Abstract
As part of a novel approach of sustainable development of mine tailings, experimental and numerical analysis is carried out on newly formulated tailings matrices. Several physical characteristic tests are carried out including the unconfined compression strength test to ascertain the integrity of these matrices when subjected to loading. The current paper attempts a multiple regression analysis of the unconfined compressive strength test results of these matrices to investigate the most pertinent factors affecting their strength. Results of this analysis showed that the suggested equation is reasonably applicable to the range of binder combinations used.
Highlights
Mine tailings are the waste materials resulting from the mining industry; they typically contain all other hazardous materials except the extracted material, left out from the processing of the ore
As part of this research program, this is an attempt to investigate computationally, using multiple regression analysis, the effect Portland cement, slag, fly ash and Calsifrit have on the unconfined compressive strength of these mine tailings matrices
If different binder combinations and ratios are required, beyond the range used here, it is best to base a new equation on the new binder combinations
Summary
Mine tailings are the waste materials resulting from the mining industry; they typically contain all other hazardous materials except the extracted material, left out from the processing of the ore. To lessen the harmful effects from the storage and failure of tailings dams and to attempt to economically benefit from these tailings in a sustainable manner, a new approach of managing these tailings was deployed and tested by several researchers. Researchers such as Demers and Haile [4], Zou and Sahito [5], Celik et al [6] Roy at al. As part of this research program, this is an attempt to investigate computationally, using multiple regression analysis, the effect Portland cement, slag, fly ash and Calsifrit have on the unconfined compressive strength of these mine tailings matrices
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