Approximately 170 thousand tons of glass by-products are generated each year in Wisconsin alone.
Problems associated with glass recycling are breakage and mixing colors.
Two types of flowable concrete were developed as part of this project. For the Type I flowable concrete, a total of six different flowable slurry mixtures were developed. A control mixture containing no glass and five other mixtures were proportioned with glass as a replacement of fly ash in the range of 20 to 80 percent by weight. For Type II slurries, a total of three different slurry mixtures were developed. A control mixture and two mixtures proportioned with 30 to 75 percent replacement of sand with glass.