"GLASCRETE"--CONCRETE WITH GLASS AGGREGATE

Post-consumer glass represents a major component of solid waste, yet its use as an aggregate in concrete is problematic because of the strong alkali-silica reaction (ASR) between the cement paste and the glass aggregate. In a research project at Columbia University, the use of crushed waste glass as aggregate for concrete products was investigated. Fundamental aspects of ASR in concrete with glass aggregate were studied. It was shown that waste glass ground to U.S. standard sieve size No. 50 or smaller causes mortar bar expansions in the American Society for Testing and Materials C 1260 test of less than 0.1%, which is less than that of reference bars without any glass. Also, green glass does not cause any expansion to speak of, and finely ground green glass has the potential of an inexpensive ASR suppressant. Specific concrete products with glass aggregate are currently under development. These include concrete masonry blocks with 10% mixed color waste glass aggregate and glascrete products with 100% color-sorted glass aggregate for numerous architectural applications.

  • Availability:
  • Supplemental Notes:
    • This research was sponsored by the New York State Energy Research and Development Authority under contracts No. 4113-IABR-BR-95 and No. 4291-IABR-IA-96.
  • Corporate Authors:

    American Concrete Institute (ACI)

    38800 Country Club Drive
    Farmington Hills, MI  United States  48331
  • Authors:
    • Jin, W
    • Meyer, C
    • Baxter, S
  • Publication Date: 2000-3

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00792311
  • Record Type: Publication
  • Contract Numbers: 95-C-001, NSF/GER-9023496-02, CMS-9453467
  • Files: TRIS
  • Created Date: May 10 2000 12:00AM