A study on the mixed properties of green controlled low strength cementitious

Abstract In this study, two industrial wastes – circulating fluidized bed combustion co-fired fly ash (CFA) and ground granulated blast-furnace slag (GGBS) were used as green materials instead of cementitious in controllable low strength material (CLSM). CLSM was to backfill the pavement. should meet compressive requirements specification (under 8.24 MPa), it had self-consolidating characteristics concrete. order comply with self-consolidation, a mix design including superplasticizers, adhesives, accelerators ensure that proportion could both properties. The test methods included slump flow test, ball drop activity index, strength, mercury intrusion porosimetry, chlo-ride migration scanning electron microscope. A water/cement ratio 0.85 for requirements. CFA GGBS replace 78 wt.% cement, effectively workability, microscopic