Road Performance of Cement Stabilized Gravel of Strengthened Shanxi Iron Tailings
To make the iron tailings gravel replace ordinary stone on a large scale,its performance needs to be further strengthened.Currently,the most used strengthening method for stone is spraying the curing agent on the surface of the stone to activate or reinforce its surface.In this paper,the iron tailings gravel was strengthened by three organic curing agents of sodium silicate,silane coupling agent,and organic silicone resin,and the most effective strengthening agent was selected by testing the physical properties.Adding the selected strengthening agent to strengthen the iron tailings of contents of 25％,50％,and 75％,and the durability of the corresponding cement stabilized iron tailings gravel was tested.The results showed that the sodium silicate had the optimum strengthening effect on the iron tailings.After the treatment with the sodium silicate,the dosage of the iron tailings gravel was increased from 25％-50％to 75％,and the water stability,freeze-thaw resistance,and scour resistance of iron tailings gravel mixtures were improved.
cement stabilized iron tailings gravelstrengtheningdosage of iron tailingsdurabilitysodium silicate
万方数据
维普
