination: 76 p.

Subject/Index Terms

• TRT Terms: Aggregates; Base course (Pavements); Beach sands; California bearing ratio; Compressive strength; Forming; Mix design; Moisture content; Portland cement; Soil tests; Specimens
• Uncontrolled Terms: Preparation
• Old TRIS Terms: Molding (Process); Optimum moisture content; Shell aggregates
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00230694
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Report/Paper Numbers: HPR 47
• Files: TRIS, STATEDOT
• Created Date: Aug 15 2004 1:39AM