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Use of Post-Consumer Corrugated Fiberboard as Fine Aggregate Replacement in Controlled Low-Strength Materials
Testing and Specification of Recycled Materials for Sustainable Geotechnical Construction
  • James L. Hanson, California Polytechnic State University - San Luis Obispo
  • Gregory M. Stone, Avocel Environmental
  • Nazli Yesiller, California Polytechnic State University, San Luis Obispo
Publication Date
1-1-2012
Abstract

This study was conducted to investigate the use of post-con­sumer corrugated board in controlled low-strength material (CLSM) applica­tions. Corrugated fiberboard (termed corrugate), which constitutes a significant fraction of the municipal solid waste stream in the United States (approximately one third by weight), was used as a partial replacement for fine aggregate in CLSM at aggregate replacement ratios ranging from 0 % (i.e., control) to 6 %. The corrugate was fiberized (i.e., repulped) in a blender prior to being mixed with other constituents in the CLSM. The density, air con­tent, and flow consistency of the fresh CLSM were determined, and bleeding was qualitatively assessed. Also, the unconfined compressive strength was determined for the resulting mixtures at different test ages. As the corrugate content increased, air content and water demand increased, density and compressive strength decreased, and some mixtures exhibited excessive bleeding. Corrugated fiberboard was determined to be effective as a fine ag­gregate replacement to produce mixtures with 28-day compressive strengths within the range for excavatable CLSM.

Citation Information
James L. Hanson, Gregory M. Stone and Nazli Yesiller. "Use of Post-Consumer Corrugated Fiberboard as Fine Aggregate Replacement in Controlled Low-Strength Materials" Testing and Specification of Recycled Materials for Sustainable Geotechnical Construction Vol. 9 Iss. 2 (2012) p. 562 - 579
Available at: http://works.bepress.com/jahanson/29/