SLUDGE ASH PELLETS AS COARSE AGGREGATES IN CONCRETE

Work is reported that examined the potential of using sintered sludge ash pellets as a substitute for regular coarse aggregate in concrete. The paper reports work on the performance of aggregates in both fresh and hardened concrete. Compressive strength tests were conducted in accordance with specifications of the ASTM Test Method for Compressive Strength of Cylindrical Concrete Specimens. The results are compared with those of regular weight and lightweight concretes and interpreted in terms of pellet substitutions and their effects on strength and workability. The use of pellets as lightweight aggregate in structural concrete is also discussed. The study found that sludge ash pellets, with their smooth and spherical shapes, improve the workability of mixes and render uniform placement of concrete. These and other study findings are discussed.

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  • Corporate Authors:

    American Society for Testing and Materials (ASTM)

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • Bhatty, J I
    • Malisci, A
    • Iwasaki, I
    • Reid, K J
  • Publication Date: 1992

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Filing Info

  • Accession Number: 00623053
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 31 1992 12:00AM