Effect of superplasticizers on the consistency and unconfined compressive strength of cemented paste backfills

This paper assesses the effects of different types of high-range water reducer (HRWR) on the consistency (slump) and unconfined compressive strength (UCS) of cemented paste backfills (CPB) prepared mainly with tailings T1 at 80% solids mass content (a few tests were also conducted with tailings T2). A blended binder made of 80% ground granulated blast furnace slag and 20% GU (general use Portland cement) was prepared at three different...