Experimental Research on Dry Shrinkage Performance of Ferrous Mill Tailings Stabilized with Inorganic Binding Materials

Abstract

Dry shrinkage performance of ferrous mill tailings stabilized with inorganic binding materials with the optimal ratio is studied through laboratory test. The curves of water loss-time and dry shrinkage strain-time are obtained. The comparisons to that of soil-lime are also made. It shows that the largest for water loss ratio and dry shrinkage strain is soil-lime, its dry shrinkage performance is the worst. The dry shrinkage strain of ferrous mill tailings stabilized with lime added a small amount of cement is increased, however, the compaction is increased and the amount of lime and cost is greatly reduced. The dry shrinkage performance of those materials: ferrous mill tailings stabilized with lime the best, then ferrous mill tailings stabilized with lime (cement), ferrous mill tailings stabilized with cement, soil-lime.