Study on the Relationship Between the Addition Amount of New Cementitious Material and the Compressive Strength of Backfill in Mine Filling
A new type of cementing material for underground filling of mine has been successfully de-veloped because of the cementing property of industrial waste slag fly ash.In order to calculate the amount of cementing material added under different compressive strength requirements quickly and accurately,the quantitative relationship between the compressive strength and the amount of cementing material added un-der different curing ages was fitted by the compressive strength test and the unitary linear regression method.The developed new cementitious material not only effectively solves the environmental pollution problem caused by fly ash emission,but also reduces the filling cost because the cementitious material with fly ash as the main component is relatively low,so that the filling mining method can be more widely used in mining.
total tailingsfly ashcompressive strengthlinear relationship
NETL
NSTL
万方数据
维普
