STP740

    Field Density, Gradation, and Triaxial Testing of Large-Size Rockfill for Little Blue Run Dam

    Published: Jan 1981


      Format Pages Price  
    PDF Version (152K) 11 $25   ADD TO CART
    Complete Source PDF (12M) 11 $61   ADD TO CART


    Abstract

    The results of field density and gradation tests involving large-size compacted rockfill (sedimentary rocks) were used to establish gradation and compaction requirements for large-size (38-cm-diameter) and conventional (15-cm-diameter) triaxial tests. The gradation requirements were that the gradation curves for triaxial test materials should be parallel to the corresponding field gradiation curve, except for minor modifications to avoid excessive inclusion of fines. The angle of internal friction decreased as maximum particle size increased, in a manner similar to that reported by others. Extrapolation was used to check the φ-values used in design.

    Keywords:

    triaxial tests, gravel, rockfill dams, internal friction, density, grain size


    Author Information:

    Thiers, GR
    Senior staff engineer and vice president, Consultants, Inc., Monroeville, Pa.

    Donovan, TD
    Senior staff engineer and vice president, Consultants, Inc., Monroeville, Pa.


    Paper ID: STP28760S

    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP28760S


    CrossRef ASTM International is a member of CrossRef.